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index

www.pedrotti.it

PEDROTTI NORMALIZZATI - www.pedrotti.it

Compact cylinders ISO 21287........................................................................................................

Pneumatic cylinder - Order code.....................................................................................................

Standard strokes.............................................................................................................................

WB - WBM magnetic action pneumatic cylinder...............................................................................

WF - WFM double magnetic action pneumatic cylinder...................................................................

QFL / VFL Fixing flange....................................................................................................................

Technical features.............................................................................................................................

57905 / 57915 Flow rate regulators...............................................................................................

57901/ 57910 Flow rate regulators.................................................................................................

5/2 Way - 1 Monostable electro-pneumatically actuated valves.......................................................

5/2 Way - 2 Bistable electro-pneumatically actuated valves.............................................................

Solenoids valves..............................................................................................................................

Connectors......................................................................................................................................

Technical features............................................................................................................................

Materials and components..............................................................................................................

Forces and consumption.................................................................................................................

p. 08

p. 09

p. 09

p. 10

p. 11

p. 12

p. 13

p. 14

p. 15

p. 16

p. 16

p. 17

p. 17

p. 18

p. 18

p. 19

index - PNEUMATIC CYLINDERS

3


index - COMpact hydraulic cylinders

Compact hydraulic cylinders............................................................................................................

Compact hydraulic cylinders - Order code and data........................................................................

RTP-X / MTP-X................................................................................................................................

RTP-A / MTP-A................................................................................................................................

RTP-B / MTB-B...............................................................................................................................

RTP-E / MTP-E................................................................................................................................

Sensors...........................................................................................................................................

Male threaded end EM....................................................................................................................

Male threaded end ET.....................................................................................................................

p. 22

p. 23

p. 25

p. 26

p. 27

p. 28

p. 29

p. 29

p. 29

4


index - iso hydraulic cylinders

Main features of hydraulic cylinders ISO 6020/2..............................................................................

CP – DP – MP.................................................................................................................................

Order code......................................................................................................................................

Features and selection of a cylinder.................................................................................................

‘X’ anchoring (ISO MX5)..................................................................................................................

‘A’ anchoring (ISO ME5)..................................................................................................................

‘A’ anchoring (ISO MS2)..................................................................................................................

Reed Sensors..................................................................................................................................

Connectors......................................................................................................................................

Hydraulic cylinders for moulds ISO 6020/2......................................................................................

p. 32

p. 33

p. 34

p. 35

p. 39

p. 40

p. 40

p. 41

p. 41

p. 42

5

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pneuamtic Cylinders


The new ISO 21287 standard compact cylinders have bores ranging from 20 mm to 100 mm; their overall dimensions are 50% smaller than ISO 15552 cylinders of the same size.

The great advantage offered by these cylinders is the ISO interface, which allows combination with the fixing devices used for ISO 15552 (ISO 6431 VDMA 24562) cylinders.

The ISO 21287 cylinders have a single and elegant design. The body has lengthwise cavities on three sides for housing and concealing the magnetic sensors. Elastic bumpers are present at the end of the stroke.

A version with male threaded rod is also available.

compact cylinders iso 21287

8


Pneumatic cylinder - order code

20 ▲●# ▲●# ▲●# ▲●# ▲●# ●# ●# ●#25 ▲●# ▲●# ▲●# ▲●# ▲●# ●# ●# ●#32 ▲●# ▲●# ▲●# ▲●# ▲●# ●# ●# ●# ●# ●# ● ● ●40 ▲●# ▲●# ▲●# ▲●# ▲●# ●# ●# ●# ●# ●# ● ● ●50 ▲●# ▲●# ▲●# ▲●# ▲●# ●# ●# ●# ●# ●# ● ● ● ●63 ▲●# ▲●# ▲●# ▲●# ▲●# ●# ●# ●# ●# ●# ● ● ● ●80 ▲●# ▲●# ▲●# ▲●# ▲●# ●# ●# ●# ●# ●# ● ● ● ●100 ▲●# ▲●# ▲●# ▲●# ▲●# ●# ●# ●# ●# ●# ● ● ● ●

WB Single magnetic action

WF Double magnetic action

WD Single magnetic action - thrust spring

WJ Double magnetic action pass-through rod

WFA Double magnetic action anti-rotation

▲

●

●

#

W B M 0 3 2 0 0 2 5

W SERIE

Execution

B = Single magnetic actionF = Double magnetic action

D = Single magnetic action - thrust spring [technical information on request]J = Double magnetic action pass-through rod [ technical information on request ]FA = Double magnetic action anti-rotation [ technical information on request ]

Diameter (mm)

20-25-32-40-50-63-80-100

Stroke (mm)

5 - 10 - 15 - 20 - 25 - 30 - 35 - 40 - 45 - 50 - 55 - 60 - 80 -100 -125 -150 -160 - 200Intermediate or longer strokes available on request

Versions / Version

= Female thread, standardM= Male thread rod

STANDARD STROKES

Ø MM. 5 10 15 20 25 30 40 50 60 80 100 125 150 200

9

▲


EE

CHTGE L1

TG E

RT

AF

KF

LABG

ØD1

T1ZA +

ZB +

ØD

ZA+ZB+A

KK

PL PL

EE

E

CH

TG

TG E

RT

AF

KF

ZA +ZB+

ØD

G G

T1

D1

PLPL

ZA +ZB+

G G

A

KK

++ = double stroke dimension and add it+= Adicionar o curso++= Adicionar 2 vezes o curso

+ = add stroke

Ø20-25

Ø-32-40-50-63-80-100

SINGLE MAGNETIC ACTION

20 10 36 1,5 16 M8x1,25 9 10 M6 18,5 5 M5 - 22 M5 8 6 4 39 4525 10 40 1,5 16 M8x1,25 9 10 M6 18,5 5 M5 - 26 M5 8 6 4 39 45,532 12 49 - 19 M10x1,25 10 12 M8 - - M6 14,5 32,5 G1/8 7,5 9 2,1 44 5140 12 55 - 19 M10x1,25 10 12 M8 - - M6 15 38 G1/8 7,5 9 2,1 45 5250 16 68 - 22 M12x1,25 13 16 M10 - - M8 14,5 46,5 G1/8 7,5 12 2,6 45 5363 16 78,5 - 22 M12x1,25 13 16 M10 - - M8 14 56,5 G1/8 7,5 12 2,6 49 57,580 20 98 - 28 M16x1,5 17 20 M12 - - M10 15,5 72 G1/8 7,5 12 2,6 54 64100 25 120 - 28 M16x1,5 22 20 M12 - - M10 20 89 G1/8 7,5 12 2,6 67 77

Ø MM ØD E L1 A KK CH AF KF BG LA RT G TG EE PL Ø D1 T1 ZA+ ZB +

magnetic ACTION pneumatic cylinder

+ = add stroke

WB - WBM

10


EE

CHTGE L1

TG E

RT

AF

KF

LABG

ØD1

T1ZA +

ZB +

ØD

ZA+ZB+A

KK

PL PL

EE

E

CH

TG

TG E

RT

AF

KF

ZA +ZB+

ØD

G G

T1

D1

PLPL

ZA +ZB+

G G

A

KK

++ = double stroke dimension and add it+= Adicionar o curso++= Adicionar 2 vezes o curso

+ = add stroke

Ø20-25

Ø-32-40-50-63-80-100

DOUBLE MAGNETIC ACTION

20 10 36 1,5 16 M8x1,25 9 10 M6 18,5 5 M5 - 22 M5 8 6 4 39 4525 10 40 1,5 16 M8x1,25 9 10 M6 18,5 5 M5 - 26 M5 8 6 4 39 45,532 12 49 - 19 M10x1,25 10 12 M8 - - M6 14,5 32,5 G1/8 7,5 9 2,1 44 5140 12 55 - 19 M10x1,25 10 12 M8 - - M6 15 38 G1/8 7,5 9 2,1 45 5250 16 68 - 22 M12x1,25 13 16 M10 - - M8 14,5 46,5 G1/8 7,5 12 2,6 45 5363 16 78,5 - 22 M12x1,25 13 16 M10 - - M8 14 56,5 G1/8 7,5 12 2,6 49 57,580 20 98 - 28 M16x1,5 17 20 M12 - - M10 15,5 72 G1/8 7,5 12 2,6 54 64100 25 120 - 28 M16x1,5 22 20 M12 - - M10 20 89 G1/8 7,5 12 2,6 67 77

Ø MM ØD E L1 A KK CH AF KF BG LA RT G TG EE PL Ø D1 T1 ZA+ ZB +

double magnetic ACTION pneumatic cylinder

+ = add stroke

WF- WFM

11


Fixing flange qfl

vflFixing flange

Material: Steel

Material: Steel

20 22 55 70 22 36 5,5 10 6,6 10 5,4 1225 26 60 76 26 40 5,5 10 6,6 10 5,4 12

32 7 32 10 45 64 8040 9 36 10 52 72 9050 9 45 12 65 90 11063 9 50 12 75 100 12080 12 63 16 95 126 150

100 14 75 16 115 150 170

Ø MM A B C D E F G H I L M

Ø MM P Q S R T V

12


technical FEATURES

13


CC

v BBv

CC

v BBv

Flow RATE RegulatorS

Pressures

Minimum pressure: 1 bar (0.1 MPa)Maximum pressure: 10 bar (1 MPa)

Temperature

Minimum temperature: -20 °C Maximum temperature: +80 °C

Connection pipes

Pipes in plastic material:PA6, PA11, PA12, Polyethylene, *Polyurethane, FEP, PTFE..*A hardness of 98 shore is recommended for polyethylene pipes.

Compatabile fluids

Compressed air

...00002 4 M5 4 19 38,5 - 42,5 8 10 10

...00003 4 1/8 5,5 21 44 - 49 14 10 10

...00004 5 M5 4 20 38,5 - 42,5 8 12,5 10

...00005 5 1/8 5,5 21,5 44 - 49 14 12,5 10

...00006 5 1/4 7 24,5 48,5 - 55 17 12,5 10

...00007 6 M5 4 20,5 38,5 - 42,5 8 12,5 10

...00008 6 1/8 5,5 22,5 44 - 49 14 12,5 10

...00009 6 1/4 7 25 48,5 - 55 17 12,5 10

...00010 8 1/8 5,5 24 44 - 49 14 14 10

...00011 8 1/4 7 26 48,5 - 55 17 14 10

...00016 8 3/8 7,5 28,5 56 - 65 20 14 10

...00017 10 1/4 7 28,5 48,5 - 55 17 17 10

...00012 10 3/8 7,5 30,5 56 - 65 20 17 10

...00013 12 3/8 7,5 32,5 56 - 65 20 21,5 10

...00014 12 1/2 9 35 62 - 69 24 21,5 10

...00015 14 1/2 9 35,5 62 - 69 24 21,5 10

CODE PIPE A B L1 L2 CH D CONF.

57905 / 57915

Code = ... = 57905 unidirectional by cylinder Code = ... = 57915 unidirectional by valve

14


CC

v BBv

CC

v BBv

Flow rate regulators

Pressures


Temperature

Minimum temperature: -20 °C Maximum temperature: +80 °C

Connection pipes

Plastic material pipes:PA6, PA11, PA12, Polyethylene, *Polyurethane, FEP, PTFE.*A hardness of 98 shore is recommended for polyethlene pipes.

Compatible fluids

Compressed air

L1

L2

CH

B

A

D

...00002 4 M5 4 19 29,5 8 10 10

...00003 4 1/8 5,5 21 31 14 10 10

...00004 5 M5 4 20 29,5 8 12,5 10

...00005 5 1/8 5,5 21,5 31 14 12,5 10

...00006 5 1/4 7 24,5 36,5 17 12,5 10

...00007 6 M5 4 20,5 29,5 8 12,5 10

...00008 6 1/8 5,5 22,5 31 14 12,5 10

...00009 6 1/4 7 25 36,5 17 12,5 10

...00010 8 1/8 5,5 24 31 14 14 10

...00011 8 1/4 7 26 36,5 17 14 10

...00016 8 3/8 7,5 28,5 42,5 20 14 10

...00017 10 1/4 7 28,5 36,5 17 17 10

...00012 10 3/8 7,5 30,5 42,5 20 17 10

...00013 12 3/8 7,5 32,5 42,5 20 21,5 10

...00014 12 1/2 9 35 47 24 21,5 10

...00015 14 1/2 9 35,5 47 24 21,5 10

CODE PIPE A B L1 L2 CH D CONF.

57901 / 57910

Code = ... = 57901 Unidirectional by cylinder Code = ... = 57910 Unidirectional by valve

CC

v BBv

CC

v BBv

15


Monostable electro-pneumatically actuated valves

Bistable electro-pneumatically actuated valves

01V S0 5 00 02 5/2 1/8”01V S0 5 00 03 5/2 1/4”01V S0 5 00 05 5/2 1/2”

CODE WAYS MEASURE

01V S1 5 00 02 5/2 1/8”01V S0 5 00 03 5/2 1/4”01V S0 5 00 05 5/2 1/2”

CODE WAYS MEASURE

5/2 ways - 1

5/2 way - 2

16


12 17.2 116.3

112216

9.15

8.1510

29.5

1.5

14 8.5

0.8

6M

3

12

M3

42

28

68.5

202230

11

5

Technical features

Technical features

Voltage tolerancesInsulation classProtection degreeWork cycleTerminals

Protection degreeSealCable diameter

IP65 IEC 60529 Profile seal6 ÷ 8 mm

Solenoid valves

*Solenoide Consigliato

Connectors

VDR: Supplied with varistor as overvoltage protection device.

CON0202400CON0211000CON0225000

CON0100001

WIRING DIAGRAM

VDR

R

LED

2

1

RED

21

SOL01012C1000 12V DC 3WSOL01024C1000 24V DC 3WSOL01024C3000* 24V DC 2WSOL01024A2000 24V AC 5VASOL01110A2000 110V AC 5VASOL01220A2000 220V AC 5VA

CODE VOLTAGE POWER

±10%F CEI EN 60085IP65 IEC 60529 with connector 100%DIN 43650 B

CON0100001 BLACK STANDARD WITH 2 POLESCON0202400 BLACK LED + VDR 0 - 24VCON0211000 BLACK LED + VDR 110VCON0225000 BLACK LED + VDR 220V

CODE COLOR FEATURES

17


1 Chromium plated steel piston rod (AISI 303 from 20 to 25) (C40 from 32 to 100) 2 Front head in anodized aluminium 3 Galvanized steel screw 4 Rod seal in polyurethane 5 Bushing in sintered bronze 6 O-RING seal in NBR

7 Piston seal in polyurethane 8 Magnet in plastoferrite 9 Aluminum piston 10 O-RING seal in NBR 11 Piston fixing nut in galvanized steel 12 Cylinder sleeve in anodized aluminium 13 Rear head in anodized aluminium

technical features

MATERIALS AND COMPONENTS

Pressure

Temperatures

Compatible fluids

Bores

Strokes

Operation


Minimum temperature: 0 °C (-20 °C with dry air)

Maximum temperature : +80 °C

Compressed air, filtered and non lubricated.

From 20 to 100 mm

Standard strokesFrom 5 to 200 mm

Single and Double-acting magnetic.Single pass-through piston rod and anti-rotation.

18


Forces and Consumption

THRUSTING AND PULLING FORCE

SPRING FORCES

CYLINDER CONSUMPTION

Ø20 10 Thrust = 314 28 55 85 110 140 170 195 220 250 280Pull = 235 21 42 60 85 105 125 150 170 190 210

Ø25 10 Thrust = 490 44 88 132 176 220 264 308 352 396 440Pull = 412 36 72 108 144 180 216 252 288 324 360

Ø32 12 Thrust = 804 72 144 216 288 360 432 504 576 648 720Pull = 691 62 124 186 248 310 372 434 496 558 620

Ø40 12 Thrust = 1257 110 220 330 440 550 660 770 880 990 1100Pull = 1144 100 200 300 400 500 600 700 800 900 1000

Ø50 16 Thrust = 1963 175 350 525 700 875 1050 1225 1400 1575 1750Pull = 1762 155 310 465 620 775 930 1085 1240 1395 1550

Ø63 16 Thrust = 3117 280 560 840 1120 1400 1680 1960 2240 2520 2800Pull = 2916 260 520 780 1040 1300 1560 1820 2080 2340 2600

Ø80 20 Thrust = 5027 450 900 1350 1800 2250 2700 3150 3600 4050 4500Pull = 4712 420 840 1260 1680 2100 2520 2940 3360 3780 4200

Ø100 25 Thrust = 7854 700 1400 2100 2800 3500 4200 4900 5650 6360 7000Pull = 7363 660 1320 1980 2640 3300 3960 4620 5280 5940 6600

Ø20 10 Thrust = 314 0,006 0,009 0,013 0,016 0,019 0,022 0,025 0,028 0,031 0,035Pull = 235 0,005 0,007 0,009 0,012 0,014 0,016 0,019 0,021 0,024 0,026

Ø25 10 Thrust = 490 0,010 0,015 0,020 0,025 0,029 0,034 0,039 0,044 0,049 0,054Pull = 412 0,008 0,012 0,016 0,021 0,025 0,029 0,033 0,037 0,041 0,045

Ø32 12 Thrust = 804 0,016 0,024 0,032 0,040 0,048 0,056 0,064 0,072 0,080 0,088Pull = 691 0,014 0,021 0,028 0,035 0,041 0,048 0,055 0,062 0,069 0,076

Ø40 12 Thrust = 1257 0,025 0,038 0,050 0,063 0,075 0,088 0,101 0,113 0,126 0,138Pull = 1144 0,023 0,034 0,046 0,057 0,069 0,080 0,092 0,103 0,114 0,126

Ø50 16 Thrust = 1963 0,039 0,059 0,079 0,098 0,118 0,137 0,157 0,177 0,196 0,216Pull = 1762 0,035 0,053 0,070 0,088 0,106 0,123 0,141 0,159 0,176 0,194

Ø63 16 Thrust = 3117 0,062 0,094 0,125 0,156 0,187 0,218 0,249 0,281 0,312 0,343Pull = 2916 0,058 0,087 0,117 0,146 0,175 0,204 0,233 0,262 0,292 0,321

Ø80 20 Thrust = 5027 0,101 0,151 0,201 0,251 0,302 0,352 0,402 0,452 0,503 0,553Pull = 4712 0,094 0,141 0,188 0,236 0,283 0,330 0,377 0,424 0,471 0,518

Ø100 25 Thrust = 7854 0,157 0,236 0,314 0,393 0,471 0,550 0,628 0,707 0,785 0,864Pull = 7363 0,147 0,221 0,295 0,368 0,442 0,515 0,589 0,663 0,736 0,810

Ø CYL. Ø ROD USEFUL SURFACE (MM2) WORKING PRESSURE IN BAR

Ø CYL. Ø ROD USEFUL SURFACE (MM2) WORKING PRESSURE (BAR)

1 2 3 4 5 6 7 8 9 100

1 2 3 4 5 6 7 8 9 100

Force developed in N

Air consumption in NL for every 10mm. of stroke

Ø20 Spring Load at Rest 15,7 14 12,2 10,4 8,7Compressed spring load 17,4 17,4 17,4 17,4 17,4

Ø25 Spring Load at Rest 19,5 18,5 17,3 16 15Compressed spring load 22 22 22 22 22

Ø32 Spring Load at Rest 27,8 25,3 22,8 20,2 17,7Compressed spring load 30 30 30 30 30

Ø40 Spring Load at Rest 36,4 34 31,7 29,5 27Compressed spring load 36 36 36 36 36

Ø50 Spring Load at Rest 32 30,5 29 27,8 26,5Compressed spring load 35 35 35 35 35

Ø63 Spring Load at Rest 61 58,5 56,3 53,5 51,5Compressed spring load 64,8 64,8 64,8 64,8 64,8

Ø80 Spring Load at Rest 91,3 88 85 82 78,7Compressed spring load 94 94 94 94 94

Ø100 Spring Load at Rest 150 145 140 134 129Compressed spring load 156 156 156 156 156

Ø CYL. SPRING LOAD STROKE

5 10 15 20 25Force developed in N

19

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compacthydrauliccylinders


Compact hydraulic cylinders

COMPACT CYLINDERS rtp SERIES

COMPACT CYLINDERS MTP SERIES

main FEATURES of THE hydraulic cylinders for molds

Double-acting cylinders made of light alloy with body machined from solid and anodized surface. They are characterized by their ove-rall dimensions being reduced in relation to their hydro mechanical properties.They are used above all for the automation of thermoplastic and die-casting molds.The many fastenings on the cylinder body allow easy and versatile installation.

Mechanical and dimensional similar characteristics to the RTP series.The piston contains a permanent magnet; this creates a magnetic field that activates the sensors located in the dedicated groves in the cylinder body. These cylinders are used for the automation of molds and industrial applications that require control of handling sequences.

Piston diameters (ø mm) 25 - 32 - 40 - 50 - 63 - 80 - 100

Rod diameters (ø mm) 18 – 22 – 28 – 36 – 45

Working pressure 120bar (without peaks) testing pressure 160 bar

Stroke length (mm) 20 – 50 – 75 – 100

Working temperature (°C) with VITON® seals (W) -20 ÷ +150

Seals in Viton + PFE

Chrome plated CK45 rod, 0.025 mm thick.

Working fluid Hydraulic Mineral Oil or Synthetic Oil and Phosphoric Esters

Body in special light alloy

RTP Series (standard series)

MTP Series (for use with magnetic sensors)

22


compact hydraulic cylinders - order code and data

Notes:• In order to compose the order code, follow the coding scheme by inserting in sequence the initials that identify the construction features of the cylinder, ignoring those not required.

• The sensors for the magnetic cylinders shall be required separately indicating the quantity and type and will be supplied separately.

Model (feed ports)All the models (with the same boring) have the same holes on the body (fixing holes, fitting key). They are distinguished by their feed ports: “X” Side connections, threaded on the body;“A” Front feeds with seal o-ring;“B” Rear feeds with seal o-ring;“E” Side feeds with seal o-ring.

A-B-E : cylinder is fed with fluid via canals machined on the tool that, with suitable fastenings and seal o-rings, convey the fluid under pressure to the actuator.

Stroke Series stroke 20 – 50 – 75 – 100 mm

SpacersIn addition to the standard strokes, intermediate values can be obtained by inserting spacers of 5, 10 and 15 mm, etc. inside the cylinder. The overall dimensions of the cylinder remain binding to the standard strokes.

Ex. Compact MTP cylinder, bore ø50, stroke length 30 mm.The body of an MTP cylinder bore ø 50 stroke length 50 mm, inside which a spacer of 20 mm is inserted to obtain the stroke length of 30 mm.

Sealing gaskets Standard in polyurethane Viton® “w” for temperatures up to 150° C.

Sensors Sct with reed contact for temperatures up to 80° C.Sctw with reed contact for temperatures up to 120° C.

RTP Standard 25 X Base cylinder 20 SJ 0 Standard Special variationsMTP Magnetic 32 A Front feed 50 5 W Viton

40 B Rear feed 75 1050 E Side feed 100 1563 …80100

SERIES Ø BORE (MM) MODEL (OR.AL) STROKE (MM) SPACER SEALS SPECIAL

MTP 50 X 75 SJ 50 W 50

23


compact hydraulic cylinders - data

The magnetic cylinders (equipped with their limit switches) must be installed at a minimum distance of 30 mm from each other.

If the magnetic cylinder is positioned in the cavity of a magnetic absorption ferrous system, a minimum distance of 20 mm must be kept from the external movement range of the cylinder to the metal wall immediately closer (excluding the fixing wall), so as to avoid deformation of the magnetic field and subsequent non activation of the sensors.It is advisable not to use magnetic limit switch cylinders in proximity of strong magnetic fields (e.g. resistance welding machines).The maximum current, working voltage and maximum power of contact switching must not be exceeded for any reason. In the event of inductive loads, at the moment of disengaging, a high peak voltage is produced (see solenoid valve); a suitable pro-tection circuit (R-C) or varistor must therefore be arranged to protect the sensor. The same effects occur when the wires of the sensor exceed 5 m in length.The inrush power (relay - fuse - filament lamp) is considerably higher (8-10 times) than the normal working power; the sensor must therefore be selected based on the inrush value.For bench adjustment of the position of the sensors, use of a ohmic tester is recommended.

Series connection of the sensorsThe SCT reed sensors (with two wires) allow series connection. Since voltage decreases by about 4 V per sensor, a ma-ximum of 2 sensors can be connected, provided that the feed voltage is not lower than 24 VDC. If you need 3 or more sensors to be connected in series, then use 3-wire sensors.

SX Special executionEvery type of special execution (extended rod, rod ends, fixing modifications, surface treatments, etc.)Has a correspondent drawing of ours.

WarningsThe cylinder must not be used up to stroke end, and the load displaced must stop on an external support, to avoid da-maging the hydraulic member (which would occur in a short time) and the risk of damaging property and/or persons.

24


compact hydraulic cylinders

25 18 57 65 45 14 50 30 30 6,5 14 G 1/4'' 12 22 M10 32 10 8,5 2 37 3032 22 60 75 55 18 55 35 34 8 15 G 1/4'' 12 22 M12 34 12 10,5 3 40 3040 22 73 85 63 18 63 40 34 7 17 G 1/4'' 14 24 M14 37 12 10,5 3 43 3550 28 75 100 75 24 76 45 42 8 20 G 1/4'' 16 25 M20 37,5 15 13 5 45 3563 28 85 115 90 24 90 55 50 7 20 G 3/8'' 21 29 M20 47,5 15 13 5 55 4080 36 100 140 110 32 110 75 60 7 20 G 1/2'' 25 35 M27 50 20 17 5 60 50

100 45 110 170 140 40 135 95 72 8 25 G 1/2'' 28 37 M33 60 20 17 5 70 60

AL. D A + B C CH D E F G H I L M N O P Q R S T

RTP-X / MTP-X

+ = add stroke

25


25 18 57 65 45 14 50 30 30 6,5 14 22 M10 32 10 8,5 2 37 30 25,5 4 610 (106)32 22 60 75 55 18 55 35 34 8 15 22 M12 34 12 10,5 3 40 30 30 4 610 (106)40 22 73 85 63 18 63 40 34 7 17 24 M14 37 12 10,5 3 43 35 32,5 5 610 (106)50 28 75 100 75 24 76 45 42 8 20 25 M20 37,5 15 13 5 45 35 40 5 610 (106)63 28 85 115 90 24 90 55 50 7 20 29 M20 47,5 15 13 5 55 40 47,5 7 013 (2043)80 36 100 140 110 32 110 75 60 7 20 35 M27 50 20 17 5 60 50 59 7 013 (2043)100 45 110 170 140 40 135 95 72 8 25 37 M33 60 20 17 5 70 60 70 7 013 (2043)

AL. D A + B C CH D E F G H M N O P Q R S T U Z OR

hydraulic cylinder front feed RTP-A / MTP-A

+ = add stroke

26


hydraulic cylinder rear feed

25 18 57 65 45 14 50 30 30 6,5 14 22 M10 32 10 8,5 2 37 30 25,5 4 610 (106)32 22 60 75 55 18 55 35 34 8 15 22 M12 34 12 10,5 3 40 30 30 4 610 (106)40 22 73 85 63 18 63 40 34 7 17 24 M14 37 12 10,5 3 43 35 32,5 5 610 (106)50 28 75 100 75 24 76 45 42 8 20 25 M20 37,5 15 13 5 45 35 40 5 610 (106)63 28 85 115 90 24 90 55 50 7 20 29 M20 47,5 15 13 5 55 40 47,5 7 013 (2043)80 36 100 140 110 32 110 75 60 7 20 35 M27 50 20 17 5 60 50 59 7 013 (2043)100 45 110 170 140 40 135 95 72 8 25 37 M33 60 20 17 5 70 60 70 7 013 (2043)

AL. D A + B C CH D E F G H M N O P Q R S T U Z OR

RTP-B / MTP-B

+ = add stroke

27


25 18 57 65 45 14 50 30 30 6,5 14 M10 32 10 8,5 2 37 30 24 22 7 4 610 (106)32 22 60 75 55 18 55 35 34 8 15 M12 34 12 10,5 3 40 30 24 22 7 4 610 (106)40 22 73 85 63 18 63 40 34 7 17 M14 37 12 10,5 3 43 35 30 24 10 5 610 (106)50 28 75 100 75 24 76 45 42 8 20 M20 37,5 15 13 5 45 35 35 25 10 5 610 (106)63 28 85 115 90 24 90 55 50 7 20 M20 47,5 15 13 5 55 40 35 29 15 7 013 (2043)80 36 100 140 110 32 110 75 60 7 20 M27 50 20 17 5 60 50 40 35 17 7 013 (2043)100 45 110 170 140 40 135 95 72 8 25 M33 60 20 17 5 70 60 50 37 20 7 013 (2043)

AL. D A + B C CH D E F G H N O P Q R S T W X Y Z OR

hydraulic cylinder side feed RTP-E / MTP-E

+ = add stroke

28


SENSORs

male threaded end “ EM“

male threaded end “ Et“

SCT with REED contact for temperatures up to 80°CSCTW with REED contact for temperatures up to 120°C

EM-10 17 20 M10 M10x1,25 14 6EM-12 19 20 M12 M12x1,25 16 7EM-14 22 25 M14 M14x1,5 18 8EM-20 30 30 M20 M20x1,5 28 9EM-27 36 40 M27 M27x2 36 12EM-33 46 50 M33 M33x2 45 14

ET-10 17 20 M10 6 7 16 10ET-12 19 20 M12 7 8 18 11ET-14 22 25 M14 8 8 18 11ET-20 30 30 M20 9 10 22 14ET-27 36 40 M27 12 12,5 28 18ET-33 46 50 M33 14 16 35 22

TIPO CH L N S T U

TIPO CH L N U V W Z

29

www.pedrotti.it

isohydrauliccylinders


MAIN PROPERTIES OF HYDRAULIC CYLINDERS ISO 6020/2Piston diameters (ø mm) 25 - 32 - 40 - 50 - 63 - 80 – 100 - 125 - 160 – 200Rod diameters (ø mm) 12 – 14 – 18 – 22 – 28 – 36 – 45 – 56 – 70 – 90 – 110 - 140

PressureWorking (Bar) 160Test (Bar) 220Minimum (Bar) 8

Stroke length (mm) up to 4000Stroke tolerance (mm) 0 + 2 (according to ISO 8131 standard)

Working temperature (°C)with standard seals-20 ÷ +80 with VITON® gaskets (W) -20 ÷ +150 with low friction gaskets (Y) -20 ÷ +90

Translation rate (m/s) with standard gaskets 0,02 ÷ 0,4with VITON® gaskets (W) 0,02 ÷ 0,4with low-friction gaskets (Y) 0,01 ÷ 5

Working fluid with reference (according to ISO 6743/4 - ISO 4406 standards)Hydraulic mineral oilSynthetic oil and phosphoric estersWater-glycol fluid (HFC)

Steel square heads assembled with 4 tie-rodsTie-rods made of quenched steel with rolled threadBronze rod guideFront and/or rear braking9 types of fixing attachmentsMale or female thread rod endStandard feed inlet ports with cylindrical gas thread, NPTF or SAE threads can be provided on request.

CP-DP SeriesSteel sleeve smoothed internally H8 Ra 0.4Chromium plated C45 steel rod, possible variations in quenched and tempered stainless steelSteel piston CD-DK series

MP series (with magnetic sensors)Sleeve in amagnetic material internally smoothed H8 Ra 0.4, Piston in special amagnetic alloyStainless steel piston with magnetic insert

Construction standard ISO 6020/2 – 1991 – DIN 24554

Piston diameters 25 - 32 - 40 - 50 - 63 - 80 - 100 125 - 160 - 200

Operating pressure (bar) 160 160

Test pressure (bar) 220 200 220

Minimum pressure (bar) 8

Stroke (mm) 5 - 4000 20 - 2000 5 - 3000

Tolerances on the stroke (mm) 0+2 According to standard ISO 8131

Working temperature (°c)

Standard seals -20 ÷ +80

Viton® seals (w) -20 ÷ +150

Low-friction seals (y) -20 ÷ +90

Translation speed (m/s)

Standard seal 0,02 ÷ 0,4

Viton® seals (w) 0,02 ÷ 0,4

Low-friction seals (y) 0,01 ÷ 0,5

Fluid

Hydraulic mineral oil - synthetic oils and phosphoric esters

Water - Glycol(hfc)

With reference to ISO 6743/4 – ISO 4406 standards

Braking Front and/or back

Magnetic sensors Only for MD series

Heads Steel square heads assembled with 4 tie-rods

Sleeve CD-DK series, in internally smoothed steel H8, MD series in special amagnetic alloy

Rod Chromium plated C45 steel, possible variations in quenched and tempered stainless steel

Piston CD-DK series in steel, MD series in stainless steel with magnetic insert

Rod guide Bronze

Tie rods Quenched and tempered steel

SERIES CP MP DP

32


HYDRAULIC CYLINDERS SERIEs: CP “ DP “ MP

magnetic variation series MP

1 Rod Chromium plated steel2 Flange Steel3 Guide bushing Bronze4 Front brake bush (on request) Steel5 Sleeve Steel6 Front brake bush (on request) Steel7 Rear brake (on request) Tempered steel8 Spacer (on request) Steel9 Piston Steel10 Rear brake (on request) Tempered steel11 Rear brake bush (on request) Steel12 Rear head Steel13 Self-locking nut Steel14 Tie rod Quenched and tempered steel15 Self-locking dowel Steel16 Brake adjuster Steel17 Rod scraper Polyurethane-nitrile rubber18 Rod seal Polyurethane-nitrile rubber19 O-ring + anti-extrusion ring Nitrile rubber + P.T.F.E.20 O-ring + anti-extrusion ring Nitrile rubber + P.T.F.E.21 O-ring Nitrile rubber22 Piston seal NBR/Acetal/ POM23 O-ring + anti-extrusion ring Nitrile rubber + P.T.F.E.24 Piston seal (Y) Nitrile rubber + P.T.F.E.25 Guiding sliding block P.T.F.E26 Rod seal Nitrile rubber + P.T.F.E.

27 Sleeve Amagnetic alloy28 Piston Stainless 29 Piston seal (Y) Nitrile rubber + P.T.F.E.30 Magnet Neodinium®31 Guide sliding block P.T.F.E

POS. NAME MATERIAL

POS. NAME MATERIAL

33


ORDER CODE

CP

MP

Special

versions

SR Sold

SH Separat.

. Standard

W Viton ®

Y Low-friction

For stroke

SJ 50 mm 1000-1500

100 mm 1500-2000

150 mm 2000-2500

For strokes above 2500contact our Technical Dept.

Standard Male thread

SF Female thread

ST Flanged rod end

SL Male threadDIN 24554

FL Female threadDIN 24554

Base cylinder MX5 X

Flangefront ME5 ME5 A

Feet MS2 MS2 E

DP

25

32

40

50

63

80

100

125

160

200

12-18

14-18-22

18-22-28

22-28-36

28-36-45

36-45-56

45-56-70

56-70-90

70-90-110

90-110-140

SERIES Ø BORE (MM) Ø ROD

(MM) ANCHORING BRAKING STROKE (MM) SPACER SEAL ROD END SENSORS SPECIAL

CP 50 / 28 - A K 600 SJ 50 W SF SR SX

ISO 6020/2 DIN 24554 Anchoring

Standard Without braking

V Front

Z Back

K Front and rear

Notes:• To create the order code follow the coding tables and enter in sequence the initials that identify the constructionfeatures of the cylinder, ignoring those not required.STANDARD: do not insert standard features.• The sensors for the magnetic cylinders, even if codified, are supplied separately and must be requested separately indicating thequantity and type.

I.e.: MP50/28A150 - N° 6 sensors SRMagnetic cylinder, bore ø50, rod ø28, fixing with front glange ME5, stroke length 150 mm. 6 sensors type SR are suppliedseparately.

34


Anchoring Rod connection Assembly Stroke

factor Anchoring Rod connection Assembly Stroke

factor

D - M - C

Articulated and supported

4

A -X - R - Q

Fixed and supported

2

Articulated and with stiff guide

2Fixed and with

stiff guide0,5

G - H - I

Articulated and supported

3Articulated and with stiff guide

0,7


1,5

B - T - S - Q

Fixed and supported

4

B

Fixed and with stiff guide

0,5Fixed and with

stiff guide1

Fixed and supported

2Articulated and with stiff guide

1,5


0,7

1 Construction series: CP standard - MP magnetic - DP large diameter - (160 bar)

2 Bore Choose in relation to the force to develop. The table below indicates the area of the thrusting and pulling of the piston depending on the piston rod used.

Tab.2.1

Multiplying the surface area (cm²) by the working pressure (Bar) equals the force (N) of thrusting and pulling of the cylinder. I.e. Cylinder ø 50 – rod ø 28Working at 100 BarThrusting force F1 = (19.6*100)*10 = 19600 N Pulling Force F2 = (13.5*100)*10 = 13500 N

3 Rod Choose the rod based on the diameter of the cylinder (Tab. 2.1) checking the buckling load in the following paragraph.

3.1 Verification of the buckling load During the thrusting stage, the rod is subjected to an opposing axial force that tends to bend it or break it if the allowed buckling load is exceeded. On the basis of the choice made, the load on the rod at its maximum extension must be checked, depending on the type of anchoring used.The table below indicates the value of the stroke factor FC.

Tab. 3.2 (REF.din6020/2 )

4,9 8 12,6 19,6 31 50 78 122 201 314

12 18 14 18 22 18 22 28 22 28 36 28 36 45 36 45 56 45 56 70 56 70 90 70 90 110 90 110 140

3,8 2,4 6,5 5,5 4,2 10 8,8 6,4 15,8 13,5 9,5 25 21 15,3 40 34,4 25,6 62,6 53,9 40 98 84,3 59,1 163 137 106 251 219 160

Ø PISTON (MM) 25 32 40 50 63 80 100 125 160 200

Features and selection of a cylinder

35


Tab. 3.3

Identify on the diagram the point of intersection between the value LI “ideal length” (mm) and the value F1 “maximum thrust” (N) outli-ned for the cylinder.The rod satisfying the buckling point verification is the one corresponding to the curve immediately above at the point of intersection identified on the diagram.

4 Double rod If so required, the creation of double-acting hydraulic cylinders with double rod is possible. You should keep in mind that with a double rod of equal diameter (with the same bore) the thrusting force F1 is equal to the pulling force F2; if the diameters of the rods are diffe-rent (but the bore is the same) the thrusting force F1 and the pulling force F2 must be calculated for each of them (see Table 2.1).

5 Anchoring14 types of anchoring are outlined.(Special anchoring can be provided on request)


36


6 Braking On request can be supplied braking devices machined in the heads and adjustable with a pin (except ø 25). These are designed to slow down the speed of the mass in proximity of the limit switches. It is recommended not to use the cylinder heads as the limit switches for the shifted load. Use of external stops is recommended in order to avoid damaging the hydraulic member (which would occur in a short time).During the slowing down stage, the braking systems are subjected to pressure much greater than the working pressure. For this rea-son they are constructed with suitable tempered and ground materials able to ensure optimal braking even after thousands of cycles.The table below indicates the length of theoretical braking with reference to the cylinder bores.

Tab. 6.1

The efficacy of the braking depends on many variables (mass, speed, temperature, etc..,) therefore the lengths indicated above are referred to the mechanical length of the shock absorber, not to be confused with the actual cushioning length.

7 Stroke The stroke can vary depending on the bores and the construction series.The minimum stroke for the MP magnetic cylinders is 20 mm so as to avoid the interference of the magnetic field with the sensors.For particularly long strokes pay attention to the type of anchoring so as to avoid radial loads and bending moments which can inte-ract with the rod-piston guide causing early wear and tear.In relation to the bore and to the type of anchoring with very long strokes, cross-pieces are inserted externally on the sleevein order to keep the tie-rods taut and make the assembly of the cylinder compact.

8 Spacers For strokes over 1000 mm, suitable spacers are mounted inside the cylinder so as to increase the guide for the rod and of the piston in order to avoid undesired wear.

Tab. 8.1

9 Sealing O-rings STANDARD = POLYURETHANE - NITRILE RUBBERUsed in the majority of the various types of cylinders, they ensure optimal sealing even in intermediate standing, guarantee a long duration and good efficiency at medium temperatures up to 80 °C. They have an acceptable friction coefficient and ensure good translation rates up to 0.4 m/s.

VITON ® (W) = ELASTOMERS, ETHYLENE PROPYLENEReliable at both low and high temperatures (-20 / +150 °C); optimal duration over time; good translation rates up to 0.4 m/s; particu-larly adapted to more frequently used fluids such as water-glycol (HFC). Leaks can occur at low pressure; not suitable for intermediate standing.

LOW FRICTION (Y) = THERMOPLASTICS P.T.F.E. LOADED IN BRONZE


25 32 40 50 63 80 100 125 160 200

10 12 20 20 20 25 25 28 28 30

10 12 20 20 20 25 25 28 28 30

1000-1500 1500-2000 2000-2500 >2500

50 100 150 Contact our Technical Dept.

BORE

FRONT (MM)

BACK (MM)

STROKES (MM)

SPACER (MM)

37

Suitable for high rates up to 5 m/s and low rates from 0.01 m/s; good resistance to medium temperatures up to 90 °C, excellent dura-tion over time. Lack of elasticity can cause leaks, therefore they are not suitable for intermediate standing.For the use of fluids, temperatures, speed rates and particular pressure values contact our Technical Department.


10 ROD END The rod ends rod are manufactured according to the ISO 6020/2 standards, in the following manner:

Tab. 10.1

10.1 ROD END DIN 24554Ends with “male thread” and “female thread” can be manufactured according to DIN 24554 standard. Consult our Technical Department.

11 SPECIAL EXECUTION SXSpecial versions means all those not included in the measures and/or figures of this catalogue.


A 14 16 18 22 28 36 45 56 63 85 95 112

B f9 24 26 30 34 42 50 60 72 88 108 133 163

CH 10 12 15 19 22 30 36 46 60 75 95 120

KK M10x1.25 M12x1.25 M14x1.5 M16x1.5 M20x1.5 M27x2 M33x2 M42x2 M48x2 M64x3 M80x3 M100x3

KF M8x1 M10x1.25 M12x1.25 M16x1.5 M20x1.5 M27x2 M33x2 M42x2 M48x2 M64x3 M80x3 M100X3

M 11 13 16 18 22 28 35 45 56 70 - -

N 6,5 8 10 11 14 18 22 28 35 45 - -

O 5 6 7 8 10 13 16 20 25 35 - -

P 10 12 14 16 20 25 32 40 50 70 - -

ROD 12 14 18 22 28 36 45 56 70 90 110 140

Stelo 12 18 14 18 22 18 22 28 22 28 36 28 36 45 36 45 56 45 56 70 56 70 90 70 90 110 90 110 140

VD 6 12 12 9 13 9 10 10 7 7

PISTON 25 32 40 50 63 80 100 125 160 200

38

STANDARD “SF” “ST” (male thread) (female thread) (end with floating joint*)


11.1 CONNECTIONS They are designed to hydraulically feed the cylinder from both sides and sized for a maximum travel speed of 0.5 m/s.On request they can be made in the position shown in the figure or increased as per the table below.

• Standard feed: position 1• Standard braking: position 3 - excluding anchoring “E”: position 2 (double rod in position 2 and 4)

For every other type of execution (extended rod - rod end - anchoring modifications - treatment etc...), please consult our Technical Department. They will submit you a drawing for your approval.


(*) = Dimension not compliant with ISO 6020/2 – 1991Insert closing flange (dimension F) to make the WF and B comply with standard ISO 6020/2DP series cylinders: for front head, F and g are replaced by GA - WF is replaced by WH

CP-MP DP

X ANCHORING “ (ISO MX5)

25 12 18 - 40 12 40 G1/4 10 32 - 5 7 49 (*) M5 28,3 25 15 30 45 (*) 114

32 14 18 22 47 15 45 G1/4 10 35,5 - 5 10 47 (*) M6 33,2 35 25 34 58 (*) 128

40 18 22 28 59 16 60 G3/8 10 46 - - 13 58 (*) M8 41,7 35 25 42 65 (*) 153

50 22 28 36 74 18 75 G1/2 16 45 - - 17 62 (*) M12 52,3 41 25 50 69 (*) 159

63 28 36 45 91 18 90 G1/2 16 45 - - 17 64 (*) M12 64,3 48 32 60 76 (*) 168

80 36 45 56 117 24 115 G3/4 20 52 - - 23 77 (*) M16 82,7 51 31 72 82 (*) 190

100 45 56 70 137 24 130 G3/4 22 55 - - 23 78 (*) M16 96,9 57 35 88 91 (*) 203

125 56 70 90 178 30 165 G1 22 65 87 - 30 117 M22 125,9 57 35 - 86 232

160 70 90 110 219 35 200 G1 25 70 95 - 35 130 M27 154,9 57 32 - 86 245

200 90 110 140 269 40 245 G1 1/4 25 92 117 - 37 165 M30 190,2 57 32 - 98 299

AL. Ø d AA BG E EE F G GA H KB PJ + RT TG WF WH XB (*) Y ZJ +

CP MP DP

25 - 32 / G 3/8"40 / G 1/2"

50 - 63 / G 3/4"80 - 100 / G 1"125 - 160 G 1 1/4" G 1 1/4"

200 G 1 1/2" G 1 1/2"Not valid for anchoring “E”

SERIES BORE FRONT REAR

INCREASED CONNECTIONS

39


'A' anchoring (ISO ME5)

CP-MP- DP

25 12 18 - 40 G1/4 10 5,5 32 5 32 7 49 (*) 27 38 51 65 25 45 (*) 114 114

32 14 18 22 45 G1/4 10 6,6 35,5 5 35,5 10 47 (*) 33 42 58 70 35 58 (*) 128 128

40 18 22 28 60 G3/8 10 11 46 - 46 13 58 (*) 41 62 87 110 35 65 (*) 153 153

50 22 28 36 75 G1/2 16 14 45 - 45 17 62 (*) 52 74 105 130 41 69 (*) 159 159

63 28 36 45 90 G1/2 16 14 45 - 45 17 64 (*) 65 88 (**) 117 145 48 76 (*) 168 168

80 36 45 56 115 G3/4 20 18 52 - 52 23 77 (*) 83 105 (**) 149 180 51 82 (*) 190 190

100 45 56 70 130 G3/4 22 18 55 - 55 23 78 (*) 97 125 (**) 162 200 57 91 (*) 203 203

125 56 70 90 165 G1 22 22 65 - 65 30 117 126 150 (**) 208 250 57 86 232 232

160 70 90 110 200 G1 25 26 70 - 70 35 130 155 170 (**) 253 300 57 86 245 245

200 90 110 140 245 G1 1/4 25 33 92 - 92 37 165 190 210 (**) 300 360 57 98 299 299

AL. Ø d E EE F FB G H JA KB PJ + R RD TO UO WF Y ZJ + ZJ +

(*) = Dimension not compliant with ISO 6020/2 – 1991(**) = Dimension corresponding to the upper diameter according to ISO 6020/2

(*) = Dimension not compliant with ISO 6020/2 - 1991

CP-MP DP

'a' anchoring“ (ISO MS2)

25 12 18 - 40 G1/4 10 32 - 5 32 19 49 (*) 6,6 73 8,5 54 72 25 15 45 (*) 11432 14 18 22 45 G1/4 10 35,5 - 5 35,5 22 47 (*) 9 73 12,5 63 84 35 25 58 (*) 12840 18 22 28 60 G3/8 10 46 - - 46 31 58 (*) 11 98 12,5 83 103 35 25 65 (*) 15350 22 28 36 75 G1/2 16 45 - - 45 37 62 (*) 14 92 19 102 127 41 25 69 (*) 15963 28 36 45 90 G1/2 16 45 - - 45 44 64 (*) 18 86 26 124 161 48 32 76 (*) 16880 36 45 56 115 G3/4 20 52 - - 52 57 77 (*) 18 105 26 149 186 51 31 82 (*) 190

100 45 56 70 130 G3/4 22 55 - - 55 63 78 (*) 26 102 32 172 216 57 35 91 (*) 203125 56 70 90 165 G1 22 65 87 - 65 82 117 26 131 32 210 254 57 35 86 232160 70 90 110 200 G1 25 70 95 - 70 101 130 33 130 38 260 318 57 32 86 245200 90 110 140 245 G1 1/4 25 92 117 - 92 122 165 39 172 44 311 381 57 32 98 299

AL. Ø d E EE F G GA H JA LH PJ + SB SS + ST TS US WF WH Y ZJ +

40


The limit switch is made up of a Reed contact soaked in synthetic resin; when close to a magnetic field (permanent magnet mounted on the piston), the contact closes generating an electric signal.

Type “STCW” with two wires with soaked cable (* per combination with Viton® seals and temperatures up to 120°)

Type “STCM8” with three wires with connecter (temperatures up to 85°)

Technical Characteristics

REED sensors

CONNEctors

brackets

Work voltage 0-30 V ac/dc 5-30 V dcReed current (max) 500 Ma 250 MaReed power (max) 10 W 10 va 10 W 8 vaLight indicator (led) None Yellow

Cable Pur 2x0,14mm² Pvc/pur 3x0,14mm²Cable length 2,5 M 0,15 M

Fixing Male M8 ConnectorWorking temperature -40°C / +120°c -20°C / +85°cDegree of protection IP67 IP67

Length 2 M 5 MFixing M8 female M8 female

N° poles 3 3

Depending on the bore diameter

25-32-40 50-63-80-100

FEATURES / CODE STCW STCM8

FEATURES / CODE CONN CONN5

FEATURES / CODE S70 S165

41


hydraulic cylinders for moulds ISO 6020/2

Inductive sensors:The limit switch is made up of a an oscillating circuit coil with ferromagnetic shielding; when getting close to a magnetic field (perma-nent magnet assembled on a piston), a specific intensity of the magnetic field causes a partial saturation of the shield that acts on the current of the oscillator circuit.This variation of current is transformed into an exit signal via an amplifier.

Warnings for the use of the magnetic cylindersThe magnetic field measured on the outside of the cylinder sleeve extends for around 5 mm in length, therefore pay attention to the mechanical positioning of the sensor so that the signal is generated as close to the length desired as possible. The magnetic cylinders (equipped with their limit switches) must be installed at a minimum distance of 30 mm from each other.If the magnetic cylinder is positioned in the cavity of a magnetic absorption ferrous system, a minimum distance of 20 mm must be kept from the external movement range of the cylinder to the metal wall immediately closer (excluding the fixing wall), so as to avoid deformation of the magnetic field and subsequent non activation of the sensors.It is advisable not to use magnetic limit switch cylinders in proximity of strong magnetic fields (e.g. resistance welding machines).The maximum current, working voltage and maximum power of contact switching must not be exceeded for any reason. In the event of inductive loads, at the moment of disengaging, a high peak voltage is produced (see solenoid valve bobbins); a suitable protection circuit (R-C) or varistor must therefore be arranged to protect the sensor. The same effects occur when the wires of the sen-sor exceed 5 m in length. The inrush power (relay - fuse - filament lamp) is considerably higher (8-10 times) than the normal working power; the sensor must therefore be selected based on the inrush value.For bench adjustment of the position of the sensors, use of a ohmic tester is recommended.

Connection in series of the sensorsThe SR reed sensors (with two wires) allow series connection. Since voltage decreases by about 4 V per sensor, a maximum of 2 sensors can be connected, provided that the feed voltage is not lower than 24 VDC. If you need 3 or more sensors to be connected in series, then use 3-wire sensors.

42

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