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SDVFDGRFVFDV DVRFREFSDCV VDFREFJNDCJNDJ DFVDVDSNVDNVFDJVNDJ DFVDFVDVD SVVDS SDVFVNEJGNFJVNFDJ BUKU MAJALAH DELOMPEROLESKAN DALAMF BAGI KUEALIDGF KALAH MENANG Dalam mengatasi krisis Minyak Bumi diindonesia, pemerintah telah membuat sebuah program konversi bahan bakar minyak ke bahan bakar gas. Indonesia merupakan salah satu negara yang kaya akan minyak bumi. Pada pertengahan tahun 1970-an, gas masih merupakan komoditi yang tidak menguntungkan sehingga hanya digunakan pada kebutuhan yang terbatas. Seiring dengan kemajuan teknologi dan permintaan gas yang meningkat dipasar dunia, maka eksploitasi gas mulai dilaksanakan dan indonesia merupakan salah satu eksportir gas terbesar didunia.

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Page 1: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

System Overview - Screw Jacks3.

3.5 Complete Solutions

ZIMM – Screw Jack Building BlockSystemWe lift, lower, push and pull loads from 5 to 1000 kN.• Efficient construction due to our ScrewJack Building Block System – all components compatible • All components from one supplier saves purchase costs.• Delivery of pre-mounted units and assembly groups, motors included • Short delivery times• Capable of bearing tension and compression loads• Attractive design• Stainless spindles and components on request• Custom components for specialistapplications on request.

020 © by ZIMM Austria - 2004

Page 2: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

© by ZIMM Austria - 2004 021

System Overview - Screw Jacks3.

3.6 Sizes

Screw Jack sizes are proportionally presented.The Screw Jack size corresponds to thestatic lifting capacity in kN.

MSZ-5MSZ-10

MSZ-25

MSZ-50MSZ-100

MSZ-150

MSZ-250

MSZ-350MSZ-500

MSZ-650

MSZ-750

Page 3: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

022 © by ZIMM Austria - 2004

Selection, Calculation, Checklists4.

Selection of Screw Jack System and Arrangement4.1 Consideration of application requirements

R versionrotating spindle

4.2 Parameter seechecklist 1 to 6

4.5 Required drive torque per screw jack4.6 Arrangement of screw jacks

4.5+6 Selection of motors

Defining system componentssee chapter 144.8 Determining lengths(spindle, protection tube)

4.9 Order code

Pre-selection of screw jack sizesee diagram on screw jack pages stat. / dyn. load (chapter 5+6)

Tensionload Compressionload4.3 Bucklingcalculation

Compressionload Tensionload4.4 Critical speed4.3 Bucklingcalculation

Pre-selection of Screw Jack sizesee diagram on Screw Jack pages stat. / dyn. load (chapter 5+6)

min.spindle diameter(maybe selecting a bigger screw jack type and check again)

Please note:We would be pleased if youcould specify the parametersof the application to enablethe component parts to beconfirmed.

4.7 Checking max. power torque(maybe selecting a bigger screw jack type and check again)

min.spindle diameter(maybe selecting a bigger screw jack type and check again)

S versionstanding spindle

Page 4: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

© by ZIMM Austria - 2004 023

Selection, Calculation, Checklists4.

Design & SpecificationThe customer, based on the applicationcriteria can determine the selection anddimensioning of the system from theinformation contained in this catalogue.On request we can provide design adviceand calculations to determine the correctcomponents and compile a full quotationbased on your application criteria.ZIMM guarantee the quality of all of thecomponents shown in the catalogue. Thescrew jacks are designed for industrial useand for loads & operational duty as statedin the catalogue. For further informationplease contact our sales department.Our deliveries are subject to the GeneralTerms of Sale and Delivery according toour catalogue (chapter 21).Lifting SpeedNormal version N: 1 mm stroke per movement of driveshaft (MSZ-150 and bigger sizes - higher speed acc. to table)at 1500 min-1:1,5 m/minSlow version L: 0,25 mm stroke per movement of drive(MSZ-150 and bigger sizes - higher speed acc. to table) at 1500 min-1:0,375 m/minIn order to increase the speed of thesystem the following options can be con-sidered:- Double pitch screw (Attention: max. input torque, system is not self-locking, system brake required)- Larger diameter spindle with R version (spindle of the next larger size): depending on the screw jack size faster pitch, higher torque requirement- Ball screw: various pitch options- Rotary pulse encoder: Enables an increase in motor speed of more than 1500. This system is only designed for

4.1 Construction Advice

light loads and low duty operation.To reduce system speed- Use a motor with more poles / lower speed (6, 8, 10 or 12 poles)- Rotary pulse encoder (for slower speed operation below 25 Hz an adequate method of cooling the motor is required)- Geared motor (Attention to max input torque is required)- Bevel gearbox with gear reduction (only for certain applications)Temperature and Operating timeScrew jacks are generally not designed for continuos operation.Max operational time is stated as ED inchapter 5 & 6. These values are for refe-rence only and must be checked againstthe individual application criteria. In bor-derline cases the next biggest gearboxmay require selection or contact our tech-nical dept. Operating temperatures shouldnot exceed 80 degrees.Parallelism and AngularityCare must be exercised to ensure that thesystems are parallel to each other as wellas level and aligned with the mountingsurfaces. Connecting shafts, pillow blocksetc. must be axially aligned with eachother.

GuidanceThe guide bushes incorporated in thescrew jack gearbox can only tolerate aplay of between 0.2 & 0.6mm are notdesigned to take high side forces on thesystem. For most appli-cations a suitable additional guidancesystem should be designed into theapplication to counteract any sideforces.Protection AgainstRotationWith the standingscrew version S the spindle is free runningwithin the gearbox (worm wheel). It istherefore necessary to protect the spindlefrom rotating due to the friction in theworm wheel. This can be achieved byincorporating an additional external gui-dance system or by using the protectionagainst rotation (mounted internally wit-hin the protective tube).

Page 5: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

024 © by ZIMM Austria - 2004

Selection, Calculation, Checklists4.

Design & Specification

A flat-machined surface is necessary. Thefour attachment bolts are designed forthe rated static loads of the gearbox intension and compression. Additional impactloads and vibration must be taken intoaccount (Grey cast iron housing GG25).The length of the mounting screws mustbe observed. Tension loads on the moun-ting bolts should be avoided. With un-known factors like shock and vibration werecommend additional protection of thescrew jack by using guide rails and threa-ded rods. This will ensure loads in tensionand compression are secured.Safety DistancesSafety distancesmust be observedbetween movingand stationarycomponentsotherwise there isthe risk of damageto the system.AccuracyThe repeataccuracy of thegearbox can beup to 0.05mm ifthe load is con-stant and in thesame direction.This requires alsosuitable controlof the drive system e.g. using a rotary voltage braked motor in connection witha frequency converter, a rotary pulseencoder or a servo motor with encoder, etc.

The pitch precision of the trapezoid screwis 0.2mm per 300mm of spindle length.With ballscrews it is 0.05mm per 300mmof spindle length.Under alternating load, tension & com-pression the axial play can be up to0.4mm with the trapezoid spindle and0.08mm with the ballscrew.For systems which require zero clearancewe recommend the use of the gearboxversion incorporating Anti-Backlash ABwith adjustment (chapter 10).

Direction of Rotation and Movement

Check the direction of the required rotation and detail this in your designdrawing or select one of the standardsystem layouts (chapter 4). With T bevelgearbox the direction of rotation can bechanged by rotating the gearbox around.Self-locking / OverrunScrew jacks with a single pitch trapezoidthread have a limited self-locking capabi-lity. Where shock or vibration is evident abrake should be incorporated into thesystem.The potential overrun after having stop-ped the motor differs from application toapplication. In order to minimise the over-run to a minimum we recommend to use abrake motor or a spring pressure brakeFDB. A braked motor is essential where adouble pitch trapezoid screw or ballscrewis used as they are not self locking.

DriveIn order toachieve softstart for acce-leration anddecelerationwe recommendthe use of a frequency inverter. The lifeti-me of the system will be increased and thenoise of the system will be reduced.Trial RunA trial run under normal operating condi-tion including load is necessary to ensurecorrect operation. On-site trial runs arenecessary to ensure precise alignment ofthe system and make any necessaryadjustments.Spare PartsIt is recommended that a range of spareparts gearboxes, spindles etc. are held byyour customer. This is especially relevantwhere high duty application are involved.Stage EngineeringZIMM systems are specified to meet theregulation of the Stage Lifting industry.Vehicles for Land, Air or WaterFor applications, which are mobile eitheron land, sea or air are generally excludedfrom our normal warranty terms. Specialconditions will apply. Please contact oursales department.Environmental ConditionsFor special applications outside of normalenvironmental conditions please contactour technical department.

4.1 Construction Advice

Page 6: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

© by ZIMM Austria - 2004 025

Selection, Calculation, Checklists4.

LubricationSufficient lubri-cation is essen-tial for the life-time of thesystem. Thespindle, gear-box & protec-tion against rotation must be suitablylubricated. The red lubrication strip for theprotection against rotation can be moun-ted in optional positions to meet yourrequirements. Please also see the automa-tic lubrication system (14.3.7) and mainte-nance instructions (chapter 16).Mounting, Operation and MaintenanceInstructionThe installation instructions (chapter 16)must be adhered to.Construction Advice for Plant Engineers:Where machined surfaces are used fewassembly problems should be encountered.However geometric errors can occur inwelded frames despite accurate assemblyand it is therefore important to considerthe following:Parallelism / Angularity:Screws and linear guides must be parallelotherwise the whole system could seize upduring operation. All mounting surfacesfor the gearboxes must be at right anglesto the linear guides otherwise wear ordamage to the components could occur.

4.1 Construction Advice

Printing errors, mistakes regarding dimensions, etc., as well as technical changes and improve-ments are excepted. Valid are the drawings which are have been checked and approved by bothpartners in accordance with the order acknowledgement.

The mounting surfaces for the nuts shouldalso be at right angles. The option of theself aligning nut should be considered forcertain applications (chapter 14).

Alternatively the use of the hinged bearing plate KAR could be considered (chapter 14).

Page 7: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

026 © by ZIMM Austria - 2004

Selection, Calculation, Checklists4.

4.2 Checklist - Page 1 - ParametersCompany: Date Address: Phone.: Contact: Fax: Departement: Number of pages:

1 Axial capacity in kN, max.- per gearbox kN per system kN- in tension kN in compression kN- load: static kN dynamic kN- installation position: vertical horizontal- idle impact load vibration2 Lift / Travel mm3 Lifting speedType N = 1.5 m/min. Type L = 0.375 m/min. (MSZ-150 and bigger: slightly different speeds)Customer’s requirements m/min (many variants are possible)4a Operating time, operating cycle lifts per day lifts per hour hours per day: 8 16 24 % operating time (ED) related to a 10 min period, for permanent operating see checklist page 2 (4b).5 Gear type: S standing spindle R rotating spindle6 Standard arrangement no. Dimension X1 X2 X3 Y see standard arrangements, checklist pages 5 and 6! 7 Accessories YES NO see checklist page 3 or 4!8 Motor: AC motor brake motor manual operationspring pressure brake incremental encoder linear measuring system limit switches (S version)9 Application objective / Function description

Operating conditions: Dry Humid Dusty Chips Ambient operating temperature: min. °C max. °C10 Quantity: piece prototype first11 Date: Offer: Delivery:

With an application sketch and thecompleted checklist it will enable us to submit our quotation more speedily.

Description:

Page 8: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

© by ZIMM Austria - 2004 027

Selection, Calculation, Checklists4.

4.2 Checklist - Page 2 - Operating Times

Example:

Idle time in sec. min. hoursFormula for calculating the relative operating period ED:

ED= operating periodte = operating time (in sec.)tp = idle time (in sec.)ED = x 100 = 22,2% per hour when operated 8hr/day

te∑(te+tp)ED = x 100 ED in %

10 sec. + 5 sec. + 5 sec. ∑(10 sec. + 5 sec. + 5 sec. + 5 sec. + 5 sec. + 60 sec.)

still 5 sec.

up 10 se

c.

down 5

sec.

still 5 sec.

still 60 sec.dwon 5 s

ec.

1 cycle 90 sec.

operatio

n time

se

c.

Only required for extended operating times and high duty cycles.4b Operating cycle for permanent operations / operation timesDiagrams with times in seconds or minutes, resulting operating period in percent %,with calculation8 16 or 24 hours - operation / day

Page 9: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

028 © by ZIMM Austria - 2004

Selection, Calculation, Checklists4.

4.2 Checklist - Page 3 - Accessories S(also see overview chapter 3.3)Execution:SN (standing spindle,normal speed)SL (standing spindle,low speed) Tension load [kn] staticallyTension load [kn] dynamically

Compression load [kn] staticallyCompression load [kn] dynamicallyPivot bearing headForked head

Rod endFixing flangeBellowsSpiral springHandwheelMotor with brakeMotor without brakeCouplingRotary pulse encoder

Motor flangeMounting bars

Hinged bearing plateSafety nut

Spring pressure brakeLimit switch

Lubrication stripProtective cap

Escape ProtectionProtective tube

Linear measuring system

Protection against rotation

base lin

e

Page 10: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

© by ZIMM Austria - 2004 029

Selection, Calculation, Checklists4.

4.2 Checklist - Page 4 - Accessories R(also see overview chapter 3.4)Execution:RN (rotating spindle,normal speed)RL (rotating spindle,low speed)

Tension load [kn] staticallyTension load [kn] dynamically

Compression load [kn] staticallyCompression load [kn] dynamically

Opposed bearing plate

Wear controlMounting barsCoupling

Handwheel

Tension Compression

BellowsFlat spiral spring coveringon topon bottomDuplex nut DM-1Flange nut FM (trapezoid)Flange nut KGT-FSelf-aligning nut PM-1Greaseless nut FFDMDriving flange TRMFLSafety nut

MotorMotor with brakeRotary pulse encoderMotor flangeHinged bearing plateSpring pressure brakeProtective cap

base lin

e

Page 11: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

4.2 Checklist - Page 5 - Standard Arrangements1

3

5

2

4

6

7

9

8

10

030 © by ZIMM Austria - 2004

Page 12: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

11 12

13 14

1516

17

© by ZIMM Austria - 2004 031

4.2 Checklist - Page 6 - Standard Arrangements

Page 13: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

032 © by ZIMM Austria - 2004

4.3 Critical Buckling Force of the Lifting Screw

There is a buckling risk especially withgearboxes with long, thin spindles in com-bination with compression load. With thefollowing calculation you can find themax. allowed axial load acc. to Euler.

If the max calculated load is lower thanrequired a larger spindle diameter couldbe selected. The calculations must then be reworked.With the rotating screw version a largerdiameter screw can be selected (from thenext bigger gearbox size). Any increase in pitch/ lifting speed must

be taken into account.The safety factors for the type of systemspecified must be used, as shown above,to calculate the max allowable axial loadfor the system.

Version Sguided lifting motion with hinged plateVersion Snon guided lifting motion,gear firmly mounted

Version Sguided lifting motion, gear firmly mountedVersion Rfor a small L1 there applies: fk = 2guided lifting motion

fk = 1 fk = 0,25 fk = 2 fk = 4

Critical b

uckling

force F k

in kN

free length L in mm

Maximum allowed axial loadFall = 0,8 x Fk x fk

Fall maximum allowable axial load (kN)Fk theoretical critical buckling force (kN) acc. to diagramfk correction value (considers kind of bearing support, respectively guidance of lifting load) see pictograms above

Page 14: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

© by ZIMM Austria - 2004 033

4.4 Critical Whirling Speed of Spindle - R Version

For R version gearboxes (with rotatingspindle) with long, thin spindles it isnecessary to calculate the max. allowablespindle speed. Please take the theoreticalcritical speed nkr from the diagram. Alsoconsider the additional lenghts for spindlecovers, etc. when calculating the unsup-ported screw lengths .Together with the correction factor forthe bearing layout the max. allowable

spindle speed can be calculated.If the calculated max spindle speed islower than that required, a larger spindleshould be selected. The calculations mustthen be reworked.If a larger diameter spindle is used in theR version the potential for higher drivetorque's must be considered.

The safety factors for the type of systemspecified must be used, as shown above,to calculate the max allowable axial loadfor the system.

Maximum allowable spindle speednall = 0,8 x nkr x fkr

with opposed bearing plate

fkr = 1

without opposed bearing plate

fkr = 0,5

unsupported screw lengths [m]

theoretic

al spindl

e whirlin

g speed

n kr[min-1 ]

input speedigearboxspindle speed =

Page 15: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

034 © by ZIMM Austria - 2004

4.5 Determining the Drive Torque [MG] of a Lifting GearWith the formula shown below it ispossible to calculate the necessarydrive torque. In order to facilitate the calculation ofthe drive torque we have determinedmultiplication factors out of this for-mula and have stated them in thetechnical data for the single gearboxversion.

Formula1): Example:

Drive torque: MG = + ML [Nm]

Power of motor: PM[kW] =

F [kN] . P [mm]2 . π . ηGearbox . ηSpindle . iMG [Nm] . n [min-1]9550

MG = + 0,36 Nm = 6,21 Nm12 kN . 6mm2 . π . 0,87 . 0,375 . 6

PM = = 0,975 kW6,21 Nm . 1500 min-1

9550Example: 0,975 kW . 1,4 = 1,365 kW motor 1,5 kWSafety factor (start torque) = calculateddrive torque x 1.3 to 1.5 (for smallersystems use up to x 2).

1) For gearboxes with one-pitch trapezoidal spindles it is also possible to multiply thefactor which is stated on the corresponding gearbox page with the load.The efficiency of a trapezoid screw issubstantially lower than that of ballscrews due to friction.However, the trapezoid screw istechnically more simple and morefavourable. A safety device (e.g. abrake) is rarely required for trapezoidscrews due to their self-locking

capability.With a ballscrew system an efficien-cy factor of η=0,9 can be used. It is essential to incorporate a breakinto a ballscrew system.

Tr spindle ηSpindleEfficiencysingle pitchTr spindle ηSpindleEfficiencydouble pitch

Tr1218203040506080100120140

P3446781216161620

ηlubricated0,4270,3990,3750,3750,3440,3140,3680,3680,3140,2730,288

Tr1218203040506080100120140

P6881214162432323240

ηlubricated0,5920,5650,5400,5400,5090,4740,5320,5320,4740,4260,444

MSZNL20,820,77

50,840,62100,860,69

250,870,69500,890,74

1000,850,651500,840,67

2500,860,723500,870,70

5000,840,626500,850,65

MSZNL20,060,04

50,100,08100,260,16

250,360,26500,760,54

1001,681,021501,901,20

2502,641,943503,242,20

5003,962,846505,603,40

Efficiency of gearboxes ηGearbox (without spindle) at n = 1.500

Idling torques ML of gearboxes [Nm]

With ball screws you basically can calculate with an efficiency factor of η=0,9.

MSZ-25-SNF = 12 kN (lifting load dynamic)ηGearbox = 0,87 ηSpindle = 0,375P = 6 i = 6

MG Required drive torque [Nm] of a lifting gearF Lifting load (dynamic) [kN]ηGearbox Efficiency of the lifting gear (without spindle) ηSpindle Efficiency of the spindleP Spindle pitch [mm]i Transmission of the lifting gearML Idling torque [Nm]PM Power of motor

!

Page 16: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

© by ZIMM Austria - 2004 035

4.6 Drive Torque for Gearboxes

Attention:It is recommended to multiply the cal-culated value with a safety factor of1.3 to 1.5 (for smaller systems factorup to 2). The indicated values are appli-cable in cases of uniform distributionof the lifting gear load onto all gears!

MR – Total drive torque for the whole systemMG - Input torque of a single gearboxMA – Starting torque max. 1,5 x MR

Example (example from the left page, 12 kN per gearbox)

MR = MG x 4,6 = 6,21 Nm x 4,6 = 28,57 Nmx safety factor 1,3 = 37,14Nm

MR = MG x 2,25

MR = MG x 2,1 MR = MG x 3,1 MR = MG x 3,35

MR = MG x 4,6 MR = MG x 6,8 MR = MG x 4,4

MR = MG x 3,34 MR = MG x 3,27

CalculationThe required drive torque of a lifting gearresults from the sum of the moments ofthe individual lifting units. This is increa-sed due to frictional losses of transmissioncomponents like couplings, connectingshafts, bevel gears, etc.

To simplify the calculation, some factorsfor determining the drive torque in themost common applications are providedbelow.

Page 17: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

036 © by ZIMM Austria - 2004

4.7 Maximum Power / MomentsLoad definitionsF - Lifting load tension and/or compressionFS - Side forces on the spindlevH - Lifting speed of the spindle (or nut of the R version)FA - Axial load of the input shaftFR - Radial load of the input shaftMR - Drive torquenR - Drive speedPlease examine the information on the following pages before making your choice of the lifting gear suited for yourapplication. Various influences and assumptions can only beestimated on the basis of information gained by experience.In case of doubt please contact our sales engineers.

Side forces on the spindlePlease refer to the ajoining table for themaximum permissable side force. Side for-ces should be supported by a guidancesystem whenever possible. The bronzebushings in the gearbox are a secondarysupport only and should not be reliedupon as adequate guidance. The maximumside force at a given screw extension mustnot exceed that stated in the ajoiningtable.Attention: only statically allowed!

Max. drive torqueThe stated values of the table on the rightshould not be exceeded. If gearboxes arearranged in tandem or in larger arrange-ments the maximum drive torque may behigher. If there are more than 5 gearboxesin an arrangement please contact oursales engineers.

Radial load on the input shaftThe radial forces of the table on the rightshould not be exceeded if you use chaindrives or belt drives.

MSZ5102550100150250350500650750

TypeMR SN/RNMR SN/RNMR SL/RLMR SL/RL

min-1

15005001500500

SHZ-020,71,00,50,7

MSZ-56,410,42,64,3

MSZ-1012,620,55,38,4

MSZ-2521,734,27,812,5

MSZ-5044,770,315,524,5

MSZ-10072,0114,917,027,8

MSZ-15067,3107,017,327,7

MSZ-250118,4185,123,536,6

MSZ-350187,0295,740,263,9

MSZ-500204,3325,642,871,2

MSZ-650268,3427,962,8102,6

MSZ-750415,0663,083,0132,0

100360600900300050005500900015000290003480046000

200160280470200040005000900013000290003480046000

300100180300130030003900650012000290003480039000

4007013024090023002800490010000290003480036000

500551001807001800230038008800290003480032000

60045801506001500180030007000240002880030000

70038701305001300150025006000200002400025000

80032601104201100130022005500170002040029000

9002850100380950120020004800150001800025000

1000254790330850100019004300140001680023500

120020407028070085014503500120001440020000

15001830602306007501250300090001080017000

200012204516040050090020007000840012000

2500–153513035040076016005600672010000

3000––301002503506601400490058808000

maximum side force FS [N] (static) extended screw length in mm

maximum drive torque MR [Nm]

maximum radial load acting on the input shaft FR [N]

FR max.SHZ-0218

MSZ-5110

MSZ-10215

MSZ-25300

MSZ-50520

MSZ-100800

MSZ-150810

MSZ-2501420

MSZ-3502100

MSZ-5003780

MSZ-6504536

lifting screw

input shaft= worm shaft

F

FS

VH

MR nR

FR

- Consider that the starting torque is factor 1.5 of the operation torque- Limit values are mechanical - consider thermical factors depending on operating time

FA

Page 18: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

© by ZIMM Austria - 2004 037

4.8 Calculating Spindle and Protective Tube LengthsThe following tables will allow calculationof the required spindle and protectivetube length for the screw jack systemselected.BasicDepending on gearbox version and systemcomponents the spindle (and protectivetube for S version) have to be extended.

These lengths are important. For non stan-dard layouts please provide a drawing orcontact the technical department.

Stroke + basic length (+ extensions for variants/system components)Example S:

MSZ-25-SN, stroke: 250 mmbellow MSZ-25-FB-300 (compression ZD=70mm)fixing flange BF (therefore bellow without retainer)protection against rotation VSlimit switch ESSETSpindle length Tr:

250 + 180 + 43 + 44 = 517 mmstroke basic length bellow limit switch spindle length(70-27=43) + protection against rotationprotective tube length SRO:250 + 55 + 71 = 376stroke basic length limit switch protective tube length+ protection against rotation

Example R:MSZ-25-RN, stroke 250 mmspindle with pilot (opposed bearing plate GLP)bellow MSZ-25-FB-300 (compression ZD=70mm) below and aboveduplex nut DMSpindle length Tr:250 + 145 + 60 + 55 + 50 = 560 mmstroke basic length bellow gearbox-sided 2. bellow duplex nut spindle length(70-10=60) (70-15=55)

Length calculation for connecting shafts can be found in chapter 14.4.

Page 19: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.038

© by ZIMM Austria - 2004

4.8 Length Calculation, Standing Version S - SpindleTr basic lengthTr basic length with safety nutTr basic length Anti-BacklashKGT basic length

Escape prot./prot. against rot. (evtl. WMS)Limit switch3) (+evtl. linear measuring syst.)ES3) and hinged bearing plate (evtl. WMS)

MSZ-5139

16x05 20316x10 223

154163

MSZ-10161

25x05 23825x10 25825x25 32825x50 458204563

MSZ-25180

32x05 26332x10 27332x20 30332x40 373204469

MSZ-50240

40x05 32640x10 32640x20 35640x40 416305580

MSZ-100325

50x10 43050x20 470

305590

MSZ-150338

63x10 427

304895

MSZ-250386

----3048107

MSZ-350434

----3553119

MSZ-500524

----4058154

MSZ-650573

----4059154

- 192 216 276 362 384 467 522 626 676

spindle extension S version below gearbox (tube side)

spindle extension S version above gearboxBellows with bushing (GK / KGK)1)Bellows without bushing (BF / SLK)1)Bellows and KAR with FBR (GK / KGK)1)Bellows and KAR without FBR (BF / SLK)1)

MSZ-05ZD -2ZD -22ZD +32ZD +12

MSZ-10ZD +1ZD -24ZD +34ZD +9

MSZ-25ZD +5ZD -27ZD +53ZD +22

MSZ-50ZD +10ZD -36ZD +67ZD +21

MSZ-100ZD +8ZD -40ZD +81ZD +33

MSZ-150ZD +2ZD -18ZD +71ZD +51

MSZ-250ZD +2ZD -18ZD +93ZD +73

MSZ-350ZD +2ZD -18ZD +114ZD +94

MSZ-500ZD +2ZD -18ZD +136ZD +116

MSZ-650 2)ZD +2ZD -18ZD +128ZD +108Safety distances are already included in basic lengths! (Tr spindle: 10mm up to MSZ-100, 16mm from MSZ-150, for KGT see chapter 9.1, dimension L3)1) The value will be added or subtracted to the ZD dimension of the bellow - the result will then be added to the spindle lenght.(e.g. ZD = 70 >> “ZD-22” = 48 mm >> spindle extension for bellow is 48 mm)2) Bellow, bellow ring and bellow adapter are similar to MSZ-5003) Limit switches ES are always in combination with protection against rotation VS (VS is in the extension included)Spindle extension for spiral spring covering SF: As the extension of the spiral spring covering differs depending on the attachment,this variant has to be calculated graphically. If necessary we would be pleased to generate this drawing.

Abbreviations: AS Escape protection KAR Hinged bearing plateBF Fixing flange KGK Rod endES Limit switch SLK Pivot bearing headFBR Bellows connecting ring WMS Linear measuring systemGK Forked head ZD Compression

Page 20: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

© by ZIMM Austria - 2004039

4.8 Length Calculation, Standing Version S – Protective Tube SROMSZ-1050

25x05 6025x10 80

25x25 15025x50 28020729036

MSZ-54816x05 6016x10 80

15699131

MSZ-255532x05 6532x10 75

32x20 10532x40 17520719636

MSZ-506440x05 7440x10 74

40x20 10440x40 164308210746

MSZ-1007550x10 95

50x20 135

308211746

MSZ-1508763x10 95

306911646

MSZ-25092----306912846

MSZ-350102----357414051

MSZ-500112----407917556

MSZ-650112----407917456

protective tube extension S version

46116 47117 37107 37107 37107 37107 32102 2797 2797

1) Basic length of protective tube without cap - to achieve the whole protective tube length add another 5mm for the cap

Attention: minimum stroke with limit switch ES:

2) Is a lower stroke required as stated above, the limit swithces and the lubrication strips have to be mounted on two different sides (assembly position)!3) Limit switches ES are always in combination with protection against rotation VS (VS is in the extension included)

Tr basic length 1)KGT basic length 1)

Escape prot./prot. ag. rotat. AS/VSLimit switch ES3) (+ evtl. WMS) + VSES3) and hinged bearing plate KARVS + Linear measuring system WMS

min.stroke with limit switch ES 3) 2)min.stroke with ES3) + lubric. strip 2)48118

Page 21: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.040

© by ZIMM Austria - 2004

4.8 Length Calculation, Rotating Version R - SpindleTr basic length without machined endTr basic length with machined end (= stan-dard for opposed bearing plate GLP)Tr basic length larger diameter with machined end 1)KGT basic length without machined end 2)

KGT basic length larger diameter withoutmachined end 2)

KGT basic lenth with machined end 2)

KGT basic length larger diameter withoutmachined end 2)

Flange nut FMDuplex nut DMSelf-aligning nut PMGreaseless nut FFDMDM + Safety nut SIFAPM + Safety nut SIFA1. FB gearbox-nut 5)2. FB nut-opposite bearing plate 5)KAR6) spindle-sided and1. bellow 5)

MSZ-0593

11316x05 14516x10 178

25x05 14525x10 17825x25 22825x50 38116x05 16016x10 193

25x05 16525x10 19825x25 24825x50 4013545785370123ZD -12ZD -10ZD +18

MSZ-10106

13125x05 15825x10 19125x25 24125x50 39432x05 17132x10 19532x20 23632x40 27125x05 17825x10 21125x25 26125x50 41432x05 19632x10 22032x20 26132x40 2964445835384128ZD -12ZD -14ZD +18

MSZ-25120

15032x05 18532x10 20932x20 25032x40 28540x05 18740x10 20140x20 24040x40 30532x05 21032x10 23432x20 27532x40 31040x05 21740x10 23140x20 27040x40 3354650955995158ZD -10ZD -15ZD +32

MSZ-50163

20840x05 23040x10 24440x20 28340x40 34850x10 27850x20 318

40x05 26040x10 27440x20 31340x40 37850x10 32350x20 363

667012985133212ZD -12ZD -15ZD +32

MSZ-100212

26750x10 32750x20 367

63x10 35263x20 422

50x10 37250x20 412

63x10 40763x20 477

9090190-173300ZD -12ZD -10ZD +46

MSZ-150251

32663x10 37963x20 449

80x10 37980x203) 45980x204) 47463x10 43463x20 504

80x10 45480x203) 53480x204) 549

115210-211330ZD -18ZD -26ZD +42

MSZ-250279

37980x10 407

80x203) 48780x204) 502

80x10 48280x203) 56280x204) 577

140224-249374ZD -18ZD -36ZD +65

MSZ-350311

431

160--266-ZD -18ZD -56ZD +80

MSZ-500352

472

180--303-ZD -18ZD -21ZD +100

MSZ-650387

-

-220----ZD -18ZD -41ZD +99

Spindle extension R version

Safety distances are already included in basic lengths! (Tr spindle: 10mm up to MSZ-100, 16mm from MSZ-150, for KGT see chapter 9.1, dimension L3)1) When using a larger diameter spindle also select the system components of the next bigger gearbox.(MSZ-10 with larger diameter spindle has spindle Tr30x6, system components of MSZ-25 - therefore also calculational spindle extension of gearbox size 25).2) The basic length of KGT spindles includes the length of the KGT nut and the safety distance according to ZIMM catalogue (see chapter 9.2, size L3).3) KGT nut with dynamic load rating 135kN and static load rating 322kN (80x20-4EP).4) KGT nut with dynamic load 161,5kN and static load rating 398kN (80x20-5EP).5) The value will be - depending on the algebraic sign - added or subtracted of the ZD (compression) dimension of the bellow - the result will then be added to the spindle lenght.6) KAR is the hinged bearing plateSpindle extension for spiral spring covering SF: As the extension of the spiral spring covering differs depending on the attachment, this variant has to be calculated graphically. If necessary we would be pleased to generate this drawing.

108 126 145 193 257 306 354 411 472 507

Page 22: dRETASD REFRIGERANT DAN PENYEMPURANAAAN DALAM KATIA

Selection, Calculation, Checklists4.

© by ZIMM Austria - 2004041

4.9 Order - Code MSZMillenniumSeriesZIMM

MSZMSZ

Size Housing - material Version Ratio Version of thread Spindle-Ø / Pitch Number ofgears, material Stroke List of systemcomponents

5102550100150250350500650750

GGrey cast iron GG25Heavy duty design(not specified = G)AAluminiumSSteel(MSZ 750)

SStanding versionRRotating version

NNormale.g. i = 4:1LLowe.g. i = 16:1

TRTrapezoidal spindle(not specified = Tr)--> chapters 5 and 6TR/SIFATr with safety nutSIFA--> chapter 8TR/ABTr, Anti-Backlash AB(only with S version)--> chapter 10KGTBall screws--> chapter 9

TR/SIFA-VUwithwear controlTR/SIFA-DUwith rotationcontrol

TR/SIFA-VU/DUwith rotaion +wear control

TR18042004...KGT16051610...

11-pitch(not specified= 1-pitch)2 *2-pitchIINOX (stainless)LH *left-threaded

HStrokeH + strokein mm

List ofsystem components(order does notmatter)--> chapter 14

*) available, butnot from stock.Delivery timeon request

Order expample: MSZ - 10 - G - SN - TR/SIFA - 2004 - 1 - H 300 - FB390 - VS - BFSize Material - h

ousing

Version S

or RRatio

N or L

Version o

f thread

Spindle d

iameter

Spindle p

itchNum

ber of gea

rsStrok

e

List of

system co

mponent

s(orde

r does not

matter)