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ESP A51 Mk IIB

Electric Swellex®pump ESP A51 Mk IIB isa fast and quiet, high pressure water pump. Ithas an electrically driven axial 5-plunger pumpfor up to 300 bar installation pressure. The mainadvantage is that the flow delivered by thepump, is independent of the water pressure,and is thus speeding up the bolt expansionprocess. The expansion time for a 6.0 m longSuper Swellex rockbolt is less than 60 seconds.The pump is equipped with an electric mainswitch, which features an LED display, and apressure sensor on the incoming water side.The outlet pressure can be adjusted to matcheither Swellex bolt type.

SpecificationsMaximum outlet pressure 300 barElectric motor type I 230 V � /400 V Y, 3-phase, 50 Hz, 4.0 kWElectric motor type II 330 V � /575 V Y, 3-phase, 60 Hz, 4.8 kWElectric motor type III 200-220 V � /346-380 V Y, 50/60 Hz, 4.0/4.8 kWElectric motor type IV 440 V Y, 3-phase, 60 Hz, 4.8 kWElectric motor type V 575 V �� 3-phase, 60 Hz, 4.8 kWElectric motor type VI 480 V �� 3-phase, 60 Hz, 4.8 kWConnections electric mounted male plug, female power plug is includedConnections water claw coupling (1/2")Supply water pressure 2-8 barMax. supply water temperature 70º CFlow rate 9 Lpm, 11 Lpm for 60 HzWeight, pump unit 70 kgDimensions (depth x width x height) 450 x 700 x 450 mmNoise level at operator's ear, 4 m away below 60 dB(A)Vibrations in the installation arm Not measurable

Electric high pressure pump for Swellex®rockbolts

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ESP A51 MkIIBOrdering numbers: Pumps

3218 2000 00 ESP A51 MkIIB, 230/400 V 50 Hz3218 2001 00 ESP A51 MkIIB, 330/575 V 60 Hz3218 2002 00 ESP A51 MkIIB, 200-220/346-380 V 50-60 Hz3218 2004 00 ESP A51 MkIIB, 440 V 60 Hz3218 2005 00 ESP A51 MkIIB, 575 V 60 Hz, CSA3218 2006 00 ESP A51 MkIIB, 480 V 60 Hz, CSA

Ordering numbers: Installation arms

8613 2430 18 Installation arm - Standard Swellex, incl. manometer8613 2430 19 Installation arm - Super and Midi Swellex, incl. manometer

Swellex pumps are also available in pneumatically and hydraulically driven versions.

Comparison ofperformance betweendifferentSwellex pumps.

PSP 300ESP A51 Mk IIBHSP A51 Mk IB

120

140

100

80

60

40

20

0Ex

pa

nsio

n t

ime

(s)

Bolt length (m)

3 4 6

Midi Swellex

PSP 300ESP A51 Mk IIBHSP A51 Mk IB

120

100

80

60

40

20

0

Exp

an

sio

n t

ime (

s)

Bolt length (m)

3 4 6

Super Swellex

PSP 300ESP A51 Mk IIBHSP A51 Mk IB

60

80

50

403020100E

xp

an

sio

n t

ime (

s)

Bolt length (m)

1.5 2.4 4

Standard Swellex

70