Piston Air Compressor/Vacuum Pump | Raptor Supplies Singapore

Piston Air Compressor/Vacuum Pump

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Piston air compressors / vacuum pumps provide compressed air as a source of energy or to transport natural gas. Raptor supplies offer a wide range of piston air compressor / vacuum pumps from brands... Read More

WELCH -

Piston Vacuum Pumps

StyleModelFull Load AmpsHpInlet SizeOutlet SizeOverall HeightOverall LengthOverall WidthPrice (inc. GST)
A2546B-011.71/41/4" Hose1/4" Hose9"10"7.5" SGD 2440.33
B2581B-502.21/33/16" Hose3/16" Hose10.5"17 5/16"10.5" SGD 6246.22
C2561B-502.21/33/16" Hose3/16" Hose12"17"7.5" SGD 5422.79
GAST -

Piston Air Compressors

StyleModelDesignFull Load AmpsHpInlet SizeItemMotor TypeOutlet SizeOverall HeightPrice (inc. GST)
A5HCD-10-M553----Piston Air Compressor--- SGD 3151.39
B5LCA-46T-M550GX----Piston Air Compressor--- SGD 5547.26
C2HAH-19C-M322A----Piston Air Compressor--- SGD 2568.23
D3HBB-19-M322A----Piston Air Compressor--- SGD 3015.94
A4HCC-10-M450X----Piston Air Compressor--- SGD 2319.55
E4LCB-21-M450X----Piston Air Compressor--- SGD 3150.70
F4LCB-46T-M450GX----Piston Air Compressor--- SGD 5363.49
G5HCD-10-M550NGX----Piston Air Compressor--- SGD 3150.62
E5LCA-22-M550NGX----Piston Air Compressor--- SGD 3268.59
H5LCA-46S-M550GX----Piston Air Compressor--- SGD 3469.46
I5LCA-10-M550NGX----Piston Air Compressor--- SGD 2528.90
H6LCF-46S-M616NEX----Piston Air Compressor--- SGD 3803.39
J3LBA-32-M300AX----Piston Air Compressor--- SGD 2801.07
E6LCF-13-M616NEX----Piston Air Compressor--- SGD 3822.93
K6HCA-10-M616NEX----Piston Air Compressor--- SGD 3362.29
L7LDE-16-M750X----Piston Air Compressor--- SGD 5971.67
M7HDD-10-M750X----Piston Air Compressor--- SGD 5055.24
N7LDE-11T-M750X----Piston Air Compressor--- SGD 8788.44
O8HDM-10-M853----Piston Air Compressor--- SGD 5582.78
M7HDD-10-M853----Piston Air Compressor--- SGD 5575.38
P1VAF-10-M100X----Piston Air Compressor--- SGD 1515.30
K5HCE-10-M551X----Piston Air Compressor--- SGD 3461.00
A3HBB-10-M300AX----Piston Air Compressor--- SGD 2164.72
D3HBB-19-M323A----Piston Air Compressor--- SGD 3185.70
C2HAH-10-M200X----Piston Air Compressor--- SGD 1785.77
GAST -

Rocking Pistons Oil-Less Pumps

StyleModelFull Load AmpsHpItemOverall LengthVoltagePrice (inc. GST)
A87R555-V101-N470X--Piston Air Compressor-- SGD 1891.10
B86R123-101-N170X--Piston Vacuum Pump-- SGD 1189.71
B86R142-P001B-N270X--Piston Vacuum Pump-- SGD 1389.25
C86R130-101-N270X--Compressor/Vacuum Pump-- SGD 1255.33
D87R647-PS101-N470X--Pump-- SGD 2154.35
E87R647-VS101-N470X--Vacuum Pump-- SGD 2155.88
F86R635-101-N470X--Vacuum Pump-- SGD 1524.67
G87R135-101-N270X2.6/1.41/4Rocking Piston Air Compressor7.75"100/120, 200/240 SGD 1136.03
H87R642-101R-N470X5.7/2.81/2Rocking Piston Air Compressor9.625"115/120, 230/240 SGD 1196.21
H87R645-101-N470X6.0/3.01/2Rocking Piston Air Compressor9.625"115/120, 230/240 SGD 1269.59
THOMAS PUMPS -

Articulated Piston Pumps/Compressors

StyleModelFinishFull Load AmpsHpMotor TypeOverall HeightOverall LengthOverall WidthRpmPrice (inc. GST)
A270025Gray28A1/3 hpPermanent Magnet8.63"12 5/8"5 5/8"1800 RPM SGD 2875.65
B270072Gray Painted4/8A1/3 hpCapacitor Start7"14 1/2"11.203"1725 RPM SGD 2483.27
B270073Gray Painted7.3/3.6A1/2 hpCapacitor Start7"15 1/2"11.609"1425 RPM SGD 3183.45
B270080Gray Painted10.6/5.3A3/4 hpCapacitor Start7"14"11.203"1725 RPM SGD 3641.97
C270047Gray Painted18.5A1/3 hpPermanent Magnet Dc5.812"12.562"5.812"1800 RPM SGD 1747.48
C270024Gray Painted26A1/4 hpPermanent Magnet Dc5.812"11.562"5.812"1800 RPM SGD 1682.27
THOMAS PUMPS -

WOB-L Piston Pumps/Compressors

StyleModelFull Load AmpsHpInlet SizeItemMotor TypeOutlet SizeOverall HeightOverall LengthPrice (inc. GST)
A617CA223.11/81/4" NPTPiston Air Compressor/Vacuum PumpShaded Pole, Thermally Protected with High Torque Start Winding1/4" NPT6 4/5"8" SGD 664.85
B2688VE443.21/31/4" NPTPiston Air Compressor/Vacuum PumpShaded Pole, Thermally Protected with High Torque Start Winding1/4" NPT7 1/10"9.625" SGD 1126.76
C688CE443.61/31/4" NPTPiston Air Compressor/Vacuum PumpShaded Pole, Thermally Protected with High Torque Start Winding1/4" NPT6 4/5"8" SGD 830.11
A617CA324.61/81/4" NPTPiston Air CompressorShaded Pole1/4" NPT9"13" SGD 745.66
D2688CE444.71/31/4" NPTPiston Air Compressor/Vacuum PumpShaded Pole, Thermally Protected with High Torque Start Winding1/4" NPT7 1/10"9.625" SGD 1211.68
E405ADC38/1210.51/101/8" NPTPiston Air CompressorPermanent Magnet1/8" NPT5 1/3"7.5" SGD 771.02
GAST -

Piston Air Compressor 2 Hp 110/220v

ModelItemPrice (inc. GST)
8LDF-46T-M850XAF8GCA SGD 12465.12
WELCH -

Tank Vacuum System 1/2 HP 10 Gallon Tank

ModelItemPrice (inc. GST)
8150B-30AH8QNN SGD 7355.49
GAST -

Piston Air Compressor, 2 HP, 1 Phase, 200 To 240V AC, 145 psi Max. Pressure, 12 scfm

ModelItemPrice (inc. GST)
120R689-P101-N800NXCJ3AFV SGD 5486.25

Piston Air Compressor/Vacuum Pump

Piston air compressors or vacuum pumps are designed to provide compressed air as an energy source or transmit natural gas. Raptor Supplies offers a wide range of these compressors from brands like Welch, Gast and Thomas Pumps. They utilise a crankshaft-driven cylinder & piston to compress the air at high pressures and deliver torque up to 2 HP. These compressors are available in electric, shaded pole, capacitor start, open, permanent magnet and PMDC motor variants for prolonged life, having an oil-less or a rocking piston vacuum pump design.

Working Mechanism

  • Piston air compressor / vacuum pumps operations are based on the reciprocating piston within a cylinder principle.
  • The piston is linked to a crankshaft powered by an electric motor.
  • When the motor starts, the crankshaft begins to rotate, causing the piston within the cylinder to move back and forth.
  • The piston compresses the air in the cylinder as it moves towards the cylinder head. After that, the compressed air is stored in a pressure tank or reservoir.
  • When the piston moves away from the cylinder head, a vacuum is created in the cylinder to draw in the ambient air.

Frequently Asked Questions

Does temperature affect a piston air compressor / vacuum pump?

  • For air compressors, high temperatures can lead to a decrease in the compressor's efficiency and an increase in the risk of overheating.
  • For vacuum pumps, the main concern is low temperature which can lead to condensation and icing in the pump, this can cause damage to the internal parts of the pump and reduce its performance.

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