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Well Service Pumps

  • Specification Summary

  • Maximum Input 1864 bkW
  • Maximum RPM 330 r/min
  • Number of Plungers 5 plg
  • Stroke - Length 203.2 mm
  • View Pricing Download Brochure
product-WS255 Quintuplex Well Servicing Pumps
When your job needs a stimulation pump, we’re ready. Our full line of well stimulation pumps are designed and manufactured by Caterpillar, in Caterpillar factories for single-source package confidence. WS255 well stimulation pumps are ideal for well stimulation applications using Cat 3512C (HD) engines and TH55 transmissions. Cat well stimulation pumps are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. Cat WS255 Well Stimulation Pump. Maximum power input: 1864 bkW (2500 bhp) @ 330 rpm.

Pump Specifications

Maximum Input 1864 bkW
Maximum RPM 330 r/min
Number of Plungers 5 plg
Stroke - Length 203.2 mm
Pump Weight 7257 kg
Gear Ratio 6.353:1
Rod Load 107955 kg

Fluid Ends

 Dimensionally compatible with industry standard 8" and 10" stroke power ends

 Valve-over-valve design simplifies valve, seat, and plunger installation

 Full line of 1502 discharge flanges - male, female, and blank

 Suction manifold options - Zoomie and log-style, and our innovative low-profile option

 Grooved and grooveless valve stop designs available, grooveless design eliminates stress risers present with a grooved valve stop design

 Plunger line - colmonoy 6 coating with a minimum hardness of 56 RC

 Standard and premium plunger packing available

 Polypak seals for more reliable sealing at suction cover and discharge flanges

 Fluid end components designed to maximize interchangeability across our fluid end line and with industry standard fluid ends

Dimensionally compatible with industry standard 8" and 10" stroke power ends

Valve-over-valve design simplifies valve, seat, and plunger installation

Full line of 1502 discharge flanges - male, female, and blank

Suction manifold options - Zoomie and log-style, and our innovative low-profile option

Grooved and grooveless valve stop designs available, grooveless design eliminates stress risers present with a grooved valve stop design

Plunger line - colmonoy 6 coating with a minimum hardness of 56 RC

Standard and premium plunger packing available

Polypak seals for more reliable sealing at suction cover and discharge flanges

Fluid end components designed to maximize interchangeability across our fluid end line and with industry standard fluid ends

Power Ends

 Industry standard footprint - fully interchangeable with competitors’ pumps

 Reverse helical pinion and bull gear design - great reliability

 Fully welded structure with additional internal supports

 Two-piece stay rod design - pretensioned stay rod lowers cyclic loading and fatigue stress

 Nose plate-to-frame design includes a dovetail interlocking design, which increases the structural strength

 Forged or fabricated bull gears - no cast material

 Forged crankshaft - one piece