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CX31-P600 Well Service Transmission

CX31-P600 Well Service Transmission

Your operation depends on the power driving it. And your transmission is as crucial to your power solution as the engine. Cat transmissions are proven in the oil and gas industry and widely known for their exceptional power, leading durability, ease of operation, and shifting options.Ideal applications for Cat CX31-P600 transmissions include workover rigs, kill mud pumps, coil tubing pump support, nitrogen units, acidizing units, and cementing units. CX31-P600 transmissions are optimized for use with C9 ACERT, C11 ACERT, C13 ACERT, C15 ACERT, and C18 ACERT engines (A and B ratings).Cat CX31-P600 oilfield transmission. Gross input power: 447 bkW (600bhp). Configurations available include integral pump drives, integral drop box, and side power take-off.

Transmission Specifications

Gross Input Power


Gross Peak Input Torque


Rated Input Speed


Maximum Turbine Torque


Minimum Input Speed


Retarder Rating


Retarder Rating Speed


Electrical System


Gear Type

Planetary Spur



1F Gear Ratio


2F Gear Ratio


3F Gear Ratio


4F Gear Ratio


5F Gear Ratio


6F Gear Ratio


1R Gear Ratio


Overall Gear Ration


Standard Equipment:

  • Cat Engines For Optimized Power Train
    • C9 ACERT, C11 ACERT, C13 ACERT, C15 ACERT, C18 ACERT (A and B ratings)
  • Transmission Rotation
    • Input rotation — counterclockwiseOutput rotation — counterclockwise(as viewed from rear)
  • Torque Converter
    • Lock-up clutch, torque converter drive in all gears integral to transmission
    • Stall torque ratio
  • Clutches
    • Clutches — electro-hydraulic fully modulated, oil cooled, multidisc
    • Clutch modulation control — Cat Electronic Clutch Pressure Control (ECPC)
  • Installation Connections
    • 2 oil cooler lines
    • 1 electrical connector
  • Oil System
    • Cat Transmission/Drive Train Oil-4 (TDTO) sump oil temperatures
    • Maximum converter outlet oil temperature — 250°F (121°C)
    • Hydraulic fill capacity — 6.5 gal (25 L) subject to cooler size, lines, and installation — initial fill may be greater
    • Direct mount filter
  • Mountings
    • Input (flywheel) — SAE #1 dry flywheel housing
    • Side supports — two SAE #2 pads
    • Output — 1710 yoke, 1810 yoke, 1810 companion flange, ISO 8667-T180 flange
  • Power Take-off Drives
    • Location
    • 8 bolt mounting type
    • Rated torque
    • Rotation: same as engine
    • Ratio, 1:1

Optional Equipment:

  • Oil System
    • Remote mount oil filter
  • Mountings
    • Remote mount ECU
    • Remote mount filter option
  • Integral Power Take-off
    • Location: 1 o'clock and 11 o'clock as viewed from rear
    • Mounting type
    • Rated torque
    • Rotation: same as engine
    • Ratio - 1.09:1
  • Rear Power Take-off
    • Location: 5 o'clock as viewed from rear
    • Mounting type: 8 bolt
    • Rated torque: 1000 lb-ft (1360 Nm)
    • Rotation: Opposite of engine
    • Ratio - 1.25:1

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