Transmissions

  • Specification Summary

  • Gross Input Power 447 bkW
  • Gross Peak Input Torque 2746 N·m
  • Rated Input Speed 2100 r/min
  • Maximum Turbine Torque 3525 N·m
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product-CX31-P600
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 447 bkW
Gross Peak Input Torque 2746 N·m
Rated Input Speed 2100 r/min
Maximum Turbine Torque 3525 N·m
Maximum Input Speed 2500 r/min
Retarder Rating 399 kW
Retarder Rating Speed 2400 r/min
Electrical System 12 V
Gear Type Planetary Spur
Gears 6F/1R
1F Gear Ratio 4.40
2F Gear Ratio 2.33
3F Gear Ratio 1.53
4F Gear Ratio 1.00
5F Gear Ratio 0.72
6F Gear Ratio 0.61
1R Gear Ratio -3.97
Overall Gear Ration 7/21

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

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

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

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

Location

8 bolt mounting type

Rated torque

Rotation: same as engine

Ratio, 1:1

Oil system

 Remote mount oil filter

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

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