Transmissions

  • Specification Summary

  • Gross Input Power 597 bkW
  • Gross Peak Input Torque 2700 N·m
  • Rated Input Speed 2100 r/min
  • Maximum Turbine Torque 2700 N·m
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product-CX35-P800
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 CX35-P800 transmissions include workover rigs, hydraulic fracturing, kill mud pumps, coil tubing pump support, nitrogen units, acidizing units, and cementing units. CX35-P800 transmissions are optimized for use with C15 ACERT, C18 ACERT, and C27 ACERT engines (A ratings).Cat CX35-P800 oilfield transmission. Gross input power: 597 bkW (800 bhp). Configurations available include basic and integral pump drives.

Transmission Specifications

Gross Input Power 597 bkW
Gross Peak Input Torque 2700 N·m
Rated Input Speed 2100 r/min
Maximum Turbine Torque 2700 N·m
Minimum Input Speed 600 r/min
Electrical System 12 V
Gear Type Planetary Spur
Gears 8F/1R
1F Gear Ratio 5.73
2F Gear Ratio 3.57
3F Gear Ratio 2.72
4F Gear Ratio 1.95
5F Gear Ratio 1.43
6F Gear Ratio 1.00
7F Gear Ratio 0.74
8F Gear Ratio 0.63
1R Gear Ratio -4.46
Overall Gear Ration 9.10

Cat Engines for Optimized Power Train

 C15 ACERT, C18 ACERT, and C27 ACERT (A ratings).

Transmission Rotation

 Input rotation — counterclockwise

 Output rotation — counterclockwise(as viewed from rear)

Torque Converter

 Lock-up clutch, torque converter drive in all gears integral to transmission

 Stall torque ratio - 1.962

Lock-up clutch, torque converter drive in all gears integral to transmission

Stall torque ratio - 1.962

Clutches

 Clutches — electro-hydraulic fully modulated, oil cooled, multidisc

 Clutch modulation control — Cat Electronic Clutch Pressure Control (ECPC)

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 — 9 gal (34 L), 16 gal 61L) initial fill

 Direct mount filter

Cat Transmission/Drive Train Oil-4 (TDTO)

Sump oil temperatures

Maximum converter outlet oil temperature — 250°F (121°C)

Hydraulic fill capacity — 9 gal (34 L), 16 gal 61L) initial fill

Direct mount filter

Mountings

 Input (flywheel) — SAE #1 dry flywheel housing

 Side supports — two SAE #2 pads

 Output — 1810 yoke, 1810 companion flange, SPL 250 yoke, ISO 8667-T180 flange

Power Take-Off Drives

 Location

 Mounting type: 10 bolt

 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

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 - 1:1

Rear Power Take-Off

 Location: 5 o’clock as viewed from rear

 Mounting type: 8 bolt (SAE pump adapters and drive flanges available from third party suppliers.

 Rated torque: 1000 lb-ft (1360 Nm)

 Rotation: Opposite of engine

 Ratio - 1.25:1