Transmissions

  • Specification Summary

  • Gross Peak Input Torque 5995 N·m
  • Rated Input Speed 2100 r/min
  • Maximum Turbine Torque 5489 N·m
  • Gear Type Straight spur planetary
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product-TH48-E70
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 TH48-E70 transmissions include pressure pumping, kill mud pumps, coil tubing pump support, nitrogen units, and acidizing units. TH48-E70 transmissions are optimized for use with Cat C27 ACERT and C32 ACERT, as well as Cummins QST30 engines.Cat transmissions are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty.Cat TH48-E70 oilfield transmission. Gross input power: 1118 bkW (1500 bhp).

Transmission Specifications

Gross Peak Input Torque 5995 N·m
Rated Input Speed 2100 r/min
Maximum Turbine Torque 5489 N·m
Gear Type Straight spur planetary
Gears 7F/0R
1F Gear Ratio 6.16
2F Gear Ratio 4.52
3F Gear Ratio 3.33
4F Gear Ratio 2.47
5F Gear Ratio 1.82
6F Gear Ratio 1.36
7F Gear Ratio 1.00

Dimensions

Width 866 mm
Height 1092 mm
Weight 1692 kg
Length 1681 mm

Cat Engines for Optimized Power Train

 Cat C27 ACERT

 Cat C32 ACERT

 Cummins QST30 (950-1500 bhp ratings)

Cat C27 ACERT

Cat C32 ACERT

Cummins QST30 (950-1500 bhp ratings)

Transmission Rotation

 Input rotation — counterclockwise

 Output rotation — counterclockwise(as viewed from rear)

Input rotation — counterclockwise

Output rotation — counterclockwise(as viewed from rear)

Torque Converter

 Integral torque converter

 Series

 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

 1 pump

2 oil cooler lines

1 electrical connector

1 pump

Oil System

 Cat Transmission/Drive Train Oil-4 (TDTO)

 Sump oil temperatures

 Hydraulic fill capacity — Approx. 114 L (30 gal), subject to cooler size, lines, and installation.

 Filter Type — 6 micron synthetic, cartridge remote mount

Cat Transmission/Drive Train Oil-4 (TDTO)

Sump oil temperatures

Hydraulic fill capacity — Approx. 114 L (30 gal), subject to cooler size, lines, and installation.

Filter Type — 6 micron synthetic, cartridge remote mount

Mountings

 Input connection (flywheel) — SAE #0

 Output connections (yoke) — GWB 390.60/GWB 390.65

 Structural application subject to Caterpillar approval

Control System

 Electronic Control Unit (ECU)

 Electronic data link, SAE J1939

 Electrical system 24V

Power Take-Off Drives

 Location

 Mounting type: SAE 8 bolt (J704)

 Rated power