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Transmissions

  • Specification Summary

  • Gross Input Power1715.0 bkW
  • Gross peak input torque9024.0 N·m
  • Rated input speed1900.0 RPM
  • Gear typeStraight spur planetary
  • Gears8F/0R
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-E80 transmissions include pressure pumping, kill mud pumps, coil tubing pump support, nitrogen units, and acidizing units. TH48-E80 transmissions are optimized for use with Cat 3512B, Cat 3512C, and Cummins QSK50 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-E80 oilfield transmission. Gross input power: 1715 bkW (2300 bhp).

Engine Specifications

Gross Input Power 1715.0 bkW
Gross peak input torque 9024.0 N·m
Rated input speed 1900.0 RPM
Gear type Straight spur planetary
Gears 8F/0R
1F gear ration 3.34
2F gear ration 2.45
3F gear ration 2.20
4F gear ration 1.81
5F gear ration 1.62
6F gear ration 1.36
7F gear ration 1.19
8F gear ration 1.00

Dimensions

Width 859.9 mm
Height 1177.0 mm
weight 2213.0 kg
Length 1984.4 mm

Cat Engines for Optimized Power Train

 Cat 3512B

 Cat 3512C

 Cummins QSK45

 Cummins QSK50

Cat 3512B

Cat 3512C

Cummins QSK45

Cummins QSK50

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 — TC58927-ESLF

 Stall torque ratio - 2.20

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

Oil System

 Cat Transmission/Drive Train Oil-4 (TDTO)

 Sump oil temperatures

 Hydraulic fill capacity — Approx. 152 L (40 gal), subject to cooler size, lines, and installation.

 Filter Type — 10 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

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