TH55-E70 OILFIELD 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.TH55-E70 transmissions are ideal for pressure pumping applications. TH55-E70 transmissions are optimized for use with Cat 3512C (HD), Cat 3516C (HD), Cummins QSK 50, Cummins, QSK 60, MTU 12V4000. and MTU 16V4000 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 TH55-E70 oilfield transmission. Gross input power: 2461 bkW (3300 bhp).
SPECIFICATIONS
Gross Input Power2461.0 bkW
Gross peak input torque12677.0 N·m
Rated input speed1900.0 RPM
engine specifications
Gross Input Power2461.0 bkW
Gross peak input torque12677.0 N·m
Rated input speed1900.0 RPM
Gears7F/0R
1F gear ration6.25
2F gear ration4.59
3F gear ration3.38
4F gear ration2.48
5F gear ration1.83
6F gear ration1.36
7F gear ration1.00
TH55-E70 STANDARD EQUIPMENT
- cat engines for optimized power train
Cat C3512C (HD)
Cat 3516C (HD)
Cummins QSK50
Cummins QSK60
MTU 12V4000
MTU 16V4000 - transmission rotation
Input rotation — counterclockwise
Output rotation — counterclockwise(as viewed from rear) - torque converter
Integral torque converter
Series — TC64442-ESLF
Stall torque ratio — 2.23 - 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. 189 L (50 gal), subject to cooler size, lines, and installation.
Filter Type — 6 micron synthetic, cartridge remote mount - mountings
Input connection (flywheel) — SAE #0
Output connections (flange)
Structural application subject to Caterpillar approval - control system
Electronic Control Unit (ECU)
Electronic data link, SAE J1939
Electrical system 24V - power takeoff drives
Location
Mounting type
Rated power