TH55-E70 Oilfield Transmission

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).

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Gross Input Power3300BHP

Gross Peak Input Torque9350ft-lb

Rated Input Speed1900r/min

Gears7F/0R

1F Gear Ratio6.25

2F Gear Ratio4.59

3F Gear Ratio3.38

4F Gear Ratio2.48

5F Gear Ratio1.83

6F Gear Ratio1.36

7F Gear Ratio1.00

Standard

Cat C3512C (HD)

Cat 3516C (HD)

Cummins QSK50

Cummins QSK60

MTU 12V4000

MTU 16V4000

Standard

Input rotation — counterclockwise

Output rotation — counterclockwise(as viewed from rear)

Standard

Integral torque converter

Series — TC64442-ESLF

Stall torque ratio — 2.23

Standard

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

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

Standard

2 oil cooler lines

1 electrical connector

1 pump

Standard

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

Standard

Input connection (flywheel) — SAE #0

Output connections (flange)

Structural application subject to Caterpillar approval

Standard

Electronic Control Unit (ECU)

Electronic data link, SAE J1939

Electrical system 24V

Standard

Location

Mounting type

Rated power

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