®
Cat
Transmissions
Rodney Harms
Agenda
 Petroleum Product Offering
 Well Servicing Application
–
–
–
–
Product offerings
Features
Integrated drop box
Life/Caterpillar value
 Fracturing Application
– Product offerings
– Features
– Life/Caterpillar value
Mechanical Transmission & T/C Product Line
Reversing
Family
Hauling
Family
Drawbar
Family
Reversing
Shuttle
Family
Torque
Converter
Family
Platform
Platform
Platform
Platform
Platform
TR 13
TR 16
TR 28
TR 35
TR 43
TR 55
TH 28
TH 31
TH 35
TH 38
TH 43
TH 48
TH 53/55
TH 70
TA 19
TA 22
TA 31
TR 13
TC 33
TC 35
TC 36
TC 38
TC 40
TC 45
TC 46
TC 56
TC 58
TC 64
TC 76
Petroleum Products based directly on
successful truck transmissions
Petroleum Transmissions Product Line
Well Service
Model: TH31-E61
Compatible Engine Model:
C9 ACERT®
Horsepower: 275 – 350 bhp
Available with Integral Drop Box
Model: TH35-E81
Compatible Engine Models:
C11 ACERT, C13 ACERT,
C15 ACERT
Horsepower: 325 – 550 bhp
Available with Integral Drop Box
Model: CX31-P600
Compatible Engine Model:
C9 ACERT, C11 ACERT, C13
ACERT, C15 ACERT, C18 ACERT
Horsepower: 275 – 600 bhp
Available with Integral Drop Box
Model: CX35-P800
Compatible Engine Models:
C15 ACERT, C18 ACERT,
ACERT
Horsepower: 440-800 bhp
C27
FRAC
Model: TH48-E70
Compatible Engine
Models: C27 ACERT
& C32 ACERT
Horsepower:
950 - 1500 bhp
Model: TH48-E80
Compatible Engine
Model: 3512 (B,C)
Horsepower:
2250 bhp
Model: TH55-E70
Compatible Engine
Model: 3512C
Horsepower: 2500 bhp
Cat® Transmission Sales Model Naming
 TH48-E80
– T = TBU Transmission
– H = Hauling Transmission (load carried a “long” distance; e.g. OHT)
• A = Ag transmission (agricultural, direct drive)
• R = Reversing transmission (forward/reverse cycle; WL or TTT)
– 48 = Major Clutch Diameter, in Centimeters
– E = Engine Mounted
• M = mid-mounted (engine connected via shaft)
• X = axle mounted
– 8 = # of Forward Gears
– 0 = # of Reverse Gears
Cat Sales Model Nomenclature
35 = Major Clutch Diameter,
in Centimeters
CX35-P800
CX = Cat®
Transmission
P = Petroleum
800 = 800 hp Rating
Agenda
 Petroleum Product Offering
 Well Servicing Application
–
–
–
–
Product offerings
Features
Integrated drop box
Life/Caterpillar value
 Fracturing Application
– Product offerings
– Features
– Life/Caterpillar value
Well Servicing Transmissions
Model
Applications
Engine
TH31-E61
Pumping
Workover
C9 ACERT® (275-375 hp ratings)
TH35-E81
Pumping
Workover
Drilling
C11 ACERT (325-450 hp ratings)
C13 ACERT (385-520 hp ratings)
C15 ACERT (440-540 hp ratings)
CX31P600
Pumping
Workover
Drilling
C9 ACERT (275-375 hp ratings)
C11 ACERT (325-450 hp ratings)
C13 ACERT (385-520 hp ratings)
C15 ACERT (440-595 hp ratings)
C18 ACERT (575-600 hp ratings)
CX35P800
Pumping
Drawworks
Drilling
C15 ACERT (440-595 hp ratings)
C18 ACERT (575-800 hp ratings)
C27 ACERT (800 hp rating)
Mobile Workover Rig
Mud Pump
CX35-P800 Features and Benefits
 Lightweight Design (1,390 lbs)
– Lightest 800 hp well service
transmission on the market
– 800 lbs and 38% lighter than Allison
6610
 State-of-the-Art Controls
– >30 additional tailored well service
features
 Cat Integrated Power Train
– Custom solutions offers engine,
transmission, and radiator packaging
– Compatible with Cat engine-mounted
oil coolers
– One stop for parts and service
 Integral Options Offer
Unsurpassed Application
Flexibility
– Integral pump drive option
– Rear PTO option
– Cradle mounts not required on basic
configuration
 5.73 First Gear Ratio
CX31-P600 Features and Benefits
 Lightweight Design (1,026 lbs)
– 10% lighter than Allison 4700
– Highest power-to-weight ratio in the
market
 State-of-the-Art Controls
– >30 additional tailored well service
features
 Cat Integrated Power Train
– Custom solutions offers engine,
transmission, and radiator packaging
– Compatible with Cat engine-mounted
oil coolers
– One stop for parts and service
 Integral Options Offer
Unsurpassed Application
Flexibility
–
–
–
–
–
Drop box (2WD or 4WD) option
Integral pump drive option
Retarder option
Rear PTO option
Cradle mounts not required on basic
configuration
CX31-P600 and CX35-P800
Integral Option Configurations
Integral
Drop Box
CX31-P600
CX31 Drop Box
CX35-P800
o = optional
x = standard
CX35 with Integral
Pump Drives
x
Integral
Pump Drive
o
x
o
Rear PTO
Retarder
o
o
o
o
Integral pump drives not available with basic pump drives.
CX31 with Integral
Pump Drives
CX31 with Integral Drop Box
and Pump Drives
CX31 and CX35 Integral Option Configurations
Flexibility for Your Application
CX35-P800 Standard
Configuration
CX31-P600 Standard
Configuration
CX35-P800 with
Integral Pump Drives
CX31-P600 with
Integral Pump Drives
CX31-P600 with
Integral Drop Box
CX31-P600 and CX35-P800 PTO Ratings
Front: 2 SAE B Pads
CX35-P800 PTOs
Maximum Rated
Torque
Rear PTO 1360 N•m (1000 lb-ft)
Single Side PTO 950 N•m (700 lb-ft)
Single Integral Drive
678 N•m (500 lb-ft)
PTO
Combined Integral
933 N•m (688 lb-ft)
Drive PTOs¹
Multiple PTOs¹ ² 1630 N•m (1200 lb-ft)
Rated Power at
2100 rpm
Rear: 2 SAE C Pads
298 kW (400 hp)
209 kW (280 hp)
149 kW (200 hp)
205 kW (275 hp)
358 kW (480 hp)
¹ Each PTO shall not exceed the single PTO maximum torque.
² Multiple PTOs include two side PTOs with or without the rear
PTO, or combined integral drive PTOs with rear PTO.
Rear
PTO
Integrated Drop Box Transmission
 Optimized 24" center to
center allows a better
driveshaft angle vs.
Cotta 20" resulting in
extended life of the
driveshaft
24 in
611 mm
43 in
1092 mm
All-wheel-drive option shown
Cat Drop Box Advantages vs. Cotta
 Durability
– Pressure lubed drop box for extended life vs.
Cotta drop box
 Integrated Package
– Filters and SAE 30 wt. oil that meets Cat
TO-4 specs
 Control System
– In-cab controls improve safety and convenience as well as prevent
incomplete shifts
 One Dealer Technician can Service the Whole Power System
– Engine/transmission/drop box
 Length (~20" Shorter)
– Weight reduction
– Cost reduction/less steel
Cotta Drop Box
Cat Drop Box
4x4 and 2x4 Available
Well Service Controls
 CX transmissions feature cutting edge electronic controls that were
tailored specifically for the well service market. Features include:
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Multiple modes of operation
Vehicle speed limit
Output shaft speed and torque limit
Programmable min/max gear
Configurable mode per drop box output location
Configurable LUC engagement speed in pump/
workover mode
Configurable start gear
Lock to neutral
Starter interlock
Parking break neutralize
Engine/service brake control integration
J1939 and PWM shifter support
Diagnostic features
Indicator lights
Backup alarm relay
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Output lock (brake)
Cold mode protection
Warm-up mode
LUC disable
PTO output controller
Quick to gear select
Hold current gear
Variable hydraulic retarder control
Dual shifter input
Upshift protection
Reverse enable in workover mode
Drop box controls
Abusive/directional shift protection
Electrical default operation
Anti-lock brake capability and integration
New feature for CX product offering
Cat Petroleum Transmissions:
Long Life – Better Value
Sales Model
CX31-P600
CX35-P800
TH31-E61
TH31-E61 with
Integral Drop Box
TH35-E81
TH35-E81 with
Integral Drop Box
Power Rating
600 hp
800 hp
350 hp
Weight lbs
(kg)
1026 (465)
1390 (630)
1855 (841)
Average Hours
to Overhaul
7,500-12,000
7,500-12,000
7,500-12,000
350 hp
2755 (1250)
7,500-12,000
550 hp
2145 (973)
7,500-12,000
550 hp
2975 (1350)
7,500-12,000
 500-Hour Oil and Filter Service Life
 Allison recommends replacing gears and bearings in the 6610 starting at
5,000 hours of use, while the CX35-P800 is designed for 10,000 hours of use.
* The life estimates given are typical. Actual life will vary depending on the application.
Operation at lower than ratings indicated will result in greater expected life.
Agenda
 Petroleum Product Offering
 Well Servicing Application
–
–
–
–
Product offerings
Features
Integrated drop box
Life/Caterpillar value
 Fracturing Application
– Product offerings
– Features
– Life/Caterpillar value
Cat Fracturing Transmissions
Model: TH48-E70
Compatible Engine
Model: C32 ACERT
Horsepower:
1200 – 1500 bhp
Model: TH55-E70
Compatible Engine
Model: 3512C
Horsepower:
2150 – 2500 bhp
Model: TH48-E80
Compatible Engine
Model: 3512 (B,C)
Horsepower:
2000 – 2250 bhp
TH48-E70 Transmission Overview
 Deep 1st Gear Ratio at 6.16:1
– Bring unit “online” against pressure
 Even Gear Splits
– Cover entire range of flow rate
 Seven Useable Gears
– No overdrive
 Advanced Electro-hydraulic Clutch
Pressure Controls (ECPC)
 500-Hour Oil and Filter Service Life
Gear
1st
2nd
3rd
4th
5th
6th
7th
Ratio
6.16
4.52
3.33
2.47
1.82
1.36
1
TH48-E80 Transmission Overview
 Eight Useable Gears
– Superior match to pump providing more
hydraulic power into the well
 Superior Life with Lower Rebuild Cost
– Reusable gears at rebuild
 Can Utilize Seven Percent Torque Rise
Engine to Deliver More Power to the
Pump with Less Trailers
 Robust Individually Actuated Hydraulic
Clutch Controls (ICM)
 500-Hour Oil and Filter Service Life
Gear
1st
2nd
3rd
4th
5th
6th
7th
8th
Ratio
3.34
2.45
2.2
1.8
1.61
1.36
1.19
1
Fracturing Transmission Value
Sales Model
HP Rating
Weight
lbs (kg)
Average Hours
to Overhaul
TH48-E70
1500
3750 (1694)
7,500-12,000
TH48-E80
2250
4468 (2028)
3,750-6,000
Allison 9800
2250
3880 (1760)
??
Notes:
 In FRAC application in Graham, TX the TH48-E80 lasted more than three
times longer than the Allison 9800. (Caterpillar over 3000 hours)
 The life estimates given are typical. Actual life will vary depending on the
application.
 All estimates assume the transmission is in an application associated
with the hp rating indicated. Greater life is expected in applications where
the transmission is used below the rated horsepower.
TH55-E70 Transmission Overview
 Deep 1st gear ratio at 6.25:1
– Bring unit “online” against pressure
 Even gear splits
– Cover entire range of flow rate
 Seven useable gears
– No overdrive
 Transmission-mounted filters for ease of
incorporation into equipment
 Outstanding performance that delivers
more power to the well with less trailers
 Advanced Electro-hydraulic Clutch
Pressure Controls (ECPC)
 500-hour oil and filter service life
Gear
1st
2nd
3rd
4th
5th
6th
7th
Ratio
6.25
4.59
3.38
2.48
1.83
1.36
1
Fracturing Transmission Value
Sales Model
HP Rating
Weight
lbs (kg)
Average Hours
to Overhaul
TH55-E70
2500
6430 (2920)
11,250-18,000
Twin Disc
3000
6620 (3000)
??
Notes:
 The life estimates given are typical. Actual life will vary
depending on the application.
 All estimates assume the transmission is in an application
associated with the hp rating indicated. Greater life is expected
in applications where the transmission is used below the rated
horsepower.
Torsional Coupler
 Allison and Twin Disc
both caution against
driveline vibrations and
recommend torsional
vibration analysis be
performed
Cited from BULLETIN TA91-8501
Cited from OHAM9
Caterpillar Integral Torsional Coupler
 No External Damper Required
 Reduce Damaging Driveline
Vibrations
 No Limit on Operation Range
Due to Vibration
FRAC Controls
 FRAC transmissions feature cutting-edge electronic controls that
were tailored specifically for the FRAC market. Features include:
–
–
–
–
–
–
–
–
–
–
–
J1939 and switch to ground shifter support
Programmable min/max gear
Starter interlock
Diagnostic features
Indicator lights
Output lock (brake)
Cold mode protection
Warm-up mode
LUC disable
Upshift protection
Abusive/directional shift protection
Information contained in this publication may be considered confidential.
Discretion is recommended when distributing.
Materials and specifications are subject to change without notice.
CAT, CATERPILLAR, their respective logos, ACERT, “Caterpillar Yellow” and the “Power Edge” trade dress, as well as corporate
and product identity used herein, are trademarks of Caterpillar and may not be used without permission.
LESW0026-00 (11/09)
2009 Caterpillar
All rights reserved.