Specifications subject to change without prior notice in the interest of continual product improvement.

Contact your local Twin Disc representative for engineering specifications.

TA90-7500 SeriesTwin Disc Automatic Transmission Systems

1st 2nd 3rd 4th 5th 6th 7th 8th 9th Coverage

RATIOS 2.95 2.55 2.17 1.82 1.57 1.33 1.16 1.00 0.85 3.47

STEP 1.16 1.18 1.19 1.16 1.18 1.15 1.16 1.18

TA90-7500 SerieSUp to 1939 kw (2600 hp)

The 7500 Series transmission system consists of a 9-speed coaxial power-shift transmission and an advanced electronic control system.

Features and BeneFits

• Lightweight yet durabLe aLuminum housings reduce overaLL vehicLe weight

• does not require a torque converter, further contributing to overaLL weight savings

• compact in size and abLe to fit between a mobiLe equipment’s frame raiLs

• overaLL Length of 1546 mm (61 in) provides narrow footprint

• smaLLer gear ratio steps provide deLivery of higher average power

• Less compLicated pLumbing makes it easier to fit into the cramped quarters of a frac rig

• offers two Live 149 kw ptos

• incLudes a torsionaL coupLing

• automatic eLectronic oiL LeveL system avaiLabLe

• in most cases, standard engine oiL may be used, simpLifying servicing requirements

• designed to match engine Life

• made in america, the ta90-7500 transmission features the same reLiabiLity and robust

design on which twin disc buiLt its reputation

TA90-7500

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-TA90-7500

© 2009, Twin Disc, IncorporatedPrinted in the USA - 04/2009United States of America • Australia • Belgium • France • Italy • Singapore • Switzerland • Canada

For nearly a century, we’ve been putting horsepower to work by designing, engineering and manufacturing rugged-duty industrial products. Our products and our reputation are bolted to the most renowned engine manufacturers and equipment OEMs in the world. Our mission is to make your machines and vehicles more productive, more durable, more operator-friendly, more cost-effective. From design and installation consultation through after-sale support, Twin Disc and its distributors are committed to your business. No one knows more about managing horsepower in more ways than Twin Disc.

transmissions • cLutches • ptos

pump drives • torque converters

gearboxes • hydrauLic pto products

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

SpecificationSTA90-7500 9 forward speeds, no reverseMaximum gross input power 1939 kW (2600 hp) at 1900 rpmMaximum gross input torque 10460 Nm (7715 lb-ft)Maximum input speed 1900 rpmDry weight – estimated, without PTO 2041 kg (4500 lbs)Center of gravity location, horizontally from engine flywheel housing on input-output centerline 720 mm (28 in)Available live PTO drives 0, 1, or 2 Power each: 149 kW (200 hp)PTO designation, per SAE J744 127-2, 22-4 (SAE B 2-bolt) 127-4, 22-4 (SAE B 4-bolt) 152-4, 32-4 (SAE C 4-bolt) 165-4, 44-4 (SAE D 4-bolt)PTO ratios (@ engine speed, rpm) 1.087 (2066 rpm) 1.579 (3000 rpm)Oil volume 83 liters (22 USG)Oil flow 400 LPM (106 GPM)Mounting SAE 00 dry flywheel housingOutput flange T200

Important Notice: Torsional Vibration Disregarding system torsional compatibility could cause damage to components in the drive-train resulting in loss of mobility. At minimum, system incompatibility could result in gear clatter at low speeds.

The responsibility for ensuring that the torsional compatibility of the system is satisfactory rests with the assembler of the drive and driven equipment.

Torsional vibration analysis can be made by the engine builder, marine survey societies, independent consultants and others. Twin Disc is prepared to assist in finding solutions to potential torsional problems that relate to the transmission.

8.35

CENT

ER O

FGR

AVITY

7.52CENTER OF

GRAVITY

685.8

342.9

521.1

1084.03

E

E

374.0

0

720.46CENTER OF GRAVITY

787.0

76.00

75.00150.00711.11

1546.2

1494

.1

Dimensions are in millimeters

TA90-7601Twin Disc Automatic Transmission Systems

TA90-7601UP TO 1939 KW (2600 HP)

1st 2nd 3rd 4th 5th 6th 7th 8th 9th Overall

Ratios 4.45 3.84 3.26 2.74 2.36 2.01 1.75 1.51 1.28 3.47

Steps 1.16 1.18 1.19 1.16 1.18 1.15 1.16 1.18 N/A N/A

Specifications subject to change without prior notice in the interest of continual product improvement.Contact your local Twin Disc representative for engineering specifications. Patent pending.

Scan QR code to see Twin Disc‘s entire Power Transmission product line.

The 7601 Series transmission system consists of a 9 speed coaxial power-shift transmission and the advanced TDEC-500 electronic control system.

TDEC-500 ELECTRONIC CONTROL SYSTEM

FEATURES & BENEFITS:• Designed to match the engine life on pressure pumping rigs for oil and gas well stimulation. The robust, simplicity of the counter shaft design provides for an expected L10 life of 10,000 hours.

• Designed specifically for the pressure pumping market, the transmission does not require throttle dipping for any of the range to range shifts. It is designed to be power shifted under all loaded or unloaded situations.

• Lightweight yet durable aluminum housings to reduce overall vehicle weight.

• Automated line test/hydraulic pressure test for pressure pumping applications.

• Does not require a torque converter, further contributing to overall weight savings.

• Compact in size and able to fit between the frame rails of mobile equipment.

• Small and evenly spaced gear ratio steps ensure that well pressure does not drop during gear shifts.

• Simple plumbing to ease installation in the cramped quarters of a pressure pumping rig.

• In most cases uses the same oil as the engine, simplifying onsite fluids logistics and servicing requirements.

• Includes a highly flexible coupling to reduce the damaging effects of the torsional excitations by the engine and piston pump.

• Internal brake capability to hold the output shaft when not pumping.

• Oil fill port and sight glass are co-located, making oil fills a one person operation.

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-TA90-7601

© 2016, Twin Disc, IncorporatedPrinted in the USA - 4/2016United States of America • Australia • Belgium • Canada • China • India • Italy • Singapore • Switzerland

For nearly a century, we’ve been putting horsepower to work by designing, engineering and manufacturing rugged-duty industrial products. Our products and our reputation are bolted to the most renowned engine manufacturers and equipment OEMs in the world. Our mission is to make your machines and vehicles more productive, more durable, more operator-friendly, more cost-effective. From design and installation consultation through after-sale support, Twin Disc and its distributors are committed to your business. No one knows more about managing horsepower in more ways than Twin Disc.

TRANSMISSIONS • CLUTCHES • PTOS PUMP DRIVES • TORQUE CONVERTERSGEARBOXES • HYDRAULIC PTO PRODUCTS

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

TA90-7601 AUTOMATIC TRANSMISSION SYSTEM

TA90-7601 9 forward speeds, no reverseMaximum gross input power 1939 kW (2600 hp) at 1900 RPMMaximum gross input torque 7617 Nm (5618 lb-ft) in 1st 8826 Nm (6510 lb-ft) in 2nd 10396 Nm (7668 lb-ft) in 3rd 10460 Nm (7715 lb-ft) all other rangesMaximum gross output torque 33895 Nm (25000 lb-ft) Maximum input speed 1900 RPMDry Weight - estimated, without PTO 2637 kg (5814 lbs)Available live PTO drives 0, 1 or 2 Power Each 149 kW (200 hp)PTO designation, per SAE J744 127-2, 22-4 (SAE B 2-bolt) 127-4, 22-4 (SAE B 4-bolt) 152-4, 32-4 (SAE C 4-bolt) 165-4, 44-4 (SAE D 4-bolt)PTO sizes (@ engine speed, rpm) 1.087 (2066 rpm) 1.579 (3000 rpm)Oil volume 83 liters (22 USG)Oil flow 409 LPM (108 GPM)Mounting SAE #0 or SAE #00 dry flywheel housing

SPECIFICATIONS

Important Notice: Torsional VibrationDisregarding system torsional compatibility could cause damage to components in the drive train resulting in loss of mobility. At minimum, system incompatibility could result in gear clatter at low speeds.

The responsibility for ensuring that the torsional compatibility of the system is satisfactory rests with the assembler of the drive and driven equipment.

Torsional vibration analysis can be made by the engine builder, marine survey societies, independent consultants and others. Twin Disc is prepared to assist in finding solutions to potential torsional problems that relate to the transmission.

TA90-7601C SeriesTwin Disc Automatic Transmission Systems

TA90 -7601CUP TO 2237 KW (3000 HP)

1st 2nd 3rd 4th 5th 6th 7th 8th 9th Overall

Ratios 4.45 3.84 3.26 2.74 2.36 2.01 1.75 1.51 1.28 3.47

Steps 1.16 1.18 1.19 1.16 1.18 1.15 1.16 1.18 N/A N/A

The TA90-7601C Series transmission system consists of a 9-speed coaxial power- shift transmission and the advanced TDEC-500 electronic control system.

TDEC-500 ELECTRONIC CONTROL SYSTEM

FEATURES & BENEFITS:• Designed to match the engine life on pressure-pumping rigs for oil and gas well stimulation. The robust simplicity of the counter shaft design

provides for an expected L10 life of 10,000 hours.*

•Designedspecificallyforthepressure-pumpingmarket,thetransmissiondoes not require throttle dipping for any of the range-to-range shifts. It is designed to be power shifted under all loaded or unloaded situations.

• Lightweight yet durable aluminum housings to reduce overall vehicle weight.

• Automated line test/hydraulic pressure test for pressure-pumping applications.

• Does not require a torque converter, further contributing to overall weight savings.

•Compactinsizeandabletofitbetweentheframerailsofmobileequipment.

• Small, evenly spaced gear ratio steps ensure that well pressure does not drop during gear shifts.

• Simple plumbing to ease installation in the cramped quarters of a pressure- pumping rig.

•Inmostcasesusesthesameoilastheengine,simplifyingonsitefluidslogistics and servicing requirements.

•Includesahighlyflexiblecouplingtoreducethedamagingeffectsofthe torsional excitations by the engine and piston pump.

•Internalbrakecapabilitytoholdtheoutputshaftwhennotpumping.

•Oilfillportandsightglassareco-located,makingoilfillsaone-personoperation.

*The life estimate given is typical. Actual life will vary depending on the applications duty cycle.

Specificationssubjecttochangewithoutpriornoticeintheinterestofcontinualproductimprovement.ContactyourlocalTwinDiscrepresentativeforengineeringspecifications.Patentpending.

TA90-7601C

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions.

TD-Bulletin-TA90-7601C © 2018, Twin Disc, Incorporated

Printed in the USA - 6/2018United States of America • Australia • Belgium • Canada • China • India • Italy • Singapore • Switzerland

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

TA90-7601C AUTOMATIC TRANSMISSION SYSTEMS

SPECIFICATIONS TA90-7601C 9 forward speeds, no reverseMaximum gross input power 2237 kW (3000 hp) at 1900 RPMMaximum gross input torque 12890 Nm (9513 lb-ft*)Maximum gross output torque 33895 Nm (25000 lb-ft) Maximum input speed 1900 RPMDry Weight - estimated, without PTO 2472 kg (5450 lbs)Available live PTO drives 0, 1 or 2 Power Each 149 kW (200 hp)Available PTO ratios, per SAE J744 127-2, 22-4 (SAE B 2-bolt) 127-4, 22-4 (SAE B 4-bolt) 152-4, 32-4 (SAE C 4-bolt) 165-4, 44-4 (SAE D 4-bolt)Available PTO ratios 1.087:1 step-up 1.579:1 step-upOil volume 83 liters (22 USG)Oil flow 409 LPM (108 GPM)Mounting SAE #0 or SAE #00 dry flywheel housingHighly flexible input coupling SAE 460 & SAE 530

* Maximumpermissiblegrossinputtorquemayvarydependingonengagedrangeandoperatingprofile.TwinDiscapplicationapproval is required.

Important Notice: Torsional Vibration

Disregarding system torsional compatibility could cause damage to components in the drive train resulting in loss of mobility. At minimum, system incompatibility could result in gear clatter at low speeds.

The responsibility for ensuring that the torsional compatibility of the system is satisfactory rests with the assembler of the drive and driven equipment.

Torsional vibration analysis can be made by the engine builder, marine survey societies, independent consultants and others. Twin Disc is prepared to assist in finding solutions to potential torsional problems that relate to the transmission.

For more than a century, we’ve been putting horsepower to work by designing, engineering and manufacturing rugged-duty industrial products. Our products and our reputation are bolted to the most renowned engine manufacturers and equipment OEMs in the world. Our mission is to make your machines and vehicles more productive, more durable, more operator-friendly, more cost-effective. From design and installation consultation through after-sale support, Twin Disc and its distributors are committed to your business. No one knows more about managing horsepower in more ways than Twin Disc.

TRANSMISSIONS • CLUTCHES • PTOS PUMP DRIVES • TORQUE CONVERTERSGEARBOXES • HYDRAULIC PTO PRODUCTS

TA90-8501Twin Disc Automatic Transmission Systems

TA90-8501UP TO 3000 HP (2300 KW)

RATIOS1st 2nd 3rd 4th 5th 6th 7th 8th 9th Overall

4.47 3.57 2.85 2.41 1.92 1.54 1.25 1.00 0.80 5.60

Specifications subject to change without prior notice in the interest of continual product improvement.Contact your local Twin Disc representative for engineering specifications. Patent pending.

Scan QR code to see Twin Disc‘s entire Power Transmission product line.

The 8501 Series transmission system consists of an engine-mounted 21 or 23 inch type 8 torque converter, a 9 speed coaxial power-shift transmission and the advanced TDEC-500 electronic control system.

TDEC-500 ELECTRONIC CONTROL SYSTEM

FEATURES & BENEFITS:• Increased Performance: Efficient gear train combined with electronic controls tailored to the needs of the specific application to optimize machine performance.

• Ease of Operation: Available automatic shifting or manual power shift combined with shift inhibits and interlocks simplify the operator’s job and allows for concentration on the job rather than the powertrain.

• Reduced Downtime: Durable heavy-duty components, combined with electronic controls which prevent overspeed, shift shocks and reduce the effects of operator error, result in increased machine availability and less wear and tear on other machine components.

• Safety: The control system looks after the transmission so the operator can focus on the operation of the machine. Speeds and interlocks can be programmed to meet the needs of the specific machine.

APPLICATIONS• Oil field fracturing rigs

• Anchor hoists

• Large cranes

• Special purpose equipment

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-TA90-8501

© 2016, Twin Disc, IncorporatedPrinted in the USA - 3/2016United States of America • Australia • Belgium • Canada • China • India • Italy • Singapore • Switzerland

For nearly a century, we’ve been putting horsepower to work by designing, engineering and manufacturing rugged-duty industrial products. Our products and our reputation are bolted to the most renowned engine manufacturers and equipment OEMs in the world. Our mission is to make your machines and vehicles more productive, more durable, more operator-friendly, more cost-effective. From design and installation consultation through after-sale support, Twin Disc and its distributors are committed to your business. No one knows more about managing horsepower in more ways than Twin Disc.

TRANSMISSIONS • CLUTCHES • PTOS PUMP DRIVES • TORQUE CONVERTERSGEARBOXES • HYDRAULIC PTO PRODUCTS

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

TA90-8501 AUTOMATIC TRANSMISSION SYSTEM

TA90-8501 9 forward speeds, no reverseMaximum gross input power 3000 hp (2300 kW) at 2100 RPMMaximum gross input torque 5592 lb-ft (7581 Nm) in 1st 7000 lb-ft (9490 Nm) in 2nd 7500 lb-ft (10,170) Nm all other rangesMaximum gross output torque 25,000 lb-ft (33,900 Nm)Maximum input speed 2100 RPMWeight, dry 5020 lbs. (2288 kg)Cooling pump capacity 100 GPM @1900 RPMMaximum oil temperature at converter outlet 250° F (121°C)Sump capacity 35 USG (132 liters)Remote mounted using “trunion” style mounts

Cooling required 20 to 30% of GHP depending upon application

SPECIFICATIONS

Important Notice: Torsional VibrationDisregarding system torsional compatibility could cause damage to components in the drive train resulting in loss of mobility. At minimum, system incompatibility could result in gear clatter at low speeds.

The responsibility for ensuring that the torsional compatibility of the system is satisfactory rests with the assembler of the drive and driven equipment.

Torsional vibration analysis can be made by the engine builder, marine survey societies, independent consultants and others. Twin Disc is prepared to assist in finding solutions to potential torsional problems that relate to the transmission.

146.5(5.77)

1287.7(50.70)

715.0(28.15)

95.3(3.76)

641.6(25.27)

411.5(16.21)

510.0(20.09)

863.1(33.99)

743.7(29.29)

136.7(5.39)

1230.4(48.45)

654.1(25.76)

411.5(16.21)

510.0(20.09)

863.1(33.99)

743.7(29.29)

641.6(25.27)

95.3(3.76)

TA90-8703Twin Disc Automatic Transmission Systems

TA90-8703UP TO 3300 HP (2460 KW)

RATIOS1st 2nd 3rd 4th 5th 6th 7th 8th 9th Overall

4.47 3.57 2.85 2.41 1.92 1.54 1.25 1.00 0.80 5.60

Specifications subject to change without prior notice in the interest of continual product improvement.Contact your local Twin Disc representative for engineering specifications. Patent pending.

Scan QR code to see Twin Disc‘s entire Power Transmission product line.

The 8703 Series transmission system consists of an engine-mounted 21 or 23 inch type 8 torque converter, a 9 speed coaxial power-shift transmission and the advanced TDEC-500 electronic control system.

TDEC-500 ELECTRONIC CONTROL SYSTEM

FEATURES & BENEFITS:• Increased Performance: Efficient gear train combined with electronic controls tailored to the needs of the specific application to optimize machine performance.

• Ease of Operation: Available automatic shifting or manual power shift combined with shift inhibits and interlocks simplify the operator’s job and allows for concentration on the job rather than the powertrain.

• Reduced Downtime: Durable heavy-duty components, combined with electronic controls which prevent overspeed, shift shocks and reduce the effects of operator error, result in increased machine availability and less wear and tear on other machine components.

• Safety: The control system looks after the transmission so the operator can focus on the operation of the machine. Speeds and interlocks can be programmed to meet the needs of the specific machine.

APPLICATIONS• Oil field fracturing rigs

• Anchor hoists

• Large cranes

• Special purpose equipment

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-TA90-8703

© 2016, Twin Disc, IncorporatedPrinted in the USA - 3/2016United States of America • Australia • Belgium • Canada • China • India • Italy • Singapore • Switzerland

For nearly a century, we’ve been putting horsepower to work by designing, engineering and manufacturing rugged-duty industrial products. Our products and our reputation are bolted to the most renowned engine manufacturers and equipment OEMs in the world. Our mission is to make your machines and vehicles more productive, more durable, more operator-friendly, more cost-effective. From design and installation consultation through after-sale support, Twin Disc and its distributors are committed to your business. No one knows more about managing horsepower in more ways than Twin Disc.

TRANSMISSIONS • CLUTCHES • PTOS PUMP DRIVES • TORQUE CONVERTERSGEARBOXES • HYDRAULIC PTO PRODUCTS

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

TA90-8703 AUTOMATIC TRANSMISSION SYSTEM

TA90-8703 9 forward speeds, no reverseMaximum gross input power 3300 hp (2460 kW) at 1900 RPMMaximum gross input torque 6711 lb-ft (9098 Nm) in 1st 8401 lb-ft (11,390 Nm) in 2nd 9121 lb-ft (12,366) Nm all other rangesMaximum gross output torque 30,000 lb-ft (40,675 Nm)Maximum input speed 1900 RPM*Weight, dry 5380 lbs. (2440 kg)Cooling pump capacity 100 GPM (379 I/min) @1900 RPMMaximum oil temperature at converter outlet 250° F (121°C)Sump capacity 35 USG (132 liters)Remote mounted using “trunion” style mounts

Cooling required 20 to 30% of GHP depending upon application*Consult Twin Disc if a maximum input speed over 1900 RPM is required.

SPECIFICATIONS

Important Notice: Torsional VibrationDisregarding system torsional compatibility could cause damage to components in the drive train resulting in loss of mobility. At minimum, system incompatibility could result in gear clatter at low speeds.

The responsibility for ensuring that the torsional compatibility of the system is satisfactory rests with the assembler of the drive and driven equipment.

Torsional vibration analysis can be made by the engine builder, marine survey societies, independent consultants and others. Twin Disc is prepared to assist in finding solutions to potential torsional problems that relate to the transmission.

146.5(5.77)

1287.7(50.70)

715.0(28.15)

95.3(3.76)

641.6(25.27)

411.5(16.21)

510.0(20.09)

863.1(33.99)

743.7(29.29)