HPTO® – Dry Clutch

HPTO Dry Disc Pack Clutches engage by “bumping” the clutch, much like an over-center lever actuated clutch, but without a lever. This engagement sequence involves a series of pulses to bring the driven load up to synchronous speed with the engine. Then once the driven load is synchronized with the engine speed, the disc pack locks up at full torque to provide 100% of the engine’s horsepower to the driven load. The HPTO can start equipment with significant inertia or even under partially jammed conditions. Because the disc pack is dry, it is best used in applications where power density requirements are low, and equipment is less abusive. Contact PT Tech for your specific application needs.

Key Features

  • Hydraulically applied friction clutches designed for diesel engines with dry and wet disc pack configurations ranging from 80hp to 1600hp, with option for live pump drives.

  • Our patented electronic controls monitor and adjust to real-time operating conditions, preventing machine damage while minimizing downtime.

  • Compatible with both direct and transverse drive systems.

Benefits

  • Self adjusting for wear

  • “Push-button” start-up

  • No pilot bearing

  • Can be remotely controlled

  • Monitors and reports system status

  • Computer controls reduce the effects of operator abuse

  • Internal rotary union allows for inline applications

  • Designed to absorb shock loads

HPTO Gen3 Series Dry Clutches

HPTO30

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Technical Specs

Engine Power 80-200 hp [60-149 kW]
Max Engine Torque 600 lb-ft [814 Nm]
Engine Housing Size SAE (J617c) #3  
Engine Flywheel Size SAE (J620) 11.5  

HPTO32

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Technical Specs

Engine Power 140-460 hp [104-343 kW]
Max Engine Torque 1,825 lb-ft [2,475 Nm]
Engine Housing Sizes SAE (J617c) #3, #2, or #1
Engine Flywheel Sizes SAE (J620) 11.5, or 14

HPTO34

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Technical Specs

Engine Power 380-800 hp [283-596 kW]
Max Engine Torque 2,800 lb-ft [3,796 Nm]
Engine Housing Sizes SAE (J617c) #1, or #0
Engine Flywheel Sizes SAE (J620) 14, or 18

HPTO36

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Technical Specs

Engine Power 540-1,200 hp [403-895 kW]
Max Engine Torque 4,500 lb-ft [6,101 Nm]
Engine Housing Size SAE (J617c) #0
Engine Flywheel Size SAE (J620) 18

HPTO Integral

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HPTO Gen1 & Gen2 Series Dry Clutches

HPTO8

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Technical Specs

Engine Power 80-140 hp [59-104 kW]
Max Engine Torque 520 lb-ft [705 Nm]
Engine Housing Size SAE (J617c) #3  
Engine Flywheel Size SAE (J620) 11.5  

HPTO10

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Technical Specs

Engine Power 140-250 hp [103-184 kW]
Max Engine Torque 1,023 lb-ft [1,387 Nm]
Engine Housing Size SAE (J617c) #3  
Engine Flywheel Size SAE (J620) 11.5  

HPTO12

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Technical Specs

Engine Power 250-460 hp [186-343 kW]
Max Engine Torque 1,765 lb-ft [2,393 Nm]
Engine Housing Size SAE (J617c) #2, or #1  
Engine Flywheel Size SAE (J620) 11.5, or 14  

HPTO12H

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Technical Specs

Engine Power 460-600 hp [343-447 kW]
Max Engine Torque 2,225 lb-ft [3,016 Nm]
Engine Housing Size SAE (J617c) #1  
Engine Flywheel Size SAE (J620) 14  

HPTO318

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Technical Specs

Engine Power 460-1,050 hp [343-783 kW]
Max Engine Torque 3,600 lb-ft [4,880 Nm]
Engine Housing Size SAE (J617c) #0  
Engine Flywheel Size SAE (J620) 18