HPTO^® – Wet Clutch

HPTO Wet Disc Pack Clutches engage by “smoothly ramping” the clutch, much like using a viscous oil shear coupling to soft-start the driven load. 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. Due to the continuous oil flow in the disk pack, it works best in applications where power density requirements are high, and equipment is extremely abusive. Contact PT Tech for 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
Multiple configurations available

HPTO Pump Tower Housing Options for Wet Clutches

VG Pump Tower – 2 Pump Pads

Technical Specs

Max Pump Tower Output Torque (VG)	525 lb-ft	[712 Nm]
Max HP @ 2250 RPM (VG)	225 hp	[165 kW]
Available Ratios	1:1, or 1:1.27

SOFX Pump Tower – 4 Pump Pads

(Standard Output Torque)

Technical Specs

Max Pump Tower Output Torque (FX)	1,000 lb-ft	[1,356 Nm]
Max HP @ 2250 RPM (FX)	430 hp	[316 kW]
Available Ratios	1:1, 1:1.17, or 1:1.27

HOFX Pump Tower – 4 Pump Pads

(High Output Torque)

Technical Specs

Max Pump Tower Output Torque (HOFX)	1,630 lb-ft	[2,210 Nm]
Max HP @ 2250 RPM (HOFX)	700 hp	[522 kW]
Available Ratios	1:1, 1:1.17, or 1:1.27

HPTO Gen3 Series Wet Clutches

HPTO31

More Info

Technical Specs

Engine Power	80-350 hp	[60-261 kW]
Max Engine Torque	1,150 lb-ft	[1,559 Nm]
Engine Housing Sizes	SAE (J617c) #3, #2, or #1
Engine Flywheel Sizes	SAE (J620) 11.5, or 14

HPTO33

More Info

Technical Specs

Engine Power	320-800 hp	[239-597 kW]
Max Engine Torque (Transverse Belt Drive	2,500 lb-ft	[3,390 Nm]
Max Engine Torque (Direct Drive)	3,250 lb-ft	[4,406 Nm]
Engine Housing Sizes	SAE (J617c) #3, #2, #1, or #0
Engine Flywheel Sizes	SAE (J620) 11.5, 14, or 18

HPTO35

More Info

Technical Specs

Engine Power	320-920 hp	[239-686 kW]
Max Engine Torque	3,250 lb-ft	[4,406 Nm]
Engine Housing Sizes	SAE (J617c) #1, or #0
Engine Flywheel Sizes	SAE (J620) 14, or 18

HPTO37

More Info

Technical Specs

Engine Power	800-1,200 hp	[596-894 kW]
Max Engine Torque	4,550 lb-ft	[6,169 Nm]
Engine Housing Sizes	SAE (J617c) #1, or #0
Engine Flywheel Sizes	SAE (J620) 14, or 18

HPTO Gen2 Series Wet Clutches

HPTO13

More Info

Technical Specs

Engine Power	250-475 hp	[186-354 kW]
Max Engine Torque	1,650 lb-ft	[2,237 Nm]
Engine Housing Sizes	SAE (J617c) #1, or #0
Engine Flywheel Sizes	SAE (J620) 14, or 18

HPTO14

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Technical Specs

Engine Power	400-650 lb-ft	[298-484 kW]
Max Engine Torque	2,750 lb-ft	[3,729 Nm]
Engine Housing Sizes	SAE (J617c) #1, or #0
Engine Flywheel Sizes	SAE (J620) 14, or 18

HPTO15

More Info

Technical Specs

Engine Power	765-1,050 hp	[562-772 kW]
Max Engine Torque	3,550 lb-ft	[4,813 Nm]
Engine Housing Sizes	SAE (J617c) #1, or #0
Engine Flywheel Sizes	SAE (J620) 14, or 18