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PT TECH

Manufacturer of Industrial Clutches and Brakes.


Torque Limiters

PT Tech is known as the world's leading expert in Torque Limiters. Since 1978, PT Tech has led the charge in torque limiting research, testing, and products for extreme machines in: tunnel boring, mining, recycling, off-highway, steel, and the wind industry.

Enclosed Wet Brake

PT Tech's oil-cooled hydraulic (wet) brake is a perfect example of how our engineers developed a custom solution for the mining industry. In response to customer need, we designed this single brake that performs two distinct functions: a spring-set PARKING BRAKE and a master cylinder operated DYNAMIC SERVICE BRAKE for underground mining vehicles.

HPTO Diesel Engine Clutches

PT Tech manufactures two HPTO families commonly called DRY and WET clutches. HPTO DRY clutches have their disc packs operate in a dry (oil free) environment, whereas the HPTO WET clutches have their disc pack operate in a wet (oil soaked) environment. WET clutches are common with hydraulic pump drives because the oil soaked environment provides the lubrication needed for the pump drive gearing. Typically, there are two issues that drive the selection process towards either DRY or WET clutches: Power requirements and the need for hydraulic pumping capability.

Caliper Disc Brakes for Steel Mills

PT Tech’s CDB (Caliper Disc Brakes) meet the AIST brake standard published in 1997. They directly replace existing drum brakes. They have the same mounting hole pattern and the centerline of the disc matches the centerline of the drum so no modifications to the mounting holes are required. They can operate in series with DC motors or in DC shunt circuits. Discs are not susceptible to checking due to thermal shock. They also eliminate drift and drag problems. Their friction pucks are lightweight and replacement only takes five minutes. Most importantly, they were designed with maintenance people in mind. Adjusting for wear takes 15 seconds. CDB brakes are used on hoists and trolleys.

Gearbox/Brake Combination

PT Tech manufactures the most requested replacement brake/gearbox combination for Scoops and Shield Haulers in the mining industry.

Overrunning Clutch Couplings

The SGS Series of Overrunning Clutches by PT Tech are designed to run maintenance free for five years - giving you one of the longest warranties offered on clutches. Complete with a unique sealing arrangement, additional "V" ring face seal and grease in a long annular space, an oil reservoir, and centrifugal throwout sprags, the SGS Series is designed to run your application smoothly. The SGS is easy to install with its flange mount and automatically engages/disengages for user friendliness. The SGS does not require boring or keying and costs considerably less than other units. The choice is easy - choose SGS from PT Tech!