Pressure Plates

ACT Pressure Plate Key Features

• ACT pressure plates are available in a variety of designs, including all factory push, pull, crimp and rivet designs.
• ACT pressure plates feature a special, single-diaphragm design to dramatically increase clamp load without the adverse effects of double-diaphragm type clutches.
• Effective diaphragm designs are used to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure an exclusive four-stage, heat-treating process for unparalleled performance.
• All castings are CNC-machined for greater consistency and precision.
• Cover stampings are sometimes reinforced by ACT to reduce flex and improve the efficiency and feel of the pressure plate.

• Stronger drive straps and rivets are used when needed to strengthen the pressure plate and prevent breakage.
• All ACT pressure plates are dynamically computer balanced for smooth operation at high RPM.
• A load test for every pressure plate is performed on a special computerized testing press for quality assurance. This same machine also assists in designing new products and evaluating parts that are in for service.
• Proper release travel, clamp load, pedal effort and working range are analyzed using specialized testing equipment and software.
• Most ACT pressure plates are certified as meeting SFI Specification 1.1 and are legal for competition in all racing organizations where SFI certification is required.