Standard ‘Round’ Actuator Assemblies

Built for use on Commercial and Agricultural Trailers with round cam-style brake axles, these complete actuator assemblies are ready to bolt on for fast, no-hassle installation. Designed for durability in tough commercial and field environments, they provide smooth brake performance and an integrated parking brake feature.

Our Standard range of Round Axles Brake kits:

Order Ref No. Part Description Rod Dia Body Dia (mm) Body Length Stroke (mm) Closed / Open Ctrs Thrust @100 Bar
BK20RN 20MM ROUND AXLE BRAKE KIT 20mm 38.10 149 75 190 / 265 3142 N
BK25RN 25MM ROUND AXLE BRAKE KIT 25mm 41.28 149 75 190 / 265 4909 N
BK30RN 30MM ROUND AXLE BRAKE KIT 30mm 50.00 171 76 197 / 273 7070 N
BK35RN 35MM ROUND AXLE BRAKE KIT 35mm 53.98 171 76 197 / 273 9622 N

Key Features:

  • Fits Round Cam Axles
    Compatible with standard round cam shafts typically found on commercial and agricultural trailer axles, ideal for use on tankers, flatbeds, grain trailers, and other heavy-duty agri or road gear.
  • Complete Pre-Assembled Unit
    Supplied fully assembled with all required components — ready for quick installation with minimal setup. Just weld on, connect the mechanical linkage, and you’re back in the field or on the road.
  • Sliding Cylinder for Parking Brake
    The actuator’s brake cylinder is designed to slide forward, engaging a mechanical parking brake when disengaged. Perfect for securing equipment during transport or when disconnected from the tow vehicle.
  • Durable Return Spring System
    Heavy return springs ensure reliable brake release and prevent dragging, reducing wear and downtime.
  • Universal Mounting Plate
    Features a standard weld-on flange to fit most axle brackets found on commercial and agri trailers. Streamlines replacement and retrofit installs.

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