SP - Single Point

Robust spring suspension for on- and off-highway trailer applications

The Single Point suspension is a versatile spring suspension system designed for on- and off-highway trailer use. This suspension suits various trailer types, including End Dump, Side Dump, Belly Dump, Logger, and Container Chassis. SP offers substantial load capacities ranging from 50,000 to 70,000 pounds, making it an ideal choice for heavy-duty trailer applications.

Features and Benefits

  • Straddle mount or trunnion mount

  • Custom trunnion lengths available

  • Available as suspension kit or as an assembly with axles

  • Custom axle tracks available

  • Applications: End Dump, Side Dump, Belly Dump,
    Logger, Container Chassis and more

  • Capacities of 50,000 - 70,000 lbs.

Specifications

Available Models:

Trunnion Mount or Straddle Mount
Overslung or Underslung

Spring Capacities:

50,000# - 5 leaf
50,000# - 3 leaf (Parabolic)
60,000# - 9 leaf
70,000# - 10 leaf


Optional Mounting Pedestal Heights:

9 inch
10 inch
12 inch
Optional Trunnion Lengths Available.

Custom applications available on straddle mounts,
3/8”T-1 thru 1” A36 steel.

Severe Duty Straddle Plate Assemblies available for
60,000 lbs., 70,000 lbs.

Trunnion Casting: Covers up to 3 Leaves

Common Trailer Applications:

Lowboy
Logging
Drop Deck
Flatbed
Dump (Frame Type or Frameless)

Need help? Call 1-972.838.1266 or Contact Us
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Watson & Chalin Mfg, Inc.
725 E. University Dr
McKinney, TX 75069
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