The slope of an on/off ramp for a truck scale is critical to ensure safety, accuracy of weighing, and ease of access for trucks.
Comfortable (Recommended) Slope:
5% or less (about 1:20)
This is ideal for most trucks, providing a smooth transition onto the scale and minimizing potential accuracy issues due to uneven load distribution.
Maximum Slope (Absolute Limit):
10% (1:10) is considered the upper limit in many guidelines, but this is typically only used in space-constrained areas and not ideal for loaded trucks.
Some scale manufacturers or standards bodies may recommend not exceeding 6% to 8%, especially for weigh-in-motion or high-precision static scales.
Key Considerations:
Longer ramps with gentler slopes are safer and easier on truck suspensions.
Slopes should be consistent and free of dips or bumps to avoid inaccuracies.
The transition between the ramp and the scale deck should be smooth to prevent impact loading or weight shifts.
