This document introduces how to choose the fifth wheel suitable for your application
This document serves as an application guide for Fontaine Fifth Wheel products, specifically focusing on the No-Slack technology. It assists users in selecting the appropriate fifth wheel assembly by detailing top plate styles (6000, 7000, 7000CC, and H7 series) and various mounting options such as stationary and air slide mounts. The guide emphasizes the importance of matching the fifth wheel to specific application requirements, including load capacity and service conditions.
| Maximum Vertical Load (6000 Series) | 50,000 pounds |
|---|---|
| Maximum Drawbar Pull (6000 Series) | 150,000 pounds |
| Maximum Vertical Load (7000 Series) | 55,000 pounds |
| Maximum Vertical Load (H7 Series on AWB mounts) | 62,500 lbs |
| Maximum Vertical Load (H7 Series on PS5 mounts) | 70,000 lbs |
| Standard Duty GCW Limit | Less than 95,000 lbs |
| Moderate Duty GCW Limit | Less than 115,000 lbs |
| Heavy Duty GCW Limit | Less than 140,000 lbs |
| Severe Duty GCW Limit | More than 115,000 lbs |
A minimum static load applied to the fifth wheel through the trailer is 10% of the gross trailer weight.
A sliding mount is recommended when the owner needs to transfer weight between axles, handle trailers with different kingpin settings, or vary vehicle combination lengths.
All logging, mining, and oil field applications are considered severe duty and require Severe Duty assemblies.