Terminal Tractor
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This page explains how Fifth Wheel Coupling is classified within Motor Vehicle Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A specialized coupling mechanism that connects a terminal tractor to semi-trailers, allowing articulation and load transfer.
Technical details and manufacturing context for Fifth Wheel Coupling
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Load Capacity | 20–50 t | Maximum vertical load on the fifth wheelISO 1726 |
| Coupling Height | 1100–1300 mm | Adjustable to match trailer kingpin height |
| Kingpin Diameter | 50.8 mm | Standard 2-inch kingpinISO 337 |
| Operating Temperature Range | -40–85 °C | Outside this range, material properties degrade |
| Material Grade | S355J2+N | High-strength structural steel for main plateEN 10025 |
| Surface Treatment | Zinc-nickel plating 8–12 μm | Corrosion resistance for outdoor useASTM B841 |
| Weight | 150–250 kg | Depends on configuration and options |
| Locking Mechanism Type | Automatic | Manual release available as option |
| Mounting Type | Bolted | Direct mount to tractor frame |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
| pressure: | N/A (mechanical load bearing) |
| other spec: | Max vertical load: 40,000 kg, Max articulation angle: ±15° |
| temperature: | -40°C to +80°C |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
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1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
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The rated load capacity is 20–50 tonnes, as per ISO 1726. This is a reference range; the exact capacity for a specific model must be confirmed with the manufacturer.
The standard kingpin diameter is 50.8 mm (2 inches), as per ISO 337. This is a common standard for semi-trailers.
The operating temperature range is -40 to 85°C. Outside this range, material properties may degrade, so it is important to verify suitability for extreme environments.
The surface treatment is zinc-nickel plating with a thickness of 8–12 μm, as per ASTM B841. This provides corrosion resistance for outdoor use.
This component is essential for the following industrial systems and equipment:
Commonly used trade names and technical identifiers for Fifth Wheel Coupling.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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