| After-sales Service: | Yes |
|---|---|
| Warranty: | 1year |
| Size: | 3.5inch |
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The function of king pin is to engage the semi-trailer to the fifth wheel. The king pin is the most critical component used in the load tranfer from semi-trailer.
The coupling consists of a kingpin, a 2-or-3+1⁄2-inch-diameter (50.8 or 88.9 mm) vertical steel pin protruding from the bottom of the front of the semi-trailer, and a horseshoe-shaped coupling device called a fifth wheel on the rear of the towing vehicle. As the connected truck turns, the downward-facing surface of the semi-trailer (with the kingpin at the center) rotates against the upward-facing surface of the fixed fifth wheel, which does not rotate.
Kingpin adaptor to couple a 2" kingpin on a 3½" fifth wheel
• Ideal for shunting of different semi-trailer tractors
• The D-value of the 2" kingpin remains unchanged
• Important:
The adaptor is suitable for temporary use on private sites only, e.g. on non public park grounds or for short tow runs.
2 inch/50# welded type king pin:
| Item No. | King Pin Size | D-Value | Skid Plate Thickness | Fifth Wheel Size |
| (mm) | (kn) | A(mm) | (mm) | |
| KPW50-01 | 50 | 162 | 8 | 50 ( 2" ) |
| KPW50-02 | 50 | 162 | 10 | 50 ( 2" ) |
| KPW50-03 | 50 | 162 | 12 | 50 ( 2" ) |
3.5 inch/90# welded type king pin:
| Item No. | King Pin Size | D-Value | Skid Plate Thickness | Fifth Wheel Size |
| (mm) | (kn) | A(mm) | (mm) | |
| KPW90-01 | 90 | 240 | 10 | 90 ( 3.5" ) |
| KPW90-02 | 90 | 240 | 12 | 90 ( 3.5" ) |
2 inch/50# bolted type king pin:
| Item No. | King Pin Size | D-Value | Skid Plate Thickness | Fifth Wheel Size |
| (mm) | (kn) | A(mm) | (mm) | |
| KPB50-01 | 50 | 240 | 8 | 50 ( 2" ) |
| KPB50-02 | 50 | 240 | 10 | 50 ( 2" ) |
| KPB50-03 | 50 | 240 | 12 | 50 ( 2" ) |
3.5 inch/90# bolted type king pin:
| Item No. | King Pin Size | D-Value | Skid Plate Thickness | Fifth Wheel Size |
| (mm) | (kn) | A(mm) | (mm) | |
| KPB90-01 | 90 | 240 | 10 | 90 ( 3.5" ) |
| KPB90-02 | 90 | 240 | 12 | 90 ( 3.5" ) |
| Semi-trailers: | |||
| Skeletal semi-trailers | flatbed semi-trailers | container semi-trailers | low bed semi-trailers |
| van semi-trailers | fuel tank semi-trailers | logging semi-trailers | Fence Semi trailers |
| Spare Parts: | |||
| Leaf spring, | flat bar, | Chassis, | H-beam |
| Air suspension, | mechanic suspension, | bogie | Coupling, |
| Axle | air chamber, | slack adjuster | hitch. |
| Brake drum | brake shoe | brake lining | wheel hub |
| tubeless wheel rims, | tube wheel rims, | Aluminum wheel rim | wheel bolt |
| u bolt | center bolt | hub bolt | twist lock, |
| Turntable, | 5th wheel, | landing gear, | king pin, |
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