Detailed Product Description

Kingpin Series

Features:

Manufactured from high tensile drop forgings and heat-treated

Available in bolt-on series and welded series

Complies with Australian Standards AS and Australian Design Rule ADR

Kingpin Instruction

The function of the kingpin is to engage the semi-trailer to the fifth wheel. The Kingpin is the most critical component used in the load transfer from semi-trailer:

Making a Selection

The D-value and thickness of the welding plate are two considerations in making a kingpin selection for a semi-trailer design. The actual D-value of the selected kingpin must be larger than the calculated D-value. Then determine the thickness of the skid plate

Kingpin Installation

Welding on a channel support for the 2 inch welded kingpin must be more than 110mm between welds

Kingpin Operation

Operation of the semi-trailer will cause normal wear on the kingpin due to abrasion. The following are limits of wear allowable:

2 kingpin    A 50.80mm≥49mm     B 73mm≥71mm

3.5 kingpin   C 88.9mm≥86mm      D 114mm≥112mm