45mm Tandem Slipper Hanger Kit Tandem Axle

45mm Tandem Slipper Hanger Kit for 6mm Slipper Springs

45mm tandem slipper hanger Kit suited to tandem axle trailers up to 2400kg. Use only on 6mm springs with 3 leaf tail. (765mm eye to tail).

Use only on 6mm springs with 3 leaf tail. (765mm eye to tail)

Slipper Spring Hanger Installation

Slipper spring hanger installation is quite simple when hangers are installed on a 50mm x 50mm steel angle section.

• Install the centre hanger in the middle of the steel section
• Measure the rear tail and install front and rear hanger so that 1/2of the tail is in the centre of the hanger.
• Clamp the steel angle to the chassis rail with 56mm u-bolts.
• Move the centre hanger to approximately 150mm back of centre. This position is approximate. Measure coupling head weight, it must be no lighter than 5% of the ATM.

Important derating factor

Especially relevant, non-loading sharing tandem setups like slipper spring assembles must be de-rated by 20%.

De-rating makes allowance for occasions when most of the trailer weight is on one axle. Excess loading on the axle occurs when one wheel is parked on the gutter.

Example, trailer slipper springs with a rating of 2400kg would actually be rated on the trailer registration as 1920kg or 20% rather than 2400kg

Important to note that the hangers be installed 700mm from centre of eye to centre of the rear hanger.

Hangers installed greater than 700mm centres will cause the rear leaf to jump out under shock loading conditions like deep potholes in the road.

Finally, hangers installed closer than 700mm centres will cause the spring to lock in the rear hanger and break.

Bolts supplied are 1/2 inch. Most 6mm springs have 1/2 inch ID bushes with 22mm OD.

45mm Slipper Hanger Kit comprises

• Two Bolts + Nylocks
• 2 x Rear keepers
• 2 x Front Hangers