Force vs. Compression
The pack begins to compress with forces over 1000kg. It compressed 18mm before buckling at just under 4000kg.
The pallet and lid, with the exception of the locator
bosses, were undamaged
by the load.
Sleeve Pack Forklift Crash Test
Sleeve Pack Compression and Forklift Crash Test
Compression Test
Under 1000kg Load
The lids 25mm locator bosses have collasped but
the twinsheet-sleeve (side panels) and the pallet show
no deformation.
Under 4000kg Load
The loading flap begins to open, the twinsheet-sleeve begins to buckle. The whole system is compressed 18mm.
All parts inside container are still undamaged.
Compressed 75mm
Buckling occurs in the twinsheet-sleeve near the door flap when unit is compressed by 75mm.
Examination of pack one day after pressure test
The HDPE sleeve has returned to its proper shape. Only on the inside of the sleeve can you see traces of the damage from the extreme (4000 kg) load.
Forklift Crash Test
Forklift crash test
The pack was set against a wall and a fork lift was driven into the side of the unit.Because of the huge force the lid pops off and the sleeve is crunched inward. The pallet and the lid are undamaged but the sleeve is deformed.
One minute after the test
Shortly after the fork lift crash, the sleeve has returned to about 90% of it’s original shape.
There is no serious damage to the sleeve!
Only the locks in the pallet and lid are twisted due to the force of the impact. They still work and the sleeve can be set back in the groove and locked back into place.