WL1-3508 Engineering PP Precision Instrument Case

With a 350 x 300 x 79 mm outer and 344 x 268 x 72 mm inner cavity plus a 240 mm narrowest clearance, this flat format suits long gauges, flat instruments, inspection fixtures, bar-shaped workpieces and assemblies that need to lie flat. Because the lid and base depth is 36 + 36 mm, foam must be relatively thin, and the load centre should sit close to the base to stop contents shifting during handling. If your equipment has raised features or needs multi-layer separation, mention it during quotation so the Zhongshan plant can review insert cutting and internal layout, and sample first where needed.

Raising the wall from 2.2 mm to 3 mm and using engineering PP gives the body more margin against compression and deformation, and the net weight rises to about 995 g. For metal parts, frequent handling or stacked loads, the 3 mm version is usually the safer choice, while 2.2 mm models in the same series suit lighter instruments where lower weight matters most. Note that this data sheet makes no numeric load or stacking guarantee, so for stacking heights, drop conditions and long-distance transport, provide the real operating conditions and the factory will assess them.

The export data records that each piece is bagged and the carton measures 730 x 615 x 428 mm holding 20 pieces. Calculating per full carton gives more accurate estimates of storage volume, pallet loading and freight, and makes it easier to align quantities with container loads. If your programme needs a colour box, manual or another retail format, that is a negotiable packaging customisation and it changes carton dimensions and quantity per carton. For bulk orders, include the target quantity and destination port or delivery point so the factory can quote logistics figures to match the packaging plan.

The case is built in an IP67 waterproof and dustproof direction, and in daily use the main defence against dust and rain is the condition of the gasket and latches. Before closing the case, check the sealing surface for sand, oil or scratches and confirm the latches are fully engaged; in dusty or humid environments, clean and check gasket elasticity periodically. Note that this data does not claim MIL-STD or comparable military certification, and IP67 performance depends on real operating conditions. If your project requires a defined water test, discuss the verification method with Kexin New Materials (Guangdong) Co., Ltd. in Zhongshan.