WL9-5723 Protective Case

The outer shell is 572 x 405 x 227 mm and the internal cavity is 500 x 340 x 211 mm. Externally the case occupies 572 x 405 mm while the usable floor inside is 500 x 340 mm, the difference coming from the wall section, the seal channel and the moulded closing geometry rather than measurement error. Size a load from the inner dimensions, never from the outside, because outside figures overstate capacity. A 500 x 340 mm floor with 211 mm of inner height makes this one of the larger-footprint, mid-depth bodies in the 9 Series, able to take a flat equipment main unit or a panel-faced instrument standing up, and its 4680 g weight means it is normally moved by two people or on a trolley.

The exported specification for this model lists only outer and inner dimensions, with no separate lid and base depths, so plan against 211 mm of usable inner height for the closed case. That figure lets a panel-faced instrument stand complete with its connectors facing up, and it also means less headroom is left over than on a flat case; if you add a lining, its thickness comes out of the same 211 mm rather than adding to the height. Where contents are tall, confirm the 500 x 340 mm floor first and then re-check the height, so you do not settle on a body that fits the footprint but not the load.

The shell uses a sealed closure and provides an IP67 waterproof and dustproof rating. Dust entering connectors and cooling surfaces is the main risk when medical equipment is moved, and a sealed cavity limits that contamination while also making the outside of the case easy to wipe down. The rating applies to the sealed cavity of the case itself, so if you store moisture-sensitive contents, pair it with desiccant or a humidity management accessory and check the sealing face for trapped debris every time you close the lid, since a single trapped fragment undermines the seal.

The factory usage category listed for WL9-5723 is medical equipment cases. With a 500 x 340 x 211 mm cavity and a 4680 g unit weight it suits whole-unit transport of benchtop or portable medical equipment, imaging accessories, detection modules and their cables, including repeated in-house movement. Engineering PP resists the deformation that comes with repeated handling and stacking, which suits a case that is reused rather than shipped once.

The usable floors are close: 500 x 340 mm on WL9-5723 against 520 x 296 mm on WL9-5726. The split is in handling and height. WL9-5723 offers 211 mm of inner height, an 4680 g unit weight and no trolley, while WL9-5726 offers 210 mm of inner height, a 5600 g weight and a 385 mm trolley handle. Take WL9-5723 when contents are wider and the case travels by cart or vehicle, and WL9-5726 when one person has to wheel it and the load is narrower and longer. The 920 g difference between them comes mainly from the trolley assembly, so pricing and carton planning should be run separately for each model.