Precision engineered, built in-house, shipped worldwide

Telecom enclosures: what actually fails in the field

Typical telecom parts we manufacture

• Outdoor base-station cabinets with IP55 gasket channels and plinth
• Fibre distribution boxes with port-specific knockout patterns
• 19-inch rack side panels, plinths and cable-management trays
• Pole-mount brackets and wall frames in galvanised steel
• Antenna shrouds and weather hoods in aluminium

01Ingress protection is a gasket and flatness problem

An IP55 door does not fail because the gasket is wrong; it fails because the door panel is not flat enough to compress it evenly. Powder coating adds 60–120 µm per face and bakes at 180–200 °C, which is enough to move an unreinforced 1.5 mm panel. We add return flanges or form the stiffening into the panel so the sealing face stays flat through the cure, and we check flatness before the gasket channel is welded in, not after painting.

02Cable entries decide the finish you can accept

Every knockout is a bare-metal edge in a powder-coated wall. Rounded or drawn knockouts keep the coating intact around the entry; punched holes with burrs let moisture creep under the film and start rust from the inside. If the installer will punch their own entries on site, we design a reinforced landing area so their tool does not deform the panel.

03Galvanic pairs on pole-mounted hardware

Aluminium housings bolted to galvanised steel brackets with stainless fasteners create two different galvanic environments in one joint. Isolating washers and sleeve-type fastener holes are cheap at the fabrication stage and expensive to retrofit at 2 a.m. on a mast. We ask about the mounting stack early because it changes both the hole specification and the finish.

Material and finish choices for telecom hardware

SGCC galvanised steel in 1.2–2.0 mm is the workhorse for outdoor cabinets: the zinc layer protects cut edges, and powder coat over it survives UV and salt spray well. 5052 aluminium wins where the enclosure is lifted, mounted high or weight-limited, and where anodising is preferred over paint. 304 stainless is reserved for coastal and industrial-atmosphere installations where coating damage would otherwise become a rust path. We would rather change the coating system than add thickness — thickness is where cost and weight compound.

Quality records telecom buyers ask for

Telecom programmes usually arrive with a defined inspection scope: first-article inspection per drawing revision, dimensional reports on the sealing faces, coating thickness readings and salt-spray expectations from the finish specification. We issue those with the shipment as standard, and batch traceability runs from the raw coil number through to the packed cabinet so a field claim can be traced to a production date.