01
Steel coil
Strip steel is delivered on coil and mounted on the decoiler at the head of the line.
Factory
Manufacturing & Quality
How the channel, fittings and assemblies are made, and what the technical documentation says about material, coating and standards.
Production
From steel coil to finished assembly
Each step below corresponds to a photograph taken in the company workshop.
How the channel, fittings and assemblies are made, and what the technical documentation says about material, coating and standards.
The photographs on this page were taken in the company workshop. They show the roll-forming line, the punching and pressing stations and the finished channel and bracket stock.
Process
Production steps
02
Roll forming
The strip is roll-formed into the channel section, with the toothed edge and the stiffening rib formed in the same pass.
03
Punching
Holes and slots are punched hydraulically. The standard channel is supplied with the slot pattern shown in the catalogue.
04
Pressing and forming
Fittings, brackets and clamp saddles are pressed and formed from sheet and strip.
05
Assembly
Channel, fittings and clamps are assembled into brace and support sets before packing.
06
Inspection and packing
Finished parts are checked and packed in bundles for dispatch.
Material and coating
Steel grade and surface finish
The values are the ones stated for the channel, fittings and clamp ranges in the product catalogue.
- Steel grade
- Q235B carbon steel to GB/T 700-2006, as stated for the channel, fittings and clamp ranges in the catalogue.
- Coating systems
- Pre-galvanised sheet, hot-dip galvanising, electro-galvanising, epoxy coating, stainless steel SS304 / SS316 and zinc-aluminium-magnesium alloy.
- Coating references
- Electro-galvanising is documented against GB/T 9799-2011, hot-dip galvanising against GB/T 13912-2002 and sherardising against JB/T 5067-1999.
- Corrosion selection
- The finish is selected against the corrosivity category of the environment (C1 to C5-M in the appendix of our catalogue).
Standards
Standards referenced in our documentation
These are the codes and design documents listed in the company product catalogue as the design basis for the support systems.
| Code / document | Title |
|---|---|
| GB 50011-2010 | Code for seismic design of buildings |
| GB 50981-2014 | Code for seismic design of mechanical and electrical equipment |
| CJ/T 476-2015 | General technical requirements for seismic supports and hangers of building mechanical and electrical equipment |
| CECS 420:2015 | Specification for seismic bracing installation and acceptance |
| GB 50243-2016 | Code for acceptance of construction quality of ventilation and air conditioning works |
| GB 50242-2002 | Code for acceptance of construction quality of water supply, drainage and heating works |
| GB 50017-2003 | Code for design of steel structures |
| 03K132-2003 / 03S402-2003 | Standard design drawings for duct supports and hangers, and for indoor pipe supports and hangers |
| 03SR417-2-2003 / 95R417-1-2002 | Installation drawings for prefabricated pipe suspension supports |
These are the standards and design documents listed in our technical documentation. Reference to a standard describes the design basis and does not by itself constitute a product certification.
Product detail
Finished parts and stock
Need the technical documentation?
Ask for the data sheet of the product range you are specifying and we will send the drawing and capacity information.