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Weidmüller is known worldwide for the supply of high quality enclosure products. To ensure this high quality level, only the best materials for the new Klippon® TB enclosures are used. Manufacturing is in line with the most modern production processes.
Below each manufacturing process will be explained shortly to give an exclusive insight into the enclosure manufacturing.
1. Laser Cutting
A fully automated laser machine cuts the sheet steel to form the outline of each enclosure.
To support product traceability each enclosure has the article number, product description and the respective manufacturing reference number engraved directly onto the enclosure (lid and base).
2. Forming
Fabricated steel sheets are folded to form the enclosure body.
3. Welding
Weidmüller is a DVS certified welding company, which uses the tungsten inert-gas welding (TIG) as part of the mainly automated welding process. This welding process ensures reliable, secure and seamless welds at all appropriate points of enclosure manufacture.
4. Welding of the fixing elements
Weidmüller has developed a unique welding process for the secure installation of gland plates to the enclosures. Internal threaded sockets are welded directly to the enclosure without the need to use any additional sealing material. This ultimately reduces the influence for any possible ingress which may be the result of a mechanical impact, excessive torques or from vibration.
Laboratory testing is undertaken to ensure that with an impact of more than 1000kg; success is achieved based on IP, radiography, vibration and excessive pressure testing when no ingress leakage is apparent.
5. Surface treatment
Electro-polishing
For increased corrosion resistance, the enclosures are placed into an electro-polishing process. To do so, Weidmüller installed one of the most modern computerised electro-polishing machines.
During the electro-polishing process, the enclosures are placed onto flexible titanium jigs and a computer-controlled process automates the sequence of dipping the enclosures in the chemical pool (a mixture of phosphorous and sulphuric acid, the so-called electrolytes).
After electro-polishing, each enclosure passes through a cleaning process.
It is understood that Weidmüller also keeps the environment in mind!
The used rinsing water is cleaned on-site in a water-processing unit.
Powder coat paint
Sheet steel enclosures are offered with a powder coated paint finish which is required to protect the enclosures against corrosion. All sheet steel enclosures are powder coated as standard with epoxy resin (RAL 7035).
6. Gasket cutting
The main function of an enclosure is the protection of the interior equipment against any external influences and also under extreme temperature conditions. The gasket is one of the most important components of an enclosure and is designed to maintain its functionality and performance.
The integrated flat silicone gasket from Weidmüller ensures that all these demands are completely fulfilled.
The lid and gland plate gaskets are cut and produced automatically by machine into the correct form with a speed of up to 1000m/s.
7. Assembly
8. Quality testing
a) Dimensional inspection
A 3D index arm is used to spot-check the measurements of the enclosures to identify any irregularities in the final dimensions of the enclosure.
b) Vacuum test
A final computer based vacuum test is conducted in order to confirm the enclosure performance.
9. Packaging
The enclosures are packed for shipment in a durable, yet recyclable cardboard packaging.
10. Individual enclosures
Above the standard!
Within the new Klippon® TB enclosure range, many different individual configurations can be produced. The basis for this is a defined range consisting of 12 standard enclosure sizes with three standard depths.
The scope of Weidmüller’s production facilities allows for customised sizes to be manufactured upon request. Equally, catering for different equipment uses has resulted in a wide range of variation options.
The following options provide a guide to the customisation possibilities offered to our customers:
