One-stop precision sheet metal manufacturing
One-stop OEM partner for machine guard: MetlTek runs precision sheet metal, mechanical assembly and complete unit delivery from a single plant in Kunshan, China. Founded in 2001, the factory runs three laser cutting machines (a Trumpf 3030 plus two Hongshan machines, the largest 6000 x 2540 mm), a 6.5 m CNC gantry machining center, a Salvagnini P2Lean bending center, Panasonic and Fronius welding robots and an 8 m rail-mounted welding cell. Finished goods ship to industrial customers across Europe and North America.
Three commitments we are judged on by every customer, on every order.
Round-the-clock response
Send drawings at any hour — an engineer replies within one working day, not an automated ticket.
Factory-direct pricing
No trading layer in between. You buy from the plant in Kunshan that actually cuts, bends and welds the parts.
Delivery you can plan around
Committed lead times, serialised inspection records and export packing that survives ocean freight.
| Material | Stainless steel 304, 316L, 1.4301 / 1.4404, brushed or 2B finish |
|---|---|
| Sheet thickness | 0.8 – 6.0 mm |
| Tolerance | ± 0.05 mm (laser cut, all machines), ± 0.25° (Salvagnini / TRUMPF bending), ± 0.3 – 0.5° (conventional brakes) |
| Surface finish | Brushed, polished, passivated, weld seams ground flush |
| Minimum order | 1 piece for prototypes, series from 20 pieces |
| Lead time | Sample 8–12 working days · series 4–6 weeks |
A guard is only a guard if the openings are smaller than the reach they are meant to stop and the panel cannot be pushed aside or removed by hand. That means it is manufactured to the opening sizes, distances and fixing details your risk assessment sets, not to a picture of a fence. We build the frame, the panel retention and the interlock preparation to those figures, and we will flag any conflict we see between a drawing and the assessment rather than quietly building the drawing.
| Frame | 1.5 – 3.0 mm folded sheet, or tube and section |
|---|---|
| Opening dimensions | Manufactured to the figures set by your risk assessment |
| Viewing panels | Polycarbonate or laminated, with thickness and retention agreed against the expected impact |
| Interlock preparation | Mounting for the specified switch, hinges and safety hardware during fabrication |
| Materials | Coated steel frame, stainless 304 / 316 for washdown and food areas |
| Finish | Powder coat to RAL; high-visibility colours available |
Four things that decide whether a metal enclosure project lands on time and on budget.
Tolerances we can hold
±0.1 mm on laser-cut features and ±0.3 mm on formed parts, verified before dispatch.
Quality you can audit
ISO 9001 processes, first-article inspection and a measurement report with every series batch.
One supplier, five processes
Cutting, bending, welding, coating and mechanical assembly under one roof — no hand-offs between vendors.
Built for export
Export-grade packing, customs documentation and container loading planned for Europe and North America.
Optical sorter cabinets, infeed frames and buffer hoppers for Tomra (Norway). Anti-stray light precision is achieved through bending tolerance, robot seam welding and matte black interior coating. Highlights: precision light sealing, 6.5 m gantry machining in one setup, matte black interior.
Deep-drawn fan scrolls, guide rings and impeller shrouds for Ziehl-Abegg (Germany). One-piece forming means fewer seams and smoother inner walls, so pressure loss and noise stay low. Highlights: one-piece deep drawing, robot circumferential sealing weld, accurate balance datum.
Vertical collector housings with conical dust hoppers and support frames for Camfil (Sweden). Fully welded gas-tight construction with machined sealing flanges. Highlights: gas-tight welding, anti-bridging hopper forming, machined flange faces, outdoor-grade coating.
Laser machine control cabinet and sealed top housing (sheet metal structure only) for Trumpf (Germany). Sealing is continuous across the top joint so the IP66 rating carries across the whole cabinet. Highlights: IP66 sealing, sealed top transition, oil-resistant industrial coating.
Split upper and lower equipment frames with a machined mounting plate between them for AP TECH (Korea). The 6.5 m gantry mills the mounting face in one setup and assembly gaps are held uniformly. Highlights: gantry-machined mounting face, granite plate fitting, assembly gap control, rigid vibration-damped frame.
Sectioned conveyor frames, support structures, side guarding and drive housings (sheet metal structure only) for Vanderlande (Netherlands). 8 m rail-mounted robot welding keeps long sections straight and interfaces interchangeable. Highlights: long-section robot welding, interchangeable section interfaces, outdoor salt-spray coating.
Opening size against reach distance
A guard with the right frame and the wrong openings does not prevent access. We build to the opening and distance figures your assessment gives us and raise the conflict if a drawing disagrees with them.
Rigidity over a large opening
A large unsupported panel flexes, and a panel that flexes can be pushed aside. Bracing, panel thickness and frame stiffness are decided together rather than one at a time.
Fixings that cannot be defeated by hand
A fixed guard whose fasteners can be undone by hand will be removed within a week. Fastener type is specified so the guard needs a tool, and the detail is shown on the drawing.
Visibility of the process
A guard that hides the operation gets taken off. Panel material, frame proportions and colours are chosen so the operator can still see what the machine is doing.
Quality is measured, not claimed. A precision inspection system compares 40 million measurement points against your CAD in 0.1 seconds per part, and every batch is documented under our ISO 9001 system. Reference customers include TOMRA, TRUMPF, RITTAL, ZIEHL-ABEGG, CAMFIL, VANDERLANDE, MAHLE and WEISS TECHNIK.
There is no fixed MOQ. Prototypes and small batches from one piece are accepted, and unit prices fall as volume grows. One-off tooling cost is quoted separately.
Yes. We regularly work under NDA and produce strictly to customer drawings. Files stay on an internal server and are never shared with third parties.
A first-article sample is typically ready in 7–10 working days, and series production runs in 3–5 weeks depending on quantity and surface finish.
We manufacture to the opening sizes, distances and fixing details your risk assessment specifies, and we will flag any conflict we see with those figures. The risk assessment and the compliance judgement stay with you, which is the correct split of responsibility.
Yes — guard frames are prepared for the interlock switch, hinges and safety hardware your design calls for, and can ship with them installed.
Polycarbonate or laminated panels are both used; thickness and retention are set against the impact the risk assessment expects, rather than chosen for appearance.
Send your drawings and quantity — you will get a quotation with lead time, not a sales script.
Tell us what you need — our engineer replies within 1 working day.