Press brake bending backed by 127 in-house CNC machines and a 4,000 mm working envelope. Flat patterns, formed blanks and welded assemblies ship from one Dongguan floor under ISO 9001:2015, IATF 16949:2016 and ISO 13485:2016.
Most bending failures trace back to tooling or geometry, not to the press brake itself.
A K-factor guessed at the quoting stage pushes hole positions out by 0.5 mm or more. The blank looks fine on screen. On the floor the bracket misses the mating holes, and the whole lot goes back to laser cutting.
Tight radii on 5052 or 304 in a hard temper split along the grain. Scrap rate climbs, and nobody flags it until the parts are already powder coated and packed.
Tooling gets cut before the drawing is questioned. Two weeks pass, the sample arrives, and the flange heights are 2 mm off. Every downstream operation stops while you argue over revision B.
Parts bent after powder coating chip at the bend line. Parts coated after bending hide weld spatter and sanding marks under 60 μm of film. Either way the customer sees it first.
Flat pattern to finished cabinet, without handing your parts to a second shop.
Bending capacity depends on the bed, the tonnage and the tooling set, not on a catalog sheet. Our forming cells run sheet up to 4,000 mm long and take material from 0.5 mm up to 12 mm depending on alloy and bend length.
For parts that also need machined features, we cut the flat blank on a CNC mill first, then form it on the brake. Holes, slots and countersinks are already in place, so the bend-line reference stays on the same datum as the machining.
Every formed part starts as a flat pattern with a calculated bend allowance. We set the K-factor from the actual alloy, thickness and die opening rather than a default value, then verify it on the first article.
Formed features that must line up with machined ones are held on the same datum. Where a bend sits close to a critical hole, we say so in the DFM note and suggest moving the hole or opening the radius.
Use this before you send a drawing. It saves a round of questions.
| Part feature | Best process | Why |
|---|---|---|
| Enclosure under 400 mm | Press brake + spot weld | Fast setup, low tooling cost |
| Chassis rail over 2,000 mm | CNC cut + long-bed forming | One piece, no splice |
| Tight bore or thread | CNC mill after forming | Bend does not disturb the datum |
| Deep draw or complex shell | Die casting or vacuum casting | Forming cannot reach the geometry |
| Prototype quantity 1–10 | Laser cut + manual brake | No hard tooling needed |
| Thin wall under 0.8 mm | Forming with radius support | Prevents cracking at the bend |
| Cosmetic visible face | Form first, coat after | No chipping along the bend line |
| High-volume cabinet run | Dedicated fixture + CNC | Repeatable position across lots |
Bending rarely travels alone. These are the operations that feed it or finish it.
Laser cutting, forming, welding and assembly under one roof. Flat blanks to finished cabinets.
Machined bosses, threaded inserts and sealing faces added before or after forming.
Powder coating, anodizing, plating and bead blasting. Applied in the right sequence.
First-off parts in 3–5 days so fit and bend sequence can be proven cheaply.
Angled faces, cutouts and contoured edges on formed or cast housings.
When the geometry is too deep to bend, we cast the shell and machine it.
If your part falls outside a row, tell us and we will say so before quoting.
| Parameter | Range | Note |
|---|---|---|
| Sheet length | Up to 4,000 mm | Longer parts split or spliced |
| Sheet thickness | 0.5–12 mm | Alloy dependent |
| Bend angle | 30°–150° | Beyond this needs special tooling |
| Minimum flange | 4× thickness + radius | Shorter flanges need a relief |
| Inside radius | ≈ 1× thickness | Tighter risks cracking |
| Materials | Al, stainless, steel, copper | 6061, 5052, 304, 316L, A36 |
| Powder coat film | 60–100 μm typical | Cure before assembly |
| Laser marking | 1.5 mm min character | Applied after coating |
Fifteen years in Dongguan, three plants, one quality system.
Fifteen years of sheet work, from single prototypes to production cabinets. The bend sequence knowledge sits on the floor, not in a file.
Cutting, machining and forming share one datum. No shipping half-finished parts between vendors.
Quotation and a free DFM analysis within 12 hours. Production can start within 24 hours of approval.
ISO 9001:2015, IATF 16949:2016, ISO 13485:2016 and ISO 27001:2022 cover automotive, medical and data handling.
From one prototype to 10,000+ part runs. Same tooling, same inspection standard.
Raw material check, in-process monitoring, final inspection. Reports on request.
Aluminum enclosures with formed flanges and machined mounting faces. Coated after forming so the bend line stays clean.
Formed and pierced steel brackets held on the same datum as the machining. IATF 16949:2016 process control.
304 face plates with laser-marked legends and formed edges. Medical device documentation on request.
Long formed rails and cover plates that must repeat across builds. Fixtured so position holds lot to lot.
For most alloys we work to roughly one times the material thickness. On 5052 aluminum and 304 stainless in a soft temper, that is comfortable.
In a hard temper or above 6 mm thickness, we open the radius. A tight radius on hard-temper material cracks on the outside of the bend, and no amount of coating hides it.
Keep the hole at least 2.5 times the material thickness plus the inside radius away from the bend line. Closer than that and the hole distorts into an oval.
If the design cannot move the hole, we pierce it after forming instead of in the flat pattern. That costs one extra operation but keeps the diameter round.
After. Coatings cured before forming crack and flake along the bend line, and touch-up paint on a bend is visible under any light.
We form, weld, sand and then coat. Bend lines stay covered, and the film thickness stays even across the part.
Yes, and it is usually the better route. We cut and form the blank, then machine critical holes, bores and sealing faces on a CNC mill while the part sits in a fixture.
Machined features are referenced to the same datum as the bend, so the tolerance stacks once instead of twice. Machined features hold ±0.005 mm this way.
The first article confirms the K-factor we calculated. Expect the external dimensions to land inside the ±0.3 mm band up to 1,200 mm on the first pass for standard alloys.
If it does not, we adjust the flat pattern and cut a second first article. That is part of the DFM loop, not a change order.
No minimum order quantity. One prototype and a 10,000-piece run go through the same tooling and the same inspection.
Prototypes usually ship in 3–5 days. Production volume timing is confirmed with the quote rather than assumed.
Formed parts run against a fixture, and the bend sequence is fixed in the work instruction. Operators do not re-decide the order per batch.
We monitor the first and last piece of each run, plus in-process checks. Historical late-delivery probability sits below 2%.
A 3D model or a flat DXF, the alloy and temper, thickness, surface finish, and the quantity band. Notes on which dimensions are critical help more than a full tolerance block.
We reply with a quotation and a free DFM analysis within 12 hours. An NDA is available before you send files.
Upload your model or flat pattern. We review the bend sequence, tooling and radius limits, then quote with the DFM notes attached.
12-hour quote100% inspectionNo minimum order quantity
Trusted by engineers and manufacturers worldwide
Upload your 3D model or 2D drawing and get a quotation with a free DFM analysis. Maximum processing size 4,000 mm.
CNC Metals 13 grades
CNC Plastics 10 grades
Machines & processes 12 options
Surface & post-processing 10 options
Material: not selected Machine: not selected Post-process: not selected
Fill in this short form and we'll open WhatsApp with your message ready to send. We only use these details to reply to you.
Nothing is sent until you press send inside WhatsApp.
