Progressive stamping die mounted in a press at the YBT plant in Taichung, Taiwan

Manufacturing Services

Sheet Metal Bending

CNC press brake forming on seven TRUMPF and SafanDarley machines, for enclosures, covers and formed panels up to 2.5 m long.

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What determines whether a bend can be formed as drawn?

Three constraints decide whether a bend on a drawing can actually be produced. The first is bend radius against material thickness: too tight a radius on the wrong grade cracks the outer surface, and stainless is less forgiving than mild steel. The second is flange length against the tooling: a flange shorter than roughly the die opening cannot be supported, so it either deforms or cannot be gripped. The third is bend sequence, because each bend removes access for the next one, and a part that is theoretically formable can still be impossible to produce in a workable order. YBT reviews these three points as part of quotation rather than after the first article, and returns the specific change needed when a feature will not form as drawn.

What are the sheet metal bending specifications?

Check the figures below against your drawing before you send it. If the number you need is not listed, ask us directly.

Sheet Metal Bending capability
Parameter	Capability
Press brakes	7 units: TRUMPF TruBend 5170 ×2 (170 t, 3 m bed, installed 2025); TRUMPF TruBend 3066 ×3 (66 t, 2 m bed); SafanDarley E-Brake 35-1250 ×2 (35 t, 1 m bed, electric)
Max bend length	2.5 m in production (3 m bed on TruBend 5170)
Press force	35 t, 66 t and 170 t classes
Materials	Stainless steel, aluminium, galvanised and cold-rolled steel; full grade list in the materials guide
Bend types	Z-bends, offset bends, acute and obtuse angles
Tolerance	Confirmed against the drawing at quotation; blanks are laser cut to ±0.1 mm or stamped to ±0.05 mm before forming
Tooling	Standard punch and die sets held in house
DFM review	Included at quotation
Lead time	Parts typically 1 to 2 weeks after order, depending on quantity
MOQ	Guideline 1,000 pcs per part number; smaller quantities quoted case by case, unit price reflects volume

Figures reflect YBT’s in-house equipment and plant records as of 2026. The workable range for a specific part is confirmed at quotation.

Typical applications

Foodservice

Grill bodies, burner covers and stainless enclosures.

Foodservice ›

Server & data centre

Rack panels, chassis parts and mounting hardware.

Server ›

Outdoor living

Patio heater reflectors, bases and enclosures.

Outdoor living ›

Questions you may have

Will you tell us if a bend will not form?

Yes. Bend radius, flange length and bend sequence are checked at quotation, and the specific change needed is returned with the quote rather than after the first article.

What is your minimum flange length?

It depends on material, thickness and the die opening used, so it is confirmed against your drawing at quotation. If a flange is too short to form on the tooling held, the specific change needed is returned with the quote.

Can you bend after surface treatment?

Forming is done before finishing. Where the finish on the bend line matters, the part is bent first and then polished, powder coated, painted or plated, so the coating is not cracked at the radius.

Do you provide flat pattern development?

Yes. Send a STEP model and the flat pattern is developed at YBT for the tooling and material used. A dimensioned 2D drawing alongside the 3D file is the fastest combination to quote.