Door Glass Run Channel — Long, Complex Bends at High Precision
The long guide rail that decides how smoothly a window glides — mass-produced with curve-following, high-precision roll forming.
- 01
Challenge
A glass run channel must follow the door's 3D curvature while holding the cross-section precision that governs smooth glass travel — over a long length. Even slight section waviness translates directly into rattles or binding.
- 02
Approach
A two-stage approach: roll-form the section to precision, then sweep it to the door's curvature in a dedicated bending step. The material is zinc-coated HSS (HC340LAD+Z); for corrosion-critical specs the same section is also formed in SUS316.
- 03
Outcome
In mass production for automotive customers. Offering the same functional section in both steel and stainless allows flexible response to per-model and per-grade spec differences.
Key specs
- Material
- HC340LAD+Z t=1.2 / SUS316 t=1.2
- Process
- Roll forming + sweep bending
- Factory certifications
- IATF 16949 / ISO 9001
- Production stage
- Mass production
Partner factory
BRFM Roll Forming (Suzhou)
Changshu, Suzhou, Jiangsu · IATF 16949 / ISO 9001 / ISO 14001 / ISO 45001
The cases on this page are the partner factories' own production records (based on each company's materials, with the factory named on every case). For similar sourcing or manufacturing needs, FENTEX acts as your single point of contact.
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