CBIES specializes in manufacturing precision exhaust system components for passenger vehicles, commercial vehicles, and special applications. Our capabilities include bending, hydroforming, welding, and laser processing for structural and heat-resistant applications. We support OEM and Tier 1 customers from prototype development to serial production. Send us your drawings to discuss your project requirements.

Exhaust Tip
Muffler
Connecting Tubes
EGP System
Exhaust System Fittings
Exhaust Manifold
Clamps & Flanges
Flex
CBIES EXHAUST SYSTEM COMPONENTS PORTFOLIO
Material:
Carbon Steel Tube / Aluminized Steel Tube / Stainless Steel Tube
Process:
Technical Information:
Bending radius up to 1D




Material:
Stainless Steel / Carbon Steel
Process:
Cutting, Hydroforming, Welding, Surface Finishing
Technical Information:
Edge burr ≤ 0.05 mm; Appearance / performance per drawing


Material:
Aluminized Steel / Stainless Steel
Process:
Connection Tubes, Hangers / Brackets, Clamp / Flange Interfaces
Technical Information:
Bracket hole TP ≤ 0.20 mm (standard) / ≤ 0.10 mm (critical); Weld distortion control per drawing



Material:
Carbon Steel / Aluminized Steel / Stainless Steel
Process:
Cutting, Multi-bend CNC Bending, End Forming, Robotic Welding
Technical Information:
Bend Angle ±0.3° (batch) / ±0.1° (critical); Ovality ≤ 8%; 3D profile verification by CMM / 3D scan




Scope:
CarDOC / DPF / SCR Connection Tubes & Interfaces (Interfaces only)
Process:
Aftertreatment Connection Section, End Machining (TP / FLAT / Ra), Robotic Welding
Technical Information:
Multi-interface TP + Sealing Face FLAT / Ra + 3D Routing Verification
Note: Substrate / Coating / ECU Calibration Excluded

Technical Information:
We can customize according to your drawings and requirements.

Material:
Stainless Steel / Heat-resistant Steel
Process:
Laser Cutting, Stamping, Welding (Robot / TIG / MIG) , Flange Machining
Technical Information:
FLAT ≤ 0.05 mm; Ra 3.2 μm (standard) / 1.6 μm

Material:
Stainless Steel / Carbon Steel
Process:
Stamping, Forming, Assembly
Technical Information:
Fit consistency + Torque requirement per customer spec




Material:
Stainless Steel (SUS304 / SUS321 / SUS316)
Process:
Flex Joint Fabrication, Welding, End Forming
Size Range:
Interface Coaxiality ≤ 0.15 mm (standard) / ≤ 0.08 mm (high sealing); Sealing / Fit-up per drawing




