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High-Accuracy Sheet Metal Bending Services

Metal Bending is critical for appliance, transportation, and industrial equipment manufacturers. Key products:

  • Electrical cabinet components
  • Automotive body panels
  • Conveyor system parts
  • Furniture structural frames
  • HVAC mounting brackets
  • Agricultural machinery covers

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Advanced Manufacturing Capabilities

Integrating Engineering Expertise, Advanced Manufacturing Processes, and Flexible Production Capabilities to Support Product Development from Initial Prototypes to Scalable Production.

Precision Sheet Metal Bending

We provide high-accuracy (±0.10mm) sheet metal bending for prototypes to mass production, with ISO-certified quality control, repeatable precision, fast turnaround, and reliable performance across industrial applications.

Free (air) Metal ‌Bending

Commonly used for large-sized or small-batch production. Achieved with universal dies on CNC press brake machines for flexible sheet metal forming, delivering accurate bends, faster lead times, and cost-effective fabrication.

CNC Press Brake Bending

We deliver precision CNC press brake bending for complex sheet metal parts, ensuring consistent angles, tight tolerances (±0.10mm), and repeatable accuracy from prototype runs to high-volume production.

Sheet Metal Mass Production

We deliver high-volume, cost-optimized sheet metal components with tight tolerances (±0.1mm) and guaranteed consistency, supported by end-to-end quality control, scalable production, rapid fulfillment, and dependable manufacturing.

Our Powerful Metal Bending Part

Specializing in press brake bending up to 3000-ton capacity, we achieve ±0.5° angular accuracy on 6m-long sheets. Utilizing CNC-controlled tooling, we handle V-bending, air bending, and coining for aerospace, automotive, and construction applications. Our engineers optimize bend sequences to eliminate springback in carbon steel, copper, and titanium assemblies.
 
Functional Bending
  • 10+ Years of CNC Machining Services
  • Tight Tolerance of 0.005mm
  • Instant Quote As fast as 2 Hours
  • 2 working days deliver time at fastest
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Appearance Bending
  • 10+ Years of CNC Machining Services
  • Tight Tolerance of 0.005mm
  • Instant Quote As fast as 2 Hours
  • 2 working days deliver time at fastest
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Assembly-Ready Bending
  • 10+ Years of CNC Machining Services
  • Tight Tolerance of 0.005mm
  • Instant Quote As fast as 2 Hours
  • 2 working days deliver time at fastest
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Metal Bending Materials

Forming 0.5-6mm thick metals (A36 mild steel, aluminum 6061-T6) with 0.3° angle accuracy using CNC press brakes. Specializing in complex bends with 1T radius in springback-controlled materials for automotive brackets and electrical cabinets.

Metals

Lightweight, high thermal conductivity, Excellent Machinability, Superior Dimensional Stability, Tight-Tolerance Capable, Perfect for Complex CNC Milling and Turning.
Price: $0
Lead Time: < 5 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Extremely lightweight (67% aluminum density), good vibration damping, requires surface treatment.
Price: $0
Lead Time: < 10 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Excellent malleability, corrosion-resistant, decorative finishes, suitable for intricate stamped panels.
Price: $0
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High electrical conductivity, soft yet work-hardening, requires annealing during multi-stage forming.
Price: $0
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Cost-effective formability, high strength-to-weight ratio, requires anti-rust coating for exposed edges.
Price: $0
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Corrosion-resistant, retains strength after welding, maintains integrity in harsh environments.
Price: $0
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Aerospace-grade strength, biocompatible, seawater corrosion resistance, difficult to machine.
Price: $0
Lead Time: < 10 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Lightweight, high thermal conductivity, Excellent Machinability, Superior Dimensional Stability, Tight-Tolerance Capable, Perfect for Complex CNC Milling and Turning.
Price: $0
Lead Time: < 5 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Plastics

Fast-flowing melt, low shrinkage (0.4-0.7%), requires pre-drying (80°C/4h), ideal for automotive dashboards and consumer electronics housings.
Price: $0
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High melt viscosity (300-350°C processing), moisture-sensitive (0.02% max), optical-grade clarity for LED lenses and medical device components.
Price: $0
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Crystallization-sensitive cooling (80-120°C mold), high dimensional stability, precision gears and fuel system valves.
Price: $0
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Moisture absorption (2.5-3.5%) requires post-molding annealing, self-lubricating bushings and automotive cable ties.
Price: $0
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Extreme processing temps (380-400°C), low shrinkage (0.1-0.3%), aerospace bushings and surgical sterilization trays.
Price: $0
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Heat distortion resistance (150°C), electrical insulation, glass-fiber reinforced automotive connectors.
Price: $0
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Aerospace-grade strength, biocompatible, seawater corrosion resistance, difficult to machine.
Price: $0
Lead Time: < 10 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Lightweight, high thermal conductivity, Excellent Machinability, Superior Dimensional Stability, Tight-Tolerance Capable, Perfect for Complex CNC Milling and Turning.
Price: $0
Lead Time: < 5 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Low melt strength (LDPE: 160-240°C), high flow rate for thin-wall containers and chemical-resistant pipeline fittings.
Price: $0
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Low density (0.9g/cm³), living hinge capability, disposable syringes and automotive HVAC ducts.
Price: $0
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High mold temperature (60-80°C) reduces internal stress, low warpage, replaces glass in automotive taillights and cosmetic packaging.
Price: $0
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Sheet Metal Bending Tolerances and Standards

ISO 9001:2015 and ISO13485-2016 Certificated, we ensures providing our customers with quality prototypes and production parts. Mature and advanced supporting metal bending machines and skilled technicians provide accurate and high quality metal bending services for rapid prototyping and production.

Surface Finishes by Material

Different materials require different finishing processes. Explore the most suitable surface finishes for aluminum, stainless steel, titanium, brass, copper, engineering plastics, and more to achieve the ideal balance of protection, appearance, and performance.

As Machined
As Machined
Description: Standard finish with surface roughness of 3.2 μm (126 μin), removes sharp edges and deburrs parts cleanly. Key Use: Functional parts requiring no post-processing (e.g., brackets, gears). Process Tolerance: Dimensional ±0.1 mm, Ra 3.2±0.5 μm Process Specifications: ISO 2768-m standard, burr height ≤0.05 mm
Anodizing
Anodizing
Description: Electrochemical oxide layer for corrosion resistance and aesthetics. Process Compatibility: Post-machining surface treatment Key Use: Aerospace components, consumer electronics (e.g., phone frames). Process Tolerance: Coating thickness 10-25 μm±2 μm, color consistency ΔE≤1.5 Process Specifications: MIL-A-8625 or ISO 7599, sealing pH 5.5-6.5
Alodine
Alodine
Description: Chemical film for corrosion protection and paint adhesion. Process Compatibility: Post-cleaning chemical immersion Key Use: Aviation and automotive electrical housings. Process Tolerance: Film thickness 0.5-3 μm, visual uniformity Process Specifications: Immersion time 3-10 min, bath temp. 20-30℃
Black Oxide
Black Oxide
Description: Thin magnetite layer for corrosion resistance and reduced glare. Process Compatibility: Post-machining chemical treatment Key Use: Tools, firearms, automotive fasteners. Process Tolerance: Coating thickness 0.5-1.5 μm, salt spray ≥24 hrs Process Specifications: Alkaline bath pH 13-14, process time 5-30 min
Brushed Finish
Brushed finish
Description: Linear abrasive finish for decorative texture. Process Compatibility: Manual/CNC abrasive belts Key Use: Appliance panels, architectural trims. Process Tolerance: Texture depth 0.05-0.2 mm, angle deviation ≤5° Process Specifications: Abrasive belt grit 80-240, feed speed 10-30 m/min
Etching
Etching
Description: Chemical/mechanical removal for micro-texturing or marking. Process Compatibility: Laser/chemical masking Key Use: Circuit boards, decorative logos. Process Tolerance: Etch depth 0.01-0.5 mm±5%, alignment ±0.1 mm Process Specifications: Etchant concentration 10-30%, laser power 20-100 W
Electroless Plating
Electroless Plating
Description: Uniform metal coating (e.g., nickel) without electricity. Process Compatibility: Chemical bath deposition Key Use: Wear-resistant industrial valves, connectors. Process Tolerance: Coating thickness 5-50 μm±5%, porosity ≤5/cm² Process Specifications: Bath temp. 85-95℃, pH 4.5-5.5
Electroplating
Electroplating
Description: Electrochemical metal coating (e.g., chrome, zinc) for durability. Process Compatibility: Post-machining electrodeposition Key Use: Automotive trim, jewelry. Process Tolerance: Coating thickness 5-25 μm±2 μm, adhesion ≥4B (ASTM B571) Process Specifications: Current density 1-10 A/dm², bath temp. 40-60℃
Electrophoretic Coating
Electrophoretic
Description: Polymer coating via electric field for corrosion resistance. Process Compatibility: Post-cleaning immersion Key Use: Automotive frames, HVAC components. Process Tolerance: Coating thickness 15-30 μm±3 μm, edge coverage ≥80% Process Specifications: Voltage 50-300 V, cure 160-200℃×20 min
Electropolishing
Electropolish
Description: Electrochemical finishing for smoother, cleaner, corrosion-resistant surfaces with a bright finish. Process Compatibility: Post-machining. Key Use: Medical, pharmaceutical, semiconductor, and aerospace parts. Process Tolerance: Material removal 5–25 μm, Ra 0.1–0.4 μm. Process Specifications: ASTM B912 or ISO 15730 with controlled electrolyte and current density.
Grinding
Grinding
Description: Precision abrasive finish for tight tolerances. Process Compatibility: Surface/cylindrical grinding Key Use: Bearing races, hydraulic shafts. Process Tolerance: Dimensional ±0.005 mm, Ra 0.4-0.8 μm Process Specifications: Wheel grit 60-120, coolant flow 5-20 L/min
Heat Treatment
Heat Treatment
Description: Thermal process to alter material hardness/toughness. Process Compatibility: Post-machining quenching/tempering Key Use: Gears, cutting tools. Process Tolerance: Hardness HRC 45-60±2, distortion ≤0.1% Process Specifications: Quench temp. 800-1000℃, temper time 1-4 hrs
Knurling
Knurling
Description: Diamond or linear pattern for improved grip. Process Compatibility: CNC lathe rolling Key Use: Handles, adjustment knobs. Process Tolerance: Pattern depth 0.2-0.5 mm, pitch ±0.05 mm Process Specifications: Roller pressure 200-500 N, feed 10-50 mm/min
Laser Engraving
Laser Engraving
Description: Permanent marking via laser ablation. Process Compatibility: Post-processing laser systems Materials: Metals, plastics, wood Key Use: Serial numbers, branding on industrial parts.
Overmolding
Overmolding
Description: Molding soft material (TPU/silicone) over rigid inserts. Process Compatibility: Injection molding Materials: Plastics, metals (as inserts) Key Use: Ergonomic handles, waterproof seals. Process Tolerance: Overmold thickness 1-5 mm±0.2 mm, bond strength ≥5 MPa Process Specifications: Injection pressure >5 MPa, mold temp. 40-80℃
Polishing
Polishing
Description: Mirror-like finish via abrasive compounds. Process Compatibility: Manual/robotic buffing Key Use: Medical instruments, luxury fixtures. Process Tolerance: Ra 0.025-0.1 μm, gloss ≥90 GU Process Specifications: Wheel speed 1000-3000 rpm, compound grit 2000-5000
Passivation
Passivation
Description: Acid treatment to remove free iron and enhance corrosion resistance. Process Compatibility: Post-cleaning chemical immersion Key Use: Surgical tools, food processing equipment. Process Tolerance: Film thickness 0.001-0.01 μm, salt spray ≥96 hrs Process Specifications: Nitric acid 20-50%, process time 20-60 min
Powder Coating
Powder Coating
Description: Electrostatic polymer powder cured into durable film. Process Compatibility: Post-cleaning spray and bake Key Use: Outdoor furniture, automotive wheels. Process Tolerance: Coating thickness 60-120 μm±10 μm, ΔE≤1.0 Process Specifications: Voltage 30-90 kV, cure 180-200℃×15 min
Phosphating
Phosphating
Description: Phosphate layer for lubrication and paint adhesion. Process Compatibility: Chemical immersion Key Use: Engine components, firearm parts. Process Tolerance: Coating weight 2-5 g/m², crystal size ≤5 μm Process Specifications: Bath pH 2-4, process temp. 40-70℃
Painting
Painting
Description: Liquid coating for color and protection. Process Compatibility: Spraying/dipping Materials: Metals, plastics Key Use: Consumer electronics, automotive body panels. Process Tolerance: Coating thickness 20-50 μm±5 μm, adhesion ≥3B (ASTM D3359) Process Specifications: Spray pressure 0.3-0.6 MPa, cure 80-120℃×30 min
Sandblasting
Sand blasting
Description: Abrasive jet finish for uniform matte texture. Process Compatibility: Post-machining blasting Materials: Metals, glass, stone Key Use: Architectural facades, engine blocks. Process Tolerance: Ra 1.6-6.3 μm, coverage ≥95% Process Specifications: Grit size 80-120, air pressure 0.4-0.7 MPa
Teflon Coating
Teflon Coating
Description: Non-stick, chemical-resistant polymer layer. Process Compatibility: Spraying/baking Materials: Metals, ceramics Key Use: Cookware, chemical valves. Process Tolerance: Coating thickness 15-50 μm±5%, non-stick cycles ≥1000 Process Specifications: Sintering 360-400℃, cure time 10-30 min
Tumbling
Tumbling
Description: Barrel polishing for edge rounding and deburring. Process Compatibility: Vibratory/rotary barrels Materials: Metals, plastics Key Use: Jewelry, small hardware components. Process Tolerance: Edge radius R0.1-0.5 mm, weight loss ≤1% Process Specifications: Media size 3-10 mm, speed 10-30 rpm, time 1-12 hrs
SPI Finish
SPI Finish
Description: Graded texture (e.g., SPI-A1 for glossy, SPI-C3 for matte). Process Compatibility: EDM, polishing Materials: Tool steel, aluminum molds Key Use: Plastic injection molds for consumer products. Process Tolerance: Ra 0.05-1.6 μm, texture replication ≥90% Process Specifications: SPI-SPE-1 standard, EDM current 5-50 A

What is Bending?‌How Does Bending Work?‌

Bending is a ‌fundamental metalworking process‌ that reshapes sheet metal, tubes, or bars into angled or curved forms by applying force. It is widely used to create V-shapes, U-channels, flanges, and complex geometries for applications like brackets, enclosures, frames, and structural components. Common materials include aluminum, stainless steel, carbon steel, and copper, with thicknesses ranging from thin foils (0.5 mm) to heavy plates (12 mm+).

  • Design & Tooling Setup‌:CAD models specify bend angles, radii, and tolerances.Custom tooling (dies and punches) is selected based on material type and thickness.
  • Material Clamping‌:The workpiece is securely clamped onto a press brake or bending machine to prevent slippage.
  • Bending Process‌:Press Brake Bending‌: A punch presses the material into a die, forming precise angles (e.g., 90° bends).
  • Roll Bending‌: Material passes through rollers to create curves or cylindrical shapes (e.g., pipes, rings).
  • Rotary Bending‌: A rotating die forms complex contours with minimal surface distortion.
  • Springback Compensation‌:Materials naturally "spring back" slightly after bending. Tools are adjusted to account for this rebound and achieve target angles.

Success Stories of Metal Bending Projects

FAQs

Does aluminum bend more easily than steel?‌

Aluminum alloys demonstrate superior formability versus steel counterparts, with approximately 50% greater elongation capacity. However, performance 

varies significantly by alloy composition (e.g., 3003 vs 6061 aluminum) and steel grade (mild vs HSLA), with additional considerations for material temper, 

section geometry, and bending methodology.

High-strength refractory metals including tungsten and certain titanium alloys exhibit limited ductility, rendering them unsuitable for conventional 

bending operations due to their extreme hardness and fracture susceptibility.

Standard cold forming accommodates steel sheets from 0.5-0.8 inches (12-20mm) with minimum bend radii of 2.5x material thickness for transverse 

bends and 3.75x for longitudinal bends. Thicker materials (0.8-2 inches/20-50mm) require thermal forming processes.