Precision CNC Tube Bending Services for Industrial Applications

Engineering-driven tube and pipe bending for production-ready parts. We deliver on spec and on schedule.

As an integrated manufacturing partner, we combine tube fabrication with machining, welding, and finishing. This simplifies your supply chain and delivers consistent results.

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SLA 48h feedback FAI → In-process → Final CoC / CoA / PPAP

Tube Bending Services

We provide repeatable, tight-tolerance bending for round, square, and rectangular profiles. Quality controls align with ISO standards and measurable tolerances.

CNC & Mandrel

CNC mandrel bending for tight radii and controlled ovality. Ideal for thin-wall tubes.

Engineering Review

DFM feedback before production. Typical dimensional tolerance: ±0.5 mm under standard conditions.

One-Stop Fabrication

In-house welding and finishing. FAI → in-process → final inspection with documentation.

Technology & Methods: CNC / Mandrel / Rotary Draw / Roll

We select the right process for your geometry, material, and finish requirements.

CNC Mandrel Bending

Ball, plug, and wiper mandrels for thin-wall tubes. Minimizes wrinkling and ovality at tight CLR. Ideal for thin-wall stainless and aluminum.

Rotary-Draw Bending

Precision draw with consistent angles. Great for repeatable multi-plane bends in production runs.

Roll Bending

Large sweep radii and long arcs. Ideal for thicker sections in frames and architectural forms.

Integrated Flow

Laser tube cutting → bending → notching/coping → welding → machining → surface finishing. Ship finished assemblies as needed.

Pipe vs Tube: What We Bend

We work with both tube and pipe—following your drawing vocabulary and specifications.

Tube Specifications

Specified by OD × wall thickness on drawings. Used for structural, cosmetic, and precision applications. Example: 25 mm OD × 2 mm wall, 304 stainless.

Pipe Specifications

Specified by nominal size + Schedule (e.g., Schedule 40). Focus on ID for fluid flow and pressure rating. Provide seam type (ERW/DOM/seamless) for optimal tooling selection.

RFQ Tip: Provide nominal size, Schedule, and seam notes (ERW/DOM). We confirm tooling and inspection alignment during DFM review.

Our ISO-certified quality system ensures consistent interpretation from drawing to final inspection. We align tooling, inspection methods, and acceptance criteria to your print language.

Materials & Profiles We Bend

We select optimal tooling and process parameters for each material and profile. This ensures precise, consistent results from standard carbon steel frames to cosmetic-grade stainless assemblies.

Common Materials

  • Stainless Steel (304/316): Corrosion resistance and cosmetic finish
  • Carbon Steel: Structural strength for frames and industrial applications
  • Aluminum (5052/6061): Lightweight applications with good formability

Supported Profiles

  • Round tube & pipe
  • Square and rectangular tube
  • Schedule Pipe (per drawing specifications)
  • Custom extrusions and perforated profiles

Surface Options

  • Soft jaws and protective liners minimize cosmetic damage
  • Powder coating
  • Anodizing (aluminum)
  • Polishing & brushing

Specialty Alloys: Copper, brass, and other specialty alloys available upon engineering review.

Capacity, Minimum CLR & Tolerances

We design for manufacturability to balance tight radius, ovality control, surface quality, and dimensional accuracy.

Typical Size Envelope (Confirm at Quote)

Typical Tube Bending Ranges

  • Stainless 304/316:6–76 mm OD, 0.8–3.0 mm wall, ≤2,500 mm length
  • Carbon Steel:10–89 mm OD, 1.0–4.0 mm wall, ≤3,000 mm length
  • Aluminum 5052/6061:6–63 mm OD, 0.8–2.5 mm wall, ≤2,500 mm length
  • Schedule Pipe:1/4" to 3" nominal, Schedule 10–80, ≤3,000 mm length

Larger sizes and longer tubes require engineering review for shipping and handling. Final values confirmed per drawing.

Minimum CLR Guidelines by Material

Starting CLR Baselines (Confirm at Quote)

  • Stainless 304/316:1.0–1.5 × OD (mandrel) | ≥2.0 × OD (no mandrel)
  • Carbon Steel:1.5–2.0 × OD (mandrel) | ≥2.5 × OD (no mandrel)
  • Aluminum 5052/6061:1.0–1.5 × OD (mandrel) | ≥2.0 × OD (no mandrel)
  • Schedule Pipe:1.5–2.5 × OD (mandrel) | ≥3.0 × OD (no mandrel)

These are starting guidelines. Final CLR depends on OD, wall thickness, alloy temper, and cosmetic requirements. Confirmed at quote with DFM review.

Dimensional Control & Tolerances

  • Dimensional tolerance (tube fabrication): ±0.5 mm under standard conditions; tighter specs confirmed at quote
  • Angle & multi-bend consistency: Ensured via CNC programs and in-process checks (FAI → in-process → final inspection)
  • Ovality (round tubes): Target ≤10% at tight radii with mandrel/wiper; controlled by tooling selection
  • Springback & flattening: Compensated via tooling selection, over-bend strategies, and inspection feedback loops

Design & DFM Quick Rules

  • Minimum CLR: Start at 1.0–1.5×OD (mandrel) or ≥2.0×OD (non-mandrel); confirm by alloy and wall
  • Straight length: Keep sufficient clamp length before/after bends; call out if constrained
  • Bend sequence & interference: Specify form-before-cutting vs cut-before-form when slots/holes are near bends
  • Cosmetic faces: Identify visible surfaces; we use soft tooling and protective liners

48-hour DFM feedback with pricing included.

Need a specific tolerance stack? Share your print—we validate feasibility and measurement plan before release.

Applications: Exhaust, Handrails, Roll Cages, Frames, Heat Exchangers

We build for demanding environments across industries.

Automotive & Powersports

Roll cages, racing chassis elements, exhaust systems, and structural brackets. Tight CLR capability with repeatability for production runs.

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Architectural & Marine

Polished stainless handrails, railings, radar arches, and yacht hardware. Cosmetic control with protective tooling strategies.

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Industrial Automation & Robotics

Frames, robotic bases/pedestals, AGV/AMR chassis, and guards. Fixture-friendly bends with precise panel mounting points.

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Also serving: Thermal & HVAC (heat-exchanger coils and serpentine bends with pitch control for fluid distribution)

Pricing, Lead Times & RFQ Checklist

Pricing depends on material & size, CLR/tooling complexity, bend count/planes, secondary ops, and finish. We respond fast and support global terms (EXW/FOB/CIF) with export-ready packaging.

Price Drivers

  • Material grade and OD × wall thickness
  • CLR/D ratio and number of bends
  • Feature density near bend zones
  • Tooling complexity (mandrel type, wiper design)
  • Batch size and production volume
  • Downstream operations (notching, welding, finishing)

Lead Times

Prototype: 7–10 business days

Production: 2–4 weeks

Final timeline confirmed after drawing review and production scheduling.

RFQ Checklist — Include These Six Items

For the fastest, most accurate quote, please include:

  1. Files: STEP/IGES/DWG/SLDPRT + PDF with ballooned critical dimensions
  2. Material & spec: OD × wall (or pipe nominal + Schedule); alloy/temper; seam notes; total cut length
  3. Key features: CLR/D ratio; bend angles/sequence; straight-length constraints; slots/holes near bends
  4. Downstream processes: Notching/coping; welding/assembly requirements; machining; surface finishing (powder/anodize/polish)
  5. Batch/throughput: Prototype → production quantities; takt expectations; target lead time (standard/expedite)
  6. Delivery/logistics: Ship-to region; packaging/kitting requirements; incoterms (EXW/FOB/CIF)

Turnaround: Engineering feedback & quotation within 48 hours.

From Bending to Finished Assemblies

Ship parts ready to install with our integrated fabrication flow:

Laser tube cutting → Bending → Coping/Notching → Welding (TIG/MIG/laser) → CNC machining → Surface finishing (powder coating/anodizing/polishing)

Benefits of One-Stop Fabrication

  • Fewer handoffs = faster lead times and lower risk
  • Fixture-controlled welding for repeatable assembly
  • Consistent quality from drawing to final inspection
  • Kitting & labeling for line-ready delivery
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Frequently Asked Questions

Mandrel vs. non-mandrel—when do I need a mandrel?
Use a mandrel for tight radii (CLR <2.0×OD), thin walls, and cosmetic surfaces where ovality and wrinkling must be minimized. We confirm based on OD, wall thickness, and CLR requirements.
What is a good starting CLR for my material?
Start at 1.0–1.5×OD with mandrel and ≥2.0×OD without mandrel. Final value depends on material, wall thickness, and alloy temper. Confirmed at quote.
Can you bend square and rectangular tubes?
Yes. We control face collapse and distortion with tooling selection and sequence planning. Provide profile dimensions and wall thickness for accurate feasibility assessment.
What file formats do you accept, and how fast is your quote?
STEP, IGES, DWG, SLDPRT (plus PDFs for mark-ups). Standard response with DFM notes and pricing within 48 hours.
Do you bend Schedule pipe?
Yes. Provide nominal size, Schedule, seam notes (ERW/DOM), and required bend angles/CLR. We confirm tooling and feasibility during engineering review.
How do you protect cosmetic surfaces during bending?
Soft tooling/liners, wrap protection, and optimized process parameters minimize marking. Post-process finishing (polishing, anodizing, powder coating) available in-house.
What tolerances can you hold on tube bending?
Typical dimensional tolerance is ±0.5 mm under standard conditions. Angle and position verified through FAI → in-process → final inspection with CNC program control.
How do you manage springback?
We apply material-specific over-bend factors and validate with in-process checks. If needed, we adjust programs and tooling to meet specification.
Can you deliver finished assemblies?
Yes. Machining, welding (TIG/MIG/laser), and finishing are available in-house for turnkey assemblies. We handle kitting and labeling for line-ready delivery.
Are you ISO-certified?
We operate an ISO 9001-certified quality system with traceable records from FAI to final inspection. Documentation includes CMM reports, CoC/CoA, and PPAP upon request.

Request a Quote — Upload Your Drawings

Upload your files and tell us your target CLR, finish, and quantity. We respond with manufacturability feedback and a firm quote within 48 hours.

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Accepted Formats: STEP · IGES · DWG · SLDPRT · PDF

Laser Tube Cutting

Precision cutting with holes, slots, and miters in one setup. Blank preparation for bending.

Welding & Assemblies

Fixture-controlled TIG/MIG/laser welding for tube frames and structural assemblies.

CNC Machining

End-machining and secondary features for bent tubes and assemblies.

RFQ Form

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Form fields: File Upload, Material Spec, Key Features (CLR, angles, etc.), Quantity, Surface Finish, QA Documentation

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