Get a Quote
CNC Precision Tube Bending Services
Image missing Right-click → "Open image in new tab" to see path

CNC Precision Tube Bending Services

Mandrel-supported bending delivers smooth, consistent curves with minimal wall thinning and tight tolerances.
Upload STEP/IGES/DWG for DFM feedback and quote within 48 hours.

Upload Design View Samples

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

Bend Design & Engineering Process

Before production, our engineers analyze your bend geometry, material properties, and production requirements to optimize tooling and machine parameters.

We provide design feedback, material recommendations, and springback compensation calculations to ensure dimensional accuracy in final assemblies.

  • Tube OD (outside diameter) and wall thickness
  • Material specification and hardness
  • Bend radius and center line length
  • Multiple plane bends and sequence
  • Surface finish: as-bent or secondary cleaning
  • Quantity and delivery timeline

Workflow: Upload design → 48h feedback → Quote with bend analysis → Sample or production run

Tube Bending - CNC Mandrel Bending
Image missing Right-click → "Open image in new tab" to see path

Work Samples

Representative examples of our CNC tube bending capabilities. These samples showcase precision bends with smooth curves and minimal wall thinning.

Tube Bending - Manufacturing Example 1
Image missing Right-click → "Open image in new tab" to see path
Tube Bending - Manufacturing Example 2
Image missing Right-click → "Open image in new tab" to see path
Tube Bending - Manufacturing Example 3
Image missing Right-click → "Open image in new tab" to see path
Tube Bending - Manufacturing Example 4
Image missing Right-click → "Open image in new tab" to see path
Tube Bending - Manufacturing Example 5
Image missing Right-click → "Open image in new tab" to see path
Tube Bending - Manufacturing Example 6
Image missing Right-click → "Open image in new tab" to see path

Technical Capabilities

Bending Process

Our precision servo-controlled benders with mandrel support deliver smooth, repeatable curves ranging from simple single-plane bends to complex multi-directional geometries.

Mandrel support prevents collapsing and maintains wall thickness uniformity throughout the bend, enabling tight radii while minimizing springback.

Precision Standards

  • Bend tolerance:±0.3–0.8 mm
  • Min bend radius:1.5x–3x OD
  • Wall thinning:5–10% typical
  • Lead time:7–10 business days

Materials

We process a wide range of tube materials, from standard carbon steel to exotic alloys. Material selection guidance provided during engineering review.

  • Mild steel and carbon steel
  • Stainless steel (304, 316, 316L)
  • Aluminum alloys (6061, 5052)
  • Copper and brass
  • Titanium (Grade 2, Grade 5)

Tube Fabrication

Laser cutting, CNC bending, flaring, and precision welding for tube structures.

Sheet Metal Fabrication

Laser cutting, press brake bending, stamping, and enclosure assembly.

CNC Machining

Precision milling, turning, and prototyping for complex geometries.

Welding & Assembly

TIG, MIG, laser welding with complete mechanical assembly services.

Surface Finishing

Powder coating, anodizing, polishing, and plating for corrosion protection.

Tooling Quality & Automation

Custom tooling, CMM inspection, and process automation solutions.
All Capabilities

Products Using This Capability

Tops & Towers
Image missing Right-click → "Open image in new tab" to see path

Tops & Towers

Custom marine tops and towers with complex tube bends.
Bimini Frames
Image missing Right-click → "Open image in new tab" to see path

Bimini Frames

Lightweight bimini frames with precision tube bending.
Rails & Deck Fittings
Image missing Right-click → "Open image in new tab" to see path

Rails & Deck Fittings

Marine railings with smooth curves and tight tolerances.
All Products

Quality Assurance

Every bend verified for radius, position, and diameter consistency with full traceability.

Inspection & Verification

  • First Article Inspection (FAI) for every new geometry
  • Bend radius and centerline position verification
  • Wall thickness measurement at critical areas
  • Surface finish and visual inspection
  • Dimensional verification before shipping

Quality Documentation

We provide FAI reports, bend test data, material traceability certificates, dimensional inspection reports, and Certificate of Conformance (CoC).

Certification: ISO 9001 compliant quality management system with traceable inspection records.

Why Choose X-KPR for Tube Bending

When precision bends drive your assembly timeline, X-KPR delivers engineering expertise, advanced equipment, and documented quality to ensure consistent results.

DFM Review & Material Analysis

Engineers evaluate your bend geometry, material properties, and production volume to optimize tool selection and cost.

Advanced CNC Bending Equipment

Precision servo-controlled benders with mandrel support and automated tool changing for repeatable results.

ISO 9001 Quality & Documentation

Every bend verified for radius, position, and diameter consistency. Material traceability certificates available.

Frequently Asked Questions

What are typical tube bending tolerances?
Standard tolerance ±0.5 mm for bend radius and centerline positioning. Tighter tolerances (±0.3 mm) achievable for smaller radii and single-direction bends.
What materials can be bent?
Steel (mild, stainless, alloy), aluminum alloys, copper, brass, and titanium. Material hardness, wall thickness, and bend radius determine feasibility. Annealing available for work-hardened materials.
What is minimum and maximum bend radius?
Minimum bend radius depends on tube OD and wall thickness—typically 1.5x to 3x OD. Maximum radius is unlimited. Complex multi-plane bends require engineering review.
What causes wall thinning in tube bending?
During bending, the outer surface stretches. Mandrel support minimizes this—typical wall thinning 5–10% for properly supported bends.

Request a Quote

Provide tube specifications, bend geometry, material, and quantities. We'll analyze for feasibility and return a detailed quotation within 48 hours.

Contact Us

Accepted: STEP · IGES · DWG · SLDPRT · PDF