Servo-driven accuracy for 6″ tube and long runs

The Umprotech all-electric mandrel CNC tube bender for the US market is built for large-diameter, production-grade bending up to Ø6.0″ and 20 ft tube length. Fully servo-driven axes deliver repeatable, stackable bends with tight tolerance control for structural, hydraulic, and chassis assemblies where consistency is critical.

Mandrel support up to 3.0×D CLR

A heavy-duty mandrel package with mandrel extractor, wiper die, and pressure die assist supports centerline radii up to 3.0×D, helping control ovality, wall thinning, and flattening on tight-radius bends. The integrated anti-wrinkle system stabilizes thin-wall and high-strength tubes, even when pushing near the process limits.

Multi-radius tooling and clean flow

Multi-radius tooling lets you run multiple CLR setups on the same machine, ideal for complex parts combining gentle sweeps and tight bends. Auto-lubrication maintains mandrels, dies, and sliding elements for long tool life, consistent surface finish, and reduced manual maintenance in high-throughput cells.

3D programming, simulation, and anti-collision

The control platform provides 3D programming with simulation so operators can validate bend sequences before production. XYZ/rotation import streamlines programming from CAD or measuring systems, while anti-collision monitoring helps protect tooling, mandrel, and machine structure when handling long, heavy tubes.

Automation and high-throughput options

Boost capability with an optional booster for ultra-tight radii, plus auto loader/unloader systems for hands-off handling of long stock. A weld seam detection option keeps seam orientation under control for safety-critical, pressure-rated, and cosmetic assemblies.

*Actual performance varies with material grade, wall thickness, tooling design, and process setup.