Industrial sourcing · China to Europe

Buyer-firstOpen route · visible proof

Buyer guide · Metal & CNC

CNC tube bending machine from China

A tube bender's capacity is a diameter, a wall thickness and a bend radius together, and listings quote only the diameter, so two machines with the same number can bend very different tubes.

Ask about this machine ↗Where the numbers come from

Written and listings checked 30 September 2026. Every figure on this page names its source.

What you are actually comparing.

Two quotes, one machine name

What hides inside the price

Diameter, wall and radius

Ask the tightest centreline radius at the largest diameter and your wall, in your material. A diameter alone is one third of the capacity.

Tooling per size

Each tube size and radius needs its own bend, clamp and pressure dies, often a wiper and mandrel too. Ask which sets are in the price.

Mandrel and booster

Thin wall stainless or aluminium at a tight radius wrinkles or flattens without a mandrel and a pressure die booster. Ask whether both are fitted and driven.

Hydraulic or servo bend

A hydraulic bend arm is cheaper and strong. All servo repeats angles more easily. Ask which axes are servo: feed, rotation, bend.

Stacks and software

A two stack head holds two radii for one part. Ask whether the software imports your XYZ or bend data, and compensates springback by material.

Decode the model code.

The number in codes such as DW38CNC or 89CNC is usually the largest tube outside diameter in millimetres, in mild steel. The code does not state the wall thickness or radius at that size.

DW89CNC: 89 mm maximum outside diameter.
38CNC: 38 mm. 89 / 38 = about 2.3 times the diameter, a different class of frame and tooling.

Before you ask for a price.

Send these with the enquiry. Without them, any number a factory gives you is a guess dressed as a quotation.

Every tube you bend: outside diameter, wall, material, and whether it is round, square or oval.
Tightest centreline radius per tube, and how many radii appear in one part.
Three part drawings or bend data files with tolerances on angle and length.
Longest straight tube to be fed, which sets the machine's length behind the head.
Annual volume, which decides between one head, two stacks or a double head machine.

Turn the claim into a demonstration.

Require this	A pass looks like
After a warm-up, bend your hardest tube, thinnest wall at tightest radius, in your material.	No wrinkles inside the bend, ovality and wall thinning inside the limits on your drawing.
Bend ten identical parts in a row and check each on a fixture or measuring arm.	Angles and lengths repeat within your tolerance from first to tenth.
Enter a new part from your data file and let the software correct for springback.	Second part within tolerance after one correction cycle.

The documents that must arrive with it.

EU Declaration of Conformity citing 2006/42/EC, or Regulation (EU) 2023/1230 from 20 January 2027, with EMC 2014/30/EU and the standards applied.
Manual in your language with the capacity table by diameter, wall and radius.
Tooling drawings for every set supplied, and hydraulic and electrical diagrams.

The one people forget. The tooling drawings. Your next tube size needs new dies, and without drawings of the mounting, only the original seller can make them.

When this is the wrong machine.

Buy something else if

Named, not hedged

You need large sweeping arcs in tube or profile, such as handrails and frames.

A section or roll bender, which is a different process; four of the twenty entries were these under the same name.

You bend a few simple tubes a week to a loose angle.

An NC hydraulic bender or a used machine; CNC axes only pay back at volume.

Where the numbers come from.

We name the kind of source, how many and when, and never the factory. Listed prices are asking prices, not landed cost. Where we do not hold a fact we say so: that is a GAP, not an estimate.

Listings · 10Ten CNC tube bender listings, checked September 2026, asked from US$3,000 to US$50,000. The two naming an 89 mm machine asked US$26,999 and US$31,000 to US$32,000; the one naming 38 mm asked US$14,700 to US$14,800. Asking prices, not landed cost.
Listings · 20Across twenty entries on two search pages, none stated wall thickness or centreline radius in its summary, and four were section or roll benders.
Arithmetic89 / 38 = about 2.3 times the tube diameter between the two sizes named.
GAPGAP - no supplier quotations logged for this machine yet. Three to five quotations for one configuration would give a real price spread.

Related machines.

Tube laser cutting machine. Choose a tube laser cutting machine when holes and end cuts are the bottleneck before bending.
CNC press brake. Choose a CNC press brake when most parts are folded from sheet rather than bent from tube.

Every machine we source in this area is on the Metal & CNC page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.

Straight answers

Questions buyers ask about this machine.

Chinese vs European CNC tube bending machine: what differs?+

Servo drives and controls can match. The gap tends to be software, springback data and tooling service.

What goes on a CNC tube bender inspection checklist?+

The three tests above, tooling sets counted against the order, and servo nameplates against the invoice.

What CE documentation does a CNC tube bender need?+

A Declaration of Conformity naming its standards, the technical file behind it, and a manual in your language. A CE mark on a brochure proves nothing.

Who is the EU importer of a tube bender?+

If you import it yourself, you are. You check the documents and put your name and address on the machine or its papers.

Contact

Tell us what you need.

Send a machine, a quotation you want checked, or a question. We reply with what we would look at first.