Independent machinery sourcing · Evidence

tube bending machine

Tube Bending Machine Sourcing is an independent sourcing partner. We collect material grade, section, wall thickness in millimetres, centre-line radius, quantity and destination, then request factory quotes for a dedicated tube bending machine. We do not manufacture benders, keep warehouse stock, or present a factory as already inspected. Published diameter rows on an electric-family datasheet do not prove that a square tube or a hydraulic tube bending machine will hold the same angular accuracy.

Request Factory Quotes
CNC tube bender with mandrel and clamp die around a steel tube on a metalworking floor

Trial sequence

  1. Representative sample

    Send the actual feedstock: material grade, round or square section, wall thickness, bend radii, and incoming length. A short coupon that omits later-plane bends will not expose loading or interference limits.

  2. Demonstration

    Agree whether the run is at the supplier or after installation, who records wrinkling, thinning and springback, and whether the program includes the full sequence from raw-tube loading to finished-part removal.

  3. Acceptance record

    Pass criteria stay on the factory contract. They should cite the drawing, angular accuracy in degrees, and the tooling set used, not an unnamed photograph of a bent tube.

Site interface register

A tube bending machine inquiry is comparable only when electrical, utility and control facts sit in the first brief. Missing three-phase supply or work envelope is a common reason two factory prices cannot be lined up. Public axis-count tables are questions, not an installed PLC interface promise.

Connections to confirm
Interface Buyer input
Electrical Voltage, phase and frequency for servo or hydraulic drives, plus connected load in kW if known.
Utilities Compressed air demand, cooling water or oil-cooler flow, and extraction if mandrel lubrication produces mist.
Controls PLC interface, program backup method, and any handshake with an upstream cut-off saw or downstream fixture.

Application boundary for tube bending machine inquiries

Base machine

  • Bender frame, listed axes, and the clamp, pressure and wiper dies that the supplier marks as inside the machine boundary.
  • Standard mandrel set only for the section and wall thickness named on the RFQ, if the quote marks those tools as included.

Questions that change a tube bending machine quote

What material, section and bend radius define the tube trial?
Material entering the machine
Name grade, heat condition, outside dimension and wall thickness in millimetres. A mild-steel coupon does not stand in for stainless or high-strength tube on the same tooling.
Required output
State throughput as parts per hour only with the number of bends, changeover assumptions and the duty cycle of the first-award family. Nominal speed without feedstock is not a validated output.
Duty cycle
Record whether the cell runs one SKU all shift or several radii with tool changes. Heat at the hydraulic pack and mandrel wear follow that schedule, not a single brochure cycle time.
Which responsibilities remain with the equipment supplier and buyer?

The factory confirms feasibility, lists mandrel, wiper and clamp tooling per part family, and writes FAT or SAT methods. The buyer owns the drawing, representative samples and the commercial award. Tube Bending Machine Sourcing organizes comparable briefs; we do not sign acceptance. See complete tube drawing notes and loading access checks.

Split machine, delivery and site costs before you rank factory quotes

A headline price that omits stack tooling, freight or commissioning cannot be compared with a complete cell. Optional budget and supplier preference can travel with the same requirement text. No numerical saving claim is published without comparable quotations.

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