The process of Tube Bending, and Tube Manipulation, is carried out using several different bending methods, and each process has its own benefits.

It’s a suitable solution for a wide range of products, such as everyday safety items like security barriers, crush rails, and signage, through to heavy duty large bore thick wall pipes.

Tube manipulation pieces

What makes tube bending unique at Angle Ring?

At Angle Ring, we have the facility to bend tubes with 3 different bending techniques. The processes we use include:

  • – Cold Section Bending, 3 Roll. 6mm Ø up to 508mm Ø
  • – Tube Manipulation up to 127mm Ø
  • – Induction Bending up to 914mm Ø

We have developed tooling for our machinery that enables us to perform tight radius bends in solid round bar, tube, pipe, and circular hollow section, for both one-off requirements as well as large tube bending projects.

Using tube manipulation bending techniques, the tooling is designed to cause minimum marking to the material surface, a benefit on dull and mirror polished surfaces of tube. Plus, we have a variety of tube manipulation machines at Angle Ring mean we can bend ratios of 2D upwards and up to 127mm Ø.

The types of circular profiles we can bend include:

  • – Solid Round Bar
  • – Tube
  • – Pipe
  • – Circular Hollow Sections

We are also able to accommodate most other hollow sections available, regardless of whether these are square, rectangular, elliptical, or anything more unique!

Our unique service means we are able to bend large capacities, as highlighted in the works we did for the Tay Whale in Dundee. We provided the tube bending for 2,457 individual parts from Duplex stainless steel hollow tubes.

Our tube bending handywork was also featured on the pollination project in Birmingham which has been shortlisted in the 55th Structural Steel Design Awards (SSDA).

What sectors is tube bending suitable for?

You can find tube bending within many different sectors, but most commonly it is requested by those working within the Architectural and Offshore sectors.

Where required, we can utilise methods of tube bending that minimises markings, which is often an important requirement for architectural metalwork due to its more visual and aesthetically pleasing nature.

Architectural projects also require a sense of complexity, which we can provide, where each individual component provided involves finesse to precise specifications with minimal sectional distortion.

The Offshore sector includes projects such as Oil & Gas, Marine and Renewables. Tube Bending is a common requirement for these because the metal that can be bent comes from a variety of materials such as carbon steels and stainless steels, to nickel alloys, duplex, aluminium, chromoly and titanium.

As we work with exacting specifications demanded by the industry, we can offer a high quality, dedicated service to both end users and sub suppliers.
Tubing that has been manipulated

Is the tube bending process from hot or cold bending?

Well, both actually!

Induction Bending (also known as hot bending) requires a single pass through our machines and ensure the section is bent giving minimal deformation.

At Angle Ring, we operate three induction bending machines which we have designed and built in house. This allows us to offer a controlled hot bending technique through the application of localised heat via copper induction coil. This results in minimal ovality and wall thinning.

Hot Bending can be used for sections, tubes, and hollows. This method allows us to form bends to a single or multiple radii, or even create an ellipse. It also allows us to bend a circular hollow section of up to 914mm in diameter.

Cold Bending, 3 roll, (or section bending) is a quicker way of bending materials, meaning that large capacities can be turned around quickly and economically, regardless of size, intricacy, or volume. Our cold bending tooling for circular sections goes from 6mm Ø up to 508mm Ø.

Tube Manipulation is cold method of bending utilising a specific mandrel supporting the inside of a section, along with a matching wiper in order to create bends at a small radius with minimal deformation, up to 127mm Ø.

At Angle Ring, we have been delivering section bending services, using cold rolling and cold bending techniques, since we started our business over 70 years ago!
Tubing that has been manipulatedUnsure of the best tube bending method for your requirements?

Whether you require large diameter tube manipulation, a high-volume job that requires intricacy, or a smaller job that needs to be turned around quickly, our team of skilled sales engineers are on hand to provide advice and quote.

Contact us on 0121 557 7241 or and let us help you explore the most appropriate tube bending technique for your next project.