Used Profile Bending Machines for Sale — 229

Profile Bending Machines for Full Design Freedom

The challenge of bending profiles is to be able to bring it selectively and exactly into a desired shape. Hollow profiles, like pipes, have the risk associated with them that they can buckle. A kink in a pipe will ruin the workpiece as it cannot be repaired. A profile bending machine contains a clever mechanical system that prevents this from happening and to produce precise radii. There are several different types of profile metal bending equipment. Mandrel bending machines are used for thin-walled pipes with a diameter of only a few centimetres. These machines are made out of a mandrel, a bending tool, a bending head and a counter bearing. During mandrel bending, the profile to be bent is pushed over the mandrel and fixed between the bending tool and the clamp. The mechanic or hydraulically operated bending head turns along the bending axis and thereby, shapes the workpiece. The counter bearing is used as a support for the pipe during the bending process.

Types of Profile Bending Machines

The demands of the bending process are dependent from the bending radius, the strength of the wall and the material. The more brittle the material, the thinner the walls and the smaller the bending radius, the more demanding the bending process will be. The mandrel bending process is most suited to produce high-quality small bending radii. Hardened case-hardened steel is the only material that the bending tool can be made out of. The addition hardening stage is necessary, to guarantee that the working-life of the tool is long enough. The tool can compress or buckle if not hardened, which leads to the formation of creases. During the bending process, these creases have a formative impact on the workpiece, which would render it useless. In addition to using hardened steel, the build up of creases can be prevented by using a crease smoother or by pre-heating the profile. A different tool has to be produced for all areas of application, and therefore mandrel bending is most suited for the production of series and standard components.

Pyramid bending rollers are particularly suited for the individual production of profile radii. They are generally made out of three rollers that are driven towards one another. The desired bend in the profile produced depends on the size of the outer rollers and the depth of the middle roller. The rollers turn and can produce complex bent pipe workpieces. Pyramid bending rollers are commonly used by automobile workshops and plumbers to produce individual profiles like pipes and exhaust pipes. The pyramid bending rollers are available as complete machining centres, which can produce complex pipe and profile in the desired quantity. The company BILGER has a particularly cheap and flexible profile bending machine for sale, which can be used for small companies, assembly work and entrepreneurs. It combines the flexibility of the pyramid bending rollers with the efficiency of the mandrel bending machine. The small bending machine called “Variobieger” can, with a choice of standard tools, be quickly built to suite the requirements of the operator.

Sizes and Types of Profile Bending Machines

The types of motors and operating systems for profile bending machines are designed depending on the demands of the profile. Small and medium sized pipes and rods can be produced using purely mechanical systems like levers, knuckle joint presses and spindles. These profiles are regularly produced depending based on visual judgement and this is usually sufficient for non-critical applications. Half-mechanical bending machines work with manually operated hydraulic motors. With the help of a hand pump, the operator can use the hydraulic system to apply a large amount of targeted force onto the profile. This process is most commonly used for assembly work. It allows the production of individual bends in the profile without requiring electricity. Automatic and fully hydraulic motors are used for metal bending machines. These are available for profiles of all sizes. Particularly large bending machines can be found alongside track and pipeline constructions. The necessary bends are produced on site by mobile stations.

Working with Profile Benders

Profiles are required in the context of a construction. They are an element made up of several components, are used to produce a pre-developed product. The individual production of profiles requires the same skill set, which is found in the occupation profile of those who finish products. The individual production of profiled pieces can also be learned by talented, but otherwise unskilled, workers. The bending of profiles is relatively safe. However, a safety briefing before using a profile bending machine is useful. Mass produced components are fully automatically produced on profile bending machines such as aluminium profile bending machine or upvc profile bending machine. Just like every other production machine, the only tasks required are loading and unloading. Additionally, these products require regular quality control. In order to not have to teach skilled workers how to handle the tools, it is recommended to prepare templates that during the quality control of profiles. The wear and tear on bending tool is minimal. However, the high amount of force, which is required to correctly bend profiles, can drastically affect the counter bearings of the machine. These are usually designed to be adjustable. Strict quality control measures can identify the need for adjustment early enough to prevent wasting products and the requirement for post-production.

Profile Bending Machines Manufacturers

BILGER, GRANGIER CONSTRUCTEUR, O+P, and NUOVA produce good products for workshops and assembly work. Metal bending machines suppliers ROUNDO, KNUTH, VOORTMANN and THOMAN are recommended for industrial bending machines. Special machines, like those for large applications like pipelines, are available from SUPERIOR and GENERAL DISCILLING.  Get access to the largest selection of metal bending machines for sale and to the lowest sheet metal bending machine price on TradeMachines.