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A detailed buying guide: how to choose a hydraulic pipe bender.
This section covers hydraulic pipe benders with a hand or foot pump: open- and closed-frame models for 1/2"–2", 1/2"–3" and 1/2"–4" pipes with 10–25 t of force and a set of interchangeable bending formers. They are used to bend steel water/gas and electrical conduit pipes up to 90° in heating, plumbing, electrical installation, steel structures and agricultural work. Hydraulics let you bend thick-walled pipes without a power supply or heavy physical effort, so a bender suits plumbers, welders and construction crews. For the working principle, see what hydraulic tools are and how they work.
Open-frame benders let you place the pipe from above and suit pipes that are already installed, while closed-frame models are stiffer and more accurate. Models with a built-in hand pump are self-contained, while systems with a separate foot or hand pump free your hands to hold the pipe. Read how to choose a hydraulic pump and power source.
Bending force is usually 10–25 t: 10–12 t is enough for 1/2"–2" pipes, 16–20 t for 3" and 25 t for 4". Choose the force with a margin, since thick-walled pipes require more effort. See how to choose hydraulic tool load capacity and working force.
Check the range of pipe diameters in inches and millimetres and the maximum wall thickness, usually 2.5–5 mm. Conventional benders are designed for round steel pipes, while profile or thin-walled pipes require special formers. Read how to choose electrical cable, conduit, trunking and connectors.
The ram stroke, usually 200–250 mm, determines the maximum angle, which reaches 90° on large diameters. An angle scale on the ram helps repeat the same angle on several pipes. See how to choose a hydraulic cylinder or ram.
Benders come with 6–8 formers, one for each pipe diameter, and the former must match the pipe to prevent flattening at the bend. Check the availability of extra formers and support rollers. See how to choose spare parts for pneumatic and hydraulic tools.
Hydraulic pipe benders weigh 25–90 kg, so a tripod stand or wheeled trolley and a sturdy case matter. For small-diameter copper and thin-walled pipes, a mechanical hand bender is often enough. Read what hand tools are and how to choose them.
The relief valve limits pressure and protects the cylinder, while the release valve retracts the ram after work. On systems with a separate pump, check the quality of the high-pressure hose and quick coupler. See how to choose hydraulic hoses, couplers, valves and pressure gauges.
During bending, the pipe can jump out of the former, so secure the support rollers firmly in the correct holes and do not stand in line with the pipe ends. Never exceed the rated diameter and wall thickness. Read how to use hydraulic tools safely.
Use the hydraulic oil specified by the manufacturer, check the level regularly and keep the ram clean of dust and dirt. Loss of force or oil leaks are a sign that the seals need replacing. See how to store and maintain hydraulic tools.
At ToolsArmenia you can compare hydraulic pipe benders by force, pipe diameter, frame type, former set and weight and choose the right model for your jobs.
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