| Portable Rebar Bender | On-site repair work, small construction projects, foundations, and reinforcing bars that cannot be transported to a workshop. | Usually 6–16 mm for standard steel bar; some heavy-duty models handle bars up to approximately 20–25 mm. | Commonly 0°–180°, depending on the selected stop or control system. | Approximately 15–30 bends per minute, depending on bar diameter and bend angle. | About 1.5–3 kW, usually with single-phase or compact three-phase power options. | Approximately 40–120 kg. | Easy to move, quick to set up, and suitable for locations without a dedicated fabrication shop. | Check carrying handles, power supply, bending die size, and whether the rated capacity applies to high-strength rebar. |
| Stirrup Bending Machine | Production of rectangular, square, U-shaped, and closed stirrups for beams, columns, walls, and cages. | Typically 6–16 mm for single bars; many industrial models can process larger diameters with reduced speed. | Usually programmable from 0°–180° with repeatable angle control. | Approximately 20–40 bends per minute; output depends on the number of bends per stirrup. | About 3–7.5 kW. | Approximately 250–900 kg. | Consistent stirrup dimensions, fast repetitive production, and reduced manual measuring. | Look for automatic length stops, programmable bend sequences, adjustable rollers, and compatible stirrup dimensions. |
| Automatic Rebar Bending Center | High-volume production of stirrups, links, open shapes, closed shapes, and multi-bend reinforcing components. | Commonly 6–16 mm for high-speed processing; larger ranges are available for specific production requirements. | Computer-controlled angles, commonly up to 180° or more depending on the configuration. | Approximately 30–60 bends per minute or several hundred shaped pieces per hour, depending on product geometry. | About 7.5–30 kW, including feeding and auxiliary systems. | Approximately 1,500–6,000 kg. | High repeatability, automatic feeding, programmable shapes, and lower labor requirements for large production volumes. | Evaluate software functions, rebar straightness requirements, tooling changeover time, service access, and floor-space needs. |
| Heavy-Duty Rebar Bending Machine | Large-diameter reinforcement for bridges, precast elements, industrial buildings, tunnels, and heavy structural work. | Typically 16–32 mm; specialized configurations may process bars above 32 mm. | Usually 0°–180°, with mechanical or digital angle stops. | Approximately 8–20 bends per minute, depending on bar size, steel grade, and angle. | About 5.5–15 kW. | Approximately 600–2,000 kg. | High torque, rigid construction, stable bending accuracy, and suitability for large reinforcement bars. | Confirm maximum bending moment, die compatibility, foundation requirements, and the machine’s capacity for high-yield-strength steel. |
| CNC Rebar Bending Machine | Custom bar shapes, complex reinforcement schedules, prefabricated cages, and projects requiring digital production records. | Often 6–25 mm, depending on whether the machine uses single-bar or multi-bar processing. | Programmable multi-angle bending, commonly covering 0°–180° per bend. | Approximately 15–45 bends per minute, depending on shape complexity and handling time. | About 5.5–22 kW. | Approximately 800–3,500 kg. | Accurate repeat production, recipe storage, reduced setup errors, and compatibility with digital bending schedules. | Check controller usability, file-import capability, backup procedures, calibration functions, and operator training requirements. |
| Multi-Function Rebar Bender and Cutter | Small and medium fabrication yards that need both bar cutting and bending from one equipment setup. | Commonly 6–25 mm for bending; cutting capacity varies by machine and steel grade. | Typically 0°–180° for bending operations. | Approximately 10–25 bends per minute, with separate cutting-cycle limits. | About 3–7.5 kW. | Approximately 250–800 kg. | Saves floor space, combines two basic operations, and can reduce equipment investment for smaller workshops. | Compare the independent capacities of the cutting and bending functions rather than relying only on the combined rating. |
| Spiral and Ring Bending Machine | Circular rings, spiral reinforcement, circular columns, piles, tanks, manholes, and curved structural components. | Typically 6–16 mm for fast spiral production; some machines handle bars up to approximately 20–25 mm. | Continuous radius control or programmable ring and spiral diameters. | Approximately 10–30 m of shaped bar per minute, depending on diameter, pitch, and bar size. | About 3–15 kW. | Approximately 500–2,500 kg. | Produces consistent circular geometry and can create continuous spirals with adjustable pitch. | Verify minimum and maximum bending radius, spiral pitch range, coil or straight-bar feeding method, and changeover tooling. |
| Three-Roller Rebar Bending Machine | Large-radius arcs, circular segments, curved beams, and reinforcement requiring gradual forming rather than sharp bends. | Commonly 10–32 mm, with capacity determined by roller diameter, spacing, and drive torque. | Continuous radius adjustment rather than fixed-angle bending. | Approximately 3–12 m of curved bar per minute. | About 4–15 kW. | Approximately 500–2,500 kg. | Suitable for smooth curves and adjustable radii with relatively low risk of creating sharp kinks. | Check minimum bend radius, roller adjustment method, straightness of the finished curve, and available roller sets. |