With the global construction industry accelerating its upgrade toward intelligent manufacturing, high efficiency, and cost reduction, traditional manual stirrup bending and single-function bending equipment can no longer meet modern engineering requirements for full-spec processing, high-precision consistency, and mass production capacity. Rebar processing factories, construction contractors, and precast component manufacturers worldwide are increasingly demanding integrated, flexible, and low-consumption automatic bending solutions to solve the pain points of low efficiency, high labor reliance, large floor occupation, and high equipment investment caused by separate small-bar and heavy-bar processing machines.
To adapt to the global trend of automated, centralized, and intelligent rebar fabrication, Henan Xinyuchuang have developed the new GTW8-20 CNC fully automatic stirrup bending machine. It innovatively combines double-line high-speed mass production and single-line heavy-duty thick rebar processing in one compact unit, covering the full range of Φ8–20mm steel bar forming requirements. This all-in-one design effectively solves the problems of repeated equipment procurement, low equipment utilization, and high operating costs, providing international customers with a more efficient, economical, and highly adaptable intelligent rebar processing solution.
<1>Wide Machining Specification Coverage & Dual Working Modes for Flexible Adaptation
- Double-line station: Processes standard stirrups of Φ8–14mm synchronously, specially designed for mass production of standard stirrups for residential buildings and beam slabs. Two finished stirrups discharge simultaneously, doubling the output capacity for small-diameter stirrups.
- Single-line heavy-duty station: Independently processes thick steel bars ranging from Φ8–20mm, meeting the demand for large stirrups of beam columns, large foundations and thick rebars for road & bridge projects. One machine covers all small and large specifications, eliminating the need to purchase two separate machines.
- Compatible with wire rod, threaded steel and cold-rolled ribbed steel. Rectangular, trapezoidal, polygonal, arc-shaped special stirrups and hook slab reinforcements can be formed in one pass, fully applicable to construction, bridge and precast component factories.
<2>High Efficiency via Double-Line Production & Reliable Heavy-Duty Single-Line Machining, Greatly Boosting Overall Output
- Accelerated double-line mode: Produces 2 standard stirrups every 3 seconds, with an hourly output of 2,200–2,400 pieces. By contrast, the single-line mode only delivers 1,100–1,200 pieces per hour, cutting the construction period for mass small stirrup processing by 50%.
- Uncompromised single-line heavy-duty performance: Equipped with high-power servo bending and cutting mechanisms, it processes Φ18/20mm thick rebars without vibration or deformation. It handles both mass orders of thin rebars and small-batch thick rebar orders, removing the requirement for an extra heavy-duty stirrup bending machine.
- Fully automated workflow: Automatic feeding, precision straightening, CNC length setting, synchronous bending, servo cutting, automatic counting and discharging enable continuous non-stop production. One single machine replaces 15–25 manual stirrup benders, requiring only one operator for supervision.
<3> High Precision with CNC Servo System for Uniform Finished Products & Reduced Rework
- Full closed-loop servo control system: Length setting tolerance ≤±1mm, bending angle tolerance ≤±0.5°. The straightening unit adopts multiple groups of self-adaptive straightening rollers, ensuring steel bar straightness ≤±1.5mm/m without scratches or damage to steel thread ribs.
- Smooth cutting surfaces free of burrs, eliminating secondary grinding. Mass-produced stirrups feature consistent side lengths and bending heights, complying with high-standard acceptance criteria for prefabricated buildings, high-speed railways and municipal works, and drastically lowering rework rates during on-site binding and pouring.
- Preloaded with hundreds of standard stirrup drawings, supporting storage of custom special-shaped graphics. One-click switching between single/double-line processing parameters; changing steel bar specifications only takes 5 seconds via touchscreen setup, with no manual mold disassembly or mechanical adjustment required for ultra-high model change efficiency.
<4> Labor & Material Savings for Lower Long-Term Operating Costs
- Sharp labor cost reduction: Traditional manual stirrup bending requires a team of at least 5–8 workers, while this machine completes all procedures with just one operator, slashing annual labor expenses by over 70%.
- Greatly reduced material waste: An intelligent length-setting algorithm optimizes head and tail scrap, cutting material loss by 5%–8% compared with manual processing. Synchronized double-line machining minimizes short rebar waste caused by frequent start-stop cycles, significantly improving steel utilization rate.
- Energy-saving, durable & easy maintenance: Segmented servo motors output power on demand, consuming over 15% less electricity than hydraulic models. The cutter adopts four-sided movable blades and double-sided usable fixed blades for easy replacement, extending service life by 4 times and lowering spare part consumption costs.
Machine frame welded with thickened steel plates; traction and bending core components made of high-wear-resistant alloy. Fully enclosed dustproof protection adapts to dusty and humid construction site environments with low failure rates and extended service life
<5> Intuitive Operation & Intelligent Safety Design for Quick Novice Proficiency
- High-definition Chinese touchscreen with visual graphic operation, parameter storage and memory functions. Direct template retrieval for specification changes; zero-experience workers can operate proficiently within 3 minutes.
- Comprehensive intelligent protection system: Emergency stop buttons, automatic shutdown upon overload, automatic alarm for steel jamming, wire break protection. Independent sensors for double-line feeding ensure abnormal feeding on one line does not affect the other, delivering superior equipment safety.
- Automatic material receiving buffer platform neatly collects finished products without manual collection, lowering labor intensity and preventing finished product deformation from collision.
<6> Small Footprint for High Site Utilization & Compatibility with Diverse Processing Scenarios
Integrating both high-speed double-line and heavy-duty single-line production capabilities into one unit, it occupies 40% less floor space compared with purchasing a separate double-line small-spec stirrup bender plus a single-line thick rebar bending machine. Ideal for small & medium steel processing plants, temporary on-site processing yards of construction projects, and supporting precast component production lines.
<7> Application Scenario Advantages
- Double-line mode (Φ8–14mm): Mass rapid processing of standard stirrups for high-rise residential buildings, basements and beam slabs.
- Single-line mode (Φ8–20mm): Large stirrups for factory columns, bridge coping beams, bearing platforms, tunnels and heavy precast components.
One machine covers both small and large orders, enabling flexible mode switching across off-peak and peak seasons to maximize equipment utilization.
