Bending rebar by hand sounds simple. One worker with a manual rebar bender can bend about 200 bars per day. But many contractors struggle with slow work, tired workers, and bars that come out the wrong angle. A rebar bending machine solves these problems fast. It gives you consistent, precise bends in seconds instead of minutes. With one operator and a machine, you can bend thousands of bars per day. Less labor. Less waste. Fewer mistakes.
Let’s do the math. Assume you need to bend 4,000 steel bars for a foundation job. One worker with a manual rebar bending machine can bend about 200 bars per day. That is 20 days of work. With a YG automatic rebar bending machine, the same job takes one day. Assume a worker costs 100perday.Yousave100perday.Yousave1,900 in labor on just one job. The machine pays for itself in months.
YG Machinery offers YG-RB40, YG-RB42, and YG-RB50 rebar benders for construction sites, precast plants, and steel shops. We also provide complete rebar processing solutions including rebar straightening and cutting machines and CNC rebar benders.
Technical Parameters of Rebar Bending Machine
| Model | YG-RB40 | YG-RB42 | YG-RB50 |
| Motor power | 3kW | 3kW | 4kW |
| Rebar diameter | 6-32mm | 6-36mm | 6-40mm |
| Round bar diameter | 6-40mm | 6-42mm | 6-50mm |
| Weight | 100kg | 240kg | 320kg |
| Dimension (mm) | 800×790×780 | 910×755×800 | 995×805×770 |
| Bending angle | 0-180° | 0-180° | 0-180° |
| Control | Foot pedal / CNC panel | Foot pedal / CNC panel | Foot pedal / CNC panel |
All models include moving wheels for easy transport and an emergency stop button for safety.
Which Model Do You Need?
| Your job type | Recommended model | Why |
| Small construction sites, residential projects | YG-RB40 | Light, portable, bends up to 32mm rebar |
| Medium precast plants, commercial buildings | YG-RB42 | Good balance of size and capacity, bends up to 36mm |
| Heavy infrastructure, bridges, industrial | YG-RB50 | Largest capacity, bends up to 50mm round bar |
The RB40 is best if you move the machine between job sites. The RB50 is for daily heavy use in a fixed shop. For producing stirrups and complex shapes, consider our CNC rebar bender which offers fully automatic operation. Tell us your typical bar size. We will recommend the right model.
What’s Included with Your Purchase
Every YG rebar bending machine comes with everything you need to start working:
- Main bending machine
- Electric motor (pure copper)
- Working disc with center pin holes
- Bending pins (multiple sizes)
- Center pins (multiple diameters)
- Foot pedal for hands-free operation
- Moving wheels (pre-installed)
- Tool kit for basic maintenance
- User manual in English
- CNC control panel (RB42 and RB50)
All accessories are made of high-quality steel. No need to buy extra parts before you start. For a complete rebar processing line, you can also pair this machine with our rebar straightening and cutting machine.
How Does a Rebar Bending Machine Work?
The steel bar bending machine works on a simple principle. A horizontal working disc rotates on a vertical axis. The steel bar is placed between the center pin and the bending pin. When the disc rotates, the bending pin pushes the bar around the center pin. The bar bends to the set angle.
The operator controls the machine with a foot pedal or CNC panel. Press the pedal. The disc rotates. The bar bends. Release the pedal. The disc stops. For CNC models, you enter the angle on the panel. The machine stops automatically at the correct angle.
One worker can operate the machine while loading and unloading bars. No special skills needed.
Key Features of Steel Bar Bender
Bends 0-180 degrees – Set any angle from 0 to 180 degrees. CNC models stop automatically at your set angle. Manual models use angle guides.
Foot pedal control – Keep both hands on the bar. Step on the pedal to bend. Release to stop. Safer and faster than hand controls.
Pure copper motor – Runs cooler and lasts longer than aluminum motors. Less downtime for repairs. This electric rebar bender is built for daily use.
Moving wheels – Four wheels at the bottom corners. This portable rebar bender can be moved around the job site by one person. No forklift needed.
Emergency stop button – Big red button at eye level. Hit it to stop the machine instantly if something goes wrong.
CNC control panel – On RB42 and RB50 models. Enter the angle, quantity, and speed. The machine runs automatically.
Sturdy steel construction – The working disc and pins are made of high-strength alloy steel. They can handle daily heavy use for years.
Applications of Rebar Bender
This electric rebar bender is used in many construction and manufacturing jobs.
Building foundations – Bend starter bars, column cages, and footing reinforcement. The RB40 is good for residential work. The RB50 handles heavy commercial foundations.
Bridge construction – Bridges require curved bars for abutments and arches. The RB50 bends 40mm rebar with ease.
Precast concrete plants – Produce standard bent bars for beams, panels, and piles. Set the CNC panel once and run hundreds of identical pieces.
Tunnel and subway projects – Curved segments need precision bent bars. The machine bends both round and ribbed rebar.
High-speed rail – Rail infrastructure requires thousands of bent bars. High volume needs high speed. The RB42 bends 36mm bars for rail ties and supports.
Steel processing shops – Process round bars, square bars, and flat bars for custom orders. For stirrup bending machine applications, the RB42 can bend 36mm rebar into various shapes including square, rectangular, and diamond.
YG Machinery also offers rebar straightening and cutting machines and thread rolling machines for complete rebar fabrication.
Whatever your project, tell us your bar size and volume. We will help you choose the right configuration.
Customer Case
A large rebar processing plant in Russia needed bending equipment that could work in sub-zero temperatures. Winter temperatures drop to -20°C or lower. Their manual bending method was too slow. Workers were struggling.
YG Machinery supplied four YG-RB50 rebar bending machines with cold climate modifications. The machines include special lubricants, cold-start modules, and sealed electrical components rated for low temperatures.
The results:
- Bending efficiency increased by 35%
- Manual workload reduced significantly
- Machines ran without downtime during winter months
- Customer placed a repeat order for expansion
The plant manager said: “The YG rebar benders exceeded our expectations. They run smoothly even at -20°C. Our production capacity has never been higher.”
Read the full Russia cold climate case study to see how our rebar bender performs at -20°C.
How to Choose the Right Steel Bar Bender
| Question | Answer | Which model |
| What is your max bar diameter? | 6-32mm | YG-RB40 |
| 6-36mm | YG-RB42 | |
| 6-50mm | YG-RB50 | |
| How many bars per day? | Under 500 | RB40 is fine |
| 500-2000 | RB42 recommended | |
| Over 2000 | RB50 for speed | |
| Do you move the machine often? | Yes | RB40 (lightest) |
| No | RB42 or RB50 | |
| Do you need automatic angle stop? | Yes | RB42 or RB50 with CNC |
| No | RB40 manual is fine |
For customers who need both straightening and bending, we recommend pairing this machine with our rebar straightening and cutting machine for a complete production line.
Still not sure? Tell us your bar diameter, daily volume, and job site conditions. We will recommend the right rebar bending machine for sale.
FAQ
Q: What sizes of rebar can this machine bend?
A: The RB40 bends 6-32mm rebar. The RB42 bends 6-36mm rebar. The RB50 bends 6-40mm rebar and 6-50mm round bar.
Q: What is the maximum bending angle?
A: All models bend from 0 to 180 degrees. CNC models stop automatically at your set angle.
Q: What is the difference between electric and hydraulic rebar bender?
A: Electric rebar benders are lighter, more portable, and cost less. Hydraulic rebar bending machines offer more bending force for larger bars but cost more and are heavier. For most construction sites, electric is sufficient.
Q: Can it bend both round bar and ribbed rebar?
A: Yes. The machine bends smooth round bars, ribbed rebar, square bars, and flat bars.
Q: Do I need special training to operate it?
A: Basic training is recommended. Most operators become comfortable within a few hours. YG provides video guides and manuals.
Q: Is the machine easy to move?
A: Yes. This portable rebar bender has four wheels. One person can roll the machine around the job site.
Q: What power supply does it need?
A: 380V three-phase power is standard. Other voltages available on request.
Q: How long does delivery take?
A: Production takes 15-25 days. Sea freight takes 20-40 days depending on destination.
Q: What is the warranty?
A: One year on main parts. Spare parts available for fast shipping.
