A precast concrete plant in São Paulo, Brazil was struggling to keep up with demand. The plant produced concrete beams, panels, and piles for residential and commercial construction. Their manual rebar bending process was the bottleneck. They needed an automatic rebar bender.
The production manager, Carlos, contacted YG Machinery. After discussing his bar sizes and daily volume, YG recommended two YG-RB42 rebar bending machines with CNC control panels.
The results:
- Each machine bent 1,500 bars per day. Two machines produced 3,000 bars daily – nearly four times the old output.
- Labor was reduced from four workers to two. The plant saved $800 per week in wages.
- Bent bars were consistent. No rework. No wasted material.
- The machines paid for themselves in less than five months.
Carlos said the YG rebar benders changed their production completely.


Customer Background
The precast concrete plant in São Paulo manufactures concrete beams, panels, and piles. Their customers are residential and commercial construction companies across Brazil.
Demand was growing. The plant had contracts to supply bent rebar for multiple projects. But they could not keep up.
The bottleneck was rebar bending. Every beam, panel, and pile needs bent rebar. Without enough bent bars, the concrete casting line had to wait. Delays were costing money.
Manual Rebar Bending Was the Bottleneck
The plant employed four workers to bend rebar by hand using manual rebar bending machines. The numbers did not add up.
Each worker could bend about 200 bars per day. Total daily output was 800 bent bars. But the plant needed 2,500 bars per day to meet project deadlines.
The gap was huge. 800 bars made. 2,500 bars needed. Every day, 1,700 bars were missing.
To catch up, the plant paid overtime. Workers stayed late. They came in on weekends. Overtime wages were high. Workers were tired. Tired workers make mistakes.
Bent bars were inconsistent. Some had the wrong angle. Some had the wrong shape. Bad bars had to be reworked or thrown away. More wasted time. More wasted material.
Carlos, the production manager, knew he needed a faster solution. But he also worried about budget. A fully automated CNC bending line was too expensive.
He started looking for an electric rebar bender that could speed up production without breaking the bank.
Why Manual Rebar Bending Could Not Keep Up?
| Metric | Manual (4 workers) | What the Plant Needed |
| Bars per day | 800 | 2,500 |
| Output gap | – | 1,700 bars short daily |
| Consistency | Inconsistent | Every bar must match |
| Overtime cost | High | Zero |
Carlos calculated the cost. Overtime alone was eating into profits. Rework wasted material. Late deliveries risked losing contracts.
He needed a steel bar bending machine that could bend 16mm, 20mm, and 25mm rebar fast and accurately.
For complete YG-RB42 technical specifications, check our product page.

How Carlos Found the Right Automatic Rebar Bending Machine?
Carlos searched online for an automatic rebar bender. He found YG Machinery’s website. He saw the YG-RB42 model.
The machine could bend 6-36mm rebar. That covered his 16mm, 20mm, and 25mm bars. The CNC control panel meant he could set the angle once and the machine would stop automatically at the right position. The foot pedal control let operators keep both hands on the bar.
He submitted an inquiry. Our sales manager replied within a few hours. They discussed bar sizes, daily volume, and budget.
The sales manager recommended two YG-RB42 machines. Two machines would produce 3,000 bars per day – more than the 2,500 bars needed. One machine would not be enough. Three machines were unnecessary. Two was the right number.
Carlos placed an order for two automatic rebar benders.
YG-RB42 Electric Rebar Bender
Here is what the plant received:
| Specification | YG-RB42 |
| Motor power | 3kW |
| Rebar diameter range | 6-36mm |
| Round bar diameter range | 6-42mm |
| Bending angle | 0-180° |
| Weight | 240kg |
| Dimension | 910×755×800mm |
| Control | Foot pedal + CNC panel |
This electric rebar bender has a pure copper motor that runs cooler and lasts longer. The foot pedal lets operators keep both hands on the bar. The CNC control panel automatically stops the machine at the set angle. Moving wheels make it easy to reposition on the shop floor.

How the Automatic Rebar Benders Solved the Plant’s Problems?
The two YG-RB42 machines arrived at the São Paulo plant within 45 days. YG provided online training videos and remote setup support. Carlos assigned two workers to operate the machines.
The results came fast.
Output increased nearly four times. Each machine bent 1,500 bars per day. Two machines produced 3,000 bars daily. The old method with four workers produced only 800 bars. The plant now had more than enough bent bars for the concrete casting line.
Labor costs dropped. The plant went from four workers to two. Carlos saved $800 per week in wages. No more overtime. No more weekend work.
Quality improved. Bent bars were consistent. Every bar had the same angle. The CNC panel stopped the machine at exactly the set angle every time. No rework. No wasted material.
Deadlines were met. The plant caught up on all delayed orders. New projects started on time. Carlos cancelled all overtime.
The machines paid for themselves. Carlos calculated the savings. The two YG-RB42 rebar bending machines paid for themselves in less than five months from labor savings alone.
Results Summary
| Metric | Before (4 workers manual) | After (2 workers + 2 machines) | Improvement |
| Daily output | 800 bars | 3,000 bars | 275% increase |
| Labor | 4 workers | 2 workers | 50% reduction |
| Weekly wage cost | ~$1,600 | ~$800 | $800 saved/week |
| Consistency | Inconsistent | Perfect | No rework |
| Overtime | Yes | No | Eliminated |
For a complete rebar processing line, pair your bender with a rebar straightening and cutting machine.


Customer Feedback from Brazil
Carlos told us:
“The YG rebar benders changed our production completely. We were always behind schedule. Now we are ahead. The foot pedal control makes it easy, and the bends are always right. I wish we bought them years ago.”
He was so satisfied that he has since ordered a YG rebar straightening and cutting machine to complete his rebar processing line. Now the plant can straighten, cut, and bend rebar with YG machines from start to finish.




