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A steel bar straightening and cutting machine is a cornerstone of any rebar processing operation. Whether you run a construction site rebar yard, a precast concrete plant, or a dedicated rebar processing center, the right straightening and cutting machine determines your throughput, material utilization, and labor efficiency.
Henan Creare manufactures 10 models of straightening and cutting machines, ranging from compact Φ4-12mm units to heavy-duty Φ5-16mm industrial systems — including CNC-controlled, dual-line, and scrap-rebar variants. This guide breaks down every type so you can make an informed decision.
How a Steel Bar Straightening & Cutting Machine Works
The process follows three stages:
- Feeding: Coiled rebar (wire rod) is loaded onto a pay-off rack and fed into the machine through guide rollers.
- Straightening: The rebar passes through a series of rotating straightening rollers (typically 5-7 rollers in a staggered arrangement) that remove the coil curvature, producing perfectly straight bar.
- Cutting: A flying shear cutter travels with the moving bar and cuts it to the preset length. The cut pieces are collected on a discharge rack.
Modern CNC models automate the entire process: you input the desired length and quantity, and the machine runs unattended until the batch is complete.
Type 1: Standard Automatic (SC 4-12 & YGT4-12)
| Model | Capacity | Best For |
|---|---|---|
| SC 4-12 | Φ4-12mm | General construction, small-medium workshops |
| SC 4-12 MINI | Φ4-12mm | Space-constrained job sites, mobile operations |
| YGT4-12 | Φ4-12mm | Cost-effective alternative for daily rebar prep |
These are Creare’s entry-level automatic models. The operator sets the cutting length mechanically or via a simple digital counter. The machine automatically feeds, straightens, and cuts until stopped. Ideal for workshops processing 2-10 tons of rebar per day.
Type 2: CNC-Controlled (SC 4-12 CNC-H & SC 4-14 CNC-H Series)
CNC models add a digital control panel that allows the operator to program:
- Cutting length (with ±1mm precision)
- Number of pieces per batch
- Multiple length sequences in one run
- Automatic stop when batch is complete
| Model | Capacity | Key Feature |
|---|---|---|
| SC 4-12 CNC-H | Φ4-12mm | Entry-level CNC, compact footprint |
| SC 4-14 CNC-H | Φ4-14mm | Larger capacity, medium workshops |
| SC 4-14 CNC-H SINGLE | Φ4-14mm | Independent single-line operation |
| SC 4-14 CNC-H DOUBLE | Φ4-14mm | Dual-line = double output |
| SC 4-14 CNC-H KING | Φ4-14mm | Flagship model, maximum durability |
The CNC-H DOUBLE deserves special mention: it runs two rebar lines simultaneously, effectively doubling your throughput with a single machine. For high-volume precast plants, this is often the most cost-effective choice.
The CNC-H KING is the top-tier model with upgraded bearings, hardened rollers, and a reinforced frame for 24/7 continuous production.
Type 3: Heavy-Duty Large Diameter (SC 5-16)
When your projects use Φ14-16mm rebar — common in heavy infrastructure, bridges, and high-rise buildings — the SC 5-16 is the right choice. It handles Φ5-16mm with more powerful straightening rollers and a larger cutting shear. The heavier frame and higher motor power ensure consistent performance on thick rebar that would stall a Φ4-12mm machine.
Type 4: Scrap Rebar Straightening (SC 4-14 SSB)
A unique machine in Creare’s lineup: the SC 4-14 SSB is specifically designed for used, bent, and scrap rebar. It can take previously bent reinforcement bar, straighten it back to usable condition, and cut it to length. This is invaluable for:
- Rebar recycling operations
- Construction sites reusing formwork rebar
- Demolition contractors recovering steel
The SSB features reinforced entry guides to handle kinked and bent bar, and extra-powerful straightening rollers to remove severe deformations.
How to Choose: Decision Flowchart
- What’s your maximum rebar diameter? → Φ12mm or below: SC 4-12 series. Φ14mm: SC 4-14 series. Φ16mm: SC 5-16.
- What’s your daily volume? → Under 5 tons: standard automatic. 5-15 tons: CNC single-line. 15+ tons: CNC dual-line or KING.
- Do you process scrap rebar? → Yes: SC 4-14 SSB.
- Space constraints? → Tight space: SC 4-12 MINI.
- Budget-sensitive? → YGT4-12 offers core functionality at lower cost.
Key Takeaways
- Standard models (SC 4-12, YGT4-12) are sufficient for most job sites
- CNC models pay for themselves through labor savings and precision at 5+ tons/day
- Dual-line (DOUBLE) doubles output for high-volume precast plants
- SSB scrap model enables rebar recycling revenue
- All Creare machines are factory-direct with OEM and custom configuration available
Contact Creare for a personalized recommendation based on your project’s rebar specifications and daily volume.
