Compact Straightening for Thin Coil
A single stage straightener flattens thin coil with one roller group. The Jingcui BSL Series handles material from 0.1 to 0.5 mm. It feeds a flat, stable strip into precision stamping lines.
This space-saving machine uses a single correction group plus two pull rollers. It delivers dependable flatness at an economical cost.

What Is a Single Stage Straightener?
A single stage straightener levels stock in one pass through one roller group. Offset rollers apply reverse bending to remove coil curvature and internal stress. Pull rollers then provide stable traction for smooth feeding.
The BSL Series uses 9 upper and 10 lower correction rollers with two Ø54 mm pull rollers. This simpler design is compact, low-cost, and easy to maintain.
Applications
- Medium-to-high precision leveling of thin coil
- 3C electronics, phone and PC accessory stamping
- Terminal, hardware, and home-appliance part stamping
- Thin copper, aluminum, stainless steel, and galvanized strip leveling
- Thin-plate leveling for appliance metal stamping of housings and fittings
Models & Sizes
| Model | Material Width | Material Thickness | Motor | Weight |
|---|---|---|---|---|
| BSL-100 | 100 mm | 0.1–0.5 mm | 1/2 HP | 200 kg |
| BSL-150 | 150 mm | 0.1–0.5 mm | 1/2 HP | 250 kg |
| BSL-200 | 200 mm | 0.1–0.5 mm | 1 HP | 300 kg |
| BSL-300 | 300 mm | 0.1–0.5 mm | 1 HP | 350 kg |
Technical Specifications
| Machine type | Single-stage high-precision straightener (one group + pull rollers) |
|---|---|
| Material thickness | 0.1–0.5 mm |
| Material width | 100–300 mm (by model) |
| Correction rollers | Ø18 mm × 9 upper / 10 lower |
| Pull rollers | Ø54 mm × 2 |
| Straightening speed | 15 m/min |
| Motor power | 1/2–1 HP (by model) |
| Weight | 200–350 kg (by model) |
| Dimensions (L × W × H) | 0.9 × 0.3~0.5 × 1.2 m (by model) |
Key Features
Consistent Flatness
No mid-run re-adjustment is needed during straightening. Flatness stays consistent from head to tail.
Oil-Free Bearings
Roller journal bearings require no lubrication. They resist wear and create no oil or grease contamination.
VFD-Synchronized Drive
A frequency converter synchronizes the machine with press speed. This keeps thin-strip feeding smooth and steady.
Dedicated Pull Rollers
Two Ø54 mm pull rollers provide stable traction. They keep thin material feeding without slipping or buckling.
Compact and Economical
The single stage straightener saves floor space and maintenance time. It offers a low operating cost for precision stamping.

Line Integration
The BSL Series works inside your straightener machine lineup. Pair it with a servo feeder for synchronized thin-strip feeding.
FAQ
What thickness does this single stage straightener handle?
It handles 0.1 to 0.5 mm thin coil. The width ranges from 100 to 300 mm by model.
How does it differ from a dual-stage machine?
It uses one correction roller group instead of two. The single-stage design is more compact and economical.
What are the pull rollers for?
Two Ø54 mm pull rollers provide stable traction. They keep thin material feeding smoothly without slipping.
Does it need bearing lubrication?
No. The roller bearings are oil-free and maintenance-free.
Request a Quote
Tell us your material thickness, width, and production speed. We will recommend the right single stage straightener for your line. Contact Jingcui today.




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