High Precision Decoiler Straightener GL (0.1-1.5mm)

Integrated Uncoiling & Leveling for Thin-Gauge Precision Stamping

The SUNRUI GL series is a high precision 2-in-1 decoiler straightener designed for manufacturers processing thin-gauge metal coils from 0.1mm to 1.5mm. By combining coil unwinding and precision leveling in a single compact unit, it eliminates the need for separate machines, reduces floor space, and minimizes material handling between processes.

Engineered for Precision

The straightening section features pneumatic pressure adjustment on upper and lower rollers, combined with a worm gear fine-tuning mechanism for rapid, accurate straightening point positioning. This ensures consistent flatness across the full coil width—critical for progressive die stamping of precision components.

Built for Reliability

Japanese magnetic contactors and electronic components extend service life and ensure stable operation. The frequency conversion speed control system allows precise synchronization with downstream servo feeders and stamping presses, while the automatic electric system provides excellent operational safety protection.

Ideal for Precision Industries

The GL series is widely used in electronics components, automotive sensors, computer hardware, connectors, terminals, and precision hardware stamping applications—where material flatness directly impacts part quality, die life, and production consistency.

The result: consistent material flatness, reduced scrap, extended die life, and improved first-pass yield across your stamping operation.

The GL series decoiler straightener is the first stage in a complete metal stamping line. It loads the coil, unwinds the strip, and delivers flat, consistent material to downstream equipment—straighteners, servo feeders, and stamping presses.

Common Applications:

• Electronics & Computer Components: Connectors, terminals, computer housings, EMI shields, and precision contacts

• Automotive Sensors & Safety Components: Sensor brackets, airbag components, and precision mounting hardware

• Precision Hardware: Hinges, locks, fasteners, handles, and decorative hardware

• Saw Blades & Cutting Tools: Saw blade stamping, knife blades, and cutting tool blanks

• General Thin-Gauge Stamping: Any application requiring 0.1-1.5mm material with tight flatness tolerances

Typical Stamping Line Configuration:

Step-1: High precision decoiler straightener, Loading coil and uncoilling coil and straigthening the Coil strips.

Step-2: NC Servo Roll Feeder machine, Feed coil strips to press machine.

Step-3: Power pres machine with the progressive die,pressing to the end product

3-Segment Hydraulic Mandrel – Provides uniform radial expansion for secure coil gripping, preventing slippage during high-speed unwinding.
Optional Pressing Arm – Recommended for materials over 1.0mm thickness to prevent spring-back and ensure operator safety.
Japanese Electrical Components – Mitsubishi or Fuji magnetic contactors and electronic parts ensure reliable operation and extended service life.
Inverter Speed Control – Enables precise speed adjustment for optimal synchronization with downstream servo feeders and presses.
Angled Leveler Design – The straightening section is positioned at an optimal incline to minimize the loop distance between decoiling and feeding, reducing material stress.
Single-Point Down Pressure System – An exclusive SUNRUI design that allows quick, accurate straightening point adjustment via a single control point, simplifying operation and reducing setup time.
Low Maintenance & High Safety – Simplified design reduces routine maintenance requirements, while built-in safety interlocks and overload protection ensure operator safety.