Rubber Coated Expander Wrinkle Removing Bow Roll For High Speed Winder And Rewinder
Bow Roll Basis Information
Bow Roll is known as Spreader Rolls, Bowed Rolls, Curve bar Expanders, Banana Rolls, Camber Rolls, and Wrinkle removing Rolls. Bow Rolls are available in rubber surface, hard chrome surface and also Teflon covering for non-sticking applications. Hard chrome surface Bowed Roller is used where speed exceeds 300 meters per minute. For higher speeds, larger diameters are used to reduce the roll's RPM.
The curved rubber roller features a specific arc in the longitudinal direction, fixed by ball bearings and fully rotatable. When paper passes through the roller, it stretches longitudinally due to the roller's curvature, effectively eliminating wrinkles and preventing material distortion during cutting processes.
Bow Roll Working Principle
The key difference between standard straight rollers and curved rollers lies in the axis radian. A straight roller can be considered a curved roller with infinite radius. During paper production and processing, cross-sectional shrinkage forces often cause wrinkles. The arc roller's design applies tension across the paper's width - as the material approaches the roller's entrance span, both edges tilt toward corresponding roller ends, gradually stretching the material to prevent wrinkling.
Bow Roll Function
Bow rolls are extensively used in paper, film, textile, and similar machinery. Their primary function is transverse tension application for superior anti-wrinkle performance in paper processing. The selected arc roller determines material tightness, directly affecting anti-wrinkle effectiveness.
Bow Roll Features
- Bearing ring internal structure
- Bearings installed in rubber sleeve for minimal swing torque
- Smooth rubber surface prevents material damage
- Freely adjustable roller face angle
- Excellent high temperature resistance, abrasion proof, anti-adhesive properties
- Maximum speed: 2000m/min
- Multiple surface treatments available: Sand-blasting, Chrome plating, Grooving
- Compatible with cutter machines, re-reeling machines, coating machines, and paper machines
About Huatao Group
Founded in 2008, Huatao Group is a leading manufacturer of industrial rollers with over 15 years of expertise serving paper, rubber, plastic, and nonwoven fabric industries. Our products are exported to 96 countries with excellent reputation.
Industry Specializations:
Paper Industry: forming rollers, vacuum couch rollers, press rollers, dryer cylinders, calender rollers, and spreader rollers.
Plastic & Rubber: chill rollers, MDO rollers, treatment rollers, CFRP rollers, and coating drums.
Nonwoven Fabric: cylinder rollers, guide rollers, embossing rollers, and cooling rollers.
We pride ourselves on custom solutions, matching each customer's specific requirements with optimal quality from our extensive manufacturing network. Our commitment to innovation and reliability ensures customers purchase with confidence, backed by ongoing support.
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