Precision Product

Expander Rollers

Wrinkle-removal and web-spreading rollers for smoother material flow and better line stability.

Expander Rollers are engineered for dependable running, application-matched performance, and custom manufacturing support across demanding industrial lines.

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Web SpreadingWrinkle ReductionConverting Line Support

Featured Product

Expander Rollers
Anti-Wrinkle Control
Expander Rollers
TypeNBR, EPDM, Silicone, CSM (Hypalon), or Metallic/Teflon outer segments
CoreHigh-Tensile Stationary Bowed Axle (Steel) with internal bearing spools
SurfaceSmooth Ground, Precision Grooved (to aid air expulsion), or Matt
UseWeb Spreading
Compound Selection Guide

Common Applications for Expander (Bowed) Rollers

Each compound is matched to your application, chemical environment, and operating conditions.

Rubber-Covered Expander (Banana Roller)

The industry standard for paper, textiles, and flexible packaging. Features a flexible rubber sleeve rotating over a stationary curved axle, actively spreading the web outward to eliminate wrinkles, creases, and slack edges.

Teflon or Metallic Segmented Expander

Built for high-tension, high-speed, or extreme-temperature applications (like heavy plastic films, foils, or non-wovens) where a standard rubber sleeve would wear out prematurely or generate too much friction.

Variable Bow Expander

Engineered for versatile converting lines. Allows operators to mechanically adjust the degree of the curve (the bow) on the fly, making it perfect for machines that process multiple types of substrates with different tension requirements.

TECHNICAL SPECIFICATIONS

Hardness Range45 to 80 Shore A (For flexible rubber outer sleeves)
Core MaterialsHigh-Tensile Stationary Bowed Axle (Steel) with internal bearing spools
Rubber CompoundNBR, EPDM, Silicone, CSM (Hypalon), or Metallic/Teflon outer segments
Operating TemperatureUp to 120°C (Standard Rubber) / Up to 200°C+ (Silicone/Teflon)
Surface FinishingSmooth Ground, Precision Grooved (to aid air expulsion), or Matt
Covering Thickness10 to 15 mm per side (Applied as a flexible outer sleeve)
Color RangeBlack (Standard NBR), Red (Silicone), Custom based on industry
Key PropertiesActive wrinkle and crease removal, precise web spreading, slit separation, elimination of slack edges

KEY FEATURES

  • ✔Active wrinkle and crease removal across the full web width.
  • ✔Precise web spreading for consistent slit and edge control.
  • ✔Slack edge elimination improves finished product quality.
  • ✔Adjustable bow (variable models) for multi-substrate versatility.

KEY BENEFITS

  • ★Prevents web defects that cause production waste and rejects.
  • ★Improves finished roll quality in paper, film, and textile lines.
  • ★Reduces setup time when switching between different substrate types.