Product Overview

This sleeve-type cold perforating needle roller adopts lightweight aluminum alloy as the roller substrate. The roller body is precisely pre-drilled, and hardened steel pins are press-fitted into the base by interference fit instead of adhesive bonding. It applies cold mechanical piercing technology without heating. The steel pins penetrate running flexible substrates synchronously with the production line to form uniform open micropores. The shaftless sleeve structure supports independent installation and replacement, which reduces maintenance cost. Multiple specifications and pin arrangement schemes are available; all parameters can be customized according to customer drawings and production requirements.

Core Functions

• Continuously create uniform micropores to adjust air permeability and moisture transmission rate
• Mechanical cold puncture for breathable opening on flexible web materials
• Control the opening rate to meet different ventilation and pressure relief requirements
• Surface texturing and opening treatment for textile and nonwoven products
• Stable online perforating for high-speed continuous production lines

Core Advantages

• Lightweight aluminum alloy base, good dynamic balance, low vibration for high-speed operation
• Interference press-fit steel pins, not easy to loosen or fall off during long-time operation
• Hardened high-carbon steel needles, excellent wear resistance and long service life
• Flexible customization of pin arrangement, pin density and all roller dimensions
• Cold perforation design, no melting and sealing on hole edge, keeps open pore structure
• Shaftless sleeve structure, convenient for spare parts replacement

Typical Applications

It is widely applied in perforating processing of flexible roll materials. Suitable for nonwoven fabric, breathable plastic film, textile fabric, packaging film, artificial leather, geotextile and filter material. Common usage scenarios include hygiene material production, fresh-keeping packaging ventilation, fabric post-treatment, industrial web surface processing.

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