Product Overview

This sleeve-type cold perforating needle roller is a core web processing component for continuous mechanical perforation. The roller base is precision pre-drilled, and hardened steel pins are press-fitted into the base with interference fit instead of adhesive bonding. It adopts cold piercing technology without heating. The tapered sharp steel pins penetrate the running flexible substrate synchronously with the production line, forming uniform open micropores. This shaftless sleeve structure allows separate replacement and maintenance without replacing the whole roller assembly. All parameters including roller size, pin height, pin spacing and arrangement pattern can be customized per 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

• Interference press-fit steel pins, not easy to loosen or fall off during long-time high-speed operation
• Hardened high-carbon steel needles, excellent wear resistance and long service life
• Strict dynamic balance calibration, low vibration, avoiding scratch on base materials
• 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
• Sleeve structure, convenient for spare parts replacement and lower maintenance cost

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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