The blind hole press roll features numerous holes drilled to specific depths on its surface, typically using two or three different depth sizes arranged in the same pattern. These holes, which do not connect to the atmosphere or vacuum system, are referred to as blind holes.

This pressing configuration, known as blind hole press, consists of rolls that are either rubber-coated or polyurethane-coated on an iron core. The rubberized surface contains blind holes measuring 2mm in diameter and 12-15mm in depth, with options for different depths arranged in alternating rows.

Key characteristics of the blind hole press roller:

• 25-30% surface opening rate
• Approximately 5 times greater water capacity than grooved press rollers
• Durable solid sections that resist damage better than grooved rollers
• Softer surface layer (70-90 Shore hardness) reduces felt wear
• Wider nip provides increased line pressure
• Extended service life with multiple regrinding cycles possible

The press section's primary function is mechanical dewatering of the fiber mat. The blind hole press roll significantly increases dry content before the paper web enters the dryer section, resulting in:

• Reduced drying energy requirements
• More efficient paper manufacturing process
• Lower operational costs
• Optimized dewatering performance

Founded in 2008, Huatao Group is a leading manufacturer of industrial rollers with over 15 years of experience serving the paper, plastic, rubber, and nonwoven fabric industries. Our expertise includes:

Paper Industry: Forming rollers, vacuum couch rollers, dandy rollers, breast rollers, rubber press rollers, stone press rollers, dryer cylinders, size press rollers, calender rollers, and specialized embossing rollers.

Plastic & Rubber Industry: Chill rollers, MDO rollers, PRS cooling rollers, corona treatment rollers, CFRP rollers, coating drums, and precision calender rollers.

Nonwoven Fabric Industry: Cylinder rollers, doffer rollers, CFRP guide rollers, embossing rollers, and specialized cooling rollers.

Our commitment to innovation and quality has established Huatao Group as a trusted global supplier, with products exported to 96 countries. We provide customized solutions tailored to each customer's specific requirements, ensuring superior performance and reliability.