Premium Breast Roll for Turnkey Paper Production Line
This breast roll comprises a precision-welded shell constructed from high-grade mild steel seamless pipe with a substantial wall thickness that ensures exceptional rigidity and minimal deflection under load. The forged EN-19 steel shafts are precision-machined with a taper design, eliminating the need for a sleeve and ensuring a secure, maintenance-friendly bearing fit. The breast roll is fully assembled with premium spherical roller bearings from SKF or FAG and heavy-duty cast iron bearing housings featuring water-sealed covers and labyrinth-type watertight seals that effectively prevent water and contaminant ingress. The roll surface is covered with a black diamond rubber covering of substantial thickness, providing outstanding wear resistance and excellent sheet release characteristics. Anti-splash rings and labyrinth-type splash rings manufactured from gunmetal provide additional sealing protection, while stainless steel 304 end caps ensure long-term corrosion resistance.
Main Technical Specifications of Breast Roll
| Component | Specification |
|---|---|
| Shell Material | Mild Steel Seamless Pipe |
| Shell Outer Diameter | 690 mm ±1 mm |
| Shell Thickness | 31 mm ±1 mm |
| Face Length | 4650 mm |
| Shaft Material | Forged EN-19 Steel, Tapered, Sleeveless |
| Bearing Type | 23238 CCK/W33 – SKF / FAG |
| Bearing Housing | Cast Iron – GG 25 |
| Covering Material | Black Diamond Rubber |
| Covering Thickness | 15 mm ±1 mm |
| Covering Hardness | 100 ±2° Shore A / 0-1 P&J |
| End Caps | SS-304 |
| Splash Rings | Gunmetal |
The breast roll’s robust seamless pipe construction with forged shafts ensures exceptional structural integrity and load capacity. The breast roll also facilitates initial dewatering at the forming section entry, contributing to efficient water removal and improved sheet consistency. Our breast roll is backed by responsive after-sales technical support. For customers seeking a dependable paper making line or complete paper mill line solution, our breast roll delivers outstanding performance and reliability. For further information on how our breast roll can benefit your paper processing line or turnkey paper production line, please reach out to us at leizhanworld@gmail.com.