Backup Roll Locking Cylinder

$150-500 /Piece/Pieces

Payment Type:	L/C,T/T,D/P,Paypal
Incoterm:	CIF,EXW,FOB,CIP,DDP,CPT
Min. Order:	1 Piece/Pieces
Transportation:	Ocean,Air
Port:	shanghai

Model:

80 56-70

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Product Description

Product Attributes

Model No.: 80 56-70

Brand: guoyue

Warranty Period: 1.5 Years

Out-of-warranty Service: Online Support

Where To Provide Local Services (in Which Countries Are There Overseas Service Outlets): Indonesia

Showroom Location (in Which Countries Are There Sample Rooms Overseas): None

Place Of Origin: China

Service System: Online Support

Support Customization: Oem, Odm

Packaging & Delivery

Selling Units	:	Piece/Pieces
Package Type	:	wooden package
Picture Example	:

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Product Description

Backup Roll Locking Cylinder Mill Door Clamping Cylinder Supporting roller lock door cylinder Safety Door Interlock Cylinder

Backup roll locking and mill door clamping cylinders are essential components in modern rolling mills, delivering multiple operational and safety advantages through their robust hydraulic actuation systems. These specialized cylinders typically generate 50-200 metric tons of clamping force to securely immobilize backup roll chocks during rolling operations, effectively preventing axial displacement even under extreme rolling loads exceeding 10,000 kN. Their integrated design combines three critical functions: precise roll positioning, mill door interlocking, and safety overload protection, enabling ultra-fast roll changes in as little as 8-15 minutes in advanced mill configurations. The cylinders' precision-machined components achieve ±0.5mm positioning accuracy for perfect roll alignment, while their hardened steel construction with multi-layered sealing systems (including fire-resistant Fluorocarbon seals rated for continuous 200°C operation) ensures reliable performance in the punishing environment of hot strip mills.

A key innovation is the dual-mode safety system incorporating both hydraulic pressure holding (via pilot-operated check valves) and mechanical locking mechanisms, providing redundant protection against accidental release. The cylinders' optimized response time of ≤3 seconds for full stroke movement meets the rapid sequencing requirements of automated roll change procedures. Standardized SAE/ISO flange connections (typically Code 62 or Code 61) facilitate quick disconnection during maintenance, while integrated position sensors and pressure transducers enable real-time monitoring through the mill's PLC system. Special corrosion-resistant variants featuring stainless steel rods with HVOF coatings extend service life in cold rolling applications where acidic coolants are present.

These cylinders significantly enhance mill productivity by reducing roll change downtime by 30-40% compared to traditional mechanical systems, while their precision clamping action prevents costly roll damage from improper seating - a single avoided roll stack incident can justify the system's cost. Advanced models now incorporate condition monitoring features like internal leakage detection and seal wear indicators, supporting predictive maintenance strategies. The combination of ultra-high holding force, environmental resistance, and smart monitoring capabilities makes these cylinders indispensable for modern high-output rolling mills operating with thinner gauges and higher strengths materials. Their reliability directly impacts mill availability, with leading manufacturers guaranteeing ≥500,000 maintenance-free cycles in continuous operation.