Ultra-Thick Metal Shearing Protection Guide
Preventing shear overload damage when processing ultra-thick metals requires coordinated protection through equipment adaptation, operating procedures, protection mechanisms, and auxiliary processing.
Comprehensive Protection Measures
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Equipment Parameter Matching
Strictly adhere to nameplate specifications: Maximum thickness, Material hardness, and Shear force must all be within rated ranges.Blade Gap Setting
Adjust to 5%-8% of material thicknessExample
Never exceed marked capacity (e.g., 25mm max for 30mm material) -
Optimized Operation Process
Implement cooling breaks during prolonged operationBlock Progressive Cutting
Pre-cut into sections to reduce single-load stressFeed Speed Control
Manual: 0.3-0.5m/s
Auto: Low-speed start then gradual increase -
Enhanced Protection Mechanisms
Hydraulic Safety
Pressure limit: 110%-120% of ratedElectrical Protection
Thermal relays cut power at 1.2-1.5× rated currentRegular structural inspections of frame and bearing seats to prevent hidden overload risks -
Pre-Treatment & Maintenance
Material Preparation
Anneal high-hardness metals (e.g., hardened steel)Blade Maintenance
Replace if edge wear exceeds 1mmMaintain clean hydraulic oil and proper lubrication to minimize friction resistance
By implementing these coordinated measures—precise parameter matching, controlled operation procedures, robust safety mechanisms, and proper material preparation—you can safely shear ultra-thick metals while preventing equipment overload and extending machine service life.