Flying Shears

LYJD flying shear is a high-speed cutting tool designed for metal rolling and processing lines. It can perform precise and continuous shearing of moving billets, strips, bars or coils without interrupting the material flow.
Unlike traditional stop-motion shearing systems, this equipment provides a more efficient solution by synchronizing the cutting action with the material feed speed. It is suitable for hot and cold rolling applications, minimizing burr formation, cutting clean edges, and reducing thermal deformation.
LYJD’s flying shear system is modular in design, rugged and durable, and can adapt to various industrial conditions.

Flying shears are widely used in the following scenarios:
Hot rolling mills: for cutting hot rolled metal strips, billets or blooms. Cold rolling lines: for precision trimming and length control of cold worked strips.
Rebar and wire mills: for cutting rebar to specified lengths without stopping. Aluminum and copper processing: for efficient shearing of non-ferrous materials at line speeds. Tube mills: for online cutting of tubes or open profiles. Steel service centers: integrated into slitting and packaging lines.

High Efficiency Online cutting without stopping the machine reduces downtime and increases production. Reduces labor requirements and manual intervention.
Precision Performance Cutting accuracy ±0.5-1.0 mm, depending on material and line speed. Adjustable cutting frequency and blade synchronization.
Durability and long life Heat-treated steel frame and wear-resistant parts ensure long service life.
Low maintenance cost due to self-lubricating bearings and seals. Safety and Automation
Full PLC control with error diagnosis function and remote operation support.
All key actions are equipped with emergency stop, overload protection and real-time feedback.
Flexibility
Suitable for a variety of materials: carbon steel, stainless steel, aluminum, copper.
Compatible with different mill layouts.

The flying shear is a precision-engineered device designed for continuous high-speed metal cutting operations. Its complete structure includes:
Mechanical system Upper and lower circular blades: high-speed rotating blades mounted on solid shafts for synchronous shearing.
Main frame: sturdy steel welded structure to withstand dynamic loads and vibrations during high-speed cutting.
Blade shaft sleeve: precision-machined housing with self-aligning bearings to ensure low friction and high rotational stability.
Blade lifting and adjustment mechanism: manual or automatic adjustment of blade gap to adapt to different material thicknesses.
Power and drive system
Main motor (AC or servo motor): provides rotational energy to the blade shaft.
Gear reducer and coupling: ensure torque transmission with minimum gap.
Hydraulic pump station: controls clamping, lifting and blade start.
Material feeding system
Inlet guide roller: guides and straightens the incoming strip or billet.
Synchronous system: uses encoder feedback to match the material speed with the shear blade movement.
Electrical and control system
Automatically controls the cutting cycle, blade speed regulation, speed synchronization and emergency response.
Real-time monitoring, parameter setting and diagnosis are possible.
Safety interlocks and sensors: prevent accidental operation and ensure operator safety.