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Nanjing Asia Machine Mfg. Co., Ltd QC11K-8/3200 Guillotine shearing machine

QC11K-8/3200 Guillotine shearing machine
The frame adopts an all-steel welded structure, boasting sufficient strength and rigidity. Internal stresses are eliminated through normalizing and high-frequency vibration treatment to ensure the overall precision of the machine body.
German large-scale floor-type boring and milling machines are employed for precision machining using a one-time processing method, guaranteeing exceptional machining accuracy.
It features a hydraulic swing-type structure with an upper tool rest return device powered by nitrogen cylinders, enabling fast return speeds.
The hydraulic system utilizes an integrated logic circuit controlled by sequence valves, ensuring stable operation, low noise, and straightforward maintenance.
Tool rest movement is regulated by hydraulic valves for precise control.
The material pressing device incorporates an integrated circuit and independent parallel clamping cylinders. When dealing with uneven sheet metal, the cylinders can expand and contract freely to securely clamp the material. The clamping force is adjustable according to the sheet material and thickness, preventing any damage to the sheet surface.
Motorized adjustment allows for quick setting of the blade gap, offering simple operation to adapt to shearing requirements of different sheet thicknesses and materials.
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Control is achieved through a numerical control (NC) system, enabling fixed-stroke shearing operations.
An optical line alignment device facilitates scribed line shearing for enhanced accuracy.
The electrical control system is centralized and reliable, with the following key features:
All power facilities are installed within the machine body, operated and controlled via buttons on the control panel.
A foot switch is provided for direct and convenient operation of the shearing action.
Core electrical components are sourced from Schneider for guaranteed quality and reliability.
Circuit breakers are installed to protect the control circuit against short circuits.
Motor thermal-magnetic circuit breakers provide protection against motor overload and short circuits.
The hydraulic system is designed for safety and reliability:
The hydraulic system manifold block is equipped with a direct-acting safety relief valve to ensure accurate pressure adjustment.
A pipeline check valve is specially installed at the pump head to protect the oil pump from hydraulic shock.
Both upper and lower blades are made of high-quality materials and undergo full heat treatment, ensuring sufficient hardness and a long service life.
The ball-rolling worktable and front material supporting device facilitate easy feeding while preventing scratches on workpieces during operation.
The CNC back gauge device is equipped with high-performance servo motors, drives, precision ball screws, and linear guides, achieving a positioning accuracy of ≤±0.1mm.
For the CNC electrical system:The back gauge is controlled by the E21S simple CNC system. Users can directly input the desired values, and the back gauge automatically moves to the specified position upon confirmation. Transmission is achieved through a motor-driven precision lead screw and nut assembly, with digital display via a counter. Fine-tuning for free size correction is not configured to ensure shearing precision, with an error of ≤0.2mm per meter.
Three front support arms are fixed on the worktable, providing convenient placement for shearing materials.