What is a Hydraulic Guillotine Shearing Machine?

A hydraulic guillotine shearing machine is a highly efficient machine tool that utilizes a hydraulic system to drive the upper tool holder for linear shearing of metal sheets. Its core feature is the use of a hydraulic cylinder to propel the guillotine tool holder to achieve vertical shearing motion. Through the hydraulic system's pressure transmission and precise control, this machine enables high-precision cutting of metal sheets such as carbon steel, stainless steel, and aluminum. It is widely used in sheet metal processing, machinery manufacturing, and steel structure production.

A hydraulic guillotine shearing machine primarily consists of a frame, hydraulic system, tool holder, back gauge, and electrical control system. The frame is typically constructed of welded steel plates and tempered to eliminate internal stress, ensuring stability under long-term, high-load operation. The hydraulic system consists of a motor, oil pump, cylinder, valve block, and oil tank. A solenoid-operated reversing valve controls oil flow, driving the main cylinder to drive the upper tool holder to perform the shearing operation. The tool carriage utilizes rectangular or roller guides. The upper blade is fixed to the carriage, while the lower blade is mounted on the workbench. The blade gap can be adjusted to accommodate different plate thicknesses.

The operating principle of this equipment is as follows: When the hydraulic pump is activated, pressurized oil enters the main cylinder, pushing the piston rod downward, driving the upper blade carriage to complete the shearing action. After shearing is completed, the hydraulic system controls the rapid retraction of the blade carriage. Throughout the entire process, the back gauge is driven by a servo motor, precisely adjusting the shearing size with a positioning accuracy of ±0.1mm. The electrical control system utilizes a PLC programmable controller, automating functions such as cut count, cutting angle adjustment, and lighting.

Compared to mechanical shears, the hydraulic system of hydraulic gate shears provides a smoother shearing force, avoiding the shock and vibration of mechanical transmission. Adjusting the hydraulic pressure allows for easy shearing of varying plate thicknesses, with operating pressure typically within the range of 20-25 MPa. A hydraulic synchronization system ensures synchronized movement of both ends of the blade carriage, resulting in higher cutting accuracy. A deflection compensation device eliminates elastic deformation of the workbench during shearing, ensuring straightness when cutting long plates.