Shearing machine QC12Y-4×2500 is a type of machine tool that uses one blade moving in a reciprocating linear motion relative to another blade to shear metal sheets. It is essential basic equipment in sheet metal processing, primarily used for cutting and separating large-sized metal sheets into required dimensions through straight-line cutting.
Core Working Principle
The working process of a shearing machine is based on a simple shearing principle:
Clamping: Before the upper blade descends, the clamping feet (or clamping cylinders) press down first, firmly securing the sheet material to be cut onto the worktable. This step is crucial as it prevents the sheet from moving during shearing, thereby ensuring the straightness and dimensional accuracy of the cut.
Shearing: The upper blade (moving blade), driven by hydraulic or mechanical power, moves downward. It interacts with the lower blade fixed on the lower blade holder. There is a very small gap between the two blades. They apply a shearing force exceeding the material's own shear strength, causing it to fracture and separate instantaneously.
Return Stroke: After shearing is completed, the upper blade retracts upwards to its initial position, and the clamping feet release. The operator can then remove the sheared workpiece.
Main Types
Based on the driving method and structure, shearing machines are mainly divided into the following categories:
a. Hydraulic Swing-beam CNC Shearing Machine
The main unit is equipped with a CNC system specialized for shearing machines.
The back gauge uses a ball screw and linear guides, driven by a servo motor, offering high speed and precision.
The CNC system has multi-step programming functionality, enabling automatic operation and continuous positioning of the back gauge for automatic adjustment of its position.
Features a cutting count function, displays the number of cuts, and memorizes back gauge positions, programs, and parameters after a power outage.
b. Hydraulic Guillotine CNC Shearing Machine
Represents the second generation of hydraulic shearing machines.
Uses a steel plate welded structure, with stress relieved through vibration aging, providing good rigidity and stability.
Employs three-point supported rolling guides to eliminate support clearance and improve shearing quality.
Blade gap is adjusted manually via a handwheel, offering quick, accurate, and convenient operation.
Rectangular blades with four usable edges, resulting in a long service life.
Adjustable shear angle to reduce sheet twisting and deformation.
The upper blade holder uses an inward-tilting structure to facilitate material dropping and improve workpiece accuracy.
Features step shearing capability and an optical line alignment function.
Powered back gauge with digital display.
Rear support device (optional accessory).
c. Basic Shearing Machine Specification Parameters
Model | Thickness (mm) | Width (mm) | Stopper Adjust Range (mm) | Travel Times (T/min) | Power (kw) | Overall Dimension LxWxH(mm) |
4x2500 | 4 | 2500 | 20-500 | 14 | 5.5 | 3040x1550x1550 |
4x6000 | 4 | 6000 | 20-800 | 5 | 7.5 | 6460x2100x2200 |
6x2500 | 6 | 2500 | 20-500 | 14 | 7.5 | 3040x1710x1620 |
6x6000 | 6 | 6000 | 20-800 | 5 | 11 | 6480x2100x2300 |
8x2500 | 8 | 2500 | 20-500 | 11 | 7.5 | 3040x1700x1700 |
8x6000 | 8 | 6000 | 20-800 | 8 | 11 | 6480x2100x2350 |
10x2500 | 10 | 2500 | 20-500 | 10 | 11 | 3040x1800x1700 |
10x6000 | 10 | 6000 | 20-800 | 10 | 15 | 6500x2100x2300 |
12x2500 | 12 | 2500 | 20-600 | 12 | 18.5 | 3140x2050x2000 |
12x6000 | 12 | 6000 | 20-1000 | 5 | 18.5 | 6900x2600x2700 |
16x2500 | 16 | 2500 | 20-600 | 10 | 18.5 | 3140x2150x2000 |
16x6000 | 16 | 6000 | 20-1000 | 5 | 22 | 6900x2700x2700 |
20x2500 | 20 | 2500 | 20-800 | 8 | 22 | 3440x2300x2500 |
20x6000 | 20 | 6000 | 20-1000 | 4 | 22 | 6700x3000x3000 |
25x3200 | 25 | 3200 | 20-1000 | 5 | 37 | 4200x2400x2500 |
30x3200 | 30 | 3200 | 20-1000 | 4 | 40 | 4200x2500x2600 |
40x2500 | 40 | 2500 | 20-1000 | 3 | 75 | 3200x3300x3200 |
40x3200 | 40 | 3200 | 20-1000 | 3 | 90 | 4300x3300x3000 |
Note: This table shows part of the parameter list for hydraulic swing-beam CNC shearing machines. Please contact us for the complete parameter list and parameter lists for other models.
Main Advantages:
High Efficiency: Particularly suitable for blanking and splitting long straight edges; fast speed.
High Economy: Relatively low equipment and operating costs.
Relatively Simple Operation: Easy to learn and operate.
Strong Cutting Capacity: Large hydraulic shearing machines can shear very thick steel plates (e.g., tens of millimeters).
Limitations:
Single Function: Can only perform straight-line cuts; cannot process complex contours or holes.
Shearing Accuracy: Although CNC types offer high precision, the accuracy and consistency of standard models relying on manual operation may not match that of laser cutting.
Blade Gap Adjustment: The blade gap needs to be adjusted according to the material type and thickness; otherwise, it affects shearing quality and blade life.
In summary, Shearing Machine QC12Y-4×2500 is a "fundamental workhorse" in the field of sheet metal processing, offering unparalleled efficiency and cost advantages for straight-line blanking. In modern factories, it is often integrated into production lines alongside equipment like laser cutting machines and press brakes, with each leveraging its unique strengths to collectively complete the manufacturing process from sheet metal to finished product.
