Table of Contents
SC 12mm Metal Plate Shearing Machine is a hydraulically driven, guillotine type metal shear designed specifically for shearing thick plate. The 12mm hydraulic guillotine metal shear utilizes a hydraulic drive and guillotine type mechanism to shear metal plates up to 12mm thick. It cuts through the linear reciprocating motion of upper and lower blades, making it suitable for precise shearing of medium and thick plates. It is widely used in sheet metal processing, shipbuilding, bridge construction, and machinery manufacturing.
1. Main Components of the 12mm Metal Plate Shearing Machine

- Frame
Adopts a one-piece welded structure, stress-relieved by vibration aging or tempering, resulting in high rigidity and minimal deformation.
- Upper Blade Carrier
Driven up and down by a hydraulic cylinder, the blade cuts in a straight line, ensuring high shear quality.
- Hydraulic System
Adopts an integrated hydraulic system for stable operation, optimal oil temperature control, and high safety.
- Blade
Typically made of high-quality alloy tool steel such as 9CrSi, 6CrW2Si, or H13, it is wear-resistant, sharp, and has a long lifespan.
- Back Gauge
Controlled by CNC or manual control, it is used to set the shear length and offers high positioning accuracy.
- Worktable
Equipped with a ball bearing support to reduce surface scratches and feed resistance.
- Electrical Control System
Equipped with a PLC or CNC system, the system offers an intuitive interface and supports batch cutting, automatic positioning, and other functions.
SC Plate Shearing Machine Optional Configurations:
- CNC Systems: E21S, DAC360, ELGOP40
- Automatic Blade Gap Adjustment: Improves operational efficiency
- Spherical Front Support: Convenient for handling long sheets
- Pneumatic Rear Support: Improves cutting quality, especially for cutting thin and long sheets
- Anti-Twist Device: Prevents sheet material from twisting during cutting, especially suitable for cutting narrow strips
- Laser Alignment: Precisely locates the cutting position
- Automatic Loading and Unloading System: Suitable for mass production and automation
- Photoelectric Safety Protection: Prevents injuries from misoperation
2. Common Technical Parameter Ranges (Using Q235 Standard Steel Plate as an Example)
12mm Metal Plate Shearing Machine Parameter Table:
Items | Parameter Range |
Maximum cutting thickness | 12mm |
Maximum cutting length | Common 2500mm / 3200mm / 4000mm (customizable up to 6000mm) |
Material strength | ≤ 450MPa (Q235 steel), higher strength requires reduced thickness |
Cutting angle | 0.5°–2° adjustable |
Blade length | Same as cutting length |
Cutting speed | 8–14 cuts/minute |
Back gauge stroke | 600mm (customizable) |
Main motor power | 15–22kW (depending on model) |
Hydraulic system pressure | Approximately 25MPa |
Control system | CNC systems available, including E21S, DAC360, and ELGOP40 |

3. Shear Capacity of Different Materials
Analysis Table:
Materials | Tensile Strength | Recommended maximum shear thickness |
Q235 carbon steel | ≤ 450MPa | 12mm (rated) |
Stainless steel (304) | ~600MPa | 8-9mm |
Aluminum alloy | ~200MPa | 16-18mm |
Copper plate | ~300MPa | 14-15mm |

The shear thickness of high-strength materials (such as stainless steel and high manganese steel) should be appropriately reduced to avoid overloading the hydraulic system and tool.
4. Performance Features
- Strong Cutting Capacity
Easily cuts Q235 ordinary carbon steel plates ≤ 12mm thick, and Q345 high-strength steel plates ≤ 10mm are recommended.
- High-Precision Cutting
The blade gap can be adjusted manually or electrically to ensure cutting quality for different plate thicknesses.
- Safe Operation
Equipped with a photoelectric safety device, a guardrail, and an emergency stop button, it complies with CE safety standards.
- High Efficiency
Shearing speeds typically reach 8–14 cuts/minute, making it suitable for medium-volume production.
- Low Noise and Low Vibration
Combined with a hydraulic drive and gate-type linear motion, the cutting process is smooth and quiet.
- Energy Saving and Environmental Protection
The hydraulic system can be equipped with an energy-saving hydraulic pump to reduce energy consumption and oil temperature.

5. Applications
- Sheet Metal Fabrication: Batch cutting of steel, stainless steel, and aluminum plates.
- Shipbuilding and Bridge Construction: Cutting of medium-thick plates for structural fabrication.
- Construction Machinery: Cutting of plates for vehicle frames, brackets, guard plates, and other components.
- Warehousing and Steel Structure: Cutting of steel plates. Heavy Equipment Manufacturing: Medium and Thick Plate Cutting Process.
6. Selection Recommendations
- For long-term cutting of stainless steel or high-strength steel, it is recommended to choose an H13 blade material, and allow a 20% margin for the machine’s cutting thickness capacity.
- The cutting length should be slightly longer than the maximum plate length to avoid incomplete cutting.
- It is recommended to choose a machine with a CNC backgauge to improve efficiency and accuracy.
- For high-frequency continuous production, consider a hydraulic system with servo pump control technology for energy efficiency and noise reduction.
SC Sheet Metal Shearing Machine Common model list:
Application Requirements | Recommended Models |
Conventional carbon steel thick plate shearing | QC11Y-12×3200 (NC) |
Mass production + high precision | QC11K-12×3200 (CNC) |
Shearing high-strength steel/stainless steel | QC11Y-14×3200 (with safety margin) |
Length > 3.2 meters | QC11Y-12×4000 or QC11Y-12×6000 |
Automated production | CNC + Automatic Loading and Unloading System |
The 12mm metal plate shearing machine has stronger frame rigidity, higher hydraulic system pressure and more powerful main motor than the 8mm model. It is suitable for carbon steel plates with a thickness of ≤ 12mm and other metal plates of corresponding thickness.