The Difference Between Hydraulic Swing Beam Shears and Guillotine Shears

With the progress of society, people’s demands for various materials are increasing, and the same applies to the machinery industry. The machinery manufacturing industry is the foundation of national development. Choosing a high-performance, high-precision machine tool has become a difficult task for many friends. Here, we will introduce the selection of our hydraulic shearing machines.

CNC shearing machines are divided into CNC hydraulic guillotine shears and CNC hydraulic swing beam shears, with models QC11Y and QC12Y series respectively. However, the CNC systems for both can be used interchangeably. The most critical difference between them lies in the structure of the machine.

There are various CNC systems available. The ones we commonly use for export are the ESTUN E21 and ES10 CNC systems. Customers with higher requirements often choose the DAC310 and DAC360 systems from the Dutch company DELEM.

Features of Hydraulic Swing Beam Shears:

1. Swing Beam Shear: The upper blade frame swings in an arc around a fixed axis during the shearing process. Through leverage, the stress on the fulcrum is small, which can improve the life of the shearing blade and the machine’s overall lifespan. The structure is compact, and the stroke of the upper blade frame can be infinitely adjusted, greatly improving work efficiency.
2. Hydraulic Transmission and Swing Beam Blade Frame: The machine frame is integrally welded, sturdy, and durable. The accumulator oil cylinder ensures smooth and rapid return.
3. Infinitely Adjustable Stroke Function: The upper blade has two edges, and the lower blade has four edges. The gap between the upper and lower blade edges is adjusted with a handle, making it easy to adjust the uniformity of the blade gap.
4. Safety Features: Protective fences and electrical interlocks ensure safe operation.
5. Hydraulic Clamping: The machine uses independent hydraulic clamps with plastic pads at the ends of each clamp.
6. Back Gauge Control: Controlled by the system, with a digital display for the number of shears.
7. Material Roller Support Device: Reduces friction while ensuring the workpiece surface is not scratched.
8. All-Steel Welded Structure: Vibration eliminates stress, providing high strength and good rigidity.
9. Hydraulic Upper Transmission: Smooth and reliable.

Structural Features of Hydraulic Guillotine Shears:

1. Frame and Upper Blade Frame: Both the frame and the upper blade frame are made from welded steel plates, providing excellent rigidity. They undergo overall annealing to relieve stress and are then precisely machined to maintain accuracy. Two main and auxiliary oil cylinders are fixed to the support plates, which are connected to the left and right columns and the outer pressure plate. The workbench is equipped with material support feet and ball rollers for convenient operation.
2. Upper Blade Frame Movement: The upper blade frame moves on rolling guide rails and is supported at three points between the left and right columns and the outer pressure plate, ensuring excellent rigidity. Driven by the main and auxiliary oil cylinders, it moves back and forth to complete the shearing process. This design maintains accuracy and improves the shearing quality. The upper blade frame’s inward-tilted structure facilitates material dropping, enhancing the workpiece’s precision. Hydraulic guillotine shears are more suitable for cutting thick plates.
3. Presser foot: Located at the front of the machine frame, the pressing device comprises 12 or more pressing oil cylinders mounted on the outer pressure plate. When pressure oil enters the pressing oil cylinders, the pressing heads overcome the tension and reset. The pressing force increases with the thickness of the sheet being cut.
4. Adjustable Shearing Angle and Blade Gap: The shearing angle can be adjusted electrically with an indicator light display. The blade gap is adjusted with a handwheel, and the adjustment is displayed digitally. The stroke is adjustable as well.

   

How to Avoid Damage During the Use of a Shearing Machine?

1. Initial Testing: Start the shearing machine and let it run several cycles without load to ensure it is operating normally. Test shear plates of different thicknesses, starting from thin to thick, to familiarize users with the machine’s performance.
2. Monitoring Pressure: During the shearing process, open the pressure gauge switch and observe the oil circuit pressure value. When shearing 12mm plates, the pressure should be less than 20MPa. The remote pressure regulating valve No.9 is set to 20-22MPa at the factory. Users must adhere to this regulation and not increase the pressure beyond the specified limit for thicker materials, as this can damage the machine.
3. Sound Check: Ensure the machine operates with a balanced sound. If there is any abnormal noise, stop the machine for inspection.
4. Blade Gap Adjustment: When testing different plate thicknesses, adjust the blade gap accordingly. Failure to adjust the blade gap correctly will affect the blade’s durability.

How to Maintain and Extend the Life of a Shearing Machine?

1. Adherence to Operating Procedures: Operate the machine strictly according to the operating procedures.
2. Regular Lubrication: Before each startup, lubricate according to the lubrication chart’s requirements, ensuring timely, precise, and adequate lubrication. Use clean oil without sediment.
3. Cleanliness: Keep the machine clean regularly, applying anti-rust grease to unpainted parts.
4. Lubricating Motor Bearings: Periodically replace and add lubricating oil to the motor bearings, and frequently check if the electrical components are functioning safely and reliably.
5. Checking for Wear and Damage: Regularly inspect the V-belt, handles, knobs, and buttons for damage. Replace severely worn parts promptly and report them for spare parts replenishment.
6. Inspection and Repair: Periodically inspect and repair switches, fuses, and handles to ensure reliable operation.
7. Daily Maintenance: Before the end of each workday, spend 10 minutes lubricating and cleaning the machine.
8. Operation by Authorized Personnel Only: Only designated personnel should operate the machine. Ensure the machine is stopped when unattended.