Guillotine Metal Shear
Your Professional Guillotine Metal Shear Manufacturer!
Professional Company
Henan Caipuli Machinery Equipment Co., Ltd is in the beautiful city of Jiaozuo. Through years of development, the company has specialized in manufacturing scrap metal processing equipment. Thanks to our strong technical strength, advanced test method as well as fully auxiliary equipment, the company kept increasing its market competitiveness.
Wide Products
Our products which fall into several categories, alligator metal shear, hydraulic metal shear, briquetting press, heavy-duty baling shear, cardboard /wool/fabric/wastepaper/hay /drum baler, and large-scale shredder line. We have exported to Australia, Malaysia, South America, the Philippines, Russia, Vietnam, Iran, Ukraine, Palestine, and other countries.
Reasonable Price
Our company is devoted to offering quality products at reasonable prices. We aim to supply competitive prices for every client, to help clients have a price advantage in their local market.
Good Service
We promise not only to provide the buyer with qualified new products but also to provide high-quality services. We work closely with our customers to understand their needs and provide tailored solutions to meet their requirements. With our expertise in products, we can help you achieve your goals and bring your products to market.
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What Is A Guillotine Metal Shear?
Guillotine shearing machines are used for cutting and shaping sheet metal in various manufacturing industries. The machine consists of a stationary cutting blade and a moving blade that is controlled by a hydraulic or mechanical system. The sheet metal is placed on the cutting table and the moving blade is brought down to cut through the metal. This machine is used to produce precise cuts in sheet metal for use in a wide range of products.
The main components of the hydraulic shearing machine are: frame assembly, upper tool rest device, lower tool rest device, pressing device, shearing edge side clearance adjustment, pressing device, etc. Due to the introduction of the hydraulic system, the electrical performance of the equipment has been improved and the automation level of the equipment has been improved. It has the characteristics of simple operation, high reliability and convenient modification of process parameters.
Rack Assembly
The whole rack consists of left and right racks (welding parts), beams and guide table. The upper part supports the upper tool rest driving device, the steel plate pressing device, the synchronizing device, the upper tool rest and so on. The left and right frames are bolted together with the beam and the lower tool frame to form a rigid frame that can withstand shearing force.
Upper Tool Holder Device
It is mainly used to fix the upper blade and move up and down along the slideway in the frame under the drive of the hydraulic cylinder to complete the shearing action. The upper shearing blade is closed on the upper knife box through the bolt handle, and the upper knife box is fixed on the upper knife frame through the locking cylinder, which is clamped by the spring and released hydraulically. A hinged double-parallelogram mechanical synchronizing mechanism is arranged between the upper tool rest and the upper beam of the frame. The two shearing cylinders are respectively installed on both sides of the shearing machine frame. The two sides are connected with spherical surfaces, and the two shearing cylinders simultaneously drive the upper tool holder equipped with the upper shearing blade to move up and down in the frame equipped with bronze and steel lining plates to complete the shearing.
Lower Tool Holder Device
It is mainly used to fix the lower blade, integrates with the left and right frame handles, bears and transmits shearing force, and completes the process of shearing steel plates together with the upper tool holder. The upper surface of the lower blade is 10mm lower than the roller table. Water is passed through the lower tool holder for cooling. The lower cutting edge is closed on the lower knife box through the bolt handle, and the lower knife box is fixed on the lower knife frame through the locking cylinder, which is clamped by the spring and released hydraulically.
Adjustment of the Side Clearance of the Shearing Edge
It is adjusted by two wedge systems, one of which is installed upstream of the shearing edge and the other is installed downstream of the shearing edge. The two wedge systems are respectively controlled by two hydraulic motors. Drive four jacks (worm worm gear sleeve nut screw) to move the wedge up and down, so that the upper tool table can move horizontally, and the side clearance of the cutting edge can be adjusted.
Pressing Device of Hydraulic Plate Shearing Machine
In order to prevent the steel plate from moving during shearing and to improve the quality and geometric accuracy of the shearing section, a hydraulic pressing plate device is installed in front of the frame of the cutting and shearing machine. After the sheared steel plate is transported to the position to be sheared, the hydraulic cylinder presses the pressure plate on the steel plate, and the shearing mechanism cuts the steel plate.
Types of Metal Shear
There are many types of shears used to shear or cut sheet metal.
Alligator Shear
An alligator shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder. Alligator shears are generally set up as stand-alone shears; however, there are types for excavators. The jaw size can range from 4 to 36 in (100 to 910 mm) long. They are generally used to cut ferrous members, such as rebar, pipe, angle iron, or I-beams.
Bench Shear
A bench shear, also known as a lever shear, is a bench mounted shear with a compound mechanism to increase the mechanical advantage. It is usually used for cutting rough shapes out of medium-sized pieces of sheet metal, but cannot do delicate work. For the small shear, it mostly designed for a wide field of applications. Light weight and easy efficient operation, yet very sturdy in construction. The cutting blades fitted are carefully and accurately ground to give easy, clean quick cuts, and free of burrs. These special features help the operators save a great deal of their energy. But some shearing machines can cut sheet bar and flat bar up to 10mm. It is electrically welded together to make it a sturdy stable unit capable to withstand highest stresses due to heavy duty usage. The footplates are reinforced with bracing angles so that they give firm stability to the shear. The machine is provided with section knives with sliding blades which can be adjusted by hand to make 90 cuts on angles and T-sections of different sizes as well as with openings for cutting round and square bars.
Guillotine Shears
The machine used is called a squaring shear, power shear, or guillotine. The machine may be foot powered, less commonly hand powered, or mechanically or hydraulically powered. It works by first clamping the material with a ram. A moving blade then comes down across a fixed blade to shear the material. For larger shears the moving blade may be set on an angle or "rocked" in order to shear the material progressively from one side to the other; this angle is referred to as the shear angle. Setting the blade on an angle decreases the amount of force required, but increases the stroke. A 5-degree shear angle decreases the force by about 20%[citation needed]. The amount of energy used is still the same. The moving blade may also be inclined 0.5 to 2.5°, called the rake angle, to keep the material from becoming wedged between the blades. However, raking the blade compromises the squareness of the edge. The machine consists of a shear table, work-holding device, upper and lower blades, and a gauging device. The shear table is the part of the machinery that the workpiece rests on whilst being shorn. The work-holding device is used to hold the workpiece in place and keep it from moving or buckling while under stress. The upper and lower blades are the piece of machinery that actually do the cutting, while the gauging device is used to ensure that the workpiece gets worked where it is supposed to be.
Power Shears
A power shear is electrically or pneumatically powered hand tool designed to blank large pieces of sheet metal. They are designed to cut straight lines and relatively large radius curves. They are advantageous over a bandsaw because there is not a size limit. Large versions can cut sheet metal up to 12 gauge. An alternative to the hand tools are hydraulically powered tools attached to heavy machinery. They are usually used to cut materials that are too bulky to be transported to a cutting facility, too big or dangerous for the hand tools and are stored at remote locations (e.g. mines, forests).
Throatless Shear
A throatless shear is a cutting tool used to make complex straight and curved cuts in sheet metal. The throatless shear takes its name from the fact that the metal can be freely moved around the cutting blade (it does not have a throat down which metal must be fed), allowing great flexibility in shapes that can be cut.
Tin Snips
Snips, also known as shears, are hand tools used to cut sheet metal and other tough webs. It is a cutting tool. Workers use various types of snips, either straight or blend one be obtained. The straight or bent being not only for straight cuts but for inside of the curvature or concave curvature too. There are two broad categories: tinner's snips, which are similar to common scissors, and compound-action snips, which use a compound leverage handle system to increase the mechanical advantage.
Advantages of Hydraulic Shear Machine
According to different working principles, they can be divided into hydraulic swing beam shearing machine and hydraulic guillotine shearing machine.
Hydraulic guillotine metal shear machines are often used in modern sheet metal processing production lines for ironworkers, because of its higher cutting accuracy, adjustable shear angle, longer blade life, longer oil cylinder life, and wider application range.
Higher Cutting Accuracy
The guillotine shear metal sheet cutting machine makes a vertical linear movement to achieve a smaller degree of distortion and a more accurate straightness of the sheared material. In addition, the guillotine hydraulic plate shearing machine is not easy to deform because the oil cylinder, the knife beam, and the blade are in the same straight line and move perpendicular to the lower blade.
Adjustable Shear Angle
When cutting plates with a thickness of less than 20mm, the pendulum hydraulic punch and shear machine cannot adjust the cutting angle, so the cut material has twist-like distortion. The narrower the cut material, the greater the distortion.
The guillotine hydraulic shear machine can adjust the angle by adjusting the volume of the enclosed oil cavity of two oil cylinders in series:
1)The shearing angle is enlarged and the shearing capacity is increased.
2)The shearing angle is reduced, and the shearing speed is increased, saving electric energy and working time.
Longer Blade Life
For swing beam shear cutting machine, its top blade cannot be used for 4-sided cutting, because the motion line of the knife body of the hydraulic swing beam metal cutting machine is arc-shaped. So only the blade can be used for two-sided cutting.
But for guillotine shear metal cutting machine, it moves up and down in a straight line, and can use rectangular blades with four-sided cutting edges, so the serving life of the hydraulic punch and shear cutting machine’s blades on the guillotine shearing machine is twice that of the pendulum type.
Longer Oil Cylinder Life
The built-in oil cylinder used in the pendulum hydraulic brake shear machine is difficult to lubricate and repair. However, the upper and lower chambers of the engineering oil cylinder used by the guillotine shears do not need additional lubrication, which greatly increases the service life.
The hydraulic oil cylinder of our guillotine hydraulic shearing machine is made of 45# steel quenched and tempered, the inner hole is finely bored and extruded, and the inner surface has high strength.
The piston rod is also made of 45# steel quenched and tempered, and the surface is plated with nickel and phosphorus, which has self-lubricating function to increase wear resistance.
Wider Application Range of Hydraulic Shear Machine
The guillotine metal shearing machine has a wider range of use, and can cut and process metal plates of different materials, such as carbon steel, stainless steel, and aluminum alloy, etc.
At the same time, because its metal cutting angle is adjustable, effective cutting can be achieved by adjusting the cutting angle for plates of different thicknesses.
Shearing machinery is an essential part of the sheet metal manufacturing process, and hydraulically powered models are the best on the market in terms of safety, precision, and speed. Although they are more expensive than the traditional manual models, hydraulic guillotines are a great investment that prove their worth many times over.
Accuracy
Hydraulic systems use a two-way cartridge integrated valve to ensure a high level of shearing accuracy. Because it is an all steel welded construction, it’s vibration eliminates stress, the hand wheels in the machinery also assist in modulating the gap between the plates and maintains accuracy.
Variability
Hydraulic models can cut different sizes without having to be adjusted. The shearing angle and working pressure can also be adjusted to reduce the deformation of plates.
Reliability
When combined with an integrated hydraulic system, this type of guillotine provides reliable results every time. Hydraulic models can also be programmed to meet the specifications of a particular project to ensure a consistent result.
Compatibility
Hydraulic machines can be integrated into most sheet metal manufacturing systems and are an ideal solution if you have a state of the art, integrated hydraulic system already in place.
Durability
A hydraulic model has a strong shearing capacity and a long service life. This is partially due to it’s steel welded construction.
Cost Effective
Although they are more expensive than manual models, a hydraulic guillotine represents value for money due to their long lifespans and production efficiency. Hydraulic models are also more compact, and take up less space on your factory floor.
Safety
Hydraulic models are safer option to work with than older manual models, provided they are operated by an experienced professional.
Energy Efficient
Because hydraulics depends on fuel power, they consume substantially less power than other mechanical models.
Speed
One of the chief advantages of a hydraulic model is it’s shearing speed, which outstrips the processing time of other types of shearing machines without compromising accuracy.
Easy To Repair
Hydraulic guillotines have standard replacement parts which are easy to source, relatively inexpensive, and simple to install.
How To Use A Sheet Metal Shear?
Sheet metal shear is a piece of hardware used to cut various types of metal and is very sharp and heavy duty. There are many types of metal shears that you can use and these will depend on your need and application. Shearing metal is a very important process in sheet metal fabrication and below are some steps on how to use the most common metal shear.
Protection
Make sure to put on your protective equipment because you will be working with steel and it can be dangerous. Metal shavings can become airborne and cause severe injury.
Power up the Metal Shear
Plug in the equipment and turn it on. Check the bed of the sheet metal shear and make sure that there is nothing on it like dirt or any material that could get in the way of cutting the metal. If there’s some debris on it, turn off the shear and clean it first. Once you’ve cleaned it you can begin again.
Cut the Metal
Place the sheet metal on the bed of the shear. Be careful, because it is already running at this point and make sure not to get in contact with the blade. This goes for the sheet metal, as well. You will then find a back-gauge on the sheet metal shear and adjust it in order to cut the metal about a half inch larger than the target size.
Cut the Other Sides of Metal
Turn the metal 90° and set the side that was just cut on the squaring bar on the bed. Place the tape measure of the shear at the end of the metal and pull it across to define a measuring system. Now make a measurement that is one inch longer than that of your final target length. Set the metal against the squaring bar and step on the pedal of the sheet metal shear. The sheet metal will then be cut.
Repeat Step 4
Turn the metal sheet again and set it on the squaring bar. Do the same things that were done in the previous steps until you get the target measurement of your sheet metal.
Check the Output
Remove the sheet metal from the bed and inspect it, checking to see if it is of the right size. If there are still irregularities in the measurements and shape, put it back on the bed and repeat Step 4. Once the sheet metal has been sheared perfectly, remove from the bed and set it aside.
Clean and Store
Now that it has completed its task, you should shut down the machine and set it aside properly. Turn off the main power switch of the equipment. Clean the bed of any dirt and contaminants. Carefully clean the blade with a brush to remove any metal shavings. Unplug it from the socket and roll up the cord and set it aside. Cover the sheet metal shear with a waterproof material to prevent it from getting wet and accumulating rust.
1)The guillotine cutting machine is strictly prohibited from overloading.
2)The bolts, nuts, pins and other fasteners used on the sheet metal guillotine cutter machine must have anti-loosening measures.
3)During the operation of the rigid clutch, it should be ensured that there is no obvious impact sound on the rotating pins and keys.
4)When cutting small materials, padding should be adopted to prevent accidents caused by improper pressing.
5)Frequently check whether the tie rod is out of order and whether the fastening bolt is loose.
6)When the sheet is cut to the end, do not put your fingers under the sheet to feed the material, and do not cut two pieces of material at the same time on the same machine tool.
It is strictly forbidden to shear quenched steel, high-speed steel, alloy tool steel, cast iron and brittle materials.
When multiple people assist the work, a special person should be designated to direct and operate the foot switch.
The motor must not be started with load, and the clutch should be disengaged before driving.
It is forbidden to use machine tools to process super-long and super-thick objects.
Before working, turn the pulley a few times by hand to observe the movement of the blade.
No one is allowed to stand behind the guillotine shear machine and receive materials.
The sheet metal cnc guillotine shearing machine must be stopped for adjustment and cleaning.
After adjusting the blade, be sure to carry out manual test and no-load running test.
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Frequently Asked Questions about Guillotine Metal Shear
Q: What is a guillotine shear?
The sheet metal guillotine cutter includes hydraulic, mechanical, and pneumatic shears. Hydraulic shears use hydraulic cylinders to apply force to the blade, while mechanical shears use a mechanical lever system to apply force. It is driven by the hydraulic motor for the press. It cuts the sheet metal with a fixed lower blade and moving upper blades that travel in the guide route. Pneumatic shears use compressed air to power the cutting process.
Q: How does the guillotine shear work?
Q: What is the type of guillotine shearing machine?
A CNC guillotine shearing machine is divided into two main types: flatbed and rocking bed models. Both types use the same blade mechanism but differ in blade design, tooling arrangement, and process control reliability.
Q: What are the operating precautions for a guillotine shearing machine?
Q: What PPE is required for a metal shear cutter?
Q: Why is it important to set the guillotine shearing machine blade clearance before cutting plates?
Q: How do guillotines cut the metal?
Q: Can we adjust the cutting angle of the guillotine plate shears?
Q: What is the blade gap on a metal guillotine?
Q: How is a guillotine activated?
Q: What can a metal shear cut?
Q: What are metal shears called?
We're well-known as one of the leading guillotine metal shear manufacturers and suppliers in China. If you're going to buy high quality guillotine metal shear made in China, welcome to get more information from our factory. Also, customized service is available.
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