Shearing Machine for Sale

When you apply a high-pressure tool through a metal plate and remove part of the metal, the process is called shearing. Shearing is one of the oldest metalworking processes available and is usually the first process. The electric shearing machine is used when manufacturing fabricated parts. It is industrial equipment with rotary disks and blades used to cut hard iron sheets and metal bars. Hydraulic shearing machines are used to cut circular blanks and rings from metal and are operated by an electric motor. The best types of metal for shearing are bronze, aluminum, brass, and mild steel. Sheet metal shearing machine is cost-effective and easy and hence preferred in industries and even homes.

A shearing machine for sale is used for cutting sheet metal to size out of a larger flat stock or from roll stock. The metal to be cut is held in place with hold-downs. 90°cuts are positioned by a squaring arm with a scale on it or with a back gauge. Other angles are possible with an angle gauge. Large machines with shadow cut lines will have a light that shines over a wire which projects a thin shadow line exactly where the cut line is which is useful if you mark your metal with a tape measure. The shearing process can produce a shear edge burr, which can be minimized to less than 10% of the material thickness. This is a function of clearance between the blades, and the sharpness of the cutting blades.

A quality electric sheet metal shear can save many hours on further processes such as bending, welding, and assembly so it is important that you ensure you are capable of making quality, clean cuts that are square, accurate, and can be repeated quickly. When it comes to shearing metal, BLMA, China's top 10 shearing machine manufacturers, offers a selection of high quality, high production hydraulic sheet metal shearing machines for sale that are a cut above the competition. Our shearing machine for sale has a CNC control that adjusts blade clearance, cut length, and cutting angle automatically. BLMA sheet cutting shearing machines have a heavy and robust swing arm, with a proven reliable designed frame.

QC12K/Y NC Hydraulic Metal Cutting Shear Shearing Machine Manufacturers

●Accurate backgauge positioning up to 0.01mm
●Swing beam shear with Backgauge retraction function
●E21S NC controller with sequence repeat function
●Quick blade clearance adjustment with manual handle shank
●High quality blades for cutting mild steel,aluminum,stainless steel

QC11K Hydraulic CNC Guillotine Sheet Metal Shear Cutting Machine

●Quick cutting length adjustment
●Optional CNC front feeding table
●Optional rear pneumatic sheet supporter
●Cutting angle and blade gap with Electric control
●E21S with backguage sequence repeat and distance control
●Upper and lower Guillotine shear blades with four-side cutting edges

The Principle of Shearing Machine for Sale

A hydraulic shearing machine is a machine that shears a sheet by reciprocating linear motion with one blade relative to the other blade. It is driven by the hydraulic system to press the pressing material to press the steel plate. By means of the moving upper blade and the fixed lower blade, a reasonable blade gap is applied to apply shearing force to the metal sheets of various thicknesses, so that the plates are broken and separated according to the required size. A support ball is mounted on the workbench so that the sheet is not scratched when it slides over it. The back gauge is used for sheet positioning and the position is adjusted by the motor. The press cylinder is used to press the sheet to prevent the sheet from moving during shearing. The guardrail is a safety device to prevent accidents. The return process is driven by nitrogen gas, the speed is fast and the impact is small.

The Main Parts of Sheet Metal Shearing Machine

1. Main Frame
The mainframe of the hydraulic shearing machine is the “backbone” of its operation. It is what supports all the other components, bed, and drive system.  A quality sheet metal shear for sale has a tough and heavy frame for the material size and rating. If the frame is bent, broken, or even weakened due to engineering or usage, it’s something that needs to be aware of. Some lightly built shears are known to be susceptible to having fractured side frames, cracked beds, or warped rams due to poor design or abuse. Check to see if the hydraulic sheet metal shear you’re wanting to buy has a lightweight or heavy-duty frame. This could change which machine you buy to fit your operational needs. 

2. Bed
The bed is where the operator works and feeds materials into the sheet metal shearing machine. The bed is the support for not only the material but also the lower shearing blade.  A quality hydraulic shears bed should be heavy and solid with conveniences for material handling, like cutouts for the operator to slip his hands under the sheet of material for lifting.

3. Squaring Arm
The squaring arm does as the name implies. It squares up the material that you feed into the hydraulic shearing machine. A squaring arm is crucial in ensuring the material being cut is at shear squaring arm a square 90 degrees.  In order to achieve proper squareness, a squaring arm is used that has been set up and adjusted to ensure it is perfectly square to the shearing blades.  This squaring arm can also have a measuring scale on it which can help in measuring very short sheared parts from the front of the machine as opposed to using the gage bar as a stop behind the shear blades.  Typically the squaring arm is equal to the length of the shear blades. A squaring arm needs to be secure and accurate. 

4. Hold Downs
The clamps (hold downs) are what hold the material in place to prevent it from moving during the shearing process, and most importantly for tipping up which would introduce the material as a wedge between the upper and lower blades forcing the blades to gap wider. Make sure the clamps have enough strength to counter the shearing blade during cuts so that you don’t get any tip. Typically the more force and number of hold downs equates to the sign of a better and higher quality sheet metal shear.

5. Blades
The cutting (or shearing) blades are typically tool steel and are hardened for wear resistance and ground for sharpness. They are mounted on the upper moving ram and the lower fixed bed and gapped usually just a few thousandths of an inch apart.  The blades can be “flipped” when worn from progressive use to another side, resharpened or replaced. Hydraulic sheet metal shearing machines typically have blades that have 2 sharp sides or 4 sides for use depending on the design of the machine.

Types of Shearing Machine for Sale

The Advantages of Hydraulic Shearing Machine

The Applications of Hydraulic Sheet Metal Shearing Machine