Overview

GENERAL OVERVIEW :-

Shearing, also known as die cutting, is a process which cuts stock without the formation of chips or the use of burning or melting. In strict technical terms, the process of “shearing” involves the use of straight cutting bladesorm of sheet metal or plates, however rods can also be sheared. Shearing-type operations include: blanking, piercing, roll slitting, and trimming.
The machine used is called a squaring shear, power shear, or guillotine. The machine may be foot powered (or 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. This decreases the amount of force required, but increases the stroke. A 5 degree shear angle decreases the force by about 20%. The amount of energy used is still the same. The moving blade may also be inclined 0.5 to 2.5°, this angle is called the rake angle, to keep the material from becoming wedged between the blades, however it compromises the squareness of the edge. As far as equipment is concerned, 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 while being sheared. 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 is being cut where it is supposed to be.

general over

A schematic showing positive (left) and negative (right) rake angles.

The design of press tools is an engineering compromise. A sharp edge, strength and durability are ideal, however a sharp edge is not very strong or durable so blades for metal work tend to be square-edged rather than knife-edged. Typical workpiece materials include aluminum, brass, bronze, and mild steel because of their outstanding shearability ratings, however, stainless steel is not used as much due to its tendencies to work-harden.
Other types of geometrical possibilities include the squaring shear, angle shear, bow-tie shear and bar shear. All of these have many different uses and are all used regularly in certain manufacturing fields.

shearing machine

We have with us rich industry experience in successfully handling the demands of precision engineered and optimum functionality based range of Shearing Presses. These are designed and developed to shear plates with clean square edges. Further, these come with close working tolerances with options of different rake angles. With our capability of offering these in different sizes, the superior box construction of these Shearing Machines provides in them desired structural rigidity.

Here, our rich industry experience allows us to offer these machines in customized finish specifications so as to meet client’s specific work process requirements. Further, the offered machines being powerful and at the same time simple to operate, these come with most hold- down and shearing capabilities than any other industrial shear machine available in the market.

Applications

APPLICATION:-

Micro Hydraulic Shearing machines are basically used for:

  • Shearing / Sheet cutting

application

Salient Features

SALIENT FEATURE:

Some of the standard features of these hydraulic shearing machines include :

  • Shears designed for achieving high shearing consistency across entire length of shear
  • Based on superior drive system that is designed to withstand high tonnage of shears
  • Backed by innovative shock-absorbing technology
  • Designed to eliminate need for special foundation
  • Superior drive system that allows ram to slide directly above shearing line so as to achieve maximum
  • precision and stroke consistency
  • PLC based touch screen control
  • Ram guided by three point roller guides with replaceable hardened liners
  • Variable rake angle adjustment through selector switch
  • Rapid blade gap adjustment by levers calibrated in thickness

Some of the standard specifications of these machines include :

  • Shearing machines feature rigid Ram roller guided system
  • Machines come with HCHCr Blade and Low Fixed Rake angle that assists in providing quality cutting
  • Control valves and seals used in these hydraulic systems and cylinders sourced from leading manufacturers REXROTH, YUKEN, PARKER, ensuring their delivering superior functional values
Technical Specifications

To view Technical Specifications Click Here

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