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.

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 no

t 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.

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.

APPLICATION:-

Micro Hydraulic Shearing machines are basically used for:

  • Shearing / Sheet cutting

Download Technical Specification of Variable Rake Angle NC Hydraulic Shearing Press

TECHNICAL DETAILS OF SHEARING
MODEL
Shearing Length Sh. Thickness Rake Angle Rake Angle Range Stroke/Minute at min. & max. Rake Angle Hold Downs Holding Force Kgs. Power H.P Packing Dimension (LXBXH) Approx Weight kgs.
M.S. S.S.
Nominal Maximum Nominal Maximum
Rake Angle Rake Angle Rake Angle Rake Angle
MHPL-NC 2X25 2500 2 3.15 1 1.6 1 ⁰ 0.5-2 ⁰ 22-10 13 1800 3 2950X1650X1550 2600
MHPL-NC 2X30 3000 2 3.15 1 1.6 1 ⁰ 0.5-2 ⁰ 18-8 15 1800 3 3450X1650X1550 2900
MHPL-NC 3X15 1500 3.15 4 2 3 1 ⁰ 15′ 0.5-2 ⁰ 24-10 8 2000 5 2300X1900X2100 2150
MHPL-NC 3X25 2500 3.15 4 2 3 1 ⁰ 15′ 0.5-2 ⁰ 28-13 13 2500 5 3250X1900X2000 3600
MHPL-NC 3X30 3000 3.15 4 2 3 1 ⁰ 15′ 0.5-2 ⁰ 24-9 15 2500 5 3750X1900X2000 4150
MHPL-NC 4X15 1500 4 6 3 4 1 ⁰ 37′ 0.5-3 ⁰ 24-10 8 4500 5 2300X1900X2100 3400
MHPL-NC 4X20 2000 4 6 3 4 1 ⁰ 37′ 0.5-3 ⁰ 22-8 11 6200 7.5 2850X1950X2100 3700
MHPL-NC 4X25 2500 4 6 3 4 1 ⁰ 37′ 0.5-3 ⁰ 22-8 13 8000 7.5 3400X2350X2500 5200
MHPL-NC 4X30 3000 4 6 3 4 1 ⁰ 37′ 0.5-3 ⁰ 18-6 15 10000 10 3800X2350X2500 6200
MHPL-NC 4X40 4000 4 6 3 4 1 ⁰ 45′ 0.5-3 ⁰ 24-8 20 12000 10 4600X2350X2500 8200
MHPL-NC 6X15 1500 6 8 4 6 1 ⁰ 45′ 0.5-3 ⁰ 22-7 8 6500 10 2350X2000X2200 4200
MHPL-NC 6X20 2000 6 8 4 6 1 ⁰ 45′ 0.5-3 ⁰ 28-8 11 65000 10 2850X2000X2200 4500
MHPL-NC 6X25 2500 6 8 4 6 1 ⁰ 45′ 0.5-3 ⁰ 24-6 13 8500 15 3400X2350X2600 6200
MHPL-NC 6X30 3000 6 8 4 6 1 ⁰ 45′ 0.5-3 ⁰ 24-6 15 10800 15 3900X2350X2600 6700
MHPL-NC 2X39 4000 6 8 4 6 2 ⁰ 0.5-3 ⁰ 22-10 20 13600 20 4900X2350X2600 8400
MHPL-NC 8X15 1500 8 10 8 2 ⁰ 0.5-3 ⁰ 18-8 8 10500 15 2350X2150X2300 5400
MHPL-NC 8X20 2000 8 10 6 8 2 ⁰ 0.5-3 ⁰ 24-8 11 12000 15 2850X2150X2300 6100
MHPL-NC 8X25 2500 8 10 6 8 2 ⁰ 0.5-3 ⁰ 20-6 13 16500 20 3400X2450X2300 7700
MHPL-NC 8X30 3000 8 10 6 8 2 ⁰ 0.5-3 ⁰ 20-8 15 18500 20 4000X2550X2800 9300
MHPL-NC 8X40 4000 8 10 6 8 2 ⁰ 0.5-3 ⁰ 20-10 20 23000 30 49002450X2700 12800
MHPL-NC 10X15 1500 10 13 8 10 2 ⁰ 0.5-3 ⁰ 18-8 8 10500 15 2350X2150X2400 6300
MHPL-NC 10X20 2000 10 13 8 10 2 ⁰ 0.5-3 ⁰ 24-8 11 13500 15 2850X2150X2400 7200
MHPL-NC 10X25 2500 10 13 8 10 2 ⁰ 0.5-3 ⁰ 20-6 13 17500 20 3400X2600X2900 9300
MHPL-NC 10X30 3000 10 13 8 10 2 ⁰ 0.5-3 ⁰ 13-5 15 20000 20 3900X2600X2900 11800
MHPL-NC 10X40 4000 10 13 8 10 2 ⁰ 0.5-3 ⁰ 15-10 20 25000 30 4900X2600X2900 15500
MHPL-NC 13X20 2000 13 16 10 13 2 ⁰ 0.5-3 ⁰ 11 16500 20 2850X2300X2600 7300
MHPL-NC 13X25 2500 13 16 10 13 2 ⁰ 0.5-3 ⁰ 13 32000 25 3450X2750X2900 9300
MHPL-NC 13X30 3000 13 16 10 13 2 ⁰ 0.5-3 ⁰ 16 37000 25 3900X2700X2900 12300
MHPL-NC 13X40 4000 13 16 10 13 2 ⁰ 0.5-3 ⁰ 20 22000 30 4950X2300X2900 15800
MHPL-NC 16X20 2000 16 20 13 16 2 ⁰ 0.5-3 ⁰ 11 22000 25 2850X2300X2900 12300
MHPL-NC 16X25 2500 16 20 13 16 2 ⁰ 0.5-3 ⁰ 13 40000 30 3600X2700X3000 15300
MHPL-NC 16X30 3000 16 20 13 16 2 ⁰ 0.5-3 ⁰ 16 43500 30 4100X2700X3000 17800
MHPL-NC 16X40 4000 16 20 13 16 2 ⁰ 0.5-3 ⁰ 20 30000 30 5200X2850X3000 20800
MHPL-NC 20X20 2000 20 25 16 20 2 ⁰ 0.5-3 ⁰ 11 32000 40 3000X2600X2700 17800
MHPL-NC 20X25 2500 20 25 16 20 2 ⁰ 0.5-3 ⁰ 13 48000 40 3600X2850X3100 18800
MHPL-NC 20X30 3000 20 25 16 20 2 ⁰ 0.5-3 ⁰ 16 52000 40 4100X2850X3100 20800
MHPL-NC 20X40 4000 20 25 16 20 2 ⁰ 0.5-3 ⁰ 20 30000 50 5200X2900X3100 24800
Machine GA Drawing
MHPL 625
MHPL 632
MHPL 825
MHPL 832
MHPL 1025
MHPL 1032
MHPL 1225
MHPL 1232

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

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