Front Feeding Guillotine Shear 6×2500 CNC

CNC front feeding shearing machine

For thin and big size plate cutting, Hydraulic Front Feeding Guillotine Shear is better selection. Front working table is with pneumatic or hydraulic clamps to hold plate. CNC controller will control feeding position. CNC controller can control programable front gauge or blades gap. normally feeding table can be 2m width, 2.5m or 3m long feeding stroke. The machine will have no back gauge, we can optional supplier rear side plate collection table or carriage. The shearing machine can be guillotine type or swing beam type.

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TECHNICAL FEATURES

  • Hydraulic Feeding Guillotine Shear is with Variable-rake, Shearing angle adjustable;
  • Feeding platform is with high accuracy long stroke ball screw and linear guide drive;
  • Hydraulic Feeding Guillotine Shear has Pneumatic clamps to hold sheet metal from far end;
  • Professional Hydraulic Feeding Guillotine Shear CNC system control front feeding platform, easy to operate;
  • The front feeding platform adopts rolling ball over the table, to reduce resistance during feeding to avoid scratch on the surface of working table;
  1. How to adjust Front Feeding Guillotine Shear blades gap?

    To cut metal sheet , we shall set proper up / down blades gap. The proper shear blades gap will affect on cutting force and plate cutting edge. For low elongation metal plate, we shall use smaller gap.
    Front Feeding Guillotine Shear Blade 

    GAP = K * t (plate thickness)

    • Mild steel (Q235, Q345): K = 0.1
    • Stainless steel (201, 304, 316):  K = 0.06~0.08
    • AL, copper : K = 0.6
    • Weldox (700, 900, 960): K = 0.12~0.16
    • Hardox (400 ): K = 0.16~0.18

    NOTE:  

    1. After first cutting, we shall check cutting edge performance. We may need to increase or decrease to improve edge performance.
    2. For Harder plate material, we shall use high chrome and harder shear blades, like Cr12MoV, H13;
    3. For harder material cutting, we shall use higher capacity shearing machine. The cutting force can be 2 times than mild steel for SS plate, Or even more for other harder plate. We shall keep blades edge sharp during cutting.
    4. For Hydraulic Plate Shear, we can directly adjust blades gap on CNC controller. while for manual metal plate shear, we can adjust blades gap by adjust handle manually.
  2. How to adjust Front Feeding Guillotine Shear cutting angle / rake angle?
    • Only Hydraulic guillotine type Hydraulic Sheet Shearing Machine’s cutting angle is adjustable. For swing beam shear, top beam shearing angle is fixed.
    • Hydraulic guillotine shear’s cylinders are connected in series. It means big cylinder down chamber is connected with small cylinder’s top chamber by hydraulic pipe or hose.  Increase or decrease oil volume can adjust small cylinder’s relative position of small cylinder. so that we can adjust shearing angle.
    • On control panel, turn the key switch to angle, push increase or decrease button to adjust shearing angle.
    • For thin plate, smaller shearing angle can reduce edge twist. For bigger thickness plate, bigger shearing angle can reduce cutting force needed.
  3. How to Exchange Front Feeding Guillotine Shear blades and how to sharp blades edge?
    • For Hydraulic guillotine shear, top/down blades has 4 cutting edge. for swing beam type shear, top blades have 2 cutting edge, bottom blades have 4 edge. we can directly take off blades and change cutting edge. Before use the machine, we shall make sure that the blades are fixed and gap even. otherwise, we may damage the blades.
    • When all blades edge is not blunt. We shall take off the blades complete (top / down). Put all same set blades over surface grinder to sharp them. we must make sure same set blades thickness is equal.
    • Shearing machine’s top blades are fixed by bolts only. bottom blades are fixed over square block. We must calibrate shearing gap before working. method is different for different model machine. consult our engineer for detail.
Item QC12K-6X2500/2500 QC12K-6X3200/3000
Max shearing thickness (mm) 6 6
Shearing length(mm) 2500 3200
Plate material strength(Mpa) 450 450
Shearing Angle(degree) 1.5 1.5
Shearing times per min( /min) 18 14
Volume of Oil Tank (L) 250 250
Main power(Kw) 7.5 7.5
CNC FEEDING UNIT
max stroke (mm) 2500 3000
Positioning accuracy (mm) +/-0.1/300 +/-0.1/300
Clamp numbers 5 7
Compressed air (Mpa) 0.6 0.6
Overall dimension LxWxH (mm) 4990x3290x1730 5650x4000x1730

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