CNC Guillotine Shear 8×6000 with Front Feeding system

full CNC hydraulic guillotine shearing machine

8mm x 6000mm with front feeding table CNC Guillotine Shear is one big machine we supplied for china military factory. The feeding table is 2.5m width, 3m feeding stroke. The shearing machine is guillotine type, cutting angle adjustable. Front feeder will hold long plate positioning automaticly. it will easy operation for people. with high chrome steel blades, it can cut stainless plate. CNC controller can be E21 or DELEM. front feeder is with ball screw and liner guide, cutting accuracy is high.

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Item QC11K-8X2500/3000
Max shearing thickness (mm) 8
Shearing length(mm) 6000
Plate material strength(Mpa) 450
Shearing Angle(degree) 0.5~2
Shearing times per min( /min) 7
Volume of Oil Tank (L) 790
Main power(Kw) 22
CNC FEEDING UNIT
max stroke (mm) 3000
Positioning accuracy (mm) +/-0.1/300
Clamp numbers 5
Compressed air (Mpa) 0.6
Overall dimension LxWxH (mm) 6690x6090x3000

feeding guillotine shearing machine-8x60 cnc feeding guillotine shear -632

  1. How to adjust CNC Guillotine Shear blades gap?

    To cut metal sheet , we shall set proper up / down CNC Guillotine Shear 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.
    CNC 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 CNC Guillotine Shear machine cutting angle to improve edge performance.
    2. For Harder plate material, we shall use high chrome and harder CNC Guillotine Shear blades, like Cr12MoV, H13;
    3. For harder material cutting, we shall use higher capacity CNC Guillotine Shear 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 CNC Guillotine 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 CNC 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 CNC Guillotine Shear cutting angle.
    • On CNC Guillotine Shear 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 CNC 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 CNC Guillotine Shear 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.
    • CNC Guillotine Shear 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.