CNC Metal Plate Shear 30mm Guillotine type


  • CNC Metal Plate Shear is with Variable-rake, Shearing angle adjustable. Generally we call it guillotine shear.
  • High quality plate welded structure will provide CNC Metal Plate Shear with high rigidity and shearing accuracy. so that we can warrantee longer machine life.
  • Series left and right cylinders drive top shearing beam vertical move. while the swing beam shear is different.
  • CNC control system can program on CNC Metal Plate Shear back gauge;
  • CNC Metal Plate Shear Back gauge is equipped with high accuracy ball screw. so that we can get higher accuracy.
  • Hydraulic shearing machine Back gauge has retract function.
  • The hydraulic system includes valve block, lower noise and high efficient gear pump, left/right hydraulic cylinders.
  • CNC Metal Plate Shear is with hydraulic hold down system. It will perfectly avoid plate curve during cutting.
  • Electric and hydraulic system overload protection. For sure, electric and hydraulic safety is important. guillotine shearing machine 30mmx6m
  • CNC Metal Plate Shear blades is made from special alloy material with proper heat treatment; four cutting edges on both up and down blades as normal.
  • Movable foot switch control plate shearing, with emergency stop.
  • Front support arms are with rulers, T-slot and flip-stop. so that operator can stop or measure cutting dimension even without back gauge.
  • Working table is with ball or roller transfers as normal;  obviously it will easy operator’s work.
  • Shadow line facility is with fluorescent lighting. so that it can make operation easy.
  • Front finger protection, rear protection fence and side throat guards. For sure, safety is important.
  • CNC Metal Plate Shear Oil tank is with level and temperature indicator.
  1. How to adjust CNC Metal Plate Shear machine blades gap?

    As we know, to cut metal sheet , we shall set proper up / down blades gap. Because the proper shear blades gap will affect on cutting force and plate cutting edge. While For low elongation metal plate, we shall use smaller gap.
    CNC Metal Plate Shear machineBlade 

    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


    1. Normally after first cutting, we shall check cutting edge performance. sometime we may need to increase or decrease to improve edge performance.
    2. If for Harder plate material, we shall use high chrome and harder shear blades, like Cr12MoV, H13;
    3. And For harder material cutting, we shall use higher capacity shearing machine. The cutting force can be 2 times of mild steel for SS plate, Or even more for other harder plate. We shall keep blades edge sharp during cutting.
    4. 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 Metal Plate Shear cutting angle / rake angle?
    • Only Hydraulic guillotine type metal plate shearing machine’s cutting angle is adjustable. but For swing beam shear, top beam shearing angle is fixed.
    • Because 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.
    • If for thin plate, smaller shearing angle can reduce edge twist. But For bigger thickness plate, bigger shearing angle can reduce cutting force.
  3. How to Exchange shear blades and how to sharp blades edge?
    • For Hydraulic guillotine shear, top/down blades has 4 cutting edge as normal. But for swing beam type shear, top blades have 2 cutting edges and bottom blades have 4 edges usually. 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 sharp. We shall take off the blades complete (top / down). Make sure that put all same set blades over surface grinder to sharp them. we must make sure same set blades thickness is equal.
    • As we know, Shearing machine’s top blades are fixed by bolts only. bottom blades are fixed over square block. We must calibrate shearing gap before working. while method is different for different model machine. so please consult our engineer for detail.
Item QC11K-30X2500 QC11K-30X6000
Max shearing thickness (mm) 30 30
Shearing length(mm) 2500 6000
Plate material strength(Mpa) 450 450
Shearing Angle(degree) 0.5~3.5 0.5~3.5
Hold down cylinder number 12 26
Shearing times per min( /min) 4 5
Back gauge stroke (mm) 20-1000 20-1000
Volume of Oil Tank (L) 1000 2300
Main power(Kw) 55 2X37
Weight(KGs) 27,000 70,000
Overall dimension(L×W×H mm) 3750×2500×3000 7500×3000×3950