TECHNICAL FEATURES
- High quality plate welded structure will provide Hydraulic Sheet Metal Shear machine with high rigidity and shearing accuracy;
- Hydraulic Sheet Metal Shear Triangle stable welded top shearing beam swing up down around self-aligning bearing;
- NC control system can program on Hydraulic Sheet Metal Shear back gauge;
- Normal Hydraulic Sheet Metal Shear is with T screw. NC Shear Back gauge is equipped with high accuracy ball screw
- Swing-up back gauge system for shearing longer pieces than maximum back gauge range
- NC Hydraulic Sheet Metal Shear Back gauge has retract function
- The hydraulic system includes valve block, lower noise and high efficient gear pump, left/right hydraulic cylinders.
- Hydraulic Sheet Metal Shear is With shearing plate hydraulic hold down system
- Electric and hydraulic system overload protection
- Hydraulic Sheet Metal Shear blades is made from special alloy material with proper heat treatment; two cutting edges one top blades; four cutting edges on down blades
- Movable foot switch control plate shearing, with emergency stop
- Front support arms are with ruller, T-slot and flip-stop
- Working table is with ball or roller transfers;
- Shadow line facility with fluorescent lighting
- Front finger protection, rear protection fence and side throat guards
- Hydraulic Sheet Metal Shear Oil tank is with level and temperature indicator.
| Item | QC12Y-16X2500 | QC12Y-16X3200 | QC12Y-16X4000 |
| Max shearing thickness (mm) | 16 | 16 | 16 |
| Shearing length(mm) | 2500 | 3200 | 4000 |
| Plate material strength(Mpa) | 450 | 450 | 450 |
| Shearing Angle(degree) | 2 | 2 | 2 |
| Hold down cylinder number | 12 | 14 | 15 |
| Shearing times per min( /min) | 8 | 7 | 7 |
| Back gauge stroke (mm) | 20-800 | 20-800 | 20-800 |
| Volume of Oil Tank (L) | 390 | 570 | 715 |
| Main power(Kw) | 18.5 | 18.5 | 30 |
| Weight(KGs) | 11,500 | 14,500 | 20,000 |
| Overall dimension(L×W×H mm) | 3440×2050×2150 | 4150×2200×2200 | 4900×2300×2300 |
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How to adjust Hydraulic Sheet Metal 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.
Hydraulic Sheet Metal Shear BladeGAP = 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:
- After first cutting, we shall check cutting edge performance. We may need to increase or decrease to improve edge performance.
- For Harder plate material, we shall use high chrome and harder shear blades, like Cr12MoV, H13;
- 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.
- For Hydraulic Sheet Metal 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.
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How to adjust Hydraulic Sheet Metal 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.
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How to Exchange Hydraulic Sheet Metal 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.
