Projection Welding Machine
Key Features :
- Suitable for weld nuts, bolts, studs, mesh and cross wire welding
- High-strength and consistent projection weld quality
- Heavy-duty machine structure for long service life
- Water-cooled arms and electrodes
- Pneumatic pressure system for uniform electrode force
- Low maintenance and reliable performance
- Ideal for automotive and sheet-metal fabrication applications
Description
Projection Welding Machine
Projection Welding Machines are specially designed for high-strength, repeatable welding of weld nuts, weld bolts, cross wires and mesh on mild steel and stainless steel sheets. These machines ensure precise current control, uniform weld quality and high productivity, making them ideal for automotive, fabrication and industrial manufacturing applications.
Model: SP-25PR (25 KVA)
- Projection weld S.S. / M.S. weld nuts and weld bolts
- Sheet thickness range: 1 – 4 mm
- Weld nut / bolt size: M5 – M10
Mild Steel Sheet (M.S. / CRS)
- Thickness: 0.6 – 3.5 mm (2 × mm)
- Thickness: 0.0236″ – 0.1378″ (2 × inches)
- US Sheet Gauge: 10 – 24
- SWG Gauge: 9 – 23
Stainless Steel Sheet (S.S.)
- Thickness: 0.6 – 3.5 mm (2 × mm)
- Thickness: 0.0236″ – 0.1378″ (2 × inches)
- US Sheet Gauge: 10 – 24
- SWG Gauge: 9 – 23
Cross Wire / Mesh Welding
- Mild Steel Cross Wire or Mesh: Ø 1.2 – 7.0 mm
- Stainless Steel Cross Wire or Mesh: Ø 1.2 – 7.0 mm
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Table – Sheet Metal Spot / Projection Welding Application
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Model
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SP-10PR
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SP-15PR
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SP-20PR
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SP-25PR
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SP-30PR
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SP-40PR
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SP-50PR
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SP-75PR
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SP-100PR
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SP-150PR
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SP-200PR
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Rating @ 50% Duty Cycle (KVA)
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10
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15
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20
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25
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30
|
40
|
50
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75
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100
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150
|
200
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Throat Depth (mm)
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460
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Throat Depth (inches)
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18
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Nominal Throat Clearance (mm)
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220
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350
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Nominal Throat Clearance (inches)
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8.6
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14
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Model
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SP-10PR
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SP-15PR
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SP-20PR
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SP-25PR
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SP-30PR
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SP-40PR
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SP-50PR
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SP-75PR
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SP-100PR
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SP-150PR
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SP-200PR
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Welding Range: S.S.lM.S. Weld Nuts and Weld Bolts (M) Welded on Sheet With Thickness Range: 1mm-4mm
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M3–M4
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M4–M6
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M4–M8
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M5–M10
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M6–M12
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M6–M14
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M8–M16
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M8–M18
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M10–M20
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M10–M22
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M12–M25
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Model
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SP-10PR
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SP-15PR
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SP-20PR
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SP-25PR
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SP-30PR
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SP-40PR
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SP-50PR
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SP-75PR
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SP-100PR
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SP-150PR
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SP-200PR
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Welding Range (Thickness) Stainless 2xmm
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Mild Steel Sheet IM.SI
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Max.2xmm
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2.0
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3.0
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3.025
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3.5
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3.75
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4.0
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4.5
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5.0
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6.0
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7.0
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7.5
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Mln.2xmm
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0.2
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0.3
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0.32
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0.6
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0.6
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0.8
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1.0
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1.0
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1.0
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2.0
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2.0
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Stainless Steel Sheet IS.S)
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Max.2xmm
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2.0
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3.0
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3.025
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3.5
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3.75
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4.0
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4.5
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5.0
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6.0
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7.0
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7.5
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Mln.2xmm
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0.2
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0.3
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0.32
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0.6
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0.6
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0.8
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1.0
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1.0
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1.0
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2.0
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2.0
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Model
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SP-10PR
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SP-15PR
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SP-20PR
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SP-25PR
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SP-30PR
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SP-40PR
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SP-50PR
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SP-75PR
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SP-100PR
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SP-150PR
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SP-200PR
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Welding Range (Thickness) Stainless 2x inches
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Mild Steel Sheet IM.SI
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Max.2xmm
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0.0787"
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0.1181"
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0.1279"
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0.1378"
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0.1476"
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0.1575"
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0.1772"
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0.1968"
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0.2362"
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0.2756"
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0.2953"
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Mln.2xmm
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0.0078"
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0.0118"
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0.0126"
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0.0236"
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0.0236"
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0.0314"
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0.0394"
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0.0394"
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0.0394"
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0.0787"
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0.0787"
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Stainless Steel Sheet IS.S)
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Max.2xmm
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0.0787"
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0.1181"
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0.1279"
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0.1378"
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0.1476"
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0.1575"
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0.1772"
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0.1968"
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0.2362"
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0.2756"
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0.2953"
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Mln.2xmm
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0.0078"
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0.0118"
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0.0126"
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0.0236"
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0.0236"
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0.0314"
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0.0394"
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0.0394"
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0.0394"
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0.0787"
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0.0787"
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Max. Available Short Circuit Current (Amps)
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7000
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8000
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9000
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10000
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12000
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14000
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16000
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20000
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24000
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34000
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38000
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Current Control
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By means of 3-6 Position Off-Load Tap Switch or Through Controller Phase Shift Method
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Insulation Class
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F
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Cooling for Arms & Electrodes
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Water
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Pneumatic Air Cylinder size Diameter (mm)
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40
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50
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50
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63
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63
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88
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88
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100
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100
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125
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150
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Pneumatic Air Cylinder Size Diameter (inches)
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1.57"
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1.97"
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1.97"
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2.48"
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2.48"
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3.46"
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3.46"
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3.46"
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3.46"
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4.92"
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4.92"
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Pneumatic Air Cylinder Size Diameter (fraction Inches)
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1 9/16"
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1 31/32"
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1 31/32"
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2 15/32"
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2 15/32"
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3 15/32"
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3 15/32"
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3 15/16"
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3 15/16"
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4 29/32"
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4 29/32"
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Electrode Stroke Max. (mm)
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40
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50
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80
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Compressed Air Line Pressure Approximate – (kg/cm2)
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1–2
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1–2
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1–3
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1–4
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1–4
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2–4
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2–5
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2–5
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2–5
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2–6
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2–6
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Compressed Air Line Pressure Approximate – (bar)
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|||||||||||||
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Compressed Air Line Pressure Approximate· (psi)
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14·30
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14·30
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14·50
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14-60
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14-60 |
30·60
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30·70
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30·70
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30-80
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30·90
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30·90
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Resultant Nominal Electrode Force· Approximate – (kgf)
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12–25
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20–40
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20–60
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30–120
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30–120 |
120–240
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120–305
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155–390
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155–390
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245–735
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350–1060
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Resultant Nominal Electrode Force· Approximate – (Ibf)
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27 – 55
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45 – 94
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45 – 130
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65 – 265
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65 – 265
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265 – 530
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265 – 670
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340 – 860
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340 – 860
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540 -1620
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770 – 2335
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Resultant Nominal Electrode Force· Approximate· (daN)
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12 – 25
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20 – 40
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20 – 50
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30 -120
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30 -120
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120 -235
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120 – 300
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150-380
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150-380
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240 -720
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340 -1040
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Mains Supply Voltage
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415 V AC (±10%)
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Phases
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2
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Frequency (Hz)
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50 / 60
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Mains Supply Cable Size (Copper mm²)
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5
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5
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6
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8
|
8
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10
|
12
|
16
|
24
|
40
|
50
|
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Mains Disconnection Switch (A)
|
40
|
40
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50
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75
|
75
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100
|
150
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200
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250
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350
|
500
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Water at Max. Temp. 30°C (Liters / min)
|
3
|
3
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3.5
|
3.5
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3.5
|
4
|
4
|
4
|
5
|
5
|
6
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