Sunkko 737DH

The 737DH is a dual-head spot welding machine designed for high-efficiency battery pack assembly. It provides stable, precise, and consistent welding for multiple cells simultaneously, improving productivity and reliability.

Sunkko 737DH

AC WELDING MACHINES SERIES
Dual-Head Precision for Faster Welding.

The 737DH is a dual-head spot welding machine designed for high-efficiency battery pack assembly. It provides stable, precise, and consistent welding for multiple cells simultaneously, improving productivity and reliability.

Key Specifications

Model name
737DH
Power supply
AC 110V/220V±20V
Output power
4.3KW (Max.)
4 Pulses time
2~20ms

Technical Specifications

Double pulses time 1~10ms
Welding thickness 0.15~0.35mm(fixed head)/0.05~0.25mm(spot welding pen)
Welding current 120~1200A
Welding needle spacing 2~7mm
Size of welding pin ∅1.5mmX7mm
Total length of ≈580mm
Welding pen cable area 16mm2
Weight Approx. 1.4 kg

Key Features

  • Delayed welding function with 3-level power adjustment for precise welding.
  • Real-time current display to monitor output.
  • Supports fixed and mobile spot welding methods.
  • External foot switch for precise control.
  • Adjustable welding head pressure for reliable welds.
  • 2/4/6/8 pulse selection for strong welding points.
  • Automatic inductive discharge for fast welding of large battery packs.

Applications

  • Lithium battery pack
  • Strain gauge
  • Stainless steel mesh
  • Circuit board
  • Portable charger

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