Description
SUNKKO 737G 4.3KW Battery Spot Welder Automatic Pulse Spot Welding Machine for 18650 14500 — BOLTON SKU 56175.
About the SUNKKO 737G Spot Welder, 4.3kW Pulse
The SUNKKO 737G 4.3KW Battery Spot Welder is a benchtop pulse spot-welding machine in SUNKKO’s 737G series, used to weld nickel strip onto cylindrical lithium cells such as 18650 and 14500 formats when assembling battery packs. This listing is the 4.3 kW (instantaneous) power variant. The machine delivers controlled welding pulses through a fixed welding head, with a foot switch for hands-free triggering while cells and strip are positioned, and an LCD panel for monitoring pulse and current settings. Pulse spot welding joins the strip to the cell terminal in milliseconds without the sustained heat of soldering, which limits heat transfer into the cell during pack assembly. SUNKKO 737-series welders are supplied with battery-fixture accessories and sample nickel strip for setup.
Key specifications
| Type | Pulse battery spot welder (benchtop) |
|---|---|
| Series | SUNKKO 737G |
| Power | 4.3 kW (instantaneous) |
| Compatible cells | 18650, 14500 and similar cylindrical lithium cells |
| Welding medium | Nickel / nickel-plated steel strip |
| Operation | Fixed welding head with foot-switch trigger |
| Interface | LCD display of pulse and current settings |
Typical applications
This class of spot welder is used in battery pack prototyping, repair and small-batch production — building packs for portable equipment, robotics, UAV and e-mobility projects from cylindrical cells. The foot-switch and fixed-head arrangement suits repetitive strip-to-cell welds on a bench.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
Reviews
There are no reviews yet.