New Product Online: The Revolution Of Transformer Spot Welding Machine


Welcome to the official Heltec Energy product blog! We’re glad to announce that we've accomplished research and design of transformer spot welding machine and we’re introducing the first model -- HT-SW03A.

Compared with the previous models, the new welding method is pneumatic, and it needs to be plugged in for use. This spot welding machine is AC transformer resistance spot welding machine and equipped with an internal air compressor.

High performance microcomputer high-frequency inverter spot welding machine has the world's advanced technology level, and is specially designed based on the extensive application and assembly of lithium batteries (nickel cadmium, nickel hydrogen, lithium batteries) in the world. The welding machine is controlled by a microcomputer single chip and displayed on a large blue LCD screen. It is the latest spot welding machine specially designed for high-end spot welding by our company, with the crystallization of our company's technology for a long time. The welding quality is firm, beautiful, and the performance is more stable and reliable.


  • Pneumatic spot welding
  • Built-in Compressed Air Pump
  • Accurate microcomputer single-chip control
  • Large LCD display
  • Automatic counting function

Product Parameters:

Pulse Power: 6KW

Output Current: 100~1200A

Power Supply: AC110V or 220V

Spot Welding Output Voltage: AC 6V

Duty Cycle: <55%

Downward Pressure of Electrode: 1.5KG(single)

Power Frequency: 50Hz/60Hz

Operating Air Pressure: 0.35~0.55MPa

Plug Type: US pulg, UK plug, EU plug (optional)

Maximum Travel of Electrode: 24mm

Maximum Pressure of Air Source: 0.6Mpa

Noise of Built-in Air Source: 35~40dB

Net Weight: 19.8kg

Total Package Weight: 28kg

Dimension: 50.5*19*34cm

This transformer spot welder is equipped with laser alignment and positioning as well as welding needle lighting device, which can easily improve the accuracy of welding and production efficiency. The pressing and reset speed of the pneumatic spot welding head are independently adjustable, and the adjustment is convenient. The circuit of the pneumatic spot welding head adopts gold-plated contacts, and with digital display screen to display the spot welding voltage and current, which is convenient for observation.

It’s also quipped with an intelligent cooling system to adapt to long-term uninterrupted spot welding operations.


At Heltec Energy, our goal is to provide comprehensive one-stop solutions for battery pack manufacturers. From BMS, active balancer to new transformer spot welding machines and advanced welding techniques, we strive to meet the evolving needs of the industry under one roof. Our dedication to research and development, coupled with our customer-centric approach, ensures that we deliver tailored solutions that address specific challenges and contribute to the success of our clients.

Heltec Energy is your trusted partner in battery pack manufacturing. With our relentless focus on research and development, coupled with our comprehensive range of battery accessories, we offer one-stop solutions to meet the evolving needs of the industry. Our commitment to excellence, tailored solutions, and strong customer partnerships make us the go-to choice for battery pack manufacturers and suppliers worldwide.

If you have any questions or would like to learn more, please don't hesitate to reach out to us.

Post time: Jul-19-2023