Wide Voltage 220–240V Design · No Transformer Required · Plug-and-Operate
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220–240V Single-Phase metal Laser Welding Machine
Key Advantages
✅Fully compatible with U.S. 240V single-phase power systems
✅No step-up or step-down transformer required
✅Suitable for residential and light industrial 240V circuits
✅Can be connected to circuits similar to those used for air conditioners, dryers, and electric ovens

Why Can a 220–240V Machine Operate Reliably in the United States?
In the United States, residential and light industrial facilities commonly use a 240V / 60Hz single-phase power supply system.
This system consists of two 120V lines with a 180° phase difference. When combined, they provide a stable 240V output.
Our laser welding machine is engineered with:
✨Wide input voltage range (220–240V)
✨Automatic dual-frequency adaptation (50Hz / 60Hz)
✨Intelligent voltage detection and protection system
As a result, the machine operates directly and safely on the U.S. 240V / 60Hz grid without the need for a transformer or voltage conversion equipment.
U.S. 240V Single-Phase Power Structure
A typical U.S. 240V circuit includes:
🔥L1 (Hot Line 1)
🔥L2 (Hot Line 2)
🔥PE (Protective Ground)
Connection method:
Single-phase 240V (L1 + L2 + Ground)
📢It is strongly recommended that the laser equipment be connected to a dedicated 240V circuit and installed by a licensed electrician in accordance with local electrical codes.
Frequently Asked Questions
Q: Is three-phase power required?
A: No. The machine operates on single-phase 220–240V power only.
Q: Is a transformer needed in the United States?
A: No. The machine can be directly connected to standard U.S. 240V single-phase power.
Q: Can it be used in a home garage or small workshop?
A: Yes. Many U.S. homes and workshops already have 240V circuits available.
Q: Should it be connected with a plug or hardwired?
A: For safety and operational stability, a dedicated hardwired circuit installed by a licensed electrician is recommended.
Q: What happens if the voltage exceeds the safe range?
A: The machine is equipped with built-in voltage protection. If abnormal voltage is detected, it will automatically enter protection mode and issue an alarm to prevent component damage.

👉 Interested in learning more about our laser cutting, welding, or cleaning machines? Feel free to contact Us：+86 15314155887—he’s ready to provide expert guidance and the ideal solution for your needs.