500KW High Frequency Pipe Welding Machine

TENYES is a leading manufacturer of high frequency pipe welding machines in China. With over 20 years of experience in the field, TENYES has become a trusted supplier for businesses and contractors looking for a reliable source of high frequency welding machines. TENYES provide excellent after-sales service and technical support to ensure that their customers easily running the welder. The 500KW High Frequency Pipe Welding Machine has more than 20 kinds of protection measures are set up on the whole machine to maximize the stability of the equipment and prevent equipment damage. All alarm information is processed by the control board and sent to the PLC system. Through the display screen, maintenance personnel can easily understand the cause of equipment failure and how to deal with it.

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Product Description

The equipment mainly consists of a transformer, rectifier cabinet, and inverter cabinet. Mainly used in high-frequency straight seam welded pipe production lines.

500KW High Frequency Pipe Welding Machine's working principle:

Ordinary three-phase AC power (line voltage 380V, frequency 50HZ) is reduced by a transformer (line voltage 200V, frequency 50HZ), enters the rectifier cabinet, undergoes rectification, voltage regulation, and filtering, and becomes continuously adjustable DC power from 0 to 240V; Entering the inverter bridge again (using high-power transistor MOSFET), it becomes high-frequency current, which can be supplied to the load slot for induction heating.

The inverter slot power unit adopts a modular structure, and each pair of power units can output a power of over 50KW. The number of power units used varies depending on the power of the equipment, and the basic structure of the equipment is the same regardless of its size. The slot is a series parallel hybrid resonant form, without high voltage and output transformer. The number of power units used in this device is ten pairs.

The main advantages of this 500KW High frequency pipe welding machine are:

1. No high voltage, safe, reliable, and efficient.

2. The main components are all imported products from companies such as IR, IXYS, and Siemens.

3. Adopting pulse width modulation or microcomputer controlled voltage regulation circuit, stable regulation, high accuracy, and low harmonic interference.

4. The power range is infinitely adjustable from 0 to 100%, and it has fault protection systems such as over-voltage and over-current.

5. Digital display of work status, simple operation, and convenient maintenance.

6. Good welding quality, uniform weld width and heat, with few internal and external burrs.

Application		Operation parameter		Power supply requirement
Steel pipe OD	Φ114-Φ219	Rated power	500kW	Power supply form	3AC 380 ±5%
Steel strip thickness	4.0-10.0	Rated DC voltage	240V
Welding mode	Induction or contact type	Rated DC current	2500A	Power supply capacity	Larger than 600KVA
		Rated frequency	200KHZ	Power factor	≥0.85
Welding speed	10-20(m)	Efficiency	≥85%	Power supply cable	plastic-copper≥500mm² Ground cable≥250mm²
		Output HF power	≥500kW