Product Description
The welding machine in the DC MMA welders series, inverts the 50/60Hz power
supply to a high-frequency, high-voltage power supply of up to 21KHz. The
inversion process is facilitated by a powerful IGBT device followed by step-down
rectification and pulse-width modulation (PWM) technology producing a high-power
DC output suitable for welding. The advanced inverter technology allows for the
construction of a smaller volume and light-weight, stable and reliable transformer with
a 35% improved efficiency.
Added to the advantages of the inverted power supply, the machine has good
dynamic characteristics and performance, offers a stable arc and good quality
welding as well as ease of control.
Welding machines in the inverter DC MMA series are widely used in, amongst
others, the petrochemical industry, electric power construction, shipbuilding,
machinery manufacturing, building construction, indoor and outdoor decoration,
hardware and kitchen equipment production.
The inverter welding machines in this series are manufactured in accordance with
IEC60974-1 <Arc Welding Equipment - Part 1: Welding Power Sources>.
1. Product Functions and Features:
1.1. The advanced control technology ensures that a variety of welding applications
are met with excellent performance.
1.2. Easy arc starting, a stable arc, less spatter, a high metal-deposition rate, less
deformation and high seam quality.
1.3. Adjustable ignition current and hot-start ignition ensure that MMA welding is
simpler with a higher degree of reliability.
1.4. The VRD anti-shock protection facility adds an important personal safety feature
and complies with international norms and standards.
1.5. The overheat protection system ensures a high degree of machine reliability.
1.6. The machine conforms to IP21S protection level standards in harsh
environmental conditions.