The Kaierda – BX1-400-1 belongs to the BX1 series of moving-iron transformer welders, often referred to as “buzz boxes” due to their distinctive operating sound. It is engineered for manual welding of low carbon steel and low alloy steel, handling electrode diameters from 2.5 mm to 8 mm.
Equipped with a dual-voltage switch (220V/380V), the machine adapts to different industrial power grids. As a three-phase machine, it ensures stable current delivery, reduced fluctuations, and improved efficiency for heavy-duty welding tasks.
Its air cooling system, supported by a large internal fan, maintains stable operation and prevents overheating during extended use. With a current range of 90–400A, the BX1-400-1 provides flexibility for various welding requirements. Rated at 32 KVA input capacity and a 35% duty cycle, it balances power with reliability in industrial environments.
A properly maintained welding machine ensures stable current transfer, reduced spatter, and consistent weld quality, while regular inspection prevents overheating and prolongs service life.
TECHNICAL DETAILS:
| Specification | Details |
| Brand | Kaierda |
| Model | BX1-400-1 |
| Type | AC Arc Welding Machine (Transformer-based, Three-Phase) |
| Rated Input Voltage | 220/380V |
| Frequency | 50 Hz |
| Secondary No-Load Voltage | 76 V |
| Rated Output Current | 400 A |
| Current Range | 90–400 A |
| Rated Working Voltage | 36 V |
| Rated Input Capacity | 32 KVA |
| Rated Duty Cycle | 35% |
| Rated Primary Current | 84 A |
| Cooling Type | Air cooling (fan-assisted) |
| Insulation Type | Class F |
| Protection Type | IP21S |
| Phases | Three-phase |
| Applications | Construction, shipbuilding, steel structures, heavy fabrication |
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