The Kaierda – BX1-315-1 is part of the BX1 series of moving-core transformer welders, known for their durability and reliability in industrial environments. Its moving-core design allows stepless regulation of welding current via a large front wheel, providing precise control for different welding tasks.
Equipped with dual-voltage capability (220V/380V), the machine adapts to various industrial power grids. As a three-phase welder, it ensures stable current delivery, reduced fluctuations, and improved efficiency for heavy-duty applications.
With an output current range of 70–315A, the BX1-315-1 is suitable for electrode diameters from 2.5 mm to 5.0 mm, making it versatile for welding mild steel and low-alloy steel. Its duty cycle is rated at 60% at 315A, allowing continuous welding for 6 minutes out of every 10 at full power.
The forced air-cooling system with built-in thermal protection prevents overheating during extended use. Despite its industrial build, the welder is equipped with wheels and a handle for easier portability around workshops and job sites.
TECHNICAL DETAILS:
| Specification | Details |
| Brand | Kaierda |
| Model | BX1-315-1 |
| 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 | 315 A |
| Current Range | 70–315 A |
| Rated Working Voltage | 32 V |
| Rated Input Capacity | 22.5 KVA |
| Rated Duty Cycle | 60% at 315A (35% at max load) |
| Rated Primary Current | 67 A |
| Cooling Type | Forced air cooling (fan-assisted) |
| Insulation Type | Class F |
| Protection Type | IP21S |
| Electrode Compatibility | 2.5 mm – 5.0 mm |
| Phases | Three-phase |
| Applications | Construction, pipelines, heavy machinery repair, shipbuilding, steel structures |
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