Daihen, TOOLS & EQUIPMENT, Welding Tools
Daihen MRN-2500 II Stud Gun
Product Made in Japan
Manufacturer: DAIHEN
Model: MRN-2500 II
Stud Welding Gun GS-203
Designed based on ergonomics to achieve excellent operational weight balance.
Uses a handle that reduces temperature increase.
Ensures compatibility with previous models (GS-201 and GS-202) for consumables and connector interchangeability.
Adopting a new stud welding gun with improved operability, maintainability, and durability!!
Achieves precise waveform control through digital regulation.
Convenient Features
Equipped with various protection circuits
- Temperature abnormalities, phase abnormalities, overcurrent abnormalities, excessive conduction time, etc.
- Includes protection breakers for gun control cables.
Easy fine-time adjustment
- Enables easy setting of fine welding times below 0.25 seconds by doubling the welding time settings.
Enhanced Safety
Avoids the risk of electric shock caused by no-load voltage
- Cuts off output within 0.3 seconds when idling.
Safety design with protection against dripping water.
Power Equipment Capacity and Connection Cable
| Item | MRN-2500 II |
|---|---|
| Voltage (V) | 200 |
| Phase | Three-phase |
| Equipment Capacity (kVA) | 160 (rated 135) or higher |
| Fuse (A) | 300 |
| Input Cable (mm²) | 60 (M10) |
| Work Cable (mm²) | 100 or higher |
| Ground Cable (D-type connection) (mm²) | 60 (M10) |
Note: Values in parentheses indicate the standard terminal size on the welding machine side.
Specifications
| Specifications Table | MRN-2500 II (S-2) |
|---|---|
| Welding Power Source | MRN-2500 (S-2) |
| Rated Output Current Range (A) | 200–2000 (max. 2500) |
| Phase | Three-phase |
| Frequency (Hz) | 50/60 (dual use) |
| Rated Input Voltage (V) | 200 |
| Rated Input Capacity (kVA) | 238 (max. 291) |
| Rated Input Current (A) | 686 (max. 840) |
| Rated Output Voltage (V) | 266 |
| Rated Duty Cycle (%) | 15 (max. duty 10%) |
| External Protection Rating | Enclosed, fixed type |
| Welding Time Setting (s) | 0.01–0.25 |
| Applicable Welding Studs (mm) | Ø 9.5–Ø 25 |
| External Dimensions (mm) | 680 × 1055 × 970 (with eyebolts) |
| Weight (kg) | 470 |
| Stud Welding Gun Specifications | Details |
| Model | GS-203 |
| Rated (Max) Welding Current (A) | 2000 (2500) |
| Rated Duty Cycle (%) | 5 (max. duty 3%) |
| Damping Mechanism | Yes |
| Applicable Stud Diameter (mm) | Ø 9.5–Ø 25 |
| Dimensions (mm) | 230 × 375 |
| Weight (kg) | 2.4 |
Standard Components
| Category | MRN-2500 II (S-2) |
|---|---|
| Welding Power Source | MRN-2500 |
| Work Cable | 100 mm² × 5 m × 1 piece |
| Gun Connection Cable | 100 mm² × 0.5 m × 1 piece |
| Stud Welding Gun | GS-203 |
| Leg | For stud lengths of 270 mm or less, 1 set |
Note: Stud chucks and foots are sold separately.
Optional Accessories
| Product Name | Model | Specification | Length |
|---|---|---|---|
| Extension Power Cable | BKPJX-1005 | 100 mm² | 5 m |
| BKPJX-1010 | 10 m | ||
| BKPJX-1015 | 15 m | ||
| BKPJX-1020 | 20 m | ||
| Extension Control Cable | BKCPJ-0405 | 4-core | 5 m |
| BKCPJ-0410 | 10 m | ||
| BKCPJ-0415 | 15 m | ||
| BKCPJ-0420 | 20 m | ||
| Remote Control | K3998V00 | – | 4 m |
| Extension Remote Control Cable | BKCPJ-0605 | 6-core | 10 m |
| BKCPJ-0615 | 15 m | ||
| BKCPJ-0620 | 20 m |
Note: Part numbers are included.
