

GRM specializes in the R&D and manufacturing of complete production lines for high-performance photovoltaic ribbons, especially MBB (Multi-Busbar) ribbons. The Solar PV Round Wire Machine is developed to meet the PV industry's increasing requirements for precision, efficiency, and production stability.
From copper wire preparation to coating and finished product winding, the equipment supports full-process control to help customers produce high-quality photovoltaic ribbons with excellent conductivity, soldering reliability, coating consistency, and long-term weather resistance.
| Item | Specification |
| Machine model | GRM-RWRM-ATD |
| Inlet size | Φ0.8 mm - Φ1.2 mm |
| Speed | Max. 400 m/min |
| Tin thickness | 0.01-0.02 mm/side running size |
| Tolerance |
Bare copper: ±0.003 mm Tin thickness: ±0.005 mm |
| Finished product yield strength | ≤ 65 MPa |
| Tensile strength | < 240 MPa |
Compared with GRM's previous round wire machine model, GRM-RWRM-AT, the new Solar PV Round Wire Machine includes the following upgrades:
Upgraded cooling structure for high-temperature conditions. Chiller available as optional for extreme environments.
Optimized footprint for high-volume production. Supports back-to-back arrangement per plant requirements.
Added protective covers on pay-off and take-up sections for improved operator safety.
GRM offers both fully automatic and semi-automatic models to match different investment budgets, production capacities, and automation requirements.

| Model | Inlet Size | Finished Size | Speed | Yield Strength |
| GRM-RWRM | Φ1-Φ0.6 mm | After coating: Φ0.15-0.4 mm | 400 m/min | 60-75 MPa |
| GRM-RWRM-AT | Φ1-Φ0.6 mm | After coating: Φ0.15-0.4 mm | 600 m/min | 60-75 MPa |
GRM photovoltaic ribbon equipment has been adopted by leading PV manufacturers and industry benchmark customers, including JA Solar, Telison, Aditya Birla Group, and other global clients. The equipment supports large-scale production of high-efficiency PV modules by helping customers improve ribbon quality, production stability, and process consistency.
GRM is committed to supporting PV manufacturers with advanced equipment technology and practical process understanding. With reliable production lines and flexible equipment configurations, GRM helps customers improve ribbon quality, reduce overall production costs, and strengthen their competitiveness in the solar PV market.