Product Description
RF03 Double Screw Standing Seam Clamp | Heavy-Duty High-Load Solar Attachment
The RF03 Double Screw Standing Seam Clamp is Ziyuan Solar’s premier solution for heavy-duty applications. Unlike standard single-screw clamps, the RF03 features two round-point setscrews. This dual-point fixation doubles the friction interface with the roof seam, providing superior holding power against wind uplift and snow loads.
Designed for versatility, the RF03 is compatible with a wide range of standing seam profiles. The clamp body is extruded from high-tensile Aluminum 6005-T5, ensuring structural integrity over decades of service even in high-vibration environments.
The non-penetrating design utilizes blunt-tip screws that securely grip the seam without piercing the metal. This preserves the roof’s waterproof properties and manufacturer warranty, making it the preferred choice for large-scale commercial solar projects.
Product Structure
Key Features
- Double Security: Equipped with two setscrews to prevent rotation and increase pull-out resistance.
- Universal Application: Fits most vertical standing seam profiles, making it a versatile choice for installers.
- Non-Penetrating: Round-point screws dimple the metal rather than cutting it, preventing rust and leaks.
- Pre-Assembled: Ships with all hardware pre-assembled for immediate installation on the roof.
- Durability: Anodized aluminum body and SUS 304 stainless steel hardware resist corrosion in harsh environments.
Technical Parameters
| Feature | Specification |
|---|---|
| Brand Name | Ziyuan |
| Model Code | RF03 |
| Material | Anodized Aluminum 6005-T5 |
| Hardware | SUS 304 Stainless Steel |
| Fastening Method | 2x Round-Point Setscrews |
| Seam Compatibility | Vertical Standing Seam |
| Wind Load | Up to 60 m/s |
| Snow Load | 1.4 KN/m² |
| Torque Requirement | 15–18 Nm |
| Anodized Finish | ≥ 10 μm (Clear Anodized) |
| Warranty | 12-year warranty |
| Service Life | 25-year service life |
Related Models
FAQ
Q01: How many screws does the RF03 have?
A01: The RF03 is equipped with two stainless steel setscrews, offering enhanced holding power compared to single-screw mini clamps.
Q02: Does the double screw design damage the roof?
A02: No. We use blunt round-point setscrews that compress the seam without piercing it, preserving the roof warranty.
Q03: Is this clamp suitable for high wind zones?
A03: Yes, the dual-screw design provides high resistance to wind uplift, making it suitable for wind speeds up to 60 m/s.
Q04: Can I use the RF03 for rail-less systems?
A04: Yes, it is an excellent base for rail-less inter-clamps due to its elongated body and high stability.
Q05: What is the recommended torque?
A05: Typically 15-18 Nm, but always refer to the specific installation manual for your roof gauge.
Q06: Is the hardware included?
A06: Yes, it comes pre-assembled with two side setscrews. Top bolts are usually supplied with the L-foot or rail attachment.
Q07: What material is used?
A07: High-strength Anodized Aluminum 6005-T5 and SUS 304 stainless steel hardware.
Q08: Can I use this on copper roofs?
A08: No, aluminum clamps are not compatible with copper. Please inquire about our specialized brass solutions.
Q09: Does it work on horizontal seams?
A09: It is optimized for vertical seams. For horizontal single-fold seams, please check our RF06 model.
Q10: What is the warranty?
A10: We offer a 12-year product warranty and a 25-year designed service life.
