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Professional solar mounting manufacturer with 12+ years of expertise. Delivering reliable, economical, and efficient solutions to 5200+ projects across 80+ countries.

Flange-Top Solar Clamp – RF07 Adjustable Seam Mount

Ziyuan’s RF07 Flange-Top Solar Clamp combines a heavy-duty standing seam base with a specialized wide slotted flange plate. It offers superior adjustability for perfect grid alignment on irregular roofs and supports both rail-based and direct-attach (rail-less) configurations. Engineered from high-strength AL6005-T5 aluminum, it provides a 25-year service life without piercing the roof sheet.

Product Description

RF07 Flange-Top Solar Clamp | Adjustable & Direct-Attach Ready Mount

The RF07 Flange-Top Clamp is a high-versatility solution that combines a heavy-duty standing seam clamp base with a specialized wide Flange Plate. This slotted or multi-hole flange provides extended adjustability and a significantly broader mounting surface compared to standard single-bolt clamps.

It is particularly engineered for complex grid alignment on irregular roofs, supporting direct-attach (rail-less) panel configurations, or enabling low-profile side-mounting of rails. The flange allows installers to compensate for drifting roof seams, ensuring the solar array remains perfectly straight.

Constructed from high-tensile Anodized Aluminum 6005-T5, the RF07 utilizes a non-penetrating mechanical lock that preserves the roof’s waterproof integrity and protective coatings, making it the favorite choice for custom residential and commercial solar projects.

RF07 Flange-Top Solar Clamp View

Product Structure

RF07 Flange-Top Clamp installation diagram

Selling Points & Advantages

  • Installation Flexibility: The slotted flange allows for precise East-West or North-South adjustment to compensate for irregular seam spacing.
  • Direct-Attach Ready: Provides an expanded surface area to support solar panel frames directly without the need for mounting rails.
  • Low Profile Integration: Enables side-mounting of rails to reduce wind uplift forces and improve the overall system aesthetics.
  • Non-Penetrating Security: Stainless steel setscrews grip the seam without piercing, ensuring zero leaks and maintaining roof warranties.
  • Structural Strength: Engineered to transfer heavy loads directly to the purlins while preventing seam deformation.

Technical Parameters

Feature Specification
Brand Name Ziyuan
Model Code RF07
Top Feature Wide Slotted Flange Plate
Material Anodized Aluminum 6005-T5
Hardware SUS 304 Stainless Steel
Seam Compatibility Round Bulb standing seams
Wind Load Up to 60 m/s
Adjustment Range 30mm – 50mm via Slotted Flange
Warranty 12-year warranty
Service Life 25-year service life

Related Models

FAQ

Q01: Why use a flange clamp like the RF07?

A01: The flange allows for positional adjustment. If roof seams aren’t perfectly straight, the slot lets you align the rail perfectly.

Q02: Can I use this for rail-less mounting?

A02: Yes, the wide flange provides enough surface area to support solar panel frames directly, making it ideal for rail-less systems.

Q03: Is the flange plate adjustable?

A03: Yes, the slotted hole design allows for significant East-West or North-South adjustment during site installation.

Q04: What type of seams does it fit?

A04: It is specifically designed for round bulb standing seams. The clamp jaw is contoured to fit the round seam profile securely.

Q05: Does it require drilling into the roof?

A05: No, it uses non-penetrating setscrews to grip the seam fold, ensuring your roof warranty remains valid.

Q06: Can I side-mount rails with this clamp?

A06: Yes, the flange allows L-feet to be mounted on the side, enabling a lower profile and more aerodynamic solar array.

Q07: What is the material grade?

A07: High-tensile Anodized Aluminum 6005-T5 with SUS 304 stainless steel hardware.

Q08: Is the hardware included in the package?

A08: It comes with necessary setscrews for seam attachment. Rail mounting bolts are usually part of the racking kit.

Q09: How much adjustment does the slot offer?

A09: The slot typically allows for up to 50mm of adjustment range, depending on the specific project configuration.

Q10: Is it suitable for high hurricane wind zones?

A10: Yes, the large surface area and dual-screw base provide excellent uplift resistance for wind zones up to 60m/s.

Q11: Can it support microinverters?

A11: Yes, the flange provides a convenient and secure mounting point for microinverters or power optimizers.

Q12: Does it work on snap-lock seams?

A12: It depends on the seam height; while the base might fit, we recommend consulting our technical team for specific snap-lock profiles.

Q13: What is the recommended torque specification?

A13: Standard torque is 15-17 Nm for the SUS 304 setscrews to ensure maximum grip without deformation.

Q14: Does it come pre-assembled?

A14: Yes, the clamp body and flange plate are pre-assembled to reduce labor time on the roof.

Q15: What is the warranty period?

A15: Ziyuan Solar provides a 12-year structural warranty and a 25-year designed service life.

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