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Features
  • Material
    Porcelain slabs
  • Slab Thickness
    12 - 20 mm
  • Fixation Type
    Invisible undercut anchoring
  • Slab Preparation
    Back-face drilling according to the anchor supplier’s instructions.
  • Fixing System
    Undercut anchors fixed to continuous horizontal profiles
  • Substructure Profiles
    Double-layered system: vertical profiles (L or T) & horizontal profiles (shaped to receive fixings)
  • Slab Orientation
    Vertical or horizontal
  • Slab Compatibility
    Large-format slabs up to 1620 x 3240 mm; custom cuts prepared on-site or factory-cut based
  • Recommended Joint
    5 mm

Undercut Anchoring System

Designed for 12–20 mm porcelain slabs, this mechanical system uses undercut anchors drilled into the slab’s back face and fixed to a double-layer aluminum substructure. It enables concealed, secure installation with a clean, modern appearance.The system supports vertical and horizontal installation of large-format slabs up to 1620 × 3240 mm. Anchor placement is based on slab thickness, weight, and project requirements, with drilling performed on-site per supplier guidelines. Suitable for façades requiring high strength and flexibility, it allows precise alignment and adjustments during installation. A dry, adhesive-free method, it ensures long-term durability and structural safety.

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Performance Characteristics
  • Berghe icon Compatible with 12 mm and 20 mm porcelain slabs
  • Berghe icon Supports large-format panels up to 1620 x 3240 mm
  • Berghe icon Undercut anchors ensure strong, concealed fixing
  • Berghe icon Simple, tool-free panel replacement without disturbing adjacent units
  • Berghe icon Wind-load tested and structurally optimized for safety and code compliance
  • Berghe icon Dry mechanical system with no adhesives required
  • Berghe icon Accommodates both vertical and horizontal installation
  • Berghe icon Allows for on-site slab cutting or prefabricated custom sizing
  • Berghe icon Alignment adjustable on-site via fixing mechanisms
  • Berghe icon Suitable for both standard and complex façade layouts
Undercut anchor
10 Undercut Anchoring System image 4
Component Breakdown
  • 1- Structural Support Wall: Concrete, CMU, or framed substrate (not supplied)
  • 2- Waterproofing Layer: Protects wall assembly from moisture (not supplied)
  • 3- Thermal Insulation: Installed behind the substructure for energy efficiency (not supplied)
  • 4- Mechanical Anchors: Fix brackets and substructure to the support wall
  • 5- Thermal Break Pads: Prevent thermal bridging and galvanic reactions
  • 6- Stainless Steel Self-Drilling Screws: Used to fix brackets, hanger, and aluminum profiles
  • 7- Aluminum Brackets (L-shaped): Define cavity depth and transfer structural loads
  • 8- Vertical Aluminum Profiles: L- and T-shaped profiles forming the primary structure
  • 9- Horizontal Aluminum Profiles: Support and integrate with the anchoring system
  • 10- Undercut Anchors: Inserted into pre-drilled holes on the slab back
  • 11- Porcelain Slabs: 12 mm or 20 mm thick slabs, up to 1620 x 3240 mm, with pre-drilled undercut holes for anchor insertion
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