Bi-Fold
    System
Kömmerling Aluminium

Bi-Fold System

KBF70.1 CL ES

Engineered for grandeur and effortless operation, the KBF70.1 CL ES is a heavy-duty bi-fold (sliding and folding) door system designed for large-scale residential and demanding commercial applications. 
With a robust 70 mm frame depth, up to 11 panels, and a low threshold option for barrier-free access, it transforms any space by maximising glazed area, natural light, and seamless indoor-outdoor connectivity.

Expansive View
70 mm Frame, Max Glass Area

Heavy Duty
Up to 11 Panels

Barrier Free
Low Threshold Access

The KBF70.1 CL ES supports a wide range of bi-fold configurations with up to 11 panels, each up to 0.9 m (w) × 3.0 m (h) – delivering dramatic, full-width openings for residential living spaces, hospitality venues, and commercial facades.

The 70 mm frame depth maximises glazed surface area while maintaining structural integrity, and the system accommodates glass thickness from 8 to 35 mm – enabling single, double, and triple glazing configurations for varied performance requirements.

A low threshold option ensures compliance with barrier-free access requirements, while the anti-finger trap system and three-point hook locking mechanism make the KBF70.1 CL ES as safe and secure as it is architecturally impressive.

CRAFTED FOR PERFORMANCE 

System Features

The KBF70.1 CL ES is a heavy-duty bi-fold system designed for consistent, smooth operation across large panel configurations. Four stainless steel wheels on the bottom track and four nylon rollers on the top ensure effortless movement even at maximum panel sizes, making it the system of choice for high-traffic commercial environments.

With a wind load capacity of up to 1.2 kPa and glass thickness compatibility from 8 to 35 mm, the system delivers reliable environmental performance. The three-point hook locking mechanism provides a high level of security across all panel counts, while the anti-finger trap system ensures user safety in both residential and public-access commercial settings.

The low threshold bottom profile option enables seamless floor-level transitions, meeting accessibility and barrier-free design standards without compromising on the system’s clean, contemporary aesthetic.

Slim 70 mm frame depth

Low Threshold Access

AWARDS & CERTIFICATIONS
KWD46.1 CL ES_Winwall Certificate (140x100 px)

BS EN Tested
Winwall Certified
AWARDS & CERTIFICATIONS
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Sustainability
Certifications 
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Sustainability
Certifications 
Portfolio_IN_920x600pxNakheel Tower

Sustainability
Certifications 
  • Up to 11 panels supported, creating dramatic, full-width openings for residential and commercial spaces
  • Maximum panel size of 0.9 m (w) × 3.0 m (h) accommodates floor-to-ceiling glazing in high-specification projects
  • Slim 70 mm frame depth maximises glazed surface area and allows more natural light and unobstructed views
  • Glass thickness range of 8–35 mm supports single, double, and triple glazing for diverse thermal and acoustic performance requirements
  • Low threshold option provides barrier-free access, supporting accessibility compliance in commercial and public-facing applications
  • Anti-finger trap system ensures user safety — essential for family homes, hospitality venues, and high-footfall commercial spaces
  • Three-point hook locking mechanism delivers robust security across all panel configurations
  • Four SS bottom wheels and four nylon top rollers guarantee smooth, consistent operation even on larger, heavier panels
  • Heavy-duty construction is purpose-built for demanding commercial environments with frequent daily use
  • Wind load capacity up to 1.2 kPa ensures dependable performance across a range of climatic conditions
  • Slim 70 mm frame depth reduces aluminium material weight while maintaining structural rigidity -simplifying handling during fabrication
  • Consistent profile geometry across all panel counts streamlines cutting, machining, and assembly processes
  • Wide glass thickness range (8–35 mm) eliminates the need for bespoke glazing adaptors in standard production
  • Integrated anti-finger trap profile reduces additional component requirements during assembly
  • Three-point hook locking integrates within the standard profile, minimising secondary hardware operations
  • Low threshold profile variant uses the same frame system, keeping the bill of materials lean across project types

KBF70.1 CL ES

Sash Dimension70.5 mm (D) x 59.5 mm (H)
Thermally brokenNo
Glass Thickness8-42 mm
Full hidden DrainageNo ( Drainage Cap is Visible)
Thermal Insulation Uf-
Sound IsolationDesigned for deduction upto 40 db
Rw (C;Ctr)-
STC-
OITC-
Wind Resistance
Tested according EN 122111200 Pa
Classified according EN 12210Class A2
Water Tightness
Tested according EN 1027600 Pa
Classified according EN 12208Class 9A
Air Permeability
Tested according EN 1026600 Pa
Classified according EN 12207Class 4
MaterialAluminium alloy 6063 T6
Size Limitations900 x 3000 mm

The KBF70.1 CL ES is a heavy-duty aluminium bi-fold (sliding and folding) door system with a slim 70 mm frame depth, designed for large-scale residential and commercial applications. The system supports up to 11 panels with a maximum individual panel size of 0.90 m (w) × 3.00 m (h). Glass thickness from 8 mm to 35 mm is accommodated. Wind load capacity is rated up to 1.2 kPa. Four stainless steel wheels on the bottom track and four nylon rollers on the top track ensure smooth, consistent operation for larger and heavier panel configurations. A three-point hook locking mechanism provides a high level of security, and an anti-finger trap system is incorporated as standard for user safety. A low threshold bottom profile option is available to enable barrier-free access in compliance with accessibility requirements. 

The KBF70.1 CL ES is purpose-built for high-traffic commercial environments and premium residential applications requiring maximum glazed area, effortless operation, and uncompromising performance.

KBF70.1 CL ES

Profile basic depths70.5 mm
Profile Face Widths59.5 mm
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Product overview

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