Designed for fabricators and installers who require flexibility without compromising on performance, the BSC94 offers multiple rail options, impressive weight capacity and a wide range of sightline choices — including a slimline 45 mm interlock variant.
Engineered to AluK’s proven standards and fabricated by Arkay, the BSC94 provides smooth operation, strong weather ratings and a versatile set of configuration options to suit almost any architectural requirement.
Standard 85 mm interlock or slimline 45 mm interlock option
Clean, modern styling suitable for both new-builds and refurbishments
Available in mono, dual or tri-rail configurations for extended openings
Designed to handle up to 400 kg vent weights
High-performance roller system for reliable long-term operation
Single or dual-colour options available
Anodised finishes optional
Compatible with a wide range of hardware and accessories
Mono-rail (105 mm)
Dual-rail (94 mm)
Tri-rail (155 mm)
All designed to support multiple sliding panels and wider openings.
Accepts 20–31 mm double glazing
Internally glazed for enhanced security and easier installation
Multi-point locking
PAS 24 certified option available on the standard BSC94 system
(Note: BSC94 Slim does not carry PAS 24 certification.)
| Specification | BSC94 | BSC94 Slim |
|---|---|---|
| U-value (double glazing) | 1.7–1.9 W/m²K | 1.9 W/m²K |
| U-value (triple glazing) | 1.5–1.7 W/m²K | 1.6–1.7 W/m²K |
| Air tightness | Class 4 (600 Pa) | Class 4 (600 Pa) |
| Water tightness | Class 7A (300 Pa) | Class 7A (300 Pa) |
| Wind load resistance | C4 (1600 Pa) | C4 (1600 Pa) |
| Max vent weight | 400 kg | 400 kg |
| Max frame height | 3000 mm | 3000 mm |
| Security rating | PAS 24 (standard system only) | Not PAS 24 |
The BSC94 offers a standard 85 mm interlock as well as a slimmer 45 mm option for projects that require a more minimal, contemporary appearance.
The system can accommodate vent weights up to 400 kg and frame heights up to 3000 mm, making it suitable for large-format sliding panels.
Yes — it achieves Class 4 air permeability, Class 7A water tightness and C4 wind load resistance, ensuring reliable performance in a wide range of environments.
The standard BSC94 configuration can be specified to meet PAS 24 security requirements. The slimline version does not carry PAS 24 certification.
The BSC94 accepts 20–31 mm glazing and is internally glazed, offering both security advantages and easier installation for trade partners.
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