Description
The ATA / B&D Steel Belt C-Rail Extension Kit – Part No. 86891 is a genuine rail extension designed specifically for the ATA / B&D Steel C-Rail & Belt system.
The extension adds 790mm of additional rail length, allowing the standard steel belt C-rail to be extended for use on sectional garage doors up to approximately 3230mm high.
It is the ideal solution when installing a compatible ATA or B&D sectional garage door opener on a taller-than-standard garage door without requiring a completely different rail assembly.
📏 Extends the Rail by 790mm
The 86891 extension kit adds an additional 790mm to the compatible ATA / B&D steel belt C-rail.
This provides the additional trolley travel required for taller sectional garage doors.
It is particularly useful for:
- Taller residential garage doors
- Custom sectional garage doors
- High-opening garages
- Replacement opener installations
- New garage door installations
- Compatible ATA operators
- Compatible B&D operators
🚪 Suitable for Doors Up to 3230mm High
When fitted to the compatible ATA / B&D Steel C-Rail & Belt, the 86891 extension allows the rail system to accommodate sectional garage doors up to approximately 3230mm high.
This makes the extension suitable where the standard rail does not provide sufficient travel to fully open a taller garage door.
⚙️ Designed for the Steel Belt C-Rail
The 86891 has been specifically designed for the ATA / B&D Steel C-Rail & Belt system.
It extends both the physical rail and belt drive arrangement so that the opener trolley can travel the additional distance required by a taller garage door.
The kit should not be confused with extension components designed for:
- Steel chain C-rails
- Aluminium belt C-rails
- Aluminium chain C-rails
- Tilt door rails
The drive system and rail type must be correctly identified before ordering.
🔇 Retains Belt Drive Operation
Because the 86891 is specifically designed for the steel belt C-rail, the completed extended rail retains the smooth belt-driven operation of the original system.
This provides:
- Smooth garage door movement
- Quiet belt drive operation
- Reliable power transfer
- Extended trolley travel
- Compatibility with taller sectional doors
- Purpose-designed integration with the existing rail
🏗️ Ideal for Taller Sectional Garage Doors
Modern homes increasingly incorporate taller garage door openings, particularly where additional clearance is required for larger vehicles.
The 86891 extension kit allows a compatible ATA or B&D opener using the steel belt C-rail to be adapted for these taller applications.
It is particularly suitable for:
- Custom garage doors
- Architectural homes
- Taller residential openings
- Garages accommodating larger vehicles
- High-clearance garages
- Replacement automation on existing tall doors
🔧 Suitable for New Installations
The 86891 can be incorporated when installing a new compatible ATA or B&D garage door opener.
Where the garage door exceeds the capacity of the standard rail, the extension kit can be installed with the steel belt C-rail to provide the additional operating length required.
This allows the correct rail configuration to be assembled according to the actual garage door height.
🔄 Suitable for Existing Installations
The extension kit can also be useful when modifying or replacing an existing compatible garage door opener installation.
Applications may include:
- Replacing an existing opener on a tall door
- Installing a new steel belt C-rail
- Changing the garage door height
- Replacing an existing damaged extension
- Upgrading a compatible automation system
The existing rail and operator should be checked before ordering to ensure the 86891 is the correct extension.
🔗 Designed to Work With Part No. 100605
The 86891 extension kit is designed for the compatible ATA / B&D Steel C-Rail & Belt system, including the interchangeable steel belt rail sold as Part No. 100605. Current parts listings identify 100605 as the ATA interchangeable steel belt C-rail and 86891 as its steel belt extension kit.
This provides a convenient combination for taller sectional garage door installations:
- 100605 – Steel C-Rail & Belt
- 86891 – 790mm Steel Belt Rail Extension
🧰 Genuine ATA / B&D Accessory
The 86891 is a genuine Automatic Technology extension component designed specifically for the ATA / B&D steel belt rail system.
Using the correct extension ensures the additional rail and drive components are designed to integrate with the original C-rail system.
The extension is identified as:
- Product: Steel Belt C-Rail Extension Kit
- ATA / B&D Part No.: 86891
- Extension Length: 790mm
- Maximum Door Height: Approximately 3230mm
- Rail Type: Steel C-Rail
- Drive Type: Belt
📦 What’s Included
The kit includes the components required to extend the compatible ATA / B&D steel belt C-rail.
The extension provides:
- 790mm Steel C-Rail Extension
- Belt Extension Components
- Associated Extension Hardware
The main steel C-rail and garage door opener powerhead are not included unless specifically stated otherwise.
Key Features
- Genuine ATA / B&D extension kit
- Part No. 86891
- Designed for the Steel C-Rail & Belt
- Compatible with Steel Belt C-Rail Part No. 100605
- 790mm extension length
- Extends the rail for taller sectional garage doors
- Suitable for doors up to approximately 3230mm high
- Retains belt drive operation
- Suitable for compatible ATA garage door operators
- Suitable for compatible B&D garage door operators
- Ideal for taller residential garage doors
- Suitable for new installations
- Suitable for compatible existing installations
- Genuine Automatic Technology component
Specifications
- Manufacturer: Automatic Technology Australia
- Brands: ATA / B&D
- Product: Steel Belt C-Rail Extension Kit
- Part Number: 86891
- Extension Length: 790mm
- Maximum Door Height: Approximately 3230mm
- Rail Type: Steel C-Rail
- Drive Type: Belt
- Compatible Rail: ATA / B&D Steel C-Rail & Belt
- Compatible Rail Part No.: 100605
- Application: Sectional Garage Doors
- Genuine Accessory: Yes
Compatibility
The ATA / B&D Extension Kit – Part No. 86891 is designed specifically for the ATA / B&D Steel C-Rail & Belt system.
It is compatible with:
- ATA / B&D Steel C-Rail & Belt – Part No. 100605
Operator compatibility will therefore depend on whether the garage door opener is compatible with the 100605 steel belt C-rail.
⚠️ Please Note
The 86891 is specifically designed for the Steel Belt C-Rail and should not be assumed compatible with ATA / B&D aluminium rails or chain-driven rails.
The extension adds 790mm to the compatible rail and allows the completed rail system to suit sectional garage doors up to approximately 3230mm high.
Please confirm the existing rail type, garage door opener model and garage door height before ordering.
The garage door must also be correctly balanced and mechanically sound before an automatic opener is installed.
