Description
The ATA / B&D Aluminium Chain C-Rail Extension Kit – Part No. 62720 is a genuine rail extension designed specifically for compatible ATA and B&D Aluminium C-Rail & Chain systems.
The extension kit adds 1050mm of additional rail length, providing the extra trolley travel required when installing a compatible sectional garage door opener on a taller garage door that exceeds the capacity of the standard aluminium chain rail.
It is an ideal solution for taller residential and custom sectional garage doors, allowing the existing aluminium chain-drive rail system to be extended without requiring an entirely different opener and rail configuration.
📏 Extends the Rail by 1050mm
The 62720 Extension Kit adds 1050mm of additional length to the compatible ATA / B&D aluminium chain C-rail.
The additional rail length provides increased trolley travel, allowing the garage door opener to fully open taller sectional garage doors that cannot be accommodated by the standard rail.
It is particularly useful for:
- Taller residential sectional garage doors
- Custom garage doors
- High-clearance garage openings
- Architectural garage doors
- New garage door installations
- Replacement opener installations
- Compatible ATA operators
- Compatible B&D operators
🚪 Designed for Taller Sectional Garage Doors
A standard garage door opener rail is designed around a particular maximum garage door height.
When the sectional garage door is taller, the opener trolley needs to travel further along the rail before the garage door reaches its fully open position.
The 62720 extension kit increases the effective length of the aluminium chain rail by 1050mm, providing the additional travel required for these taller installations.
⚙️ Specifically for Aluminium Chain C-Rails
The 62720 has been specifically designed for compatible ATA / B&D Aluminium C-Rail & Chain systems.
It extends both the physical aluminium rail and the chain-drive arrangement, allowing the complete rail assembly to operate over the increased distance.
It should not be confused with extension kits designed for:
- Aluminium Belt C-Rails
- Steel Belt C-Rails
- Steel Chain C-Rails
- Jamb-Type Tilt Door Rails
The rail material and drive type should always be confirmed before ordering.
⛓️ Retains Chain Drive Operation
Because the 62720 is specifically designed for an aluminium chain-driven rail, the completed extended rail retains the strong mechanical drive characteristics of the original chain system.
The extended system provides:
- Strong mechanical power transfer
- Positive trolley movement
- Reliable chain-drive operation
- Additional trolley travel
- Lightweight aluminium rail construction
- Purpose-designed integration with the existing rail
🏗️ Aluminium Rail Construction
The extension continues the aluminium construction of the compatible main C-rail.
Aluminium provides an excellent combination of strength, rigidity and relatively low weight, making it particularly well suited to sectional garage door opener rails.
Benefits include:
- Lightweight construction
- Excellent corrosion resistance
- Rigid extruded profile
- Clean finished appearance
- Easy handling during installation
- Long-term durability
🏠 Ideal for High Garage Door Openings
Taller garage doors are increasingly common in modern residential construction, particularly where additional clearance is required for larger vehicles or where oversized garage doors form part of the architectural design.
The 1050mm Aluminium Chain Extension Kit provides a convenient solution for compatible ATA and B&D operators installed on these taller doors.
Typical applications include:
- Architectural homes
- Custom sectional garage doors
- Taller residential garage doors
- High-clearance garages
- Garages for larger vehicles
- Custom residential developments
- Replacement automation on existing tall doors
🔧 Suitable for New Installations
The 62720 can be incorporated when installing a new compatible ATA or B&D sectional garage door opener.
Where the garage door exceeds the capacity of the standard aluminium chain rail, the extension kit can be installed as part of the rail assembly to provide an additional 1050mm of rail length.
This allows the rail configuration to be matched to the actual garage door height.
🔄 Suitable for Existing Installations
The extension kit can also be used with compatible existing installations where additional rail length is required.
This may include:
- Replacing an existing damaged extension
- Installing a replacement aluminium chain C-rail
- Replacing an opener on a taller garage door
- Modifying an existing compatible installation
- Upgrading an existing garage door automation system
The existing rail and garage door opener should always be checked to confirm compatibility before ordering.
🔗 Designed for the Aluminium Chain Rail System
The 62720 is intended to work as part of the compatible ATA / B&D aluminium chain-driven C-rail system.
The extension is designed to integrate with the rail, chain and trolley arrangement rather than simply acting as an additional piece of aluminium rail.
When selecting an extension kit, both the rail construction and drive system must match:
- Aluminium Rail + Chain Drive → Aluminium Chain Extension
- Aluminium Rail + Belt Drive → Aluminium Belt Extension
- Steel Rail + Chain Drive → Steel Chain Extension
- Steel Rail + Belt Drive → Steel Belt Extension
🔩 Compatible with Aluminium C-Rail & Chain – 100630
The 62720 extension kit is designed for use with the compatible ATA / B&D Aluminium C-Rail & Chain system.
The corresponding products are:
- Aluminium C-Rail & Chain – Part No. 100630
- Aluminium Chain Extension Kit – Part No. 62720
When used together, the 62720 provides an additional 1050mm of rail length beyond the standard aluminium chain rail configuration.
Operator compatibility should still be confirmed before installation.
🆚 Aluminium Chain vs Aluminium Belt Extension
ATA / B&D aluminium C-rails are available with both chain and belt-drive configurations.
The 62720 is specifically for compatible chain-driven aluminium C-rails.
The corresponding belt-driven aluminium rail requires a different extension kit:
- 62720 – Aluminium Chain Extension Kit
- 62711 – Aluminium Belt Extension Kit
The two extension kits should not be considered interchangeable because the internal drive components are different.
🆚 Aluminium vs Steel Rail Extensions
ATA and B&D also use steel C-rail systems on selected garage door operators.
Although they perform the same basic function, aluminium and steel rail extensions are designed around their respective rail profiles and drive systems.
The 62720 should therefore not be substituted for a steel chain or steel belt extension kit.
The correct extension must match the existing rail assembly.
📐 Additional Trolley Travel
The purpose of extending the rail is to provide the garage door opener trolley with additional travel.
On a taller sectional garage door, the trolley needs to move further away from the garage door opening before the door can reach its fully open position.
The additional 1050mm rail extension allows the trolley and chain-drive system to operate over a greater distance, providing the travel required for compatible taller garage door installations.
⚖️ Does Not Increase Opener Lifting Capacity
Installing the 62720 rail extension increases the available trolley travel but does not increase the lifting capacity of the garage door opener.
The selected powerhead must still be suitable for the:
- Garage door weight
- Garage door height
- Garage door area
- Operating load
- Application
- Expected usage level
This is particularly important with taller garage doors, as increasing the height of the door may also increase its overall weight and operating load.
⚖️ Correct Door Balance is Essential
The garage door must be correctly balanced before the opener and extended rail are commissioned.
Garage door springs should counterbalance the majority of the door’s weight so that the opener is only required to move the correctly balanced door.
Before installation, the garage door should:
- Move smoothly by hand
- Be correctly spring balanced
- Have correctly aligned tracks
- Have freely rotating rollers
- Not bind during operation
- Remain mechanically stable
- Be suitable for automatic operation
An incorrectly balanced garage door can cause premature wear or damage to the chain, trolley, rail, gearbox or opener.
🔧 Correct Chain Tension
Correct chain tension is particularly important when installing a rail extension.
After the extension components have been installed, the complete chain system must be correctly assembled and tensioned.
A chain that is too loose may result in:
- Excessive chain movement
- Increased operating noise
- Poor trolley operation
- Reduced operating accuracy
Excessive chain tension can place unnecessary load on the:
- Drive sprocket
- Bearings
- Trolley
- Rail components
- Garage door opener powerhead
The completed extended rail should therefore be correctly adjusted before the opener is commissioned.
🧹 Routine Inspection & Maintenance
The extended chain rail system should be periodically inspected as part of normal garage door servicing.
Routine inspection should include:
- Chain condition
- Chain tension
- Extension connection
- Rail alignment
- Trolley condition
- Drive sprocket
- Rail mounting points
- Door arm connection
- Powerhead connection
- Garage door balance
- General mechanical operation
Any excessive wear, damage or unusual movement should be investigated before continued operation.
🧰 Genuine ATA / B&D Accessory
The 62720 is a genuine Automatic Technology rail extension designed for compatible ATA and B&D aluminium chain C-rail systems.
The extension is identified as:
- Product: Aluminium Chain C-Rail Extension Kit
- ATA / B&D Part No.: 62720
- Extension Length: 1050mm
- Rail Type: Aluminium C-Rail
- Drive Type: Chain
- Application: Taller Sectional Garage Doors
Using the correct extension helps ensure the additional rail and chain components integrate correctly with the existing rail system.
📦 What’s Included
The kit includes the components required to extend the compatible ATA / B&D Aluminium Chain C-Rail.
The extension kit includes the required:
- 1050mm Aluminium C-Rail Extension
- Chain Extension Components
- Associated Extension Hardware
The main aluminium C-rail and garage door opener powerhead are not included unless specifically stated otherwise.
Key Features
- Genuine ATA / B&D extension kit
- Part No. 62720
- Specifically designed for Aluminium Chain C-Rails
- 1050mm rail extension
- Compatible with Aluminium C-Rail & Chain – Part No. 100630
- Provides additional rail length for taller garage doors
- Extends the chain-drive system
- Provides additional trolley travel
- Strong mechanical chain drive
- Lightweight aluminium construction
- Excellent corrosion resistance
- Suitable for sectional garage doors
- 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: Aluminium Chain C-Rail Extension Kit
- Part Number: 62720
- Extension Length: 1050mm
- Rail Type: Aluminium C-Rail
- Drive Type: Chain
- Compatible Rail: Aluminium C-Rail & Chain
- Compatible Rail Part Number: 100630
- Application: Sectional Garage Doors
- Product Type: Rail Extension Kit
- Installation: Compatible Aluminium Chain C-Rail Systems
- Genuine Accessory: Yes
Compatibility
The ATA / B&D Aluminium Chain Extension Kit – Part No. 62720 is designed specifically for compatible ATA / B&D Aluminium C-Rail & Chain systems.
It is designed for use with:
- ATA / B&D Aluminium C-Rail & Chain – Part No. 100630
The extension provides an additional 1050mm of rail length for taller sectional garage door applications.
Operator compatibility will depend on whether the particular ATA or B&D powerhead is designed for use with the aluminium chain C-rail system.
⚠️ Please Note
The 62720 is specifically the Aluminium Chain C-Rail Extension Kit and adds 1050mm of additional rail length.
It should not be confused with:
- 62711 – Aluminium Belt C-Rail Extension Kit
- 86890 – Steel Chain C-Rail Extension Kit
- 86891 – Steel Belt C-Rail Extension Kit
The extension provides additional rail and chain length but does not increase the lifting capacity of the garage door opener.
The selected powerhead must still be correctly sized for the height, weight and overall size of the garage door.
Please confirm the existing rail type, garage door opener model and garage door height before ordering.
