Automatic Technology 87618 Mini Door Extension Kit

The Automatic Technology 87618 Axle Extension Kit is designed to provide additional side room for installing an Automatic Technology Sheet Door Operator on rolling steel and sheet doors. By adding approximately 4-1/2 inches of axle extension space, this kit helps accommodate operator mounting in applications with limited clearance.

Compatible with both 1-inch and 1-1/4-inch axles, this extension kit is suitable for rolling steel doors, mini warehouse doors, roll-up doors, and self-storage door systems. The kit installs on the right side of the door and includes all required mounting hardware for installation.

Key Features

• Adds approximately 4-1/2" of axle side room
• Designed for Automatic Technology sheet door operator installations
• Compatible with 1" and 1-1/4" sheet door axles
• Suitable for rolling steel, roll-up, mini warehouse, and self-storage doors
• Right-side installation configuration
• Includes mounting hardware and installation instructions

Compatible Operators

• Automatic Technology Dominator EasyRoller14 Sheet Door Operator
• Automatic Technology Hiro High Rolling Sheet Door Operator
• Automatic Technology ShedMaster Sheet Door Operator

Kit Contents

• Hanger bracket
• 1" OD extension pipe
• 1-1/4" OD extension pipe
• Four hex head self-tapping screws
• Two nuts and bolts
• One U bolt and saddle
• Installation instructions

Application Notes

• Used to create additional mounting clearance for sheet door operators
• Supports retrofit and new operator installations
• Designed for commercial and self-storage door systems

The Automatic Technology 87618 axle extension kit provides a practical solution for installations requiring additional operator clearance. Its compatibility with common axle sizes and included hardware make it suitable for a wide range of rolling door applications.