DORMA ED400-IG In-Floor Operator Components
The DORMA ED400-IG is a concealed in-floor automatic door operator designed for smooth, reliable operation while maintaining a clean architectural appearance. The system is housed below the floor and connects to the door through a concealed pivot assembly.
Main Assembly Components
Cement Case Assembly
The cement case forms the primary enclosure installed within the floor.
Components Include:
- Cement Case
- Cement Case Covers
- Perimeter Gasket
- Cover Plate Fasteners
- Conduit Connector
Operator Housing
The operator housing supports and protects the drive system and internal components.
Components Include:
- Steel Base
- Motor Mount Bracket
- Front Pivot Housing Riser
- Rear Pivot Housing Riser
- Base Plate
- Top Plate
- Lateral Bushing
- Lateral Wedge
- Lateral Hex Wedge
Drive System
The drive system transfers power from the motor assembly to the door pivot mechanism.
Components Include:
- Drive Chain or Belt
- Drive Sprocket (Splined)
- Drive Sprocket Spacer
- Chain Tensioner
- Chain Tension Stop Bolt
Pivot Assembly
The pivot assembly provides controlled door movement and transfers operating force from the drive system to the door.
Components Include:
- Pivot Arm Spindle
- Spindle Sprocket
- Anti-Slip Collar Assembly
- Alternate Anti-Slip Collar Assembly
- O-Ring
- Bearing Cover
- Thrust Bearings
- Needle Bearings
- Flat Washers
- Spacers
- Spindle Needle Seal
Threshold Components
The threshold assembly provides the interface between the concealed operator and the door opening.
Components Include:
- Threshold Seal
- O-Ring Seal
- One-Way Retaining Rings
Motor and Operator Assembly
The motor assembly powers the operator and controls automatic door movement.
Components Include:
- Motor
- Operator Assembly
Replacement Parts Reference
Item No. | Description |
1A | Cement Case |
1B | Cement Case Cover |
1C | Cement Case Cover |
1D | Perimeter Gasket |
1F | Case Coupler Plate |
1G | Conduit Connector |
2A | Steel Base |
2B | Motor Mount Bracket |
2C-T | Front Pivot Housing Riser |
2D-T | Rear Pivot Housing Riser |
2F | Top Plate |
2G | Lateral Bushing |
2H | Chain Tension Stop Bolt |
2J | Base Plate Bolt |
2L | Lateral Wedge |
2M | Top Chain Tensioner |
3A | Pivot Arm Spindle |
3B | Spindle Sprocket |
3C | Shaft Key |
3D-1 | Standard Anti-Slip Collar Assembly |
3D-2 | Alternate Anti-Slip Collar Assembly |
3E | O-Ring |
3F | Bearing Cover |
3G | Thrust Bearing |
3H | Spindle Needle Seal |
3J | Threshold Seal |
3L | O-Ring Seal |
3M | One-Way Retaining Ring |
4A–4F | Bearing and Washer Components |
5 | Drive Chain or Belt |
6 | Threshold Assembly |
7 | Operator Assembly |
Applications
The ED400-IG concealed floor operator is commonly specified for:
- Commercial entrances
- Aluminum storefront doors
- Healthcare facilities
- Educational buildings
- Government facilities
- High-end architectural projects requiring concealed automation
This in-floor design eliminates the need for overhead operators while providing reliable automatic door operation and a clean aesthetic appearance.