The Marantec RDO Size 1 G (6) is a:

• Roller Door Operator (RDO)
• Designed for industrial and commercial rolling doors / shutters
• Compact gear-driven motor unit mounted directly to the door shaft

 In simple terms:
It is the drive unit that physically lifts and lowers a roller shutter, similar in function to tubular motors—but much stronger and designed for industrial duty.

Core Features

Mechanical Design

• Direct shaft-mounted operator (gear reduction drive)
• Suitable for roller shutters / sectional rolling doors
• Typically includes:
  • Integrated gearbox + motor assembly
  • Optional chain hoist or manual override (NHK)

Control Integration

• Works with Marantec control panels such as:
  • CS series
  • AS 210 B (with modules like ZM-SKS B)
• Supports:
  • Deadman (hold-to-run) operation
  • Automatic operation (with safety modules)

Typical Technical Specifications (Size 1 Class)

While exact values vary slightly by revision, Size 1 G (6) generally falls into this performance range:

 “G (6)” usually refers to:

• Gear version / reduction ratio
• Affecting speed vs torque characteristics

Functional Role in a System

The RDO Size 1 G (6) is the primary drive motor, and works together with:

• Control panel (e.g., AS 210 B)
• Safety modules (e.g., ZM-SKS B)
• Safety devices:
  • Safety edges
  • Photo cells

What it actually does:

• Rotates the door barrel/shaft
• Raises/lowers the curtain
• Responds to control inputs (open/close/stop)

Key System Capabilities

When paired with the correct controller:

Safety

• Obstruction detection (via control system)
• Safety edge integration
• Emergency stop compatibility

Automation

• Automatic closing timers
• Traffic light / warning outputs
• External control inputs (switches, remotes)

Installation & Mechanical Notes

• Mounted directly onto the roller shaft
• Requires:
  • Proper shaft alignment
  • Correct torque sizing for door weight
• Can include:
  • Manual chain override for power failure
• Installed typically on industrial roller doors, not residential garages

Position in Marantec Range

 So this sits in the entry-level industrial operator category, above tubular motors but below heavy-duty operators.

(The Company reserves the right to amend product specifications and information without notice.)