The M2 Orion 2800 is a heavy-duty antenna rotator designed for large, mast-mounted systems, with specifications including a 3,200 in-lbs turning power, 17,000 in-lbs braking torque, and a maximum wind load of 35 sq. ft. It features a gear-reduction brake, dual thrust bearings for high vertical load capacity, and a 6-splined output shaft for a secure mast connection. The unit is designed to fit inside common towers and has a total height of 15.75 inches. 
 
Core specifications
Turning Power:
3,2003 comma 200
3,200 in-lbs
Braking Torque:
17,000 in lbs
Maximum Wind Load:
35 sq. ft.
Brake Type: Gear reduction
Bearing Type:
Thrust, 2,000 lbs, with a second side thrust bearing in newer versions
Height: 15.75 inches (total with clamps)
Width:9 inches
Weight: 42 lbs 
 
Key features
 
Shaft and Gear: A 6-splined output shaft and a heat-treated, machined steel gear train. 
Durability: A thrust collar with dual seals to protect against water intrusion and shaft movement. 
Mast Support: Accommodates masts from 1.75
to 3.125  inches in diameter (up to 3.5  inches with user-supplied hardware). 
Drive: Uses a precision worm drive, which provides a built-in automatic mechanical brake. 
Positioning: Features a magnetic pulse circuit for position accuracy.