User guide

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Azimuth Positioners – Heavy Duty
AL- 2760-1
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AL-2760 -1-1.5HP
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AL- 2761-1
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AL- 2763-1
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AL- 2860-1
AL-2860 -1-1.5HP
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AL- 2861-1
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AL- 2960-1
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AL- 4750-1
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AL- 4760-1
AL- 4860-1
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AL- 7760-1
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AL- 7760-1-TH
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AL- 8860-1
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AL-9960-1
HEAVY DUTY
➊ APPLICATIONS
• General Purpose Positioning
Subsystems
• Far-Field & Near-Field Antenna
Measurements
• Indoor & Outdoor Use
➋ PRODUCT HIGHTLIGHTS
• Broad Selection – 14 Models
• Vertical Loads Ranging from 50,000
to 550,000 lbs (22,680 to 250,000 kg)
• Turntable Diameters Ranging from
47.2 to 122.0 in (1,200 to 3,100 mm)
• Excellent Angular Position Accuracy
• Low Backlash Design
• Precision Bearings
• Closed Loop Servo Control
• Industry-Standard Wiring
• Tachometers for Optimum Speed
Regulation & Control
• Wide Operating Temperature Range:
- 4° F to 140° F (- 20° C to 60° C)
• Fully Enclosed Design of Drive Gear
Train & Data Take-Off
• Wide Variety of Available Options
ORBIT/FR Legacy Series azimuth positioners provide
accurate rotation, velocity, and direction for customers
involved in antenna design and development.
Their rugged yet simple construction ensures maximum
reliability and trouble-free operation, yielding the best
size and weight versus performance ratio.
Typically, the primary components include the body, precise slew bearing, DC motor, gear reducer,
synchro assembly, and limit switch assembly. The turntable surface is designed with a threaded
mounting hole pattern for customer use. A Safe/Operate switch is included to ensure the safety
of working personnel.
AL-4760-1
LEGACY SERIES AZ