MI-55000 Family of Azimuth-over-Elevation-over-Azimuth Positioners

MI-55450 Positioner new colors copy

downloadpdfThe MI-55000 Family of Azimuth-over-Elevation-over-Azimuth Positioners is our most versatile family of positioners. The lower azimuth axis on these positioners allows precise pointing of the upper azimuth over elevation axes. Both eccentric and concentric configurations are available for most models. Note that an installed RF path through each positioner can be ordered as an option.

  • Versatile configuration allows precise pointing of the upper AZ/EL positioner
  • Rugged construction assures superior reliability and longevity
  • Full 360° motion in lower AZ, wide coverage in upper AZ

 

 

 

 

Specifications

Parameter Units 55051D 55150D 55240D 55260D 55290D 55450D 55850D
Total Bending
Moment
ft-lbs 800 2,500 10,000 10,000 30,000 108,000 300,000
Nm 1,085 3,390 13,558 13,558 40,675 146,430 406,746
Total Vertical
Load
lbs 800 2,500 10,000 10,000 30,000 45,000 50,000
kgs 363 1,134 4,536 4,536 13,608 20,412 22,680
Drive Motor
Lower Azimuth hp 1/3 3/4 3/4 3/4 3/4 5 5
kW 0.25 0.56 0.56 0.56 0.56 3.73 3.73
Elevation hp 1/3 1/2 3/4 3/4 3/4 5 5
kW 0.25 0.37 0.56 0.56 0.56 3.73 3.73
Upper Azimuth hp 1/15 1/3 3/4 3/4 3/4 5 5
kW 0.05 0.25 0.56 0.56 0.56 3.73 3.73
Delivered Torque
Lower Azimuth ft-lbs 500 1,000 2,750 6,000 6,000 18,000 80,000
Nm 678 1,356 3,729 8,135 8,135 24,405 108,466
Elevation ft-lbs 800 2,500 10,000 10,000 20,000 90,000 150,000
Nm 1,085 3,390 13,558 13,558 27,116 122,024 203,373
Upper Azimuth ft-lbs 100 500 1,000 1,000 2,750 18,000 40,000
Nm 136 678 1,356 1,356 3,729 24,405 54,233
Withstand Torque
Lower Azimuth ft-lbs 800 800 2,500 2,500 10,000 18,000 75,000
Nm 1,085 1,085 3,390 3,390 13,558 40,675 101,687
Elevation ft-lbs 800 2,500 10,000 10,000 30,000 108,000 300,000
Nm 1,085 3,390 13,558 13,558 40,675 146,429 406,746
Upper Azimuth ft-lbs 200 600 1,850 1,850 3,800 18,000 55,000
Nm 271 813 2,508 2,508 5,152 24,405 74,570
Maximum Full Load Speed
Lower Azimuth rpm 1.2 1.3 0.50 0.2 0.2 0.5 0.09
Elevation deg/min 200 140 32 32 20 20 10
Upper Azimuth rpm 1.3 1.2 1.2 1.2 0.5 0.5 0.2
Position Accuracy
Lower Azimuth deg 0.03 0.03 0.03 0.02 0.02 0.02 0.02
- with
Inductosyn®
encoder
deg N/A N/A ±0.005 ±0.005 ±0.005 ±0.005 N/A
Elevation deg 0.05 0.05 0.05 0.05 0.05 0.05 0.03
- with
Inductosyn®
encoder
deg N/A N/A ±0.005 ±0.005 ±0.005 ±0.005 N/A
Upper Azimuth deg 0.05 0.03 0.03 0.03 0.03 0.02 0.02
- with
Inductosyn®
encoder
deg N/A N/A ±0.005 ±0.005 ±0.005 ±0.005 N/A
Maximum Drive Gear Backlash
Lower Azimuth deg 0.15 0.10 0.08 0.08 0.08 0.05 0.02
Elevation deg 0.08 0.05 0.05 0.03 0.03 0.03 0.02
Upper Azimuth deg 0.20 0.15 0.10 0.10 0.10 0.05 0.02
Dimensions
Total Elevation
Limit-to-Limit
Travel
deg +95;-45 +95;-45 +92;-45 +95;-45 +92;-45 +92;-45 +92;-20
Convertible to Concentric Configuration   No Yes Yes Yes Yes Yes No
Turntable
Diameter
in 16 28 43 43 44 47.3 83
mm 406 711 1,092 1,092 1,118 1,201 2,108
Base Outside Diameter in 24 28.75 36 56 56 56 92
mm 610 730 914 1,422 1,422 1,422 2,337
Center Access Hole Diameter in 3.75 3 3 3 3 6 8
mm 95 76 76 76 76 152 203
Total Height in 44.38 45.38 55.19 84.69 91.63 114.25 165.75
mm 1,127 1,153 1,402 2,151 2,327 2,902 4,210
Net Weight lbs 670 940 2,285 5,800 6,400 11,600 50,000
kgs 304 426 1,036 2,631 2,903 5,262 18,143

Applications

Using this configuration allows a range designer to configure multiple-source ranges. With this range design, the test positioner is located at the intersection point of the different source antenna’s radiating path.

Configuration Options

Feedback Limit Switches Rotary Joint w/ RF path Slipring Assembly RF Switch Wiring Concentricity
-FDS -LS -RJ0 -SR0 -SW0 -CE
-FDS
Dual Speed
Synchro (36:1)
All Axes
-LS0
No Adjustable Limit
Switches
-RJ0
No Rotary Joint
-SR0
No Slipring
-SW0
No RF Switch Wiring
-CE
Eccentric

-FI
Inductosyn®
All Axes

-LS
Adjustable Limit Switches, AZ Only
-RJ18
DC-18GHz, AZ Only
-SR60
60 Conductor
-SW
RF Switch Wiring
-CC
Concentric
    -RJ26.5
DC-26.5GHz, AZ Only
-SR84
84 Conductor
   
    -RJ40
DC-40GHz, AZ Only
     

Option Compatibility Table

Model Feedback Limit Switches Rotary Joint with RF Path Slipring Assembly1 RF Switch Wiring Mounting Base
55051D FDS only Yes Yes1 No 2 No
55150D FDS only Yes Yes1 SR60 Only1 2 Yes
55240D Yes Yes Yes1 SR60 Only1 Yes1 Yes
55260D Yes Yes Yes1 Yes1 Yes1 Yes
55290D Yes Yes Yes1 Yes1 Yes1 Yes
55450D Yes Yes Yes1 Yes1 Yes1 Yes
55850D FDS only Yes Yes1 Yes1 Yes1 No

1 Rotary Joint with RF Path requires slipring assembly
2 Available on special request. Consult factory

55050D