MEC-POL-8 Polarization Positioner


Bending Moment, Static:
8,135 Nm (6,000 ft-lb)
Operating Load:
1,814 kg (4,000 lb)
Maximum Speed:
2 rpm
Instructions:
Make your selection below starting from the top option. Reload page to reset options. See below for definitions of factory installed options.
Sales Tax and Shipping:
Calculated at Checkout

Please place a quote for pricing of this product.

Features:

  • Bending moment up to 8,135 Nm (6,000 ft-lb)
  • Precision native accuracy and construction
  • Industry leading power-density versus size
  • Payloads up to 1,814 kg (4,000 lb)

 

  • Superior reliability and longevity
  • Standardized add-on options
  • Durable marine-grade finish
  • All-weather design

 

The MEC-POL-8 Polarization Positioner by NSI-MI Technologies is a high-capacity positioning system designed for demanding applications. With its ability to support loads up to 1,814 kg (4,000 lb), it can handle heavy equipment with ease. Equipped with a brushless servo motor and high-efficiency powertrain components, this positioner offers precise and smooth control. What sets the MEC-POL-8 apart is its user-adjustable hardware limits, allowing for precise positioning and preventing any potential damage. Additionally, a range of configurable options is available, ensuring that the positioner can be customized to meet individual application requirements. If you need a reliable and customizable polarization positioner, the MEC-POL-8 is the perfect choice.

Factory Installed Options:

Options Definitions
Position Feedback PF1: Off-axis absolute encoder
Standard absolute feedback with encoder
PF3: High accuracy, ±0.005 degrees native read-out accuracy for most positoners
Replaces standard absolute feedback with center-drive high accuracy absolute encoder
Limit Switch LS0: No limits, continuous rotation
LS1: Restricted rotation up to ±200 degrees (adjustable)
RF Path RJ Rotary Joint (Continuous Rotation) Adds a single channel RF path inside the positioner supporting continuous, unrestricted rotation of the axis. The factory installed kit contains RF rotary joint and internal RF cabling.

MEC-RJ18: RF path, continuous rotation, DC-18GHz, SMA connector
MEC-RJ26: RF path, continuous rotation, DC-26GHz, 3.5mm connector
MEC-RJ40: RF path, continuous rotation, DC-40GHz, K connector
MEC-RJ50: RF path, continuous rotation, DC-50GHz, 2.4mm connector

RF Path (Restricted Rotation) Adds a single channel RF path inside the positioner with restricted travel of the positioner up to a ±200 degree travel range. The factory installed kit contains internal RF cabling.

MEC-RFP18: RF path, restricted rotation +/-200 Deg, DC-18 GHZ, SMA connector
MEC-RFP26: RF path, restricted rotation +/-200 Deg, DC-26 GHZ, 3.5mm connector
MEC-RFP40: RF path, restricted rotation +/-200 Deg, DC-40 GHZ, K connector
MEC-RFP50: RF path, restricted rotation +/-200 Deg, DC-50 GHZ, 2.4mm connector

Electrical Path

CRT (Continuous Rotation for Thru-Contacts) Adds an electrical path inside the positioner supporting continuous unrestricted rotation for dedicated thru-contacts. The factory installed kit contains an internal electrical slip-ring assembly and internal wiring.
Applications: RF switch control, amplifier DC power, attenuation control.

MEC-CRT24: Wiring support for 24 thru-contacts, continuous rotation

RRT (Restricted Rotation for Thru-Contacts) Adds an electrical path inside the positioner supporting restricted rotation up to ±200 degrees for dedicated thru-contacts. The factory installed kit contains an internal wiring harness, cap and chain protectors.
Applications: RF switch control, amplifier DC power, attenuation control.

MEC-RRT24: Wiring support for 24 thru-contacts, restricted rotation +/-200 Deg

Convenience and Protection

Center Access Tube: Adds an access tube installed inside the center of the positioner to support cabling in restricted travel applications and service loops. This option can not be combined with standard RF and electrical path options. 

MEC-CA1: Center Access Tube

Stow-Pin: Adds manual stow-pin and mating receptacle to protect the positioner’s drive-train in susceptible environments such as high wind-gust exposure in outdoor environments and high-load pick-up mode applications. Includes electrical interlock circuit for disabling the servo system when stow-pin is inserted. Default position is zero (0) degrees. Alternate stow-pin angle locations are available upon request.

MEC-SP1: Stow-Pin, Azimuth / Polarization

 

Specifications:

Model   MEC-POL-8
Bending Moment, Static Nm (ft-lb) 8,135 (6,000)
Bending Moment, Operation Nm (ft-lb) 5,423 (4,000)
Operating Load kg (lb) 1,814 (4,000)
Delivered Torque Nm (ft-lb) 678 (500)
Withstand Torque Nm (ft-lb) 1,017 (750)
Maximum Speed rpm 2
Position Readout Accuracy deg ±0.04 (PF2)
±0.005 (PF3)
Backlash deg 0.1
Limit-to-Limit Travel deg ±200 Adjustable Limit Switch (LS1)
or Continuous (LS0)

Ideal For:

  • General purpose positioning
  • Antenna testing
  • Radome measurement
  • Satellite payload testing
  • Radar cross section (RCS) measurement

 

  • Pointing and tracking
  • Ground communication
  • Factory automation
  • Scientific and R&D
  • Surveillance

Includes:

  • User manual
  • Maintenance manual
  • Interface control drawing