Features:
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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 |
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| 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 |
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| 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 |
| 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 |
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| 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. MEC-CRT24: Wiring support for 24 thru-contacts, continuous rotation |
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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. MEC-RRT24: Wiring support for 24 thru-contacts, restricted rotation +/-200 Deg |
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| 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 |
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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:
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Includes:
- User manual
- Maintenance manual
- Interface control drawing
