Burchfield Automation

Your leader in precise, accurate, quality pan and tilt units.

Burchfield Automation

Ph: 985-639-0005

60207 Camp Villere Rd

Slidell, LA 70460

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777pThe CLU-777 is a very small form factor PT with huge torque 136 lb-ft and uncompromised resolution and accuracy.

General Specifications

Payload Max 120 lbs (Center of mass 12" from EL center of rotation)
Elevation Torque 136 ft-lbs Continuous
Azimuth Torque 136 ft-lbs Continuous
Elevation Velocity 70 deg/second (with 48 volt supply)
Azimuth Velocity 70 deg/second (with 48 volt supply)
Azimuth Range 540 degrees or continuous rotation (optional)
Elevation Range 180 deg
Encoder Resolution .000254 deg Azimuth and Elevation
Angular Accuracy Better than 0.016 deg
Angular Repeatability Better than 0.0055 deg
Housing Aluminum with Stainless Steel fasteners
IP Rating IP 67
Weight <25 lbs 


RS-232, RS-485, CAN, Ethernet, Device Net

Power Requirements

24 to 48 VDC @ 4 amps

Payload Control inside Pan/Tilt

 All internal electronics can be controlled and interrogated from host thru main communication channel. No need to pull separate communication lines for payloads.

  • 2 RS-232 ports
  • 2 RS-485 ports
  • 10 I/O points can be assigned as Digital IN digital OUT or Analog IN
  • 2 External Encoder inputs


  • Stabilization (see Stabilization Module Specs.)
  • Elevation Axis can be electronically geared to Azimuth axis at any ratio to create an equatorial mount for example.
  • Slip rings for continuous rotation in Azimuth.