The Graflex PT150 is a heavy weight capacity, very accurate sensor positioner with a long and successful track record. The unit provides a well developed design fielded in many applications but primarily military related environments. Of course, with a 150# capacity and high density slip rings it is able to carry heavy loads and multiple sensors of all types. The extreme accuracy is appropriately used with long range surveillance sensors with very narrow FOV’s. A powerful GUI for controlling and setting all parameters is provided with each pan & tilt head. Graflex also provides all protocol details allowing the end user to control and set-up the PT150 within their own system.

Technical Specifications


Dimensions 14.0” (w) x 15.0” (h) x 10.0” (d)
Weight 65 Lbs
Base Dimension 9.5” Diameter
Base Mounting See Configuration Guide
Construction Aluminum and Stainless Steel
Color Anodized or Painted & Stainless Steel
Payload Capacity 150 Lbs - Balanced
Drive Motors Brush DC Servo
Travel Range 360° Continuous in Azimuth
  270° Max in Elevation, Factory set to +/-90°
Holding Brake Mechanical w/Electrical Interlock
Tilt Limits Electrical, Mechanical, Software
Backlash Negligible


Interface RS-422 or RS-232
Motor Controller Microprocessor based


Standard Pass-Thru 13 Ea – 2 Amp, 8 Ea – 10 Amp
  (Heater Line NOT Included in Above)
Optional Pass-Thru 19 Ea – 2 Amp, 8 Ea – 5 Amp, 3 Ea - Coax
  (Heater Line NOT Included in Above)
Optional Ethernet  


Voltage 24Vdc (Nominal)
Power 4 Amp Avg, 6 Amp Max
Heater Optional - Pre-wired


Travel Velocity 60°/Sec. to .005°/Sec.
Resolution .0004°
Repeatability .001°
Accuracy .0055°
Payload Inertia 7.82 ft-lb-sec2 (Az.),
  4.78 ft-lb-sec2 (Elev.)
Feedback 20 Bit On-Shaft Encoders
Torque 500 in-lb Continuous
  800 in-lb Peak


Side Brackets 150 Pounds
Over the Top Bracket ± 30° 100 Pounds
  ± 45° 70 Pounds
  ± 60° 58 Pounds


Finish (Coating - Paint)
Payload Mount (Side or OTT)
Thermostat Controlled Heater

Environmental (MIL STD 810E) - Designed to Meet The following Specifications

Storage Temperature: -35° C Through +65° C
Transit Temperature: -35° C Through +65° C
Operating Temperature: -31.7° C Through +60° C
Humidity: 95% Humidity for 60 Hours
Salt Fog: 5% Sodium Chloride (Atomized Spray) Not Less Than 12 Hours
Dust & Wind: Sand/Dust Environment Typical of Dry Desert for NLT 60 Minutes
Vibration: Axial (Angular) Vibration of .1gRMA at 10-150 Hz
Shock: 10 G’s for 11 mSec at Each Axis