RAS Series Hollow Shaft

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DTI’s RAS Series rotary piezo motor represents a quantum leap in design of ultra-small size high-performance DC motors. Injection-molded using extremely durable, but light weight engineered reinforced thermoplastics, the RAS Series provides low cost with superior precision and ultrafast response/start-stop characteristics. Highly energy efficient, the RAS Series consumes zero power in hold position while still providing adequate torque. Available in a variety of configurations (including non-magnetic) the RAS Series is the ideal choice for high volume demanding OEM applications where superior performance and economical unit cost are important factors.

Motor SpecificationsStandardEncoder
Mode of Operation Stepping & Continuous
Maximum Torque0.6 / 1.0 / 2.5mN.m
Self Braking Torque1.1 / 1.1 / 2.8mN.m
Response Time10µs to 30µs
Maximum Speed150 / 300 / 600 rpm
Minimum Angular Step (resolution) 30µrad
Minimum controlled angular Step N/A6.1mrad
Uni-directional Repeatability N/A+/- 40 arc-min
Dynamic Range 4 kHz
Angular Hysteresis of Rotational Axis at Direction Change <30µrad
Supply Voltage for Driver 5 VDC
Operating Temperature -20° to 80°C
Max Current over velocity range 50 / 100 / 300mA
Motor Weight 4g6g
Motor Dimensions (mm) 13x18.7x8.213x18.7x15
Driver PCB Dimensions (mm) 40x25x1440x25x14
Control Open loopClosed loop

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