Rotary ultrasonic piezomotors

Specifications

Piezomotor Type*	Piezo Rhino™ series
Motor Model	PM-20	PM-22R	PM-20RS	PM-22RS	PM-28R	PM-28RS	PM-46	PM-46R	PM-46RS
Data Sheet	PM-20R	PM-22R	PM20R	PM-22R	PM-28R	PM-28R	PM-46	PM-46R	PM-46R
Encoder	Optional	Optional	Yes	Yes	Optional	Yes	Optional	Optional	Optional
Mode of operation**	Cont/Step	Cont/Step	Cont/Step	Cont/Step	Cont/Step	Cont/Step	Cont/Step	Cont/Step	Cont/Step
Uni/Bi-directional	Bi	Bi	Bi	Bi	Bi	Bi	Uni	Bi	Bi
Max torque (N.m.)	0.1	0.5	0.1	0.5	1.2	1.2	5	1.8	1.8
Self-braking torque (N.m.)	0.11	0.55	0.11	0.55	1.4	1.4	3.0	1.9	1.9
Max speed (rev/min)	60	30	60	30	>20	>20	120	>20	>20
Min angular step (arcsec)	1	0.5	1	0.5	0.4	0.4	0.3	0.3	0.3
Dynamic range (kHz)	4	3	4	3	2	2	2	2	2
Supply voltage (V)	12	12	12	12	12	12	12	12	12
Operating current (mA)	<400	<700	<400	<700	1,000	1,000	15,000	1,500-2,000	1,500-2,000
Motor weight (g)	100	220	220	360	750	800	800	800	820
Dimensions (mm x mm)	Ø38x45	Ø50x55	Ø38x100	Ø50x100	Ø80x80	Ø80x125	Ø80x80	Ø80x80	Ø80x100

*Specifications will vary depending on requirements, (RA = encoder coupling included)

**Cont = Continuous mode; Step = Stepping mode

Piezomotor Type*	Piezo Rhino™ series (pcb-mounted)
Motor Model	UPM-20	UPM-22	UPM-46 (Option 1)	UPM-46 (Option 2)
Data Sheet	UPM-20	UPM-22	UPM-46	UPM-46
Encoder	Optional	Optional	Optional	Optional
Mode of operation**	Cont/Step	Cont/Step	Cont/Step	Cont/Step
Uni/Bi-directional	Uni	Uni	Uni	Uni
Max torque (N.m.)	0.1	0.5	5	3.5
Self-braking torque (N.m.)	0.11	0.5	5	3.5
Max speed (rev/min)	60	30	>30	>40
Min angular step (arcsec)	1	0.5	0.3	0.3
Dynamic range (kHz)	4	3	2	2
Supply voltage (V)	12	12	12	12
Operating current (mA)	<400	<700	1,500-1,800	2,500-2,800
Motor weight (g)	30	50	250	250
Dimensions (mm x mm)	Ø32x24	Ø45x30	Ø80x28 (w/o shaft) Ø80x46 (with shaft)	Ø80x28 (w/o shaft) Ø80x46 (with shaft)

*Specifications will vary depending on requirements

**Cont = Continuous mode; Step = Stepping mode

Piezomotor Type*	Piezo Beetle™ series
Motor Model	PMLL-18R	PMLL-11R	PMLB-3/27R
Data Sheet	PMLL-18R		PMLB-3/27R
Encoder	Optional	Optional	Optional
Mode of operation**	Cont/Step	Cont/Step	Cont/Step
Uni/Bi-directional	Bi	Bi	Bi
Max torque (N.m.)	10 mN.m	2 mN.m	2 mN.m
Self-braking torque (N.m.)	20 mN.m	2 mN.m	2 mN.m
Max speed (rev/min)	>60	100	120
Min angular step (arcsec)	1	10	10
Dynamic range (kHz)	4	4	4
Supply voltage (V)	12	12 (or lower)	12 (or lower)
Operating current (mA)	<400	<100	<100
Motor weight (g)	15	8	5
Dimensions (mm x mm)	Ø19x24	Ø12x15	Ø9 X 6 x 48 (pcb)

*Specifications will vary depending on requirements

**Cont = Continuous mode; Step = Stepping mode

DTI’s ultrasonic piezoelectric rotary motors are divided into two types depending on size and design construction, these are referred to as the Piezo Rhino™ and Piezo Beetle™ series.

The Piezo Rhino™ (big, powerful, fast and precise) series incorporate a unique (patents pending) combined rotary piezoresonator technology enabling a substantial increase in the coupling efficiency between the stator and the rotor. This, together with the fact that the piezomotor is a resonance motor, substantially increases the overall motor efficiency, providing simultaneously superior resolution and torque.

The Piezo Rhino series includes a wide range of powerful bidirectional (reversible) and unidirectional models, including a range of novel pcb-mounted piezomotors.

The Piezo Beetle™ (small, agile and powerful) series are unique (patents pending) miniature ultrasonic rotary piezomotors offering sizes (O.D.) below 10 mm. These motors are based on a single composite piezoelement-pusher component utilizing a novel excitation method in which bidirectional rotation is achieved using a relatively compact and inexpensive design.

Rotary ultrasonic piezomotors

Piezomotor Type*

Piezomotor Type*

Piezomotor Type*