Can-Stack Rotary Motors

Z20000 20mm

Z20000 Series Haydon Rotary Can Stack Stepper Motor

Haydon's can stack rotary stepper motors are built to provide exceptionally high torque to size ratios. The Haydon Z20000 can stack rotary stepper motor is a 20mm rotary stepper motor with a holding torque of up to .65oz-in(0.46Ncm). Typical applications include medical equipment, bar code scanning devices, printing equipment, laboratory instrumentation and other high torque, small space mechanisms.

Specifications +

Part Number		Z20540-05	Z20540-12
Wiring	Units	Bipolar
Step Angle	Degree	15°
Voltage	VDC	5	12
Current / Phase	A rms	0.25	0.1
Resistance / Phase	ohms (Ω)	20	118
Inductance / Phase	mH	5.5	32
Holding Torque	oz-in (Ncm)	.65 (0.46)
Detent Torque	oz-in (Ncm)	.17 (.12)
Power consumption	Watts	2.5
Rotor Inertia	gcm²	1.13
Weight	oz (g)	0.8 (22.7)
Insulation resistance	M	20
Insulation Class		Class B (75° C Rise)

Standard motors are Class B rated for a maximum temperature of 130°C

Dimensional Drawing +

Sleeve Bearing Motor

Ball Bearing Motor

Performance Curves +

TORQUE vs. PULSE RATE
L/R Drive, Bipolar, 15° Step Angle
25% Duty Cycle is obtained by a special winding or by running a standard motor at double the rated current.

TORQUE vs. PULSE RATE
Chopper Drive, Bipolar, 15° Step Angle
25% Duty Cycle is obtained by a special winding or by running a standard motor at double the rated current.

NOTE: All chopper drive curves were created with a 5 volt motor and a 40 volt power supply.

Ramping can increase the performance of a motor either by increasing the top speed or getting a heavier load accelerated up to speed faster. Also, deceleration can be used to stop the motor without overshoot.

With L/R drives peak force and speeds are reduced, using a unipolar drive will yield a further 30% force reduction.