MDrive34 Microstepping Datasheet REV121704 3
300
250
200
150
100
50
0
1334
1112
890
667
445
222
0 1000 2000 3000 4000 5000 6000
Speed in Full Steps per Second
Force in lbs
Force in N
w D
w C
w B
w A
Scre
Scre
Scre
Scre
500
450
400
350
2224
2002
1779
1557
Load Limit 500lbs / 2224N
7000
w EScre
300
250
200
150
100
50
0
1334
1112
890
667
445
222
0 1000 2000 3000 4000 5000 6000
Speed in Full Steps per Second
Force in lbs
Force in N
w D
w C
w B
w A
Scre
Scre
Scre
Scre
500
450
400
350
2224
2002
1779
1557
Load Limit 500lbs / 2224N
7000
w EScre
300
250
200
150
100
50
0
1334
1112
890
667
445
222
0 1000 2000 3000 4000 5000 6000
Speed in Full Steps per Second
Force in lbs
Force in N
w D
w C
w B
w A
Scre
Scre
Scre
Scre
500
450
400
350
2224
2002
1779
1557
Load Limit 500lbs / 2224N
7000
w EScre
MDRIVE34 MOTOR SPECIFICATIONS
MD3424 Single Stack
Holding Torque .................381.0 oz-in / 269 N-cm
Detent Torque.....................10.9 oz-in / 7.7 N-cm
Rotor Inertia ........0.01416 oz-in-sec
2
/ 1.0 kg-cm
2
Weight (Motor+Driver)............... 67.4 oz / 1909 g
MD3431 Double Stack
Holding Torque .................575.0 oz-in / 406 N-cm
Detent Torque.................14.16 oz-in / 10.0 N-cm
Rotor Inertia ........ 0.02266 oz-in-sec
2
/ 1.6 kg-cm
2
Weight (Motor+Driver)................92.1 oz / 2609 g
MD3447 Triple Stack
Holding Torque ...............1061.0 oz-in / 749 N-cm
Detent Torque.................19.83 oz-in / 14.0 N-cm
Rotor Inertia ........ 0.04815 oz-in-sec
2
/ 3.4 kg-cm
2
Weight (Motor+Driver)..............148.5 oz / 4209 g
MD3429 Linear Actuator
Maximum Thrust .......................500 lbs / 2224 N
Maximum Screw Defl ection ............................. ± 1°
Backlash ............................ 0.005 in / 0.127 mm
Weight (without screw)............... 89.0 oz / 2523 g
TORQUE-SPEED CURVES
Rotary Motor
MD3424 Single Stack
MD3431 Double Stack
MD3447 Triple Stack
FORCE-SPEED CURVES
Linear Actuator
24 VDC
48 VDC
75 VDC
400
350
300
250
200
150
100
50
0
282
247
211
170
141
106
71
35
0 1000 2000 3000 4000 5000 6000 7000
Speed in Full Steps per Second
Torque in Oz - In
Torque in N - cm
24VDC
45VDC
75VDC
400
450
500
550
350
300
250
200
150
100
50
0
0 1000 2000 3000 4000 5000 6000 7000
S
eed in Full Ste
s
er Second
Torque in Oz - In
T
orque in N - cm
24VDC
45VDC
75VDC
282
247
211
423
353
318
170
141
106
71
35
900
1000
1100
1200
800
700
600
500
400
300
200
100
0
0 1000 2000 3000 4000 5000 6000 7000
Speed in Full Steps per Second
Torque in Oz - In
T
orque in N - cm
45VDC
75VDC
465
494
423
777
847
706
635
353
282
211
140
71
24VDC
