www.alliedmotion.com
© Allied Motion Technologies Inc. Specifications subject to change without notice
1
Torque Motors
• High torque density frameless
brushless motors
• Continuous stall torque from
0.007 Nm (1.0 oz-in) through 9
Nm (1277 oz-in)
• Continuous power ratings from
7 W through 665 W.
Allied Motion’s HT (High Torque)
series of frameless brushless torque
motors are available in nine diameters
from 19.3 mm (0.76 in) up to 127 mm
(5 in). The HT0230x series is featured in
this datasheet.
Each frame size is available in up to six
stack lengths, enabling designers to
choose from a number of performance
levels in each frame size.
Continuous stall torque ratings range
from 0.007 Nm (1.0 oz-in) up to 9 Nm
(1277 oz-in). Winding voltage is 24 V
and 100 V for the largest two frame
sizes. Integral Hall effect commutation
sensors are provided as standard, and
require no setup on the part of the user.
The standard HT series motors are
especially well suited for direct
integration into applications that
demand high power density motors with
minimum size, weight, and inertia. Non-
standard models of the HT series are
also available in stator diameters up to
239 mm (9.42 in).
Typical applications for the HT series
are semiconductor manufacturing
equipment, medical systems, including
life support, robotic systems, laser
sighting and control, and cryogenic
cooling pumps, to name a few.
Features & Benefits
• Frameless high torque-to-inertia
motors with continuous stall torque
rating up to 9 Nm (1277 oz-in)
• Frame diameters from 19.3 mm
(0.76 in) to 127mm (5 in)
• Continuous power ratings from 7 W
up to 665 W
• Class F (155 °C) winding insulation
temperature rating
• Rare-earth neodymium iron boron
magnets as standard
• Integral hall-effect commutation
sensors as standard
Options
• Samarium Cobalt magnets for very
high temperature environments.
• Available non-standard designs with
stator diameter up to 239 mm
(9.42 in)
• Alternate winding voltages
• Housed versions with feedback
(encoder or resolver)
• Custom design versions
HT0230x Series High Torque Brushless Torque Motors
High Torque Density, Sinusoidal BEMF, Frameless
SPECIFICATIONS SUMMARY
Model Units HT0080x HT0100x HT0150x HT0200x
HT0230x
HT0250x HT0300x HT0380x HT0500x
Rated Power W 7 - 13 11 - 26 31 - 71 48 - 97 56 - 129 59 - 167 89 - 291 170 - 383 271 - 665
Stall Torque
(continuous)
oz-in 1.1 - 3.0 3.4 - 12.7 7.5 - 36.2 17.9 - 93.2 35.9 - 175.8 30.6 - 174.8 57.3 - 317.9 111.8 - 653.8 226 - 1277
Nm 0.008 - 0.021 0.024 - 0.09 0.053 - 0.256
0.127 -
0.658
0.254 -
1.242
0.216 -
1.235
0.405 - 2.245 0.789 - 4.617 1.60 - 9.02
No-load Speed RPM 10891 - 18298 4796 - 8510 2713 - 6897 1429 - 3948
618 - 1904
847 - 1954 797 - 1857 545 - 1568 419 - 1424
Winding
Voltage
VDC
24
100
Issued: December 18, 2015
www.alliedmotion.com
© Allied Motion Technologies Inc. Specifications subject to change without notice
2
Torque Motors
HT0230x Series High Torque Frameless Brushless Torque Motors
SPECIFICATIONS
DIMENSIONS
in (mm)
Model No. HT02300-A00 HT02301-A00 HT02302-A00 HT02303-A00 HT02304-A00 HT02305-A00
Stall Torque (continuous)
(1)
oz-in 35.9 72.7 100.3 124.8 164.6 175.8
Nm 0.254 0.513 0.708 0.882 1.162 1.242
Demag Torque (±25%)
oz-in 329 675 1035 1298 1561 1838
Nm 2.32 4.76 7.31 9.16 11.0 12.9
Rated Power
(1)
W 56 81 97 111 123 129
Motor Constant
oz-in/√W 8.17 15.69 21.13 25.11 32.00 33.57
Nm/√W 0.058 0.111 0.149 0.177 0.226 0.237
Elect. Time Constant ms 0.4 0.6 0.7 0.7 1.0 0.9
Mech. Time Constant ms 3.9 2.1 1.7 1.6 1.2 1.4
Thermal Resistance °C/W 3.7 3.3 3.1 2.8 2.6 2.5
Cogging Torque (max.)
oz-in 1.900 2.800 3.800 5.000 6.100 7.300
Nm 0.013 0.020 0.027 0.035 0.043 0.052
Rotor Inertia
oz-in-s
2
1.9E-3 3.9E-3 5.9E-3 7.8E-3 9.8E-2 1.2E-2
kg-m
2
1.4E-5 2.8E-5 4.1E-5 5.5E-5 6.9E-5 8.3E-5
Weight
oz 6.0 11.6 17.0 22.2 28.6 33.8
kg 0.17 0.33 0.48 0.63 0.81 0.96
Poles - 12
Winding Code - A
Winding Voltage V 24
Peak Torque
oz-in 99 208 309 370 495 540
Nm 0.70 1.47 2.18 2.62 3.50 3.81
Peak Current A 6.2 7.3 8.9 9.1 10.0 10.8
Torque Constant (±10%)
oz-in/A 16.1 28.4 34.7 40.8 49.6 50.1
Nm/A 0.114 0.20 0.245 0.288 0.350 0.354
No-Load Speed
RPM 1904 1056 859 729 600 618
rad/s 202 111 90 76 63 65
BEMF Constant (±10%)
V/kRPM 11.92 20.97 25.63 30.19 36.69 37.05
V/rad/s 0.114 0.20 0.245 0.288 0.350 0.354
Terminal Resistance (±12%) Ohms 3.89 3.27 2.69 2.65 2.40 2.23
Terminal Inductance (±30%) mH 1.46 1.97 1.95 1.83 2.31 1.99
(1) Motor mounted to a 102 mm sq. x 6.35 mm (4.0 in. sq x 0.25 in.) thick aluminum plate and ambient temperature of 20 °C
Issued: December 18, 2015