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Slotless Brushless DC Mini Motor

22ECT60 ULTRA EC - Slotless Brushless DC Mini Motor

22ECT60 ULTRA EC

The 22ECT Ultra EC is designed specifically to deliver ultra high torque in a compact size. The 22ECT is specifically optimized for high continuous torque at low to medium speeds, maximizing power between 10 K and 20 K rpm. These motors are capable of delivering 2 times higher continuous torque than comparable BLDC motors of same size over the entire low speed range, that includes typical conditions of use with gear trains.

Motor Highlights

  • Small package, 2 standard lengths available
  • Proprietary coil design, high efficiency
  • Access similar or higher torques than DC motors with much higher lifetimes
  • Best in class torque capability for BLDC motors in this size, using 4 poles design

Customization Available

  • Connector
  • Different coil impedance
  • Shaft lengths
  • Embeded temperature sensor

Applications

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Specification + Detail
Resources
Metric English 
Winding{%|%}unit 22ECT60 10B 9 22ECT60 10B 15 22ECT60 10B 21
Diameter{%|%}in 0.87 0.87 0.87
Diameter{%|%}mm 22 22 22
Length{%|%}in 2.36 2.36 2.36
Length{%|%}mm 60.00 60.00 60.00
Nominal Voltage{%|%}Volt 24.0 24.0 24.0
Optimization Speed 0 0 0
No-Load Speed{%|%}rpm 20,370 12,350 9,180
Typical No-Load Current{%|%}mA 370 170 115
Max continuous mechanical power (@ 25°C){%|%}W 86.0 86.0 86.0
Max continuous Current{%|%}A 5.9 3.6 2.6
Max Continuous Torque{%|%}mNm 65.90 66.90 64.30
Max Continuous Torque{%|%}oz-in 9.33 9.47 9.10
Terminal Resistance{%|%}Ω
Output Power{%|%}W
Stall Torque{%|%}oz-in
Stall Torque{%|%}mNm
Efficiency{%|%}%
Speeds up to{%|%}rpm
Torque up to{%|%}oz-in
Torque up to{%|%}mNm
Current up to{%|%}thermal limits
Back-EMF Constant{%|%}V/1000 rpm 1.16 1.97 2.72
Torque Constant{%|%}mNm/A 11.12 18.77 25.97
Torque Constant{%|%}oz-in/A 1.57 2.66 3.68
Motor Regulation R/k²{%|%}10³/Nms
Motor Constant k/R½{%|%}mNm/W½ 25.5 26.0 25.0
Motor constant k/R½{%|%}oz-in/W½ 3.60 3.70 1.60
Internal resistance - phase to phase{%|%}Ω 0.19 0.52 1.08
Line to Line resistance at connectors{%|%}Ω 0.22 0.55 1.11
Inductance - phase to phase{%|%}mH 0.02 0.06 0.12
Friction Torque{%|%}onz-in
Friction Torque{%|%}mNm
Rotor Inductance (mH)
Mechanical Time Constant{%|%}ms 1.3 1.3 1.4
Electrical time constant{%|%}ms 0.11 0.12 0.11
Max motor speed{%|%}rpm 20,000 20,000 20,000
Ambient working temperature range{%|%}°C -30 to + 100 -30 to + 100 -30 to + 100
Ambient working temperature range{%|%}°F -22 to + 212 -22 to + 212 -22 to + 212
Ambient storage temperature range{%|%}°C -40 to + 100 -40 to + 100 -40 to + 100
Ambient storage temperature range{%|%}°F -40 to + 212 -40 to + 212 -40 to + 212
Ball bearings preload{%|%}N 6.8 6.8 6.8
Axial static force without shaft support{%|%}N 45 45 45
Max Winding Temperature (°C)
Max winding temperature{%|%}°C 125 125 125
Max Winding Temperature{%|%}°F
Max winding temperature{%|%}°F 257 257 257
Thermal Resistance{%|%}°C/W 2.0 / 8.8 2.0 / 8.8 2.0 / 8.8
Thermal Time Constant{%|%}s 980 980 980
Operating Temperature Range{%|%}°F
Weight{%|%}oz 4.34 4.34 4.34
Weight{%|%}g 123 123 123
Rotor Inertia{%|%}gcm²
Rotor Inertia{%|%}gcm² 8.7 8.7 8.7
Typical Housing Material Stainless steel aluminum flanges Stainless steel aluminum flanges Stainless steel aluminum flanges
Hall Sensor Elecrical Phasing{%|%}electrical ° 120 120 120
Absolute accuracy 2 ph. On, Full step mode (degree)
Bearing Type
Detent Torque, Max (mNm)
Detent Torque, Max (oz-in)
Dielectric Withstanding Voltage (VAC)
Holding Torque, MIN (mNm)
Holding Torque, MIN (oz-in)
Inductance per Phase, typ (mH)
Insulation Resistance at 500 VDC (Mohms)
Leadwire
Maximum Coil Temperature (C)
Maximum Coil Temperature (F)
Operating Voltage (VDC)
Rated Current per Phase, 1 Phase ON (A)
Resistance per Phase, ± 10% (Ohms)
Rotor Inertia (oz-in-sec²10^-6)
Continuous Stall Current (A)
Peak Torque for 1s (mNm)
Peak Torque for 1s (oz-in)
Peak Current (A)
Max Axial Shaft Load (N)
Max Axial Shaft Load (oz)
Max Radial Shaft Load (N)
Max Radial Shaft Load (oz)
Shaft Load Max Axial (lb)
Shaft Load Max Axial (N)
Shaft Load Max Radial (lb)
Shaft Load Max Radial (N)
Steps per Revolution
Back EMF Amplitude (V/ksteps/s)
Nominal Phase Current (1 ph. On) (A)
Nominal Phase Current (2 ph. On) (A)
Angular Acceleration (nominal current)
Axial Shaft Play (µm)
Holding Torque Typical (mNm)
Holding Torque Typical (oz-in)
Holding Torque, 1.5x nominal current (mNm)
Holding Torque, 1.5x nominal current (oz-in)
Natural Resonance Frequency @nominal current (Hz)
Power rate (nominal current) (kW/s)
Radial Shaft Play (µm)
Max. Force* @ .001" (0.0254 mm) / Step (N)
Max. Force* @ .001" (0.0254 mm) / Step (oz)
Max. Force* @ .002" (0.0508 mm) / Step (N)
Max. Force* @ .002" (0.0508 mm) / Step (oz)
Max. Force* @ .004"(0.1016 mm) / Step (N)
Max. Force* @ .004"(0.1016 mm) / Step (oz)
Stroke Length, Typ{%|%}mm
Stroke Length, Typ{%|%}in
Min. Holding Force (Unenergized) @ .0005" (0.0127 mm) / Step{%|%}N
Min. Holding Force (Unenergized) @ .0005" (0.0127 mm) / Step{%|%}oz
Min. Holding Force @ 0.001" (0.0254 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.001" (0.0254 mm) / Step (Un-energised) (oz)
Min. Holding Force @ 0.002" (0.0508 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.002" (0.0508 mm) / Step (Un-energised) (oz)
Min. Holding Force (Unenergized) @ 0.003" (0.0762 mm) / Step (Un-energized){%|%}N
Min. Holding Force (Unenergized) @ 0.003" (0.0762 mm) / Step (Un-energized){%|%}oz
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (oz)
Min. Holding Force @ rated current @ .0005" (0.0127 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .0005" (0.0127 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .001" (0.0254 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .001" (0.0254 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .002" (0.058 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .002" (0.058 mm) / Step{%|%)oz
Min. Holding Force @ rated current @ .003" (0.0762 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .003" (0.0762 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .004" (0.1016 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .004" (0.1016 mm) / Step{%|%}oz
Number of lines available
Output signal
Supply Current - maxium (mA)
Supply Current - stand-by (μA)
Supply Current - typical (mA)
Supply Voltage (V)
Direction of rotation ( = / ≠)
Max. Recommended Input Speed (rpm)
Number of gear stages
Number of lines available
Type of encoder
Linear Travel Accuracy
Input Power (W)
Stepper Type
Document Technology Document Type Language File Type
22ECT60 Specifications Sheet Brushless DC Specification Page  
22ECT60 Ultra EC Drawing Brushless DC DXF Drawing  
22ECT 60 3D Drawing Brushless DC 3D  
22ECT Ultra EC (brochure) Brushless DC Other  
Ultra EC Brochure (brochure) Brushless DC Literature  
Miniature Motors for Automated Solutions (brochure) Literature