M4000 High-performance DC Brush Servomotors

M4000 high-performance DC servo motor
M4000 Series DC brush servo motor

High-Performance DC Brush Servo Motors for Industrial and Military Applications

M4000, a 4-inch diameter DC brush servo motor, is a member of Mechatronics' family of high-performance servo motors. The M4000 series utilizes high-energy rare-earth magnets and is designed for tough industrial and military applications. It features a compact size, high power density, and delivers exceptional starting and continuous torque.  

The use of rare-earth permanent magnets allows the M4000 servo motors to be significantly smaller than motors with ceramic magnets, offering the same power output. This makes the M4000 an ideal solution for aftermarket field replacements across virtually all motor brands. For new applications, the M4000 offers superior torque-to-inertia and torque-to-weight ratios compared to ceramic or samarium-cobalt-based magnet designs. Low cogging is achieved through skewed laminations, ensuring smooth rotation at near-zero speeds.

Over the past 10 years, a significant number of M4000 servomotors have been successfully installed in various industries, including CNC machine tools, paper, plastic, radar and antenna systems, textile manufacturing, packaging, and military applications. 

Features & Benefits

  • 20-60 in-lb continuous stall torque
  • Lightweight, compact package
  • Precision low-speed operation
  • High torque-to-inertia and torque-to-weight ratios
  • Rugged industrial construction
  • Constant-pressure brush mechanisms improve brush and commutator life
  • Integrated brush holder enables an IP65 rating
  • Large shielded or sealed ball bearings

Available Options

  • Premium-performance tachometers (3% average-to-peak ripple)
  • Tachometer sensitivities from 1 to 30 VDC/1000 RPM
  • Optical encoders
  • Resolvers
  • Custom cables and connectors
  • Fail-safe brakes (spring loaded)
  • Gearboxes
  • Metric mounting dimensions
  • IP65 Sealing

For additional product details and technical information, please contact the factory directly.

M4000 Family DC Servomotors Performance Data

Motor Parameters Symbols Units M4100 M4200 M4300 M4400
A B A B C D A B C D A B C D
Horsepower HP Rated HP 1.21 0.80 1.37 1.37 0.94 1.50 1.74 1.74 1.21 2.01 2.55 2.01 1.61 2.55
Kilowatts kW Rated KW 0.9 0.6 1.02 1.02 0.7 1.12 1.3 1.3 0.9 1.5 1.9 1.5 1.2 1.9
Max Operating Speed N Max RPM 4500 2900 3500 2450 1400 4500 3000 2400 1500 4000 2700 2000 1500 3200
Cont. Torque (stall) TC lb-ft 1.84 1.84 3.46 3.46 3.46 3.46 5.09 5.09 5.09 5.09 6.63 6.63 6.63 6.63
@ 40°C amb N-m 2.5 2.5 4.7 4.7 4.7 4.7 6.9 6.9 6.9 6.9 9 9 9 9
Current @ cont. torque IC amps 10 6.3 15.5 10.7 6.1 19.8 19 14.9 9.6 26.5 21.7 16.3 13 26.1
Peak Torque TP lb-ft 5.53 5.53 10.39 10.39 10.39 10.39 15.26 15.26 15.26 15.26 19.90 19.90 19.90 19.90
N-m 7.5 7.5 14.1 14.1 14.1 14.1 20.7 20.7 20.7 20.7 27 27 27 27
Current @ Peak torque IP amps 30 18.9 46.5 32.1 18.3 59.4 57 44.7 28.8 79.5 65.1 48.9 39 78.3
Max Terminal Voltage Vmax Volts 120 120 120 120 120 120 120 120 120 120 120 120 120 120
Torque Sensitivity ± 10% KT lb-ft/amp 0.18 0.27 0.22 0.32 0.55 0.18 0.29 0.35 0.59 0.44 0.31 0.41 0.52 0.26
N-m/amp 0.25 0.37 0.3 0.44 0.74 0.25 0.4 0.48 0.8 0.6 0.42 0.55 0.7 0.35
Back EMF Constant Kv V/K RPM 26.13 38.67 31.35 45.98 77.33 26.13 41.80 50.16 83.60 62.70 43.89 57.48 73.15 36.58
DC Resistance ± 12% RT ohms 0.69 1.65 0.37 0.71 2.31 0.23 0.26 0.44 1.25 0.158 0.26 0.43 0.69 0.19
Inductance ± 30 % LM MH 1.8 4.5 1.6 2.6 9.4 0.8 2 1.2 8 1 1.2 2.2 3.2 0.8
Rotor Inertia JM lb-ft-sec2 0.0007 7E-04 0.001 0.001 0.001 0.001 0.0015 0.0015 0.0015 0.0015 0.002 0.002 0.002 0.002
Kg-m2 0.0009 9E-04 0.00135 0.00135 0.0014 0.001 0.002 0.002 0.002 0.002 0.0027 0.003 0.0027 0.0027
Weight WT lb 14.3 14.3 17.4 17.4 17.4 17.4 22.6 22.6 22.6 22.6 28 28 28 28
Kg 6.49 6.49 7.89 7.89 7.89 7.89 10.25 10.25 10.25 10.25 12.70 12.70 12.70 12.70
Tachometer Parameter 3% ripple pp at 1000 RPM. 2.6k Min load resistance
Voltage Sensitivity ± 10% KG RPM 3,7,15,19V avaialble 3,7,15,19V avaialble 3,7,15,19V avaialble 3,7,15,19V avaialble



 

 

 

 

Description of servomotor Type
4100 4200 4300 4400
Servomotor 5.90 6.90 7.90 9.50
Servomotor with tachometer 6.80 7.75 8.90 10.50
Servomotor with encoder 6.80 7.75 8.90 10.50
Servomotor with tachometer & encoder 8.25 9.18 10.30 12.00

 

For additional product details and technical information, please contact the factory directly.