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Hi-Torq Brushless Direct-Drive Servomotor
The Hi-Torq series of brushless servomotors pack a remarkable amount of torque into a low profile package, making them perfect for your direct-drive applications. These motors, when driven by the same FlexMax drives you use with the PacTorq and PowerTec series motors, provide a superior alternative to many conventional gearbox and belt solutions to your motion control applications.

Where do I use Hi-Torq?
    Use Hi-Torq motors ...
    • ... for gearless uses where zero backlash is required.
    • ... on machines where very high torque is needed in a small space.
    • ... where maintenance is a problem (built into machinery).
    • ... when extremely smooth low speed torque is needed.
    • ... where shaft mounting, low profile drive means is necessary.

Features & Benefits
  • Low overall weight compared to motor/gear combinations
  • Extremely high accuracy with drives capable of using the sinusoidal encoder
  • Completely enclosed feedback devices
  • Conventional servo connectorized power and feedback wiring
  • Low compliance bolted shaft-mount provisions
  • Input shaft can be keyed if desired
  • Hall effect commutation output built in, plus...

      • ... sinusoidal encoder or optional resolver (E340 series)
      ... digital encoder or optional resolver (E430 series)

Characteristics
    Basic E340 Frame Characteristics (TENV)
    (E342TVY Data Shown)
    • Rated Stall Torque (Cont): 264 lb-ft
    • Continuous HP (rated at 220 rpm): 8.7 hp
    • Continuous Torque , rated speed: 207 lb-ft
    • Weight: 265 lbs
    • Rated Stall Current (Cont): 28.7 amps
    • Peak Torque accel rate: 15,280 rad/sec2
    • Rated Current, Continuous: 22.5 amps
    • Inertia: 5.65 lb-ft2
    TEAO Option
    • Increases continuous torque output to 326 lb-ft (stall)
    • RMS continuous torque at rated speed increases to 307 lb-ft

    Basic E430 Frame Characteristics (TENV)
    (E432 Data Shown)
    • Rated Stall Torque (Cont): 368 lb-ft
    • Continuous HP (rated at 220 rpm): 15.4 hp
    • Continuous Torque , rated speed: 367 lb-ft
    • Weight: 350 lbs
    • Rated Stall Current (Cont): 39.6 amps
    • Peak Torque accel rate: 5150 rad/sec2
    • Rated Current, Continuous: 39.1 amps
    • Inertia: 24.0 lb-ft2
    TEAO Option
    • Increases continuous torque output to 552 lb-ft (stall)
    • RMS continuous torque at rated speed increases to 550 lb-ft
    TEWC Option
    • Increases continuous torque output to 700 lb-ft (stall)
    • RMS continuous torque at rated speed increases to 700 lb-ft

Applications
    Just the thing for:
    • Direct Drive Rolls, just hang on the shaft
    • Rotary Knives/Flying Shears, no backlash
    • Direct Drive Extruders, no gearbox
    • Direct Drive servos, no gears or compliance
    • Metering pump drives, accurate low speed
    • High torque, low speed dynamometers
    • Wheel drives for blow molding machines
    • Joint-mounted drives for robots
  • Where used?
    •
  • Features & Benefits
    •
  • Characteristics
    •
  • Applications
    •
  • Perf. Summary
    •
  • Datasheets

    •     - E340 Frame
        - E430 Frame
  • Outline Drawings

    •     - E340 Frame
        - E430 Frame
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    Summary of Performance
    by Frame Size

    Parameter Frame Size
    E341 E342 E344
    Continuous Stall Torque, TENV 145 lb-ft 264 lb-ft 475 lb-ft
    Continuous Stall Torque, TEAO 179 lb-ft 326 lb-ft 587 lb-ft
    Continuous Torque @ 220 rpm, TENV 114 lb-ft 207 lb-ft 373 lb-ft
    Continuous Torque @ 220 rpm, TEAO 169 lb-ft 307 lb-ft 553 lb-ft
    Continuous Rated HP, TENV 4.8 hp 8.7 hp 15.7 hp
    Continuous Rated HP, TEAO 5.9 hp 10.7 hp 19.3 hp
    Peak Torque, TENV and TEAO 1342 lb-ft 2685 lb-ft 5370 lb-ft


    Parameter Frame Size
    ES342 E342 EL342
    Continuous Stall Torque, TENV 145 lb-ft 264 lb-ft 475 lb-ft
    Continuous Stall Torque, TEAO 179 lb-ft 326 lb-ft 587 lb-ft
    Continuous Torque @ 220 rpm, TENV 114 lb-ft 207 lb-ft 373 lb-ft
    Continuous Torque @ 220 rpm, TEAO 169 lb-ft 307 lb-ft 553 lb-ft
    Continuous Rated HP, TENV 4.8 hp 8.7 hp 15.7 hp
    Continuous Rated HP, TEAO 5.9 hp 10.7 hp 19.3 hp
    Peak Torque, TENV and TEAO 1342 lb-ft 2685 lb-ft 5370 lb-ft

    Hi-Torq Brushless DC Servomotor Datasheet
    English Dimensions (click here for metric dimensions)

    Frame:  E342TVY Enclosure:  TENV Winding letter:  A Connection:  1Y

    Parameter Notes Symbol Units Value
    Continuous stall torque 1 Tcs lb.ft. 264.7
    Peak torque, theoretical   Tpk lb.ft. 2685.0
    Rotor inertia   Jm lb.ft.sec.2 0.1757
    Theoretical acceleration 2 a radians/sec.2 15280
    Static friction torque   Tf lb.ft. 2.62
    Viscous damping coefficient 4 Kdv lb.ft./krpm 46.60
    Thermal resistance   Rth °C/watt 0.092
    Thermal time constant   tth minutes 70.0
    Motor constant 4 Km lb.ft./watt1/2 10.68
    Weight   W lb. 265
    Maximum safe speed   wmax RPM 1000
    Rotor poles   P   32
    Winding data:
    Insulation class       H
    Stator phases   Ø   3
    Voltage constant 3, 4 Kepeak Vpkt-t/KRPM 1188.0
    RMS voltage constant 4, 5 Kerms Vrmst-t/KRPM 840.0
    Torque constant 4, 6 Ktpeak lb.ft./ampere pk 7.25
    RMS torque constant 4, 6 Ktrms lb.ft./ampere rms 10.25
    Resistance 4, 5 Rtt ohms 0.600
    Inductance 5 Ltt millihenries 11.949
    Synchronous Inductance 5 Lttsync millihenries 15.593
    Electrical time constant 4, 5 te milliseconds 19.9
    Mechanical time constant 4 tm milliseconds 1.14
    Continuous stall current 1, 6 Ics amperes rms 28.7
    Current at peak torque 6, 7 Ipk amperes rms 262.0
    Rated base speed 8 wrated RPM 220
    Power at base speed 8   HP 8.67

    Thermal sensor:  normally closed pilot duty
    Feedback specifications:  halls plus 1200 ppr sinusoidal encoder
    Notes: (1) 40°C ambient temperature (5) Terminal to terminal
    (2) Angular accel at pk torque, motor only (6) Based on RMS (sine wave) current
    (3) Volts peak, terminal to terminal (7) 140°C winding temperature
    (4) 25°C ambient (8) 320 VDC

    Hi-Torq Brushless DC Servomotor Datasheet
    Metric Dimensions (click here for English dimensions)

    Frame:  E342TVY Enclosure:  TENV Winding letter:  A Connection:  1Y

    Parameter Notes Symbol Units Value
    Continuous stall torque 1 Tcs Nm 358.9
    Peak torque, theoretical   Tpk Nm 3640.7
    Rotor inertia   Jm kg m2 0.2382
    Theoretical acceleration 2 a radians/sec.2 15280
    Static friction torque   Tf Nm 3.55
    Viscous damping coefficient 4 Kdv Nm/krpm 63.19
    Thermal resistance   Rth °C/watt 0.092
    Thermal time constant   tth minutes 70.0
    Motor constant 4 Km Nm/watt1/2 14.48
    Weight   W kg 120.45
    Maximum safe speed   wmax RPM 1000
    Rotor poles   P   32
    Winding data:
    Insulation class       H
    Stator phases   Ø   3
    Voltage constant 3, 4 Kepeak Vpkt-t/KRPM 1188.0
    RMS voltage constant 4, 5 Kerms Vrmst-t/KRPM 840.0
    Torque constant 4, 6 Ktpeak Nm/ampere pk 9.82
    RMS torque constant 4, 6 Ktrms Nm/ampere rms 13.90
    Resistance 4, 5 Rtt ohms 0.600
    Inductance 5 Ltt millihenries 11.949
    Synchronous Inductance 5 Lttsync millihenries 15.593
    Electrical time constant 4, 5 te milliseconds 19.9
    Mechanical time constant 4 tm milliseconds 1.14
    Continuous stall current 1, 6 Ics amperes rms 28.7
    Current at peak torque 6, 7 Ipk amperes rms 262.0
    Rated base speed 8 wrated RPM 220
    Power at base speed 8   kW 6.5

    Thermal sensor:  normally closed pilot duty
    Feedback specifications:  halls plus 1200 ppr sinusoidal encoder
    Notes: (1) 40°C ambient temperature (5) Terminal to terminal
    (2) Angular accel at pk torque, motor only (6) Based on RMS (sine wave) current
    (3) Volts peak, terminal to terminal (7) 140°C winding temperature
    (4) 25°C ambient (8) 320 VDC

    Hi-Torq Brushless DC Servomotor Datasheet
    English Dimensions (click here for metric dimensions)

    Frame:  E432Y Enclosure:  TENV Winding letter:  A Connection:  1Y

    Parameter Notes Symbol Units Value
    Continuous stall torque 1 Tcs lb.ft. 368.0
    Peak torque, theoretical   Tpk lb.ft. 3837
    Rotor inertia   Jm lb.ft.sec.2 0.745
    Theoretical acceleration 2 a radians/sec.2 5150
    Static friction torque   Tf lb.ft. 4.00
    Viscous damping coefficient 4 Kdv lb.ft./krpm 81.10
    Thermal resistance   Rth °C/watt 0.0787
    Thermal time constant   tth minutes 180.0
    Motor constant 4 Km lb.ft./watt1/2 16.69
    Weight   W lb. 350
    Maximum safe speed   wmax RPM 1000
    Rotor poles   P   48
    Winding data:
    Insulation class       H
    Stator phases   Ø   3
    Voltage constant 3, 4 Kepeak Vpkt-t/KRPM 1201.0
    RMS voltage constant 4, 5 Kerms Vrmst-t/KRPM 849.3
    Torque constant 4, 6 Ktpeak lb.ft./ampere pk 7.31
    RMS torque constant 4, 6 Ktrms lb.ft./ampere rms 10.33
    Resistance 4, 5 Rtt ohms 0.266
    Inductance 5 Ltt millihenries 2.603
    Synchronous Inductance 5 Lttsync millihenries 3.192
    Electrical time constant 4, 5 te milliseconds 9.8
    Mechanical time constant 4 tm milliseconds 2.00
    Continuous stall current 1, 6 Ics amperes rms 39.6
    Current at peak torque 6, 7 Ipk amperes rms 371.4
    Rated base speed 8 wrated RPM 220
    Power at base speed 8   HP 15.4

    Thermal sensor:  normally closed pilot duty
    Feedback specifications:  geared encoder 1024 with commutation tracks
    Notes: (1) 40°C ambient temperature (5) Terminal to terminal
    (2) Angular accel at pk torque, motor only (6) Based on RMS (sine wave) current
    (3) Volts peak, terminal to terminal (7) 140°C winding temperature
    (4) 25°C ambient (8) 320 VDC

    Hi-Torq Brushless DC Servomotor Datasheet
    Metric Dimensions (click here for inch dimensions)

    Frame:  E432Y Enclosure:  TENV Winding letter:  A Connection:  1Y

    Parameter Notes Symbol Units Value
    Continuous stall torque 1 Tcs Nm 499.0
    Peak torque, theoretical   Tpk Nm 5203
    Rotor inertia   Jm kg m2 1.010
    Theoretical acceleration 2 a radians/sec.2 5150
    Static friction torque   Tf Nm 5.42
    Viscous damping coefficient 4 Kdv Nm/krpm 110.0
    Thermal resistance   Rth °C/watt 0.0787
    Thermal time constant   tth minutes 180.0
    Motor constant 4 Km Nm/watt1/2 22.63
    Weight   W kg 158.8
    Maximum safe speed   wmax RPM 1000
    Rotor poles   P   48
    Winding data:
    Insulation class       H
    Stator phases   Ø   3
    Voltage constant 3, 4 Kepeak Vpkt-t/KRPM 1201.0
    RMS voltage constant 4, 5 Kerms Vrmst-t/KRPM 849.3
    Torque constant 4, 6 Ktpeak Nm/ampere pk 9.91
    RMS torque constant 4, 6 Ktrms Nm/ampere rms 14.01
    Resistance 4, 5 Rtt ohms 0.266
    Inductance 5 Ltt millihenries 2.603
    Synchronous Inductance 5 Lttsync millihenries 3.192
    Electrical time constant 4, 5 te milliseconds 9.8
    Mechanical time constant 4 tm milliseconds 2.00
    Continuous stall current 1, 6 Ics amperes rms 39.6
    Current at peak torque 6, 7 Ipk amperes rms 371.4
    Rated base speed 8 wrated RPM 220
    Power at base speed 8   kW 11.5

    Thermal sensor:  normally closed pilot duty
    Feedback specifications:  geared encoder 1024 with commutation tracks
    Notes: (1) 40°C ambient temperature (5) Terminal to terminal
    (2) Angular accel at pk torque, motor only (6) Based on RMS (sine wave) current
    (3) Volts peak, terminal to terminal (7) 140°C winding temperature
    (4) 25°C ambient (8) 320 VDC