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STHEL7 Frame

The STH utilizes Nidec DTC modular design concept by integrating a EVL 070 planetary gear reducer at the input section. This allows the STH to achieve reduction ratios from 12:1 to 400:1. Motor mounting is easy with our vast selection of mounting plates. The 85mm hollow shaft provides clearance for wiring, tubing or ball screws to be passed through to effectors, fillers or any other active machinery. Contact us if you need assistance upgrading from legacy mechanical camming devices or pneumatics.

Downloads

Selection Configurator

STH Series Catalog

Technical Data

STHEL7 Frame 3 Stage Specifications

Ratio *1UnitNote12:116:120:128:140:1
Nominal Torque[Nm]*24358848561
Maximum Acceleration Torque[Nm]–86115152170122
Emergency Stop Torque[Nm]–180234240240204
Nominal Input Speed[rpm]–30003000300030003000
Maximum Input Speed[rpm]–60006000600060006000
Maximum Axial Load[N]–40004000400040004000
Maximum Radial Load[N]–50005000500050005000
Maximum Tilting Moment Load[Nm]–200200200200200
Maximum Surface Runout[mm]–0.0700.0700.0700.0700.070
Moment of Inertia (≤ Ø8)[kgcm2]*31.2800.8110.5970.4120.314
Moment of Inertia (≤ Ø14)[kgcm2]*31.3550.8860.6720.4870.389
Moment of Inertia (≤ Ø19)[kgcm2]*31.5441.0750.8620.6760.578
Efficiency[%]–8484888888
Maximum Torsional Backlash[Arc-min]–≤ 3≤ 3≤ 3≤ 3≤ 3
Accuracy[Arc-sec]–±60±60±60±60±60
Torsional Stiffness[Nm/arc-min]–7.67.67.67.67.6
Noise Level[dB]–7272656565
Maximum Ambient Temperature[°C]–0-400-400-400-400-40
Permitted Housing Temperature[°C]–9090909090
Protection Class–*4IP54 (IP65)IP54 (IP65)IP54 (IP65)IP54 (IP65)IP54 (IP65)
Weight[kg]–8.08.08.08.08.0

STHEL7 4 Stage Specifications

Ratio *1UnitNote60:180:1100:1120:1140:1160:1200:1280:1400:1
Nominal Torque[Nm]*2618585618585858561
Maximum Acceleration Torque[Nm]–122170170122170170170170122
Emergency Stop Torque[Nm]–240240240240240240240240240
Nominal Input Speed[rpm]–300030003000300030003000300030003000
Maximum Input Speed[rpm]–600060006000600060006000600060006000
Maximum Axial Load[N]–400040004000400040004000400040004000
Maximum Radial Load[N]–500050005000500050005000500050005000
Maximum Tilting Moment Load[Nm]–200200200200200200200200200
Maximum Surface Runout[mm]–0.0700.0700.0700.0700.0700.0700.0700.0700.070
Moment of Inertia (≤ Ø8)[kgcm2]*30.1120.0930.0850.0720.0770.0660.0640.0630.062
Moment of Inertia (≤ Ø14)[kgcm2]*30.1570.1380.1290.1160.1220.1110.1080.1060.106
Moment of Inertia (≤ Ø19)[kgcm2]*3–––––––––
Efficiency[%]–848484848484848484
Maximum Torsional Backlash[Arc-min]–≤ 4≤ 4≤ 4≤ 4≤ 4≤ 4≤ 4≤ 4≤ 4
Accuracy[Arc-sec]–±60±60±60±60±60±60±60±60±60
Torsional Stiffness[Nm/arc-min]–7.67.67.67.67.67.67.67.67.6
Noise Level[dB]–656565656565656565
Maximum Ambient Temperature[°C]–0-400-400-400-400-400-400-400-400-40
Permitted Housing Temperature[°C]–909090909090909090
Protection Class–*4IP54 (IP65)IP54 (IP65)IP54 (IP65)IP54 (IP65)IP54 (IP65)IP54 (IP65)IP54 (IP65)IP54 (IP65)IP54 (IP65)
Weight[kg]–8.28.28.28.28.28.28.28.28.2
  1. Contact Nidec Drive Technology for special ratios
  2. At nominal input speed, service life is 20,000 hours
  3. Measured at input shaft
  4. IP65 (wash-down) is available as an option. Contact Nidec Drive Technology for more details and our food grade options
  5. L dimension varies depending on configuration

STHEL7 Frame 3 and 4 Stage Dimensions