Advertisement

Quick Links

ET
T h i n E l e c t r i c T u r n t a b l e
Hi g h- p re c i sio n m ul t i- p oin t po sit ioning
w i t h su p er io r ro t ary pe rfor manc e

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the ET20 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for THK ET20

  • Page 1 T h i n E l e c t r i c T u r n t a b l e Hi g h- p re c i sio n m ul t i- p oin t po sit ioning w i t h su p er io r ro t ary pe rfor manc e...
  • Page 2 Ample rotary functions only possible with an electric drive Consistent movement at any installation angle...
  • Page 3 Thin Electric Turntable Multi-point positioning, multi-rotation control (speed can also be adjusted) The combination of an electric drive with position control makes it possible to easily set three or more positions without stoppers. Capable of multiple movements, including clockwise and counterclockwise rotation control, speed control, and continuous rotation.
  • Page 4 TSC specifications Multi-point positioning Continuous rotation in one direction Stepper motor built in Rotation speed control Freely set at any angle Positioning repeatability: ±0.04 degrees Stepper Driver Controller TSC High-performance ET structure Motor Rotary table (330°, 360°) Cross-roller ring Hypoid gear...
  • Page 5 This helps equipment take up less space. ET20 ET35 Different varieties are available for purchase This product can come with a motor that pairs with the THK controller, a motor that you specify, or no motor installed.
  • Page 6: Mounting Methods

    Applications Basic Applications (Rotation) 330°/360° stroke rotation Continuous rotation in one direction Clockwise/counterclockwise rotation Diversified Applications Applied moment No speed fluctuations from varying loads Suspended installation Mounting Methods This product can be mounted from any surface, making it easy to install anywhere. Upper surface Lower surface Side surface...
  • Page 7: General Specifications

    General Specifications Two sizes are available: ET20 and ET35. The reduction ratio and motor size for each are given below. TSC specifications Reduction ratio 45: 1/45 ET20 Motor size: 40×40 Reduction ratio 20: 1/20 30: 1/30 ET35 Motor size: 35×35 Without motor: Stepper motor specifications...
  • Page 8: System Configuration

    TSC specifications vary based on the model. mechanical homing. in continuous rotation in one ET20: 20P direction. Please contact THK for ET35: 35P more information. System Configuration The system configuration is as follows when “360: Multirotation specifications” is selected.
  • Page 9 ET20 No symbol : 1/20 : 330° : Without motor : Stepper motor : None ET35 : 1/30 : Multi-rotation specifications : Servo motor : Sensor : With motor (THK will purchase : 1/45 and mount the motor you specify)
  • Page 10: Selection Information

    TSC specifications in the stroke. continuous rotation in one 330: No Symbol direction. Please contact 360: U THK for more information. 360° stroke (multi-rotation) uses a homing sensor (1 m cable). Selection Information Controller Specification Control device Motor size 20×20...
  • Page 11: Compatible Motors

    ET20 Angular Velocity versus Permissible Moment of Inertia Angular Velocity versus Output Torque 0.007 0.40 0.35 0.0057 0.006 0.30 0.30 0.005 0.25 0.004 0.20 0.003 Ambient temperature: 10°C or more 0.15 Ambient temperature: 10°C or more 0.0027 Ambient temperature: Less than 10°C 0.002...
  • Page 12 ET20 Dimensions TSC Specifications Cable length: 332 mm 50 mm or more Elongated hole depth 2.5 +0.02 depth 2.5 4-3.4 through, 6-M2.5 depth 4 (13) 6 counterbore, depth 3.5 PCD 35 (spaced every 60°) (80) Elongated hole depth 2.5 -0.005 -0.025...
  • Page 13 ET20 Dimensions Homing Specifications Home position sensor Home Home position position stopper stopper 360° specifications 330° specifications (D00) 330° specifications (R00) (5.5) Stopper details (D00) Stopper details (R00) Without Motor (Stepper Motor Specifications) (10.5) Note) The homing stopper is for detecting the home position.
  • Page 14: Controller Specifications

    T S C s p e c i f i c a t i o n s i n the stroke. continuous rotation in one 330: No Symbol direction. Please contact 360: U THK for more information. 360° stroke (multi-rotation) uses a homing sensor (1 m cable). Selection Information Controller Specifications...
  • Page 15 ET35 Angular Velocity versus Permissible Moment of Inertia Angular Velocity versus Output Torque 0.050 ET35–30 (Ambient temperature: 10°C or more) ET35–30 (Ambient temperature: 10°C or more) 0.045 0.042 ET35–30 (Ambient temperature: Less than 10°C) ET35–30 (Ambient temperature: Less than 10°C) 0.040 ET35–20 (Ambient temperature: 10°C or more) ET35–20 (Ambient temperature: 10°C or more)
  • Page 16 ET35 Dimensions TSC Specifications Elongated hole Cable length: 332 mm depth 3 50 mm or more 4- 4.5 through, (22) 4-M4 depth 7 8 counterbore, depth 9.5 (105) PCD 42 (spaced every 90°) +0.018 depth 4 +0.03 depth 3 Elongated hole depth 3 -0.005 -0.025 Elongated hole...
  • Page 17 ET35 Dimensions Homing Specifications Home position sensor Home Home position position stopper stopper 360° specifications 330° specifications (D00) 330° specifications (R00) (5.5) Stopper details (D00) Stopper details (R00) Without Motor (Stepper Motor Specifications) (12.5) (5.5) Reduction ratio (Between shafts) 1/20 1/30 41.3 Note) The homing stopper is for detecting the home...
  • Page 18: Selection Method

    Technical Materials Selection Method When selecting a rotary shaft, calculate the moment of inertia and load torque for the usage conditions and make a selection where the permissible moment of inertia and maximum output torque will not be exceeded. Refer to the formula below as a representative example and calculate the moment of inertia for the workpiece and mounting jigs you will be using.
  • Page 19 : Gravitational acceleration (m/s μ : Friction coefficient ET20: 0.020 : Rotary table radius ET20: 29 (mm) ET35: 0.017 ET25: 34 (mm) Confirm whether or not the calculated torque satisfies the requirements for the maximum output torque for the model.
  • Page 20 Technical Materials Angular Velocity versus Permissible Moment of Inertia ET20 ET35 0.050 0.007 ET35–30 (Ambient temperature: 10°C or more) 0.045 0.042 ET35–30 (Ambient temperature: Less than 10°C) 0.0057 0.006 0.040 ET35–20 (Ambient temperature: 10°C or more) 0.005 0.035 ET35–20 (Ambient temperature: Less than 10°C) 0.028...
  • Page 21: Simple Operation

    Three languages are supported: Japanese, is included with the TSC. English, and Chinese (Simplified) Note 3) When using a 10 m actuator https://tech.thk.com/t/?t=dstep cable, please insert a noise filter. Stepper Note 4) TSC for ET is supported from Version 1.31...
  • Page 22: Specifications

    There are conditions for using the product under TSC specifications in continuous rotation in one direction. Please contact THK for more information. Note) When the model number in ⑤ is ET20 or ET35, the product cannot be used to operate ES, EC, KRF, or other models.
  • Page 23 Pin Assignment by TSC Function Mode Signal name Function mode 0 Function mode 1 Function mode 2 Function mode 4 Function mode 5 number 64-position mode External input teaching 256-position mode Solenoid mode 1 Solenoid mode 2 PI 0 PI 0 PI 0 ST 0 ST 0...
  • Page 24: Dimensional Drawing

    24 V power F.G. – source EMG– F.G. Note 1) DC 24 V power source for input/output circuit should be prepared by the customer. Dimensional Drawing (127) 77.6 MANU AUTO R2.5 Note 3) Contact THK for details about dimensional drawings.
  • Page 25 ・Alarm (log display, log clear, alarm reset) ・Display language (Japanese, English, Chinese (Simplified)) Supported OS: Windows XP, Windows Vista, Windows 7, Windows 10 D-STEP can be downloaded for free from the THK Electric Actuator Site. User-friendly interface (https://tech.thk.com/t/?t=dstep) Note 4) TSC for ET is supported from Version 1.31 onwards.
  • Page 26 MEMO...
  • Page 27: Precautions On Use

    Storage · When storing the actuator, enclose it in a package designated by THK and store it in a horizontal orientation while avoiding high temperatures, low temperatures, and high humidity. · Avoid storing control devices in an environment with high/low temperatures or high humidity.
  • Page 28  Outward appearances and specifications are subject to change without notice for the purpose of improvement. Please consult with THK before using.  Although great care has been taken in the production of this catalog, THK will not take any responsibility for damages resulting from typographical errors or omissions.

This manual is also suitable for:

Et35

Table of Contents