• SITO DRIVE HS-32-III strain wave drive reducer, top face with bolt circle and yellow seal ring
  • SITO DRIVE HS-32-III harmonic gear reducer in angled view showing central bore and mounting holes
  • Top-down view of circular reducer flange with yellow ring and evenly spaced mounting holes (RobotDoo)
  • Rear side view of reducer showing recessed hub and perimeter fasteners (RobotDoo watermark)
  • Side profile of compact round reducer housing showing body thickness and flange step (RobotDoo)
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SITO DRIVE

SITO DRIVE HS-32-III Strain Wave Drive Reducer (50/80/100/120) for Robot Joints, Arms & AGV

SITO DRIVE HS-32-III Strain Wave Drive Reducer (50/80/100/120) for Robot Joints, Arms & AGV

$341.00 USD
$341.00 USD
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Overview

SITO DRIVE HS-32-III is a strain wave drive reducer for compact, high-ratio motion transmission in robotic joints and automation mechanisms.

Manufacturer text: “MAKE EVERY TURN WORTHY OF TRUST”; “Strain wave drive reducer manufacturing expert”.

Manufacturer text (product line): Reducer Diameter: 11 mm - 147 mm; Reduction Ratio: 30 / 50 / 80 / 100 / 120; Rated Torque: 0.06-152 Nm.

Manufacturer text: “DEXTEROUS HAND SPECIAL REDUCER”; “Self-developed ultra-micro strain wave drive reducers”; “CS Mini-2.5”.

Manufacturer text: “SMALL TO THE EXTREME”; “Here is the world's smallest Strain wave drive reducer”; Reducer Diameter: 11 mm.

Manufacturer text: “70% OF ROBOT CORE COMPONENTS”. Whether it is an industrial-grade robotic arm or a bionic robot, harmonic reducers are crucial core components that function as energy amplifiers. The manufacturer states over 20 years of experience in research and manufacturing of precision harmonic reducers and that it supplies numerous robot companies.

Manufacturer text: “HIGHER INDUSTRY STANDARDS”. The manufacturer states it focuses on customer needs during the manufacturing process and aims for longer product lifespan.

Applications

  • Humanoid robots
  • Robotic arms
  • Exoskeletons
  • Quadruped robots
  • AGV vehicles
  • ARU robots

Key Features

  • Model: HS-32-III
  • Transmission ratios: 50, 80, 100, 120
  • Backlash options by ratio: 620 arcsec (50/80) and 610 arcsec (100/120)
  • Maximum allowable input speed: 4800 rpm
  • Allowable average speed: 3500 rpm

Specifications

Parameter 50 80 100 120
Model HS-32-III HS-32-III HS-32-III HS-32-III
Transmission Ratio 50 80 100 120
Rated Torque at 2000 r/min input 76 Nm 118 Nm 137 Nm 137 Nm
Peak Torque allowed during start/stop 216 Nm 304 Nm 333 Nm 353 Nm
Maximum allowable average load torque 108 Nm 167 Nm 216 Nm 216 Nm
Instantaneous Maximum Torque 382 Nm 568 Nm 647 Nm 686 Nm
Maximum allowable input speed 4800 rpm 4800 rpm 4800 rpm 4800 rpm
Allowable average speed 3500 rpm 3500 rpm 3500 rpm 3500 rpm
Moment of inertia 1.69 (x10^-4 kg*m^2) 1.69 (x10^-4 kg*m^2) 1.69 (x10^-4 kg*m^2) 1.69 (x10^-4 kg*m^2)
Backlash <=20 arcsec <=20 arcsec <=10 arcsec <=10 arcsec

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Details

SITO DRIVE HS-32-III strain wave drive reducer product line visual with multiple reducer sizes and ratios

SITO DRIVE builds compact strain wave drive reducers designed for high-ratio, high-precision motion in robotics and automation.

Robotic hand concept graphic promoting SITO DRIVE dexterous-hand special reducer line (CS Mini-2.5)Ultra-mini strain wave drive reducer size comparison highlighting an 11 mm diameter unit alongside a coin

Ultra-mini reducer options support space-constrained designs such as dexterous hands, small joints, and compact actuators.

Manufacturer graphic stating harmonic reducers as robot core components, with robotic arm illustration and textHigher industry standards banner with close-ups of reducer assembly, precision inspection, and machined components

Manufacturing emphasis on precision processes helps support consistent performance and longer service life in demanding duty cycles.