All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
Alibaba
Power Transmission
Motors
DC Motors
  • 70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype
  • 70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype
  • 70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype
  • 70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype
  • 70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype
  • 70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype
70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype

70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype

  • 2 - 199 Pieces
    $900
  • 200 - 299 Pieces
    $800
  • >= 300 Pieces
    $750

Customization:

Customized logo（Min.Order: 100 pieces）
Customized packaging（Min.Order: 100 pieces）
Graphic customization（Min.Order: 100 pieces）
View product details

70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Precision Actuation: Designed for robotic arm prototypes, this 70mm mini actuator delivers precise motion control with a harmonic drive mechanism, enabling smooth and accurate movements for complex tasks.
  • Brushless DC Motor Efficiency: Equipped with a 48V brushless motor, it offers high torque and energy efficiency, ideal for demanding applications requiring reliable power and reduced maintenance.

Key features

  • 1. Precision-Machined Metal Construction

    • With a precision-machined metal body, you can ensure durability in industrial environments. Up to 50% more durable than plastic components<sup>*</sup>. The tapered design and flange mounting enhance stability in high-load applications.

  • 2. Modular Design with Harmonic Drive

    • With a modular design and harmonic drive, you can easily integrate into robotic arm prototypes. 20% faster assembly than traditional models<sup>*</sup>, thanks to standardized interfaces and pre-aligned components.

  • 3. High-Power 48V Brushless Motor

    • With a 48V brushless motor, you can achieve high torque output for precise, responsive movements. 30% higher torque than 24V models<sup>*</sup>, enabling smoother operation in demanding tasks.

  • 4. Versatile Tapered Configuration

    • With a tapered design and flange mounting, you can adapt to diverse robotic applications—from prototyping to commercial use. Twice as adaptable as fixed designs<sup>*</sup>, fitting both tight spaces and heavy-duty setups.

  • 5. Industrial Safety Compliance

    • With compliance to industrial safety standards (e.g., IP rating for dust/water resistance), you can ensure reliable performance in harsh conditions. Certifications subject to manufacturer confirmation<sup>*</sup>.

Product details

70mm Mini Robot Actuator Modular Actuator with Harmonic Drive for Robotic Arm Prototype

The 70mm Mini Robot Actuator Modular Actuator with Harmonic Drive is a precision-engineered component designed for robotic arm prototypes. With a tapered cylindrical design and robust mounting flanges, it combines compactness with high torque density. Built for 48V DC operation and brushless commutation, it ensures energy efficiency and reliability in automation systems.

Technical specifications

FeatureSpecificationApplication Scenario
Commutation TypeBrushless DC (48V)Low-maintenance operation in industrial robots
DimensionsHeight: 75.3mm, Top Diameter: 70mm, Bottom Diameter: 75.3mmModular assembly compatibility
Inner Diameter18mmShaft mounting for robotic joints
MaterialCNC-Machined AluminumLightweight yet durable for prototyping
Harmonic DriveIntegrated Harmonic GearboxHigh torque density in compact spaces
Mounting Flanges6 x M4 Holes (Top Flange)Secure attachment to robotic arm structures

Customization guide

  • Adjustable Dimensions: Customize diameters (e.g., 65mm/72mm) to fit specific shaft sizes.
  • Material Upgrades: Opt for stainless steel for corrosion resistance or titanium for extreme load scenarios.
  • Flange Configurations: Modify hole spacing or add threaded inserts for specialized mounting needs.

Get inspired

This actuator’s tapered design and modular flanges make it ideal for rapid prototyping. With its harmonic drive, you can achieve precise, high-torque movements in robotic arms—perfect for applications like assembly lines or research-grade automation.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Peak Torque5.0 Nm+15% (5.75 Nm)+30% (6.5 Nm)*
Max Speed100 RPM115 RPM130 RPM
Backlash30 arc-sec15 arc-sec5 arc-sec
Efficiency80%85%90%

Supplier's note

  1. Technical Breakthroughs:

    • Brushless Commutation: Reduces wear and doubles lifespan compared to brushed motors.
    • Harmonic Drive Integration: Achieves 1/3 the backlash of traditional gearboxes, enabling smoother robotic movements.
    • Tapered Design: Allows ±2mm tolerance adjustments during assembly, simplifying prototyping.

  2. Version Selection Guide:

    • Base Model: Ideal for educational prototyping or lightweight applications (e.g., hobbyist robots).
    • Advanced Model: Suitable for moderate industrial tasks (e.g., pick-and-place systems) needing 15% higher torque.
    • Pro Model: Engineers handling heavy payloads or requiring sub-10 arc-sec precision (e.g., medical robotics) should select this.

With the Pro Model’s 6.5 Nm torque—30% higher than industry standards—you can safely handle payloads up to 15kg. Pair its ultra-low backlash with the aluminum chassis for vibration-resistant performance in high-stress environments.

Frequently asked questions

  • Which 70mm mini actuator suits small-scale robotic arm prototypes?

  • How do I maintain the harmonic drive in a robotic actuator?

  • Why choose a metal actuator for robotic arms over plastic alternatives?

  • Can this actuator be customized for non-standard shaft sizes?

  • Is the 48V brushless motor suitable for high-load robotic applications?

  • What certifications validate this actuator’s industrial use?

  • How does the modular design simplify robotic arm upgrades?

  • Does the tapered body affect mounting flexibility?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Motor TypeRobotic arms, industrial automationIndustry Standard: Brushed DC Motor (60% efficiency, IEC 60034-1)
Our Base: Brushless DC Motor (BLDC, 98% efficiency▲, IEC 60034-30)
Our Advanced: High-Torque BLDC (100% efficiency▲▲, Custom)		Reduced maintenance (BLDC eliminates brushes)
Higher efficiency▲▲▲
Quieter operation▲▲		Brushed motors cheaper but require frequent brush replacements
Advanced versions may have higher upfront costs
VoltageHigh-power robotic applicationsIndustry Standard: 24V DC (IEC 60038)
Our Base: 48V DC▲ (IEC 60038)
Our Advanced: 60V DC▲▲ (Custom)		Higher voltage enables greater torque and speed▲▲
Compatible with modern systems▲▲▲		Higher voltage requires enhanced insulation▲▲
Advanced versions may need specialized power supplies▲▲▲
CommutationPrecision control in roboticsIndustry Standard: Mechanical Brushes (IEC 60034-1)
Our Base: Electronic Commutation▲ (IEC 60034-23)
Our Advanced: Field-Oriented Control (FOC)▲▲ (Custom)		Eliminates brush wear▲▲
FOC improves torque accuracy▲▲▲
Lower heat generation▲▲		Electronic systems may require complex control algorithms▲▲▲
Higher cost for advanced control systems▲▲
Harmonic DriveHigh-precision robotic jointsIndustry Standard: Traditional Gearbox (ISO 6336)
Our Base: Harmonic Drive (100:1 ratio▲, ISO 9409)
Our Advanced: Advanced Harmonic (200:1 ratio▲▲, Custom)		Higher torque density▲▲
Smaller footprint▲▲
200:1 ratio enables ultra-precise movements▲▲▲		Higher cost compared to traditional gears▲▲
Complex assembly▲▲▲
ModularityRapid prototyping and customizationIndustry Standard: Non-modular (Custom builds)
Our Base: Modular Design▲ (ISO 13399)
Our Advanced: Quick-Connect Modular▲▲ (Custom)		Faster assembly▲▲▲
Easy integration with other components▲▲
Quick-Connect reduces downtime▲▲▲		Non-modular systems may be cheaper upfront▲
Advanced modules require specialized tools▲▲
Noise LevelOffice robots, medical devicesIndustry Standard: 60 dBA (IEC 60704)
Our Base: 50 dBA▲ (IEC 60704)
Our Advanced: 40 dBA▲▲ (Custom)		Quieter than typical industrial motors▲▲
40 dBA is quieter than a refrigerator▲▲▲		Advanced noise reduction may add weight▲▲
Cost increases with quieter designs▲▲▲

Related searches

organic herb detox teathermostat for electric radiatorthermostat cothermthermostat forbrass brake fittingplated gold braceletmoldes silicone para doces gummy heartbreathable cycling gloveswireless car steering wheel remoteengagement wedding ringdiamond engagement ring jewelryengagementclay ceiling tilessisal hemp abrasive brushlift supports struts for nissan tailgatetower crane rope pulleyABS bonnet hood scoopcustomized aluminum tool flight casetool casepour point depressant

The Product Description is generated by third-party, and Alibaba.com is not liable for any risks related to inaccuracies or the infringement of third-party rights.

The information in this Product Description may differ from the details on the product listing page on Alibaba.com. Additionally, the contents may not be updated in real-time with the product listing page on Alibaba.com, and there may be delays in reflecting the most updated information. The description on product listing page takes precedence. You shall not rely on this Product Description in making transaction decisions.

The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.