Zhejiang Laifual Drive Co., Ltd
Zhejiang Laifual Drive Co., Ltd
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t series robot joint actuator lfrob 1

T series Robot joint actuator LFRob

18mm super large middle hole.

Quickly build a robot, which is simpler and faster. Saving labor and time in the selection, design, procurement, and assembly of hundreds of electronic components.

8 core components

Robot joint model: LFRob70H80I-BS-18E

Model NoLFRob70LFRob80LFRob90LFRob110LFRob142
Start-stop peak torque(Nm)18/2323/3028/3634/4443/5654/7056/7374/9682/10798/127137/178157/204167/217216/281304/395333/433353/459
Rated torque(Nm)5.4/77.8/107.8/1016/2122/2924/3125/3334/4440/5239/5163/8267/8767/8776/99118/153137/178137/178
Instantaneous allowable maximum torque(Nm)35/4647/6154/7070/9187/113110/14398/127127/165147/191186/242255/332284/369304/395382/497568/738647/841686/892
Output peak speed(RPM)6037.5306037.5306037.53040252016.740252016.7
Motor watt(W)1002004007501000
Rated current(A)3.36.9112026
Peak current(A)1116.8294056
Output encoder resolution19Bit
Repeat/absolute positioning accuracy±10/45 arcsecond
Communication busEtherCAT/CANopen
Outer diameter x length x through hole (mm)70x81x1880x95x1890x102x18110x127x18142x137x18
Weight (kg)0.981.
Interface designFully differential interface design, strong anti-interference ability, two sets of loose plugs, can be connected in series.
BrakeFriction damping brake
IP ratingIP54
Note: The two values of the torque parameter in this table with "/" are the corresponding values when equipped with medium rigidity/high rigidity joints.

  • 1
    Can you supply products with large quantity?

    Yes, we can. Our annual production ability is more than 200,000pcs.

  • 2
    Do You Have Professional Technology Team?

    Yes, we have more than 70 employees on the technical team. We can offer a professional technical solutions for customers' projects.

  • 3
    What's the General Delivery Time?

    For standard product, the delivery time normally around 2-3 weeks. For customized products, normally aound 1-2 months.

  • 4
    Do You Produce The Harmonic Gearbox By Yourself?

    Yes, we are top harmonic gearbox manuafacturer in China, the total factory is 30,000 square meters with over 400 employees, Laifual's R&D center is recognized as a "High-tech enterprise R&D center in China".

  • 5
    What's The Biggest Advantage Of Your Products?

    Our product series is very complete, and the quality of the products is stable. The most important is the highest cost-effective in China.

  • 6
    What is your terms of payment ?

    For order amount which is less than 1000USD, 100% in advance; more than 1000USD, 30% T/T in advance, balance before shippment.

  • 7
    What is your product warranty?

    1 year warranty after delivery or working time of 2000 hours on condition that it is used in normal assembly state and lubrication condition recorded in product content.

  • 8
    How about after sales service?

    Our sales team are online 24 hours a day to help you solve any problems.

  • 9
    Can You Offer OEM & ODM Services?

    Yes, we can offer OEM and ODM services according to customers requirements.


We can ship to virtually any address in the world.

We will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on your chosen shipping provider, shipping date estimates may appear on the shipping quotes page. Please also note that the shipping rates for many items we sell are weight-based. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Products in Stock:

Shipping within 24 hours.

Customize Products:

Shipping within 3-5 weeks after both parties confirm the drawings.


Warranty period:

The warranty period is the earlier time between 1 year after delivery or working time of 2000 hours on condition that it is used in normal assembly state and lubrication condition recorded in product content.

Warranty Scope:

As a harmonic drive company, Laifual Drive is responsible for the maintenance or replacement of the product when malfunction resulting from a manufacturing defect under the warranty period. However, the following situations are out of warranty scope.

  • Damage results from the unsuitable operation or illegal use by clients.

  • Damage results from modification or repair that is not carried out by our company.

  • Damage not caused by the product.

  • Damage results from natural disasters and the like but not the responsibility of our company.

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