harmonic drive rotary table factory

Harmonic Drive® rotary actuators are the easiest solution for your high precision motion control applications. Performance matched precision gearing, motors, and encoders are designed to provide a power dense, cost effective solution.

Gear Units are typically housed zero backlash Harmonic Drive® strain wave gears with a precision output bearing & flange. Offered in a variety of compact designs including hollow shaft configurations. A robust and easy-to-use gearhead/gearbox solution.

Zero backlash Harmonic Drive® gear component sets offer the ultimate in design flexibility and can be tightly integrated into your machine design. These are well suited for applications where high torque density is of paramount importance.

Zero backlash Harmonic Drive® and low backlash Harmonic Gearhead®Planetary Quick Connect® gearboxes easily mount to any servomotor to create a high precision actuator. Available in a wide range of gear ratios, sizes and output configurations.

Harmonic Drive Linear Actuators deliver both high force and outstanding positional accuracy. These actuators provide linear forces from 49N to 12,000N with sub-micron position resolution.

We offer a complete range of digital servo drives for brush or brushless actuators. Our drives support many command protocols including analog, stepper, CanOpen, DeviceNet and EtherCat.

Zhejiang Laifual Drive Co., Ltd is a national high-tech enterprise, mainly engaged in research and manufacture of high-precision harmonic reducers and planetary gear reducers. Total factory is 30,000 square meters. About 300 employees, including around 30 R&D Personnel, with more than 10 years experience in research and development.

We"re well-known as one of the leading hollow rotary tables manufacturers and suppliers in China for 10 years. Our factory offers high quality hollow rotary tables made in China with competitive price. Welcome to contact us for wholesale service. Semi Closed Linear Modules, Harmonic Drive Gears, Screw Driven Linear Modules

Integration: Highly integrated, with a built-in ultra-high-precision, high-rigidity special strain wave gear harmonic speed reducer for machine tools (PCT international patent product), and a high-power density, low cogging torque power support giant motor.

When we think about actuators, we typically think about linear actuators — devices that move loads in a straight line, driven by a screw, belt, or other mechanical power transmission device. But there also exists a class of actuators that provide rotary motion for positioning a load radially around a fixed axis. While these rotary actuators can be driven by pneumatic, hydraulic, or electromechanical power, we’ll focus here on electromechanical versions.

Electromechanical rotary actuators are designed to move loads in angular increments with very high positioning accuracy and repeatability. Although all rotary actuators can provide up to 360 degrees of rotation, many designs can provide continuous rotation through multiples of 360 degrees.

There are two main design principles for rotary actuators: those that incorporate a mechanical drivetrain — such as a belt or gear — to transfer motion from the motor output to a rotating table, and those in which the motor is directly coupled to the rotating table. In either case, an absolute or incremental rotary encoder is often integrated into the actuator assembly, and brakes are typically offered as standard options. To support the rotating load, most designs use either a rotary ball bearing or a radial (ring-style) crossed-roller bearing.

The first type — those that use a mechanical drivetrain — most often use a belt, worm gear, or pinion gear coupled to a servo or stepper motor. In the case of belt-driven versions, gearing (torque multiplication and speed reduction) can be achieved through additional gear components or by using different diameters for the motor and table pulleys.

Direct-drive rotary actuators use a style of rotary servo motor that has a flat construction principle, known as a torque motor, or a pancake motor. The actuator’s table top, where the load is attached, is directly mounted to the motor, so components that would introduce compliance and backlash — such as couplings, screws, or belts — are eliminated. This gives direct-drive versions very high positioning accuracy, repeatability, and stiffness.

Rotary actuators — particularly direct-drive versions — are often used as the rotary axis in multi-axis systems such as Cartesian and gantry robots. And because electrical rotary actuators provide tight control over speed and positioning accuracy, they’re often chosen over pneumatic and hydraulic designs in printing, machining, assembly, and inspection applications.

Another permutation of the rotary actuator is the rotary indexing table. In general, rotary actuators are used for moving loads at any angle, while rotary indexing tables are designed to move loads to pre-set, fixed positions, where the load dwells for some time and then moves to the next position. For example, an indexing table would be used for a part that required a machining operation to be performed around its circumference at 90 degree intervals.

As in the linear world, in the world of rotary motion, a distinction is often made between rotary actuators and a rotary stages. Rotary stages are commonly used in applications that require a very high flatness of travel during rotation — in other words, there should be no (or very little) “tilt” or “wobble” as the stage rotates. This is typically achieved by using highly-machined base and table structures with stringent requirements for flatness, along with high-precision radial bearings or crossed roller bearings. However, the distinction between rotary actuators, rotary stages, and even rotary tables is not strictly followed, so it’s not uncommon to see these terms used interchangeably.

Harmonic Drive LLC engineers and manufactures precision Harmonic Drive® servo actuators, gearheads and gear component sets. They work with industry-leading customers and companies of all sizes to provide both standard product and custom-engineered servo actuators, gearheads and gear components. Harmonic Drive LLC provides high precision, high performance solutions to meet customer’s mission critical application requirements.The majority of the products sold by HDLLC are manufactured in the United States. Affiliated companies in, Japan (Harmonic Drive Systems, Inc.) and Germany (Harmonic Drive AG) provide additional manufacturing capabilities.

I have tested rotary drives with both gear reducers and belt reducers. And while the gear reducers had sufficient holding torque the backlash was not acceptable. The belt driven reducers had very little backlash, but has very little holding torque.

The base plate on the harmonic drive does fit a little too tight for my tastes. You have to use the mounting bolts to pull it into place, and use a hammer to tap it back off. All my chucks have the same issue when mounted on this harmonic drive.

I plan on using the drive to mill four sides of a piece of square stock, and on my plasma cutter to cut features on both sides of a piece of steel angle.

I paid a little more for this drive ($150) as the seller was located in the states and had them in stock. I would have preferred a Sanou K12-100, but there was about a month lead time for them to arrive from China.

The drive is a little rough as the chuck key can be a little stiff as the jaws are tightened. It is loosening with use though, and It fits the harmonic drive. (like the others a little tight)

Is this $430 harmonic drive as good as a $2000 harmonic drive? No it is not. But I would not be willing to put a $2000 drive near my plasma torch. Once I get the drive connected to one of my CNC machines, I will run some repeatability and backlash tests.

The drive does exceed my expectations. I like that the drive has a generic 4” back plate with both 3 and 4 mounting holes. It is going to be fun trying out some new operations that I was not able to perform until now.

Harmonic Drive is a strain wave gear which can improve certain characteristics compared to traditional gearing systems. Harmonic Drive is trademarked by the Harmonic Drive company. The strain wave gear was invented in 1957 by C.W. Musser.

Based on the great features of harmonic drive, we developed this 4th axis set including 4", 6" and 8" units. The unit body is made of casted iron HT250, and the rotary table is made of harden C45 steel. The rotary table is set on a P5 class precision crossed roller bearing which only can be seen on high level 4/5 axis sets.

The harmonic drive is directly driven by closed-loop stepper motor system to prevent loosing steps. It can make the rotary table rotate at max >30rpm speed. A tiny home senser is also integrated into the 4th axis unit so users can use this 4th set at high accuracy required applications.