A tubular motor, also known as a tube motor or tubular linear motor, consists of a magnetic rotor and an electric coil in a housing. You can see this quite well in the picture on the right. The piston rod is the magnetic rotor (magnets placed at fixed distances in a tube). The box is the electric coil. The magnetic rotor slides through a plastic slide bushing, which is housed in the coil box. When the coil is energized, the magnetic rotor thus moves. An integrated distance measuring system enables position detection
In the tubular motor category, we offer two distinct product families:
- Green Drive: For large forces and for 230Vac or 400Vac
- NL Series: For smaller forces and for 24Vdc or 48Vdc
In the following, you can find more detailed information about both families.
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Most important features:
The Green Drive tubular linear motor is a direct drive actuator. The linear motion is generated without ballscrews, belts and or gears. The Green Drive is composed of two parts: the stainless steel slider with holes for payload fixing and the IP65 motor body that contains the coils and the feedback electronics. The slider is guided by high performance sliding bearings. The electronics contains position sensors, temperature sensors, interpolation electronics and motor parameters as an electronic data sheet (EDS). The Green Drive standard version is available in different sizes up to reach 1,160 N of peak force. All models are available with different strokes and feedback options. Additionally, special models for hygienic applications are available on request.
Feedback options: Analog SIN/COS 1Vpp, Quad A/B, BiSS-C.
DC-link voltage: 320Vdc or 560Vdc (same winding).
The most important features of this family are:
Our miniature linear motors are a complete solution for the pharmaceutical and medical industry and for all kind of automatic machines in general. One of the advantages of the standard NL series is its compactness with flange dimensions beginning from 15x34mm till 35x63mm. The linear motor is composed of a high performance three phase winding, an integrated encoder SIN/COS 1Vpp and a rod in AISI 304 stainless steel. The NL series, composed of 6 different types, has an excellent performance and dimension ratio. The force range starts from 0,6 N up to 20 N of continuous force with peak forces 6 times these values. The standard power supply of the drive is 24/48 VDC.
The miniature linear motors NLI have the same outside dimensions of the standard NL series, including a high-performance servo drive with positioning features and CANopen fieldbus control. The power supply of these motors has a wide range from 24 Vdc up to 48 Vdc. The miniature linear motors NLI with integrated drive electronics are particularly suitable for the replacement of pneumatic actuators, using the same control logic.
Main features:
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| Motor Code | Rated Force [N] | Peak Force [N] | Actuator length [mm] | LF [mm] | LH [mm] | max. effective Stroke | Datasheet | |
Standard | NL040Q | 0,6 | 3,9 | 55 | 15 | 34 |
| ||
| NL040X | 1,08 | 7,02 | 91 | 15 | 34 | ||||
| NL080Q | 4,8 | 31,2 | 118 | 20 | 40 | ||||
| NL080X | 8,64 | 56,16 | 178 | 20 | 40 | ||||
| NL120Q | 21,12 | 137,28 | 185 | 35 | 63 | ||||
| NL120X | 38,016 | 247,104 | 305 | 35 | 63 | ||||
Integrated | NLi080Q | 4,8 | 31,2 | 118 | 15 | LH1 | LH2 | 800 |
|
| 40 | 49 | ||||||||
| NLi080X | 8,64 | 56,16 | 178 | 15 | 40 | 49 | 800 | ||
| NLi120Q | 21,12 | 137,28 | 185 | 20 | 63 | 90 | 1500 | ||
| NLi120X | 38,016 | 247,104 | 305 | 20 | 63 | 90 | 1500 | ||
The tubular motors (linear motors) are also available as a food-safe i.e. hygienic version. See picture on the right.
Most important features of the food-grade i.e. hygienic version:
Contact us today to talk to an experienced MACCON engineer!
The linear motor has an excellent precision and operates much more quietly than a pneumatic drive. Compared to conventional products, the tubular linear motor scores points above all with its excellent performance in the following areas energy saving, speed and acceleration.
