YK-KE-95 588N High Precision Semi-enclosed Linear Motor Modules
with High Performance Quality for Industrial Automations
1. Products Overview
Linear motor is a transmission device that directly converts
electrical energy to direct motion machinery without requiring any
intermediate conversion mechanism. It can be regarded as a rotary
motor opened and flattened according to the radial and exhibits
planes. Linear motors are also called pushing rod motors. The most
common linear motor types are flat type, U-shaped grooves type, and
pipe type.
The linear motor is often briefly described as the rotary motor is
flattened, and the working principle is similar. The Rotor is made
of compressing coils with epoxy materials; magnetic tracks are
fixed on steel plane. The Rotor of the motor includes coil winding,
Hall component circuit board, electric heating regulator
(temperature sensor monitoring temperature) and electronic
interface. In regular rotating motor, the movement of the rotor and
the stator need bearings’ support to keep proper air gap.
Similarly, the linear motor needs a linear guide to maintain the
position of the movement generated by the Rotor in the magnetic
field. The linear motor needs to feedback the position of the Rotor
by a linear encoder, which can directly measure the position of the
load to improve its position accuracy.
Linear motor working principle:
The part as stator in rotary motor is called primary part, and the
part as rotor is called the secondary part. In actual application,
the primary and secondary parts have different lengths to ensure
that the coupling between primary and secondary is stable within
the required movement scope. Taking the linear induction motor as
an example: When the primary winding is connected to the AC power
supply, it generates a waving magnetic field in the air gap. The
secondary generates electromagnetic thrust and current when the
waving magnetic field cuts it. Then current generates its own
magnetic field and due to the interaction between these two
magnetic fields, a torque will be generated. If the primary part is
fixed, then the secondary part will move and, so that the rotor
starts to rotate and if secondary is fixed, the primary will move.
Applications:
Kaifull linear motors are widely used in industrial automation
applications, such as semiconductor assembly, photoetching
machinese, laser machines, wafer detection, AOI, electronics
assembly, precise dispensing, medical treatment, PCB puching,
textile machines, Digital inkjet priting, intelligent sorting,
luggage transport, high speed laminating equipment, food
processing, coordinate measuring, precison grinding, wire cutting,
ultra-high speed machines etc.
Here are some details of linear motors in medical fields,
First of all, a linear motor played an important role in surgical
device drivers. In traditional surgical equipment, it is usually
used to use chain or belt and other transmission methods. These
transmission methods are not only inefficient, but also prone to
vibration and errors, affecting surgical accuracy. The linear motor
has the characteristics of high precision and rapid response, which
can better meet the driver needs of surgical equipment. For
example, a linear motor can be used for the driver of surgical
equipment in minimally invasive surgery, making the surgery more
accurate and fast.
Secondly, linear motors are also widely used in medical equipment.
Many medical equipment need to achieve precision motion control,
such as medical X -ray machines, CT machines and other image
equipment. The high precision and high stability of the linear
motor can provide better exercise control performance for these
equipment, thereby improving the detection accuracy and the
treatment effect of the equipment.
The linear motor also plays an important role in the design of
medical devices. For example, some medical devices need to achieve
micro -movement, and the micron -level accuracy of a linear motor
can meet this demand. In the design of medical devices, linear
motors can also be combined with other technologies, such as
combining with robot technology, which can achieve remote control
and automated operations and improve the efficiency and quality of
medical services.
3. Products Features
Simplify Complex Processes, Module Forming:
Breaking the traditional linear motor, it is composed of complex
and multi component components. The base and guide rail are
integrated, and the slider, slide plate, and reading head bracket
are integrated to form a simple and sturdy integrated module.
Ultra-High Precision, Perpetually:
By employing a specialized process to embed guide rails directly
into aluminum profiles, followed by a single-pass precision
grinding using high-precision grinding machines, the linear motor
achieves even higher
accuracy and enhanced durability.
More Oil Storage, Longer Operation:
With a large oil storage capacity, the largest module can run up to
100,000 kilometers on a single oil injection.
Higher Load Capacity, Steadier Operation:
The slider contains a substantial number of large precision steel
balls, each ball capable of bearing a load of 1 to 2 tons.
Unwavering in Harsh Applications:
Capable of withstanding a 500mm eccentric load, the module
continues to operate impeccably.
Optimized Material for Enhanced Wear and Rust Resistance:
The embedded guide rails are made from stainless steel material,
offering superior resistance to wear, corrosion, and rust.
4. KE Series Linear Motor Naming Rules

5. Main Performance Specifications
Peak thrust | 588.0N |
Continuous thrust | 147.0N |
Linear Motors Constant | 15.2N/(W1/2) |
Maximum continuous dissipation power | 112.0W |
Peak current | 10.0Arms |
Continuos current | 2.5Arms |
Force Constant | 58.8N/Arms |
Back EMF (Electromotive Force) | 48.2Vpeak/(m/s) |
Interphase Impedance at @25° | 8.7ohms |
Interphase inductance | 36.5mH |
Electrical time constant | 4.2ms |
Maximum Terminal Voltage | 460Vds |
Maximum winding temperature | 120°C |
Weight of coil: | 1.5KG |
Electrical cycle length | 20.0mm |
Mechanical parameters |
Load | Acceleration: 1G, Velocity: 1000mm/s, Dwell Time: 0.2s, Travel
Distance: 1000mm. Maximum operational speed: 2000mm/s. Horizontal installation: 25kg Side hung installation: 20kg |
accuracy | Magnetic grating (resolution: 1μm): Repetition Accuracy: ±5μm.
Optical grating (resolution: 1μm): Repetition Accuracy: ±3μm. |
Straightness | ±10μm/300mm |
Module Weight | 60mm travel: 7.6kg (0.65kg increase per additional 60mm travel). |
Guide rail | External embedded double guide rail |
Installation method | Horizontal installation/Side hung installation |