500W Cnc Spindle Motor DC 48V 0.44N.M Brushless Electric Motor
A Brushless DC Electric Motor (BLDC) is an electric motor powered
by a direct current voltage supply and commutated electronically
instead of by brushes like in conventional DC motors. BLDC motors
are more popular than the conventional DC motors nowadays, but the
development of these type of motors has only been possible since
the 1960s when semiconductor electronics were developed.
Both types of motors consist of a stator with permanent magnets or
electromagnetic coils on the outside and a rotor with coil windings
that can be powered by direct current on the inside. When the motor
is powered by direct current, a magnetic field will be created
within the stator, either attracting or repelling the magnets in
the rotor. This causes the rotor to start spinning.
| Item | Specification |
| Hall effect angle | 120 degree electrical angle |
| Shaft run out | 0.025mm |
| Radial play | 0.02mm＠450g |
| End play | 0.08mm＠450g |
| Max.radial force | 75N ＠20mm form the flange |
| Max.axial force | 15N |
| Insulation class | Class B |
| Dielectric strength | 500VDC for one minute |
| Insulation resistance | 100MΩ Min.,500VDC |
Brushless DC motor itself is the electromechanical energy
conversion part, it in addition to the motor armature, permanent
magnet excitation two parts, but also with a sensor. The motor
itself is the core of brushless DC motor, which not only relates to
performance index, noise and vibration, reliability and service
life, but also involves manufacturing cost and product cost. By
adopting permanent magnetic field, the brushless DC motor can get
rid of the traditional design and structure of the general DC
motor, which can meet the requirements of various application
markets, and develop towards the direction of saving copper and
materials, and making it easy. The development of permanent magnet
field is closely related to the application of permanent magnet
materials. The application of the third generation of permanent
magnet materials promotes the brushless DC motor to the direction
of high efficiency, miniaturization and energy saving.
Product Description
1. Three phase BLDC motor;
2. Made of anti-high temperature permanent magnet and high quality
cold-rolled steel sheet;
3. CNC machine engraved axle, high quality bearing;
4. Alluminium alloy cap, plastic insulation, copper wires
auto-wired.
5. Featured by its low noise, low vibration, low heating, of stable
performance;
6. Excellent internal damping, can be used by different industries
and under any circumstances, long lifespan.
| main applications of bldc motor | | |
| | | |
| Industry | Content | Industry | Content |
| Medical equipment | Hand-held surgical instruments | Aerospace Industry | Electric seat adjustment post |
| |
| Surgical robot | Flight recorders |
| |
| Micro-injection pump; Peristaltic pump | Autopilot |
| |
| Dialyzer | Air-conditioning system |
| |
| Automatic dosing system | Space Robot |
| |
| Radiation therapy equipment | |
| |
| Diagnostic equipment and testing instruments | |
| Robot | Humanoid robot | Auto industry | Adjustable shock absorbers |
| |
| Service robots | Emission abatement system |
| |
| Teaching Robots | Electronic steering |
| |
| Electronic tachometer
|
| Industrial Automation | Precision Positioning System | Communications Equipment | Antenna System |
| |
| Handling System | Copier / printer / plotter |
Ideal Applications for BLDC Motors
We’ve seen that BLDC motors offer high efficiency and
controllability, and that they have a long operating life. They are
widely used in devices that run continuously. They have long been
used in washing machines, air conditioners, and other consumer
electronics; and more recently, they are appearing in fans, where
their high efficiency has contributed to a significant reduction in
power consumption.
They are also being used to drive vacuum machines. In one case, a
change in the control program resulted in a large jump in
rotational speed—an example of the superlative controllability
offered by these motors.
BLDC motors are also being used to spin hard disc drives, where
their durability keeps the drives operating dependably over the
long term, while their power efficiency contributes to energy
reduction in an area where this is becoming increasingly important.
