NEMA23 2-Plase Waterproof Type IP65 Stepper Motor with encoder What is waterproof motor, what requirements does motor waterproof
have? - Most motors are not waterproof, in large part because they work in
environments that do not require waterproofing, and waterproofing
materials add costs that limit overall performance and are often of
value only to specific applications, such as pumps and fluid
handling, off-road vehicles and other applications where fluids may
come into contact with motors.Because of water and solvent, motion
control components are often exposed to the risk of corrosion and
failure, and waterproof motor is the key component to solve the
problem of water-induced motor failure.The motor industry has a
standardized liquid protection measure, known as IP protection
level, that electrical engineering and motor manufacturers need to
meet the requirements of the application specification.
Specifications IP Rating :IP65 | Holding Torque | 1.2N.m | | Related Current | 4A/Phase | | Resistance | 0.45Ω/Phase | | Inductance | 1.4MH/Phase | | Inertia | 280g.cm² | | Index | × | | Output | Differental | | IP Rating | IP65 | | Weight | 1.6Kg |
| Holding Torque | 2N.m | | Related Current | 5A/Phase | | Resistance | 0.37Ω/Phase | | Inductance | 1.8MH/Phase | | Inertia | 480g.cm² | | Index | × | | Output | Differental | | IP Rating | IP65 | | Weight | 2.5Kg |
Product description of Waterproof type motor Stepper motors are economical, accurate, and easy to control, and
they can operate reliably in a variety of environments (depending
on the level of protection IP chosen) preferably in machines with
additional enclosures or in clean environments High reliability, easy maintenance.Motor rotor structure accurate,
no loss of step.Rotor special material, not stuck machine Accurate position Control The angular displacement of the stepping motor can be precise
controlled by the number of electrical pulses.Angle accuracy can be
controlled within ±0.09°without any feedback devices. Automatic assembly line Automatic assembly line, improve production efficiency, low cost
without human operation, one line down intelligent mechanical
automatic assembly
Speed/Torque Characteristics(Reference Value)
Why can't ordinary motors meet this waterproof requirement? - Although standard motors are the backbone of industry and
laboratory motion control systems and provide reliable and accurate
positioning at the lowest cost, their design has some weaknesses in
terms of humidity.First, the coil of a standard motor is wound with
magnetic wire, a type of solid copper wire coated with enamel or
insulation.Although the coating process is good, it is not perfect,
and there are always some small pinholes in the varnish.When the
magnetic wire is wound into a coil, it is unlikely that any two
pinholes will line up and "short-circuit".
- In general, the conductor spacing provided by the insulation
prevents conduction from one pinhole to the next.If water is
between windings, it also facilitates pinhole to pinhole
conduction.In this case, the current from the power source will
quickly destroy the motor winding.High quality insulation and
impregnation processes can prevent this problem but greatly
increase product costs.
- The material of stator and rotor is easy to corrode and rust in
humid environment
- The rotor and stator of the motor are mostly made of magnetic iron
(silicon steel), which is easy to corrode in the humid environment.
Meanwhile, in order to optimize the torque, the gap between the
rotating teeth and non-rotating teeth of the motor is kept at about
0.05mm.When the motor is running, these rotor slots get hot,
usually high enough to turn any water in the motor into steam.The
steam is corrosive, so the magnetic iron in the rotor teeth rusts
faster than usual.Once rust has filled in the 0.05mm air gap and
the rotor and stator teeth start to rub, this eliminates the
effective torque of the motor and loosens the magnetic iron.
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