Rotary Solenoid 90-Degree Advantages
The first major advantage offered by 90-degree rotary solenoids is their ability to produce precise and repeatable angular movement without additional mechanical components. Since it is highly compact, the component can easily fit into confined spaces. Also, it ensures fast response times and reliability of use that allows the component to operate constantly in industrial facilities.
Furthermore, the component requires minimal maintenance and is designed for durability. Another advantage worth mentioning is that rotary solenoids consume fewer resources since they do not require any energy at all until being energized. Being based on the fixed rotation angle, it does not require sensors and controllers to guarantee performance consistency.
Rotary Solenoid 90 Degree Drawbacks
However, 90-degree rotary solenoids have some limitations. First, the range of rotation angles is limited to 90° making them less flexible in comparison with motor-driven devices. Besides, the amount of torque produced is limited, so it may not be sufficient in heavy industrial applications. Continuous use of the solenoid in some cases might lead to excessive heat generation.
Additionally, these solenoids might require additional elements like return springs or drivers in order to control and reverse their movement. Due to the specific design, such solenoids might cost higher compared to simple linear solenoids.
Solenoid troubleshooting guide for Rotary Solenoid 90 degree
1 Does the solenoid turn?
Causes:
There is no power supply or the voltage is incorrect.
The coil burnt out.
Poor or loose connection
Circuit failure
Answer:
Measure the voltage supplied.
Examine all terminals and connections.
Find out whether the resistance is correct (open circuit indicates a burnt out coil).
Control the output voltage of the driver circuit or control board.
2. Weak rotation or incomplete rotation.
Possible causes:
Not enough voltage or current.
Overload (excessive torque).
Internal wear or partial magnetic failure
Dust and other contamination in the air gap
Answers:
Ensure the appropriate voltage and current ratings.
Reduce the load or choose another model.
Clean the inner components.
Inspect magnetic and/or armature parts for any signs of wear
3. Slow response or long action time
Possible causes:
Insufficient voltage
The coil overheated
Duty cycle is too high according to the parameters
Mechanical friction
Answers:
Monitor the power supply.
Cool the solenoid down or reduce the duty cycle
Lubricate the moving parts if required.
Properly designed driver circuit
4. The solenoid is excessively heated.
Possible causes:
Continuous energization of the unit (working over the limit of its duty cycle).
Excessive voltage supply
Insufficient air circulation
Worsening coil insulation
Answers:
Use the solenoid within its duty cycle (only occasionally).
Check the voltage rating
Ensure proper airflow or heat dispersion.
Replace the coil if the insulation deteriorates.
5. No return to neutral position
Causes:
The return spring is broken or weakened
Foreign material obstructing the operation
Residual magnetism
Misalignment
Answers:
Replace or repair the return spring.
Remove any obstructions.
Demagnetize the unit if necessary
Align the shaft properly.
6. Noise or vibration
Possible causes:
Loose mount
Internal wear
Malfunction of the shaft
Impact-type operation
Answers:
Retighten the screws that keep the mount intact.
Check all internal components for any signs of wear.
Ensure proper alignment during installation
Soundproofing material if necessary.
7. Operation in bursts
Some possible reasons:
Unstable power supply
Loose connections or poor soldering
Driver circuit malfunction
Thermal overload triggering
Answers:
Ensure proper and stable voltage supply.
Examine soldering and connections
Control signals.
Monitor the duty cycle.
8. Coil burnout
Possible causes:
Excess voltage
High duty cycle exceeding ratings
Bad heat dispersion
Short circuit
Answers:
Apply the appropriate rated voltage and current.
Use additional protection: a fuse and driver.
Ensure proper cooling
Repair or replace the coil
✅9. Some useful hints for avoiding failures
Always use the units within the rated voltage and duty cycle.
Select the appropriate torque margin (+30-50%)
Keep the solenoid clean.
Stable power supply and properly chosen driver circuits
Periodic maintenance and troubleshooting
