Alfa Laval OptiLobe - Magnetic Mixers

Example of exploded view - LeviMag® UltraPure
Impeller
O-ring
O-ring
O-ring
Female
bearing
Male
bearing
Drive rotor
Flange
Gear
motor
* Fastening
element
* Screw
* Cover* Parts are included in the gear motor
Weld plate
Shaft
Inspect the magnetic mixer regularly
Preventive maintenance aims to prevent failur
e of equipment by doing e.g. regular lubrication and adjustments. Based on
experience and knowledge about the running conditions, it is also possible to replace wear parts before they fail. Keeping a
maintenance log is a good way to build experience. After the first 25 hours of operation, listen for abnormal sounds. If any,
dismount the mixer and check all parts for scratches and dents. Alfa Laval recommend that the bearings and O-rings should be
checked for cleanability and wear after one month of operation. If there is abnormal wear on either component, contact Alfa
Laval for further instructions. Regular inspections should be performed at least every 6th months or as according to local
preventive maintenance plans.If any component is found damaged during inspection, please contact Alfa Laval for repair and/or
replacement parts. All wear parts or damaged parts should be replaced only with Alfa Laval genuine spare parts.
Possible damages on the parts are listed below:
No. Component Check zone Description Control method Action
1 Impeller Surfaces and edges
- scratches, foreign particles
- tolerance on bearing surface
- visual
- measuring
- cleaning
- change bearing
2 Female bearing
Surfaces and edges
Thread
- scratches- tolerance on surface
- damage on thread
- visual
- measuring
- visual
- change bearing
3 Male bearing
Surfaces and edges
Thr
ead
- scratches- tolerance on surface
- damage on thread
- visual
- measuring
- visual
- change bearing
4 O-rings Surface - deformed- cracks - visual - change O-rings
5 Weld Plate
Surfaces and edges
Thread
- damage on thread
- damage on outer OD
- visual
- measuring
- re-thread, if possible
- re-polish, if possible
6 Drive Unit
Drive rotor
Gear motor
Motor
- foreign particles on parts
- leaks or noises
- cable failure
- visual
- audible
- cleaing
- change gear motor
- repair gear motor
The clearance between female and male bearing should not exceed 0.15 mm.
If the value exceeds – Alfa Laval recommend changing both bearings.
Scheduled maintenance intervals
To ensur
e that your Alfa Laval LeviMag® operates efficiently, it is essential to follow a simple preventive maintenance program,
which will keep your machine in good working conditions. Good maintenance requires careful attention at regular intervals. The
following recommended preventive maintenance procedures are based on the average operating conditions of most Alfa Laval
magnetic mixers. A mixer which is subject to abrasive fluids, will need more frequent attention than one working in ideal
conditions. The maintenance program should be adjusted to meet the demands of your normal operating condition.
Alfa Laval recommend that bearings and O-rings are inspected at least every 6 months. Alfa Laval recommend that bearings and
O-rings are replaced at least every 6000 operating hours or every 3rd year.