CUSTOMIZED MAINTENANCE PROGRAMS VIBRATION ANALYSIS PREDICTIVE ELECTRICAL MAINTENANCE PREDICTIVE MECHANICAL MAINTENANCE

RELIABILITY SERVICES

MORE THAN A VIBRATION READING

Our dedicated vibration team of engineers and technicians certified through the CMVA  (Canadian Machinery Vibration Association).  They assist on-site maintenance teams occasionally or on a regular basis in various assignments concerning vibrations.

Our team’s strength lies in the detailed reports, which describe trends, findings and provide a list of causes and possible solutions before a major failure occurs. Delom Services can also implement the corrective measures, if needed. That is what makes us your specialist in electromechanical rotating equipment.

Vibration analysis provides detailed information on the condition of equipment. It is now part of most maintenance teams’ toolbox, who use it to detect and diagnose problems and to establish priorities on the maintenance agenda. Vibration analysis can be conducted at a given moment in time, when needed to clarify a diagnosis or to detect wear. It can also be conducted during the pre-operational verification in order to eliminate infant deaths during commissioning.

On the other hand, a vibration route is a measure regularly taken on specific sampling points. The vibration route’s benefit is that it builds the units’ history in its operational environment and makes it easy to observe a bending of the curves that indicates damage or fatigue of certain components. Vibration routes are powerful predictive tools in the prevention of major failure.

Problems that can be detected with vibration analysis and vibration route:

  • Bearing wear
  • Imbalance
  • Misalignment
  • Bent shaft
  • Eccentricity
  • Resonance
  • Cage defect
  • Soft foot
  • Natural frequencies
  • Motor friction
  • Unstable Babbitt bearing
  • Gear wear/defect
  • Belt problems
  • Lubrication problems
  • Unit structure
  • Loose coils
  • Rotor bar defects

Vibration analysis and vibration routes can be conducted on all mechanical and electromechanical units of the powertrain.


  • Electric motors and generators
  • Fans
  • Gearboxes
  • Pumps
  • Extruders
  • Wind tunnels units
  • Crushers
  • Compressors
  • Blowers
  • Winches
  • Conveyers
  • Refiners
  • Shredders
  • Paper machines
  • Wind generators

Types of vibration analysis for the assessment of various equipment types

  • Current flow analysis
  • Gearbox-specific vibration analysis
  • Low speed diagnosis, as little as 35 rpm
  • Spectrum analysis
  • Long wave technical analysis
  • Gear profile analysis
  • Harmonic filters
  • Torsional vibration analysis
  • Natural frequency investigation
  • Shock test
  • Dynamic temper solution
  • Babbitt bearings check
  • Proximetric probe reading
  • Orbital analysis
  • Run up coast down parallel reading (16 tests channels)
  • Phase angles reading

FIBERSCOPE INSPECTION

Fiberscope inspection (or video scope inspection) is conducted with a small camera attached to a flexible device to perform a visual inspection of the internal components and take measurements in tight spaces such as in a slurry pump.

One of the key advantages of this type of inspection is that it can be done without altering the seals of the original manufacturer and therefore without voiding the warranty. Fiberscope inspection can also reach difficult to access places, which considerably reduce preventive maintenance time as there is no need to dismantle the unit.

Delom Services is a skilled rotating equipment specialist, highly qualified to analyze the inspection’s results. Our specialists will suggest solution to the problems they identified and if necessary, they can help on-site teams to implement them.

Fiberscope inspection can be helpful in situations such as:

  • Troubleshooting
  • Damage assessment assistance
  • Measuring faults and monitoring their progression (as small as 0.002 ″)
  • Preoperational verification
  • Gearbox inspection
  • Refiner motors routine inspection
  • End-of-warranty inspection
  • Gear damage inspection
  • Babbitt bearing inspection
  • Air gap inspection
  • Limited turn around time for diagnosis confirmation
  • Staff training
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PREDICTIVE ELECTRICAL MAINTENANCE

Predictive electrical analysis is used to determine the current condition of an electric motor or generator’s dielectrical system. When performed on a regular basis, inflection in the result helps detect deterioration of the insulation before it causes a catastrophic failure and therefore a production downtime.

Delom Services is a skilled rotating equipment specialist, highly qualified to perform the dielectric tests specific to your units. Our specialists will hand you a detailed report describing the actual condition of the unit as well as an estimation of its residual useful life.

Predictive electrical maintenance is recommended for all critical units and can include an assortment of the following:

  • Insulation resistance (MEGGER)
  • Polarization index (PI)
  • Step-up voltage
  • Dielectric discharge test (DDT)
  • Core loss test
  • Stator hot spots test
  • Resistance electric test
  • Impedance test
  • Surge electric test
  • Voltage drop test
  • Commutator profiling
  • Neutral point verification
  • Neutral point setting
  • Brushes and brush-holders verification
  • Strand to strand testing
  • Collectors’ concentricity verification
  • Infrared imaging (thermography)
  • Assistance for electrical settings for all types of electric motors
PREDICTIVE MECHANICAL MAINTENANCE

Predictive mechanical analysis is used to determine the current condition of an electromechanical unit. When performed on a regular basis, variances in the results help detect deterioration before it causes a catastrophic failure. Combined to vibration analysis and fiberscope inspection, the mechanical verification provides maintenance teams with a 360o vision of the unit’s condition.

Delom Services is a skilled rotating equipment specialist, highly qualified to perform mechanical assessments on the whole power train. Our specialists will hand you a detailed report detailing the actual condition of the unit as well as an estimation of its residual useful life.

Delom Services’ mechanical inspection may include


  • Complete mechanical diagnosis
  • Laser alignment
  • Vibration analysis
  • Dynamic balancing
  • Complete machine installation verification
  • Ultrasonic lubrification
  • Lubrication routes set up
  • Automatic lubricator adjustment
  • Lubricant selection assistance
  • Dimensional verification with CMM instruments
  • FARO measuring arm
  • Leica laser tracker
  • Profiler inspection
  • Oil and grease analysis
  • Babbitt bearing bonding test
  • Babbitt bearing mechanical gap measurement
  • Babbitt bearing inspection
  • Impulsers and gear measurement verification
  • Shaft current measurement
  • Bearing housing concentricity and parallelism verification
  • Couplings condition verification
  • Assistance for mechanical settings for all types of electric motors
CUSTOMIZED PREVENTIVE MAINTENANCE PROGRAMS

Delom Services’ team of experts joins on-site maintenance teams to plan and perform preventive maintenance tasks. An optimized maintenance program will provide frequent updates of relevant data regarding the condition of all critical units so that any slight data change can be easily spotted.

An effective maintenance program is designed to meet the specifics of each plant and takes into account its type of production and ease of access to spare parts or replacement units. An effective maintenance program provides optimal reliability and productive maintenance shutdowns.

DELOM+

Delom+ is a rotating equipment and inventory tracking software developed by Delom Services and made available to its clients.

This online tool makes it possible to quickly locate a spare motor that is suitable for a given application. Delom+ makes motorization management easy.

With Delom+ it is also possible to quickly track the work done on every motor whether on-site or at a shop. It is like a complete health record for your plant’s rotating equipment inventory that you can skim through or study in depth to look at the history of each unit.

Everyone single operation carried out by our reliability experts is recorded in detail by location and by unit. Recommendations are recorded and coded according to the criticality of the unit, making it easy to prioritize the tasks to be performed during maintenance shutdowns.

Delom+ is another proof that Delom is your one-stop shop for the repair and maintenance of your industrial rotating equipment.

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