Field Services

IN – FIELD REWINDING
Rewinding services include evaluation of AC and DC components, now coil
and insulation manufacturing components installation and more.
CEMCO’s maintenance team provides first-rate in-field rewinding services for electric motors and
generators. Our staff provides the exceptional technical
experience needed to repair and maintain an assortment of
components and equipment.
We provide the most rigorous testing, analysis, and rewinding of
all diverse AC and DC motors and generators supplied by a wide
array of manufacturers. Canadian Electro-Mechanical Company
(CEMCO) is highly beneficial—and very much necessary—for
older pieces of equipment to keep up with the industry’s strict
operational demands and changing requirements. As your
components age, the ability of the assemblies to work together
properly can substantially decrease. CEMCO coils and insulation
prevents the breakdown of dielectric and thermal performance.
Utilizing CEMCO’s state-of-the-art facilities and innovative
techniques and materials, our team can skillfully perform in-field
rewinding services to improve the power capacity and reliability
of electric motors and generators. Canadian Electro-Mechanical
Company technicians bring a vast amount of expertise to on-site
rewinds, and they understand what is required to design a new
insulation kit. Dimensional accuracy of rotor dimensions enables
us to fabricate any precision components you may need. Once
the unit is reassembled, we complete a full battery of tests to be
assured that the renovated motor or generator is operating
properly before it is returned to service.
In-field rewinding services offered by Canadian Electro-
Mechanical Company (CEMCO) provide our customers a highly
detailed level of service that is virtually unmatched in this
industry. Our comprehensive planning, experienced technicians,
high quality materials, and dependable outcomes result in a
world-class service.
Our professional in-field rewinding service includes:
- Evaluation of AC and DC motors and generators
- Fabrication of new coils and insulation
- Installation of new components
- Testing and verification of system
In-field rewinding is a comprehensive service that is available 24 hours, 7 days a week to keep your
equipment performing at optimal levels.

IN – FIELD BALANCING
Unbalance is the most common cause of damage in rotating machines,
CEMCO offers balancing machines in-field.
Unbalance is the most common cause of damage in rotating machines. It can be found in fans,
ventilators, belt pulleys and couplings. The enormous centrifugal forces resulting from the uneven mass
distribution generates high vibrations during rotation, which affects the entire machine construction. This
can cause bearings, seals and couplings to wear
prematurely or even fail.
An unbalance is easy to detect in the vibration
spectrum because it vibrates in sync with the
shaft rotational speed. Its energy is concentrated
at the first harmonic spectral line. This can be
remedied by balancing the installed rotor with a
portable balancer, a process known as field
balancing.
Canadian Electro-Mechanical Company
(CEMCO) technicians can optimize, detect and
eliminate unbalance. Besides standard
applications, such as industrial fans of all sizes
and shapes, the balancing devices are also ideal
for special requirements, such as field balancing
of rotor blades on wind turbines.
Causes of unbalance in fans, ventilators, blowers
Manufacturing defects
Unbalance from repairs
- Difference in fit between the balancing and ventilator shafts
- Missing balancing masses
- Centrifugal force deformation
- Unbalance on coupling
- Blade sag
- Improper paintwork or coating
- Blade cracks
- Detached coating
- Improper paintwork or coating
- Strain from rotor disk weld.