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| Sales | VEEM Dynamic Balancing |
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Click here to access our Veem propeller
sizing form . Input your data and submit to us online.
Alternatively if you prefer to fill-out our Veem Excel prop-data
sheet, please click
here to download and complete. You may email back to us
as an attachment or fax to us @ (757) 485-7839
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| VEEM
Propellers |
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| VEEM
Dynamic Balancing |
Dynamic Balance Facilities
Dynamic balancing is integral to VEEM's propeller manufacturing. Propellers
are balanced to a very high standard using either ISO 1940/1 G2.5
or G6.3, and all propellers that leave VEEM have a balance certificate
on record. Dynamic balancing is particularly important for high speed
vessels to ensure that VEEMs' high performance designs are accompanied
by excellent smoothness.
Propeller Balancing Notes
Caution must be taken when balancing marine propellers due
to the critical nature of blade cross sections and the effect that
this has on thrust (dynamic load) during operation. When balancing
propellers, the allowable residual unbalance as defined by ISO 1940/1
should be calculated by taking into account shaft bearing spacing's
and propeller added mass (due to entrained fluid). As propellers are
generally balanced between machine pedestals, but operate as an overhung
rotor, the allowable unbalance is commonly miscalculated. Of major
concern is that by far exceeding the required balance standard, vibration
can be introduced due to the effect of dynamic forces generated by
distorted blade profiles. This introduced vibration greatly exceeds
any benefit gained by reducing the unbalance in air. This provides
a sound reason as to why balance standards for marine propellers should
not be exceeded.
Dynamic Balancing Capabilities
The capabilities of the balancing division which is equipped
with 4 Schenck and 2 CEMB balancing machines includes:
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Dynamic Balancing - 100grams to 28,000 kg. 3.5 meters
in diameter and 12 meters long.
• Static balancing
- 100grams to 28,000 kg. 7 meters in diameter and 12 meters long.
• General Balancing of - Propellers, fan and
pump impellers, centrifuges, turbines, wheel hubs, machine spindles,
brake drums, electric armatures and rotors, gyroscopes, rollers, beaters
etc.
• Engine Balancing - dynamic balancing
of all engine components for all currently available engines from
single cylinders to V16 Alco diesels.
• Drive shaft
Balancing - of all marine, industrial, automotive, agricultural,
transport and earthmoving power takeoff shaft.
ISO 1940/1 Dynamic Balance Quality Grades
G16 Drive shafts, engine components, engine crankshafts
G6.3 Marine main turbine gears, pump impellers, electric armatures
G2.5 Gas and steam turbines, turbo compressors, computer memory drums
G1 Grinding machine drives, small electric armatures, phonograph drives
G0.4 Gyroscopes, Spindles, precision grinders
Nata Certification
VEEM is certified for dynamic and static balancing by the National
Association of Testing Authorities and is controlled under an ISO
9001:2000 quality system.
Balancing Experience
Since its inception in 1968, the division has been a leader
in the field of dynamic balancing and is equipped with modern, accurate
equipment to meet the demands of its wide variety of clients. We are
proficient in balancing to ISO 1940/1 and AS 3709 standards down to
a quality grade of G1, where required. |
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VEEM
Propeller Manufacturing |
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VEEM
Research Development |
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Contact WildCat Props!
Custom propeller configurations are also available on request. Should you
require assistance in selection of a new propeller suited to your vessel,
restoration-repair of your existing propellers or prop tuning-maintenance
please contact WildCat Props. |
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Read How WildCat Props Exceeds the Expectations
of Our Customers!
We want to again thank you for your extremely knowledgeable and professional
response and work on our Viking 45 propellers.
As you know, Pam owned a propeller shop with her Father several years ago
and is very knowledgeable. After talking to you, it became apparent we should
send the propellers to you for rework and to put your modification on to
minimize cavitation. After receiving the propellers back in a short period
of time they were installed. We immediately found reduced vibration and
were pleasantly surprised at an increase in performance of 2 mph at cruise.
Thanks again for your quick and professional response. We would not hesitate
to recommend your shop to anyone looking for quick and quality work.
Dave Hopton
Irvington, VA
Read more customer testimonials here |
Also read customer propeller case studies |
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