PLATES
The pursuit of the perfect weight plate is focused in four areas: Casting Quality, Weight Accuracy & Consistency, Hole Accuracy & Consistency, and Workmanship & Painting. When a plate is flawlessly cast and weighs what it says, you can feel the difference in every exercise. When the surface is expertly ground and painted, the quality is obvious to the eye and to the touch. It gets down to pride. When you have quality Olympic plates on your exercise floor or in your home members and consumers will see, feel, and appreciate the difference.
NOTE:
CHROME PRODUCTS ARE NOT RECOMMENDED FOR CLUB OR COMMERCIAL USES. THESE PRODUCTS
ARE DESIGNED FOR RESIDENTIAL USES AND OR PERSONAL, SUPERVISED TRAINING APPLICATIONS
ONLY.
CHROME IS NOT GUARANTEED AGAINST CHIPPING OR FLAKING DUE TO THE SMACKING TOGETHER
OF DBELLS AND/OR DROPPING THE PRODUCT ON FLOORS.
The Evolution Of Better Weight Plates
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1977
Pullem Introduces |
1999
Ivanko Introduces |
2001
Ivanko Introduces 7-Holed Rubber Coated E-Z Lift Plates |
2002
Ivanko Introduces |
Click On the Product Category Photo To See Sizes, Specifications, and Price list
Kilo plates are available for OM, OMEZS, RUBO, ROEZH, RUBOEZH, CBP, CBPP, and OCB series plates.
CUSTOM ENGRAVING |
OUEZ |
ROEZH Color |
ROEZH |
Click link above for the Ivanko engraving program |
Engraved and white filled |
7-Holed Colored Rubber |
7-Holed Black Rubber |
OMEZH |
OMEZS |
OMC |
OM |
| Cast Iron Machined Painted E-Z Lift Plate with Holes |
7-Slotted Machined Hammertone Gray |
Cast Iron Machined Chrome
Olympic Plates |
Machined Hammertone Gray Olympic Plates |
| |
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O2B |
CBPP |
CBP |
OCB |
| Economy Black Painted Olympic Plates |
Cast Iron Machined Painted
Calibrated (Powerlifting) Olympic Plates |
Cast Iron Machined Chrome
Calibrated (Powerlifting) Olympic Plates |
Rubber Encased Calibrated
(Weightlifting) Bumper Plates |
OBP |
|
RUBO |
RM |
Rubber Encased (Weightlifting)
Bumper Plates |
Rubber Encased colored (Weightlifting) Bumper Plates |
Rubber Encased Olympic Plate |
Cast Iron Machined Painted Plates |
R |
R2B |
RUB |
AOP |
Cast Iron Painted Plates |
Cast Iron Economy Black Plate |
Cast Iron Rubber Encased Plates |
Add on Plate |
IVANKO RUBBER PLATE
RUBO Plate Comparison
IVANKO |
BRAND "X"
|
| IVANKO patented rubber plate manufactured to our own specifications | No one else can make our quality plate |
| No recycled rubber used | Low grade, floor-sweepings in the composite rubber smell when decomposition occurs |
Will never crack or split |
Rubber skin cracks and peels right off |
| Never needs painting | Low-grade rubber changes, needs painting |
| Correctly proportioned plates | Some plates too wide or too thick design |
| Guaranteed to be of +/- 2% average weight tolerance.* | No guarantee of plate accuracy, usually +/- 5-8% variance |
* Average weight tolerance of +/- 2% means we take 100 plates and weigh each
plate. We then divide the total by 100. That figure will be 2% plus or minus
the plate weight. This is not each 45 lb. plate, +/- 2%! Do not be confused
by misunderstanding the IVANKO formula for accuracy.
Plate Hole & Bar Fitting
Problems
Olympic Plates
Occasionally, people will call us to say
"Your plates will not fit on our bars!" We always wonder why they
never say "Our bars do not fit into your plates." So what is the
problem? The bar not fitting into the plates or plates not fitting on to the
bars? Whichever way it is, it is still a problem if it does not fit. Here
are the facts:
The best Olympic bars made in the world, IVANKO, Eleiko, York and Uddeholm
all measure between 49.5mm (1.949 in.) and 50mm (1.969 in.) diameter. The
hole size of an IVANKO Olympic plate is 50.2mm (1.976 in.) minimum to 50.8mm
(2.00 in.) maximum. These dimensions will fit on any of the top bars in the
world.
So where problems usually occur is when
people try to use our plates on cheap bars. In this case, the plates that
are to the extreme maximum, 50.8mm (2.00 in.) may fit. The plates that at
the minus side of the hole tolerance, 50.2mm (1.976 in.), will not. Usually
at this point, a customer will ask us why we do not just make the holes in
our plates larger so that they can fit every bar? This is not what IVANKO
is all about. IVANKO is about accuracy: consistent measurement, close tolerance,
and a proper fit. This is the intricate part of the IVANKO philosophy. We
are not about to change it, just to fit a lot of the junk, cheap bars that
are out in the stores. That is not a concern of ours.
Regular Plates
The hole size of an IVANKO regular plate
is 1-5/32 in. This is designed to fit the two popular bar sizes: 1 inch and
1-1/16 in. All IVANKO's regular bars are 1-1/16 in. diameter. This is because
it is approximately 15% stronger than a 1-inch bar. We feel this is necessary,
especially on a barbell set that exceeds 110 lbs. to prevent the bar from
bending. It is essential for fixed weight barbells to have a close tolerance
between the hole and bar. This way the plates do not tend to rock and force
the washer off the end of the handle.
In this case, many manufacturers have a totally different philosophy than
we do. They usually like to use 1-inch bars. A 1-inch bar, has less material
than a 1-1/16 in. bar and a 1-inch bar is 15% cheaper than 1-1/16 in. bar.
So they save money using a 1-inch bar. Instead of drilling the holes to a
perfect fit, they prefer to cast the holes into the plate. As a result, they
usually have to be oversized so that any slag in the plate hole will not affect
the fit on the bar. They make the hole as tight as possible so it will not
flop over on 1-inch bar and give the appearance that it is cheap. Therefore,
many of these plates will not fit on a 1 1/16 in. bar.
Our attitude is that we make products right from the very beginning. Others have made the product cheaper by cutting corners just to get a lower price. It is not our responsibility that IVANKO plates do not fit on the cheap bars.
IVANKO DUCTILE CAST PLATES
Five Points to Determine Value
Regular Plates (For 1" & 1-1/6" Diameter Bars)
I. Weight Accuracy and Consistency
A. Domestic Foundries (Cast from scrap)
1. Weight Varies (+ or - 5% average)
2. No selection is usually done.
3. Low cost to manufacture.
B. Ivanko (Cast from ASTM - Grade 20)
1. Weight varies (+ or - 2% average).
2. Selection (light and heavy plates removed to reach our desired standard
- or + 2% average).
3. Moderate cost, labor used for selection costs less.
II. Hole
A. Domestic Foundries (Tapered core hole)
1. Low manufacture cost.
2. Pointed, hard edge of hole destroys bars & chrome plating.
3. Plates do not ride perpendicular on bar.
4. If cored to fit 1-1/16" diameter bars then too loose on 1" bars.
If cored to fit right on 1" bars then will not fit every 1-1/6"
bar.
B. Ivanko (Drilled holes)
1. More expensive manufacture cost.
2. Fits good on 1-1/16" and 1" diameter bars.
3. Plates sit perpendicular on bar.
4. Tolerance controlled with go-no go gauges.
5. Friendly to bar and chrome plating.
III. Surface Texture
A. Domestic Foundries (Automated molding machine)
1. Usually excellent, consistent surface.
2. More expensive than floor molding in low-labor countries, only practical
in high-labor countries.
3. Selection usually not performed because of labor costs.
4. Fill in technique usually not performed because of labor cost.
B. Ivanko (Floor Molding)
1. Lowest cost method of production
2. Selection necessary, to retain only the best casting.
3. Fill in and sand blast necessary.
4. Vertical sand blasted twice to insure clean surface.
IV. Edge Finishing
A. Domestic Foundries (No grinding)
1. Automatic molding leaves only thin parting line.
2. Thin parting line, almost carbide hardness,destroys floor, concrete or
wood.
3. No edge grinding saves costs.
B. Ivanko (Grinding Edge)
1. Removed hard edge, friendly to floors.
2. Improves appearance.
3. Increases costs.
V. Painting
A. Domestic Foundries (Dipping)
1. Low Costs.
2. Paint always has drips.
3. Usually fast drying, inexpensive paint.
B. Ivanko (Electrostatic Spray Painted)
1. Vertical sandblast prior to any matching or fill in work.
2. Vertical sandblast second time after machining and fill in work.
3. Tough polyester base paint.
4. Paint baked for one hour.
P.O. Box 1470 · San Pedro, CA 90733 · USA ·
Phone 310-514-1155 · Fax 310-514-1363 · email info@ivankobarbell.com
· www.ivankobarbell.com
This document maintained by webmaster@ivankobarbell.com.
Material Copyright © 2007 Ivanko Barbell Company