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Product Name:
Cast Iron Weight Plate, Counterweight Plate Casting, Weight
Lifting Plate in China Foundry
Application on:
Weight plates are a type of weight lifting equipment used to add
resistance to adjustable barbells and dumbbells, as well as
plate-loaded weight machines. Depending on the intended purpose
of the weights and the price, weight plates can be made of
steel, cast iron, or, occasionally, cement-filled plastic. They
are round or octagonal, with a central hole to fit either a
standard or Olympic barbell. Weight plates are available in a
wide variety of styles and sizes, from those as small as one lb.
(0.45kg) to as much as 100 lbs. (45kg.)
Standard weight plates are usually round and are most often made
of cast iron, or occasionally of steel with a soft rubber
coating. These plates have a one-inch central hole to fit
smaller commercial barbells or home gym equipment. This
equipment is considerably lighter and easier to handle than
Olympic sized barbells, and is generally a better choice for
novice lifters.
Alternatively, more economical plates, designed chiefly for home
use, are available. These are usually made of a plastic casing
filled with cement, and will not take as much abuse as steel or
cast iron plates. If using these weight plates, it can be useful
to check the weight on a scale before use. There can be
considerable variation between plates, as they can become uneven
over time due to handling and general wear and tear.
Olympic weight plates are typically made of cast iron, and can
be either round or octagonal. Some Olympic weights, known as
bumper plates, are coated with rubber to protect both the weight
plates and the gym floor, if a loaded barbell is dropped.
Olympic plates have two-inch central holes to fit Olympic sized
barbells, and larger plates often have several other holes
spread out around the face of the plate to facilitate handling.
These plates are most often used by power lifters, body
builders, or other athletes who lift very heavy weights.
For training purposes, Olympic-sized plates known as technique
plates are available. Usually made of plastic, aluminum, or
similarly strong and lightweight materials, these plates fit on
Olympic barbells and are sturdy enough to withstand dropping,
but are considerably lighter than standard Olympic plates. These
are often used in high school gyms, where safety and durability
are of the utmost importance, but can also be used by
competitive adult power lifters. Technique plates allow athletes
to practice form and movement with a correctly proportioned
barbell, but without necessitating a full training load.
Material Grades:
Cast Iron, Gray Cast Iron, Ductile Cast Iron, S.G. Iron, Grey
Iron
Gray Cast Iron
ISO185 100 150 200 250 300
ASTM A48 NO.20 NO.25 NO.30 NO.35 NO.40 NO.45
DIN1691 GG10 GG15 GG20 GG25 GG30
EN1561 EN-GJL-100 EN-GJL-150 EN-GJL-200 EN-GJL-250 EN-GJL-300
BS1452 100 150 200 250 300
AS1830 T150 T220 T260 T300
Ductile Cast Iron
ISO1083 400-15 400-18 450-10 500-7 600-3 700-2
ASTM A536 60-40-18 60-42-10 65-45-12 70-50-05 80-55-06 80-60-03
100-70-03
DIN1693 GGG40 GGG50 GGG60 GGG70
EN1563 EN-GJS-400-15 EN-GJS-400-18 EN-GJS-450-10 EN-GJS-500-7
EN-GJS-600-3 EN-GJS-700-2
BS2789 400/17 420/12 500/7 600/7 700/2
AS1831 300-17 400-12 500-7 600-3 700-2
Production Process:
Sand Casting, Automatic Molding, Machine Molding, Shell Molding,
Green Sand Casting, Resin Sand Casting,
Supplier:
Cast Iron Foundry in China, Iron Casting Manufacturer, Iron
Foundry, China Foundry
Dandong Foundry is producing cast iron and cast steel castings
by various sand casting and precision casting processes,
including Automatic Molding Line, Resin Sand Molding, Shell
Molding, Manual Green Sand Cast Molding, Shell Molding, Lost Wax
Investment Casting Process by water glass and silica sol
materials.
We have complete quality inspection devices for Mechanical
Testing and Chemical Analysis, including tensile strength,
hardness, metallographic inspection, hardness, spectrometer,
ultrasonic testing. ISO 9001 Certified. We can issue quality
reports for all inspections.
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