|
Mineral: |
A - Aluminium Oxide; WA - White Aluminium Oxide; GC - Silicon Carbide;
NG - Ceramic |
|
Bore: |
31.75mm / 1 ¹/₄ |
|
Grit: |
36; 46; 60; 100; 120 |
|
Applications: |
Metal |
150mm / 6 inch Bench & Pedestal Grinding
Wheels are constructed using the latest natural and synthetic grit
configurations to the highest quality. This ensures optimum grinding efficiency
and wheel longevity, whether you are simply rough grinding, removing stock or
looking for that grinding solution for difficult-to-grind or heat-sensitive
materials. GYSL’s next-generation grain technology offers the best grinding
performance available in today’s market and our “Cyclone” Next Generation
ceramic wheels are raising the standard and exceeding all expectations.
Selecting the right grain & grade:
To achieve the best possible grinding
performance, it is important to select the correct wheel grade or
specification. The selection should be based on 3 main considerations:
Other factors such as wheel structure can
affect the wheel's grinding performance and capabilities.
Grain Types & Their Advantages:
Brown Aluminium Oxide (A) is a hard and tough grain suitable for a wide range of applications. It
is commonly used for rough grinding on bench or pedestal machines providing
good cutting properties and tool life.
Blue Fired Aluminium Oxide (BA) is brown fused alumina oxide that is specially treated at extreme
temperatures resulting in significantly improved strength and toughness. This
grain type is highly suitable for larger-diameter bench and pedestal wheels.
White Aluminium Oxide (WA) is more friable than Brown Alumina Oxide (A) which contributes to the
cooling effect during grinding resulting in a better grinding performance.
Suitable for grinding of most steel types and other high strength or high
hardness materials where heat generation is a concern. Highly suitable for tool
room, surface, and cylindrical applications where precision and control are
required. Commonly used throughout most precision-based engineering
applications.
Green Silicon Carbide (GC) is a very sharp and brittle grain which is extremely hard only second
to boron carbide and diamond. It provides a bright clean cut and is especially
suited to the grinding and sharpening of carbides and hand-held tooling. It is
also suitable for the grinding of grey and cast iron, non-ferrous metals such
as brass, bronze and aluminium as well as stone and rubber. It is also
recommended for certain types of stainless steel and is commonly used to dress
diamond-bonded wheels.
Pink Aluminium Oxide (PA) is more ductile than White Alumina Oxide (WA). The edge of the grain is
very sharp and durable. It is suitable for cutting tools, gauges, precise
parts, threaded workpieces, and applications where a high surface finish is
required. Whilst largely replaced by low to medium percentage Ceramic wheels
the pink wheel is still a favourite for operatives grinding heat-sensitive
materials or fine finish surface grinding.
Light Blue Aluminium Oxide (WAB) is constructed using highly friable special alumina and a special cool
cutting blue bonding agent. It is specifically designed for grinding High-Speed
Steels, Tool Steels and Carbon Tool Steels such as D2 and A2. The cool bonding
agent allows the wheel to remain free-cutting and cool resulting in minimal
blueing or burning of the steel. Highly suited for tool room and surface
grinding applications on materials around 55 Rockwell.
Ceramic Aluminium Oxide (NG) is the jewel in the crown when it comes to wheel performance. Our
Ceramic grain offers next-generation technology manufactured in a sintered gel
process. This results in a grain that can fracture at a controlled rate at the
sub-micron level constantly creating thousands of new cutting points. This
grain is exceptionally hard and strong making it the number one choice for
precision grinding of hardened steels and alloys upwards of 60 Rockwell. During
extensive testing on tool steels such as D2, this grade provided unrivalled
performance removing stock more quickly than anything else on the market. It is
also able to remain very cool providing a blemish-free surface finish.
Grit Size:
The two main considerations when deciding grit
size are your dependence on either stock removal or surface finish
requirements.
A coarser grit will remove stock more quickly
but provide a rougher surface finish whereas a finer grit will provide a better
finish but will take longer to remove stock. Another consideration is the type
of grinding you are doing, for example, if you are plunge grinding and need to
hold form you will benefit from a closer structure wheel and slightly finer
grit.
|
Coarse: |
24; 30; 36 |
|
Medium: |
46; 54; 60; 70 |
|
Fine: |
80; 100; 120; 150 |
|
Very Fine: |
180; 220; 240; 280; 320; 400 |
Hardness:
The hardness of a wheel can affect its
performance in several ways, softer wheels are more free-cutting and less
likely to burn the component but are prone to wear more quickly. Harder wheels
are more durable but may be susceptible to clogging and require more frequent
dressing. Wheel hardness is determined alphabetically by a letter being placed
after the grit size. The later in the alphabet the letter is then the harder
the wheel.
|
Soft: |
E; F; G; H |
|
Medium: |
J; K; L |
|
Hard: |
M; N; O; P; Q; R; S; T; Y |
Wheel Structure:
The structure of the wheel refers to the
spacing or pores between the abrasive grains. An open structure contains large
pores so that the grits are spaced further apart, a close structure is the
opposite with grits tightly packed together. Open structures are better for
grinding softer or sensitive materials, close structures offer better edge
retention in precision or formed wheels.
Grinding Wheel Reducing Bushes are available
in other listings in our online shop.
Other grinding wheel sizes, materials and
shapes are available upon request or in our online shop.
Please Note: The cost of the delivery includes packaging, handling and delivery charges.