RESINOX: Sharp Grinding. Long Service Life.
FUJI-made resin-bonded depressed-center (offset) grinding wheels for steel fabrication, stainless steel finishing and heavy-duty metal grinding.
Specification: T27 | 100, 125, 150 and 180mm | 6mm thickness.
ZA / PA / HZ24L: 180 × 6mm. Select the bore and rated speed to match your grinder.
RESINOX is the KOSOKU grinding-wheel series manufactured in FUJI's factories. These resin-bonded, T27 depressed-center (offset) wheels combine sharp grinding, durability and a choice of abrasive formulations for ordinary steel, stainless steel and demanding metalworking applications.
KOSOKU operated independently before its acquisition by FUJI in 2012. The RESINOX series was retained to continue serving established KOSOKU angle-grinder users. Like Super F2, RESINOX is manufactured by FUJI, so many dimensions and abrasive specifications are similar. RESINOX retains its own product range and grade selection for existing customers.
Warm pressing applies heat during the forming stage, whereas cold pressing forms the mixture without that added heat. This changes how the resin binder flows and the abrasive mixture consolidates during molding. FUJI combines warm-press processing with selected abrasives and a controlled bond formulation to produce the working structure required for each RESINOX grade.
During grinding, cutting edges gradually become dull. The bond progressively releases worn grains, exposing fresh, sharp abrasive beneath them. This renewal is the basis of self-sharpening: it supports sustained cutting action and helps reduce rubbing, heat buildup and clogging. It does not mean the wheel simply sheds abrasive rapidly; useful grain retention and timely release must be balanced.
| Series | Main characteristics and uses | Specification examples |
|---|---|---|
| AWA — General purpose | Regular steel grinding, including SS400 structural steel; weld dressing, deburring and routine fabrication work. | AWA24P BF / AWA36P BF; 100–180mm catalogue sizes |
| WA — Stainless steel | Dedicated stainless-steel grinding option; selected specifications also cover tool steel, alloy steel and mill-scale removal. | WA36P BF; 125 × 6 × 22mm listed |
| ZA — Premium zirconia | Durable zirconia abrasive for heavy-duty stock removal. Particularly suited to demanding work with a compatible FUJI KOSOKU high-frequency grinder. | ZA24P BF / ZA24M BF; 180 × 6 × 22mm |
| PA — Self-sharpening | A newer abrasive formulation designed to release worn grains and expose fresh edges readily. Sharp, less prone to loading, for tool steel, cast-iron deburring and weld treatment. | PA24M BF; 180 × 6 × 22mm |
| HZ24L — Sharp heavy grinding | Selected high-quality abrasive with strong self-sharpening action for demanding grinding of suitable steels and castings. | HZ24L BF; 180 × 6 × 22mm |
FUJI reports three times the grinding efficiency of conventional aluminium-oxide abrasives for ZA in its intended heavy-duty applications. The comparison applies to ZA, not every RESINOX grade; actual results vary with the work material, grinder and grinding conditions.
The RESINOX family uses a resin-bonded, reinforced T27 offset shape. Standard AWA sizes are shown below; the specialist ZA, PA and HZ24L options are 180 × 6mm.
| Diameter × thickness × bore, mm | Listed grades |
|---|---|
| 100 × 6 × 15 | AWA24P BF / AWA36P BF |
| 125 × 6 × 22 | AWA24P BF / AWA36P BF / WA36P BF |
| 150 × 6 × 22 | AWA24P BF / AWA36P BF |
| 180 × 6 × 22 | AWA24P BF / AWA36P BF |
Catalogue maximum peripheral speed: 72m/s. Match the maximum RPM marked on the supplied wheel to the grinder, along with diameter, bore, flanges and guard. A linear-speed rating in m/min is not an RPM rating.
In AWA36P BF, AWA identifies the abrasive, 36 is the grit size, P is the bond hardness grade and BF denotes a reinforced resinoid bond. When reordering, provide the full designation and dimensions.
RESINOX supports steel fabrication, weld dressing, burr removal and metal surface preparation. Select WA for stainless-steel work, AWA for general steel, and the 180mm ZA, PA or HZ24L grades according to the demands of heavy grinding.
Pairing the appropriate RESINOX grade with a FUJI KOSOKU high-frequency grinder can help maintain productive grinding under sustained load. ZA prioritizes heavy stock removal and durability; PA and HZ24L emphasize sharp, renewing cutting edges. The machine's speed, mounting and guard must match the wheel.
How does RESINOX differ from Super F2?
Both are FUJI-manufactured resin grinding wheels with overlapping sizes and materials. RESINOX preserves the KOSOKU wheel series for established users, with its own AWA, WA, ZA, PA and HZ24L selection. Match the complete grade rather than substituting by diameter alone.
Which RESINOX wheel should I use for stainless steel?
WA is the dedicated stainless-steel option. Tell FUJI the material grade and operation when choosing another specialist formulation.
Does self-sharpening mean a shorter wheel life?
No. It describes controlled renewal of cutting edges as worn grains are released. A suitable formulation balances sharpness, useful abrasive retention and wheel life for the task.
Which grades are available in 180 × 6mm?
The standard AWA range includes this size. ZA, PA and HZ24L are also 180 × 6mm specialist options for more demanding grinding.
Can I use RESINOX with a high-frequency grinder?
Yes, with a compatible machine, guard and mounting arrangement. FUJI can help select the grade for your KOSOKU grinder and workpiece.
Explore FUJI grinding wheels, 180mm RESINOX specialist wheels and the FUJI catalogue, pages 69–70.
Send your material, grinding task, grinder model, wheel size and quantity. Include the wheel you currently use and any issues with wear, loading or grinding speed.
Request a Quote or Sample TrialChoosing the correct abrasive wheel is critical for both operational efficiency and JIS-compliant safety. Fuji Grinding Wheels are engineered with precise technical markings to ensure the perfect match for your specific material and machine requirements.
For professional export markets, always verify the Peripheral Speed (m/s) compatibility. Fuji wheels are designed to exceed JIS Burst Speed factors, but operating at the recommended R.P.M. ensures the longest tool life and cleanest cut.
Note: Mismatched grit or hardness can lead to excessive heat buildup, affecting the workpiece's structural integrity.
Global Maintenance Standard: To maintain the high safety factor of Fuji wheels, avoid exposure to excessive humidity and chemical solvents during storage. Proper care preserves the resinoid bond's strength, crucial for high-load industrial applications.
Fuji products are manufactured following strict Japanese standard process requirements. Every wheel is engineered to meet or exceed JIS (Japanese Industrial Standards), such as JIS R 6242 and B 4051. Our core engineering logic prioritizes maximum operator protection by maintaining safety factors and burst speed capabilities that often surpass the highest industry benchmarks.
| Standard Region | Safety Factor (Burst Multiplier) | Safety Logic & Benchmark |
|---|---|---|
| FUJI (High Precision) | > 2.0x | Engineered to exceed JIS requirements for maximum reliability. |
| Japan (JIS R 6242) | 2.0x | Extreme Safety: A wheel rated at 80m/s must withstand a 160m/s burst test. |
| Europe (EN 12413) | 1.73x | Risk Balanced: Provides high safety redundancy for most industrial apps. |
| USA (ANSI B7.1) | 1.5x | Efficiency Focused: Relies on machine guarding and operational procedures. |
Abrasive Selection Guide
Selection of grains (A, WA, AZ, etc.) based on material hardness and grinding precision.
Warning Symbol Interpretation
Standardized safety icons for safe operation and protection guard usage.
When deploying Fuji high-performance tools in overseas markets, ensure that the regional power grid frequency and voltage match the tool specifications. To maintain the superior burst speed safety of Fuji wheels, store abrasives in a dry, temperate environment. Humidity can degrade the resin bond, potentially lowering the wheel’s resistance to centrifugal forces.
Fuji products are manufactured following strict Japanese standard process requirements. Every wheel is engineered to meet or exceed JIS (Japanese Industrial Standards), such as JIS R 6242 and B 4051. Our core engineering logic prioritizes maximum operator protection by maintaining safety factors and burst speed capabilities that often surpass the highest industry benchmarks.
| Standard Region | Safety Factor (Burst Multiplier) | Safety Logic & Benchmark |
|---|---|---|
| FUJI (High Precision) | > 2.0x | Engineered to exceed JIS requirements for maximum reliability. |
| Japan (JIS R 6242) | 2.0x | Extreme Safety: A wheel rated at 80m/s must withstand a 160m/s burst test. |
| Europe (EN 12413) | 1.73x | Risk Balanced: Provides high safety redundancy for most industrial apps. |
| USA (ANSI B7.1) | 1.5x | Efficiency Focused: Relies on machine guarding and operational procedures. |
Abrasive Selection Guide
Selection of grains (A, WA, AZ, etc.) based on material hardness and grinding precision.
Warning Symbol Interpretation
Standardized safety icons for safe operation and protection guard usage.
When deploying Fuji high-performance tools in overseas markets, ensure that the regional power grid frequency and voltage match the tool specifications. To maintain the superior burst speed safety of Fuji wheels, store abrasives in a dry, temperate environment. Humidity can degrade the resin bond, potentially lowering the wheel’s resistance to centrifugal forces.
