FUJI’s premium 105mm and 125mm zirconia grinding wheels combine compact handling with efficient metal removal for stainless steel fabrication, weld clean-up and general metalworking.
JITAN means “time saving.” Developed as FUJI’s flagship grinding wheel range, JITAN combines fast metal removal with light-pressure handling for productive everyday metalworking. These compact 105mm and 125mm grinding wheels are 100% made in Japan, bringing premium abrasive technology to stainless steel fabrication, weld finishing, repair work and confined-access grinding.
Selected zirconia alumina abrasive, premium phenolic resin and work with FUJI’s Japanese warm-press process and distinctive laminated construction. The result is a wheel designed to balance self-sharpening, wear resistance, flexibility and heat management. Choose the diameter to match your grinder and the thickness to suit the workpiece, rather than using one specification for every job.
FUJI JITAN grinding wheel in use.FUJI’s warm-press process, also referred to as hot pressing, brings the phenolic resin and abrasive together under controlled warmth. Material distribution and an even pore structure support consistent grinding behavior. JITAN’s distinctive layers can be seen at the wheel edge; this construction is an important part of its flexible grinding feel.
The zirconia-based abrasive renews its working surface as grains fracture and worn grains are released. The P grade describes how firmly the bond retains the abrasive grains, not the hardness of zirconia itself. This balance helps maintain cutting action without relying on excessive operator pressure.
The resin distribution, pore structure and layered surface help manage grinding heat. This is especially useful for stainless steel and thin sheet where localized heating can cause discoloration or distortion. Keep the wheel moving and use suitable contact pressure; thickness, dwell time and workpiece support still affect the result.
JITAN is designed to cut with a light, controlled touch, reducing the need to force the grinder against the workpiece. Its flexible feel and controlled abrasive wear support smooth handling, reduced rebound and less loose grinding debris. The compact diameters are useful for weld access, corners and smaller fabricated components.
Lower visible dust or vibration does not establish safe exposure levels or prevent occupational disease. Use suitable extraction, protective equipment and the wheel and grinder instructions.
Watch the existing customer demonstration to see JITAN’s handling and grinding action in use. Operator experience varies with the wheel specification, grinder, workpiece and technique.
FUJI compared a 105 × 6mm JITAN wheel with another company’s zirconia grinding wheel of the same size. Each reported comparison lasted 20 minutes. On SS400 steel, JITAN removed 2.29 times as much material; on SUS304 stainless steel, it removed 1.32 times as much material.
| Workpiece | Wheel | Metal Removed | Wheel Wear | Removal / Minute | Mass-Based G-Ratio |
|---|---|---|---|---|---|
| SS400 steel | JITAN | 1,235g | 50g | 61.75g/min | 24.70 |
| SS400 steel | Comparison wheel | 540g | 69g | 27.00g/min | 7.83 |
| SUS304 stainless steel | JITAN | 531g | 49g | 26.55g/min | 10.84 |
| SUS304 stainless steel | Comparison wheel | 403g | 68g | 20.15g/min | 5.93 |
G stands for grinding. In these factory results, the mass-based grinding ratio is metal removed divided by wheel mass lost (g/g). A higher value indicates more metal removal per gram of wheel consumed. It is distinct from a volume-based grinding ratio.
These figures describe the reported 20-minute factory comparisons, not a universal speed or service-life guarantee. Results depend on equipment, material, pressure and working conditions; they do not establish the performance of every competing wheel or other JITAN sizes.
A compact choice for smaller components, weld clean-up and confined working areas. Match the wheel diameter, bore and marked speed to a compatible grinder.
A practical balance of working coverage and manageable size for stainless steel fabrication, general steel grinding and maintenance tasks.
| Diameter | Thickness | Bore | Inner Box / Carton |
|---|---|---|---|
| 105mm | 3 / 4 / 6mm | 15mm; 16mm on request | 25 / 200 pieces |
| 125mm (5-inch) | 3 / 4 / 6mm | 22mm | 25 / 100 pieces |
Confirm the exact diameter, thickness, bore, marked maximum speed and packaging before ordering. For larger applications, 150mm (6-inch) and 180mm (7-inch) JITAN wheels can also be supplied.
Consistent grinder performance helps the abrasive work effectively. Explore FUJI’s durable angle grinders and select a model compatible with your wheel’s diameter, bore, mounting arrangement and marked maximum speed. Grinder power and control should suit the task; avoid using additional force as a substitute for a suitable tool.
P is the wheel bond grade: it describes the bond’s ability to retain abrasive grains. It does not describe the mineral hardness or grit size of zirconia. JITAN uses this grade as part of its balance of cutting action, abrasive release and grinding feel.
Choose the 3mm option for controlled grinding on thin stainless steel. Keep passes light and moving, support the workpiece and check the finish. The 6mm option is suited to general fabrication and stock removal; ask about 4mm where an intermediate specification is preferred.
No. In the reported 20-minute 105 × 6mm comparison, JITAN removed 2.29 times as much SS400 steel and 1.32 times as much SUS304 stainless steel as the comparison wheel. These results should not be applied to all materials, grinders or sizes.
Check the exact diameter, bore, guard and mounting arrangement. The grinder’s speed must not exceed the wheel’s marked maximum operating speed. A 105mm wheel is not automatically interchangeable with a 100mm wheel; ask FUJI to confirm the specification for your equipment.
Provide the workpiece material and thickness, grinding task, grinder model and speed, required wheel diameter and bore, and expected quantity. Include the current wheel and the improvement you need, such as shorter grinding time, better surface control or reduced wheel consumption.
FUJI specializes in abrasive wheels and industrial grinding equipment. JITAN represents its premium, Japanese-made approach to combining abrasive performance with practical operator handling. Compare JITAN with other FUJI grinding wheels and discs to select the right solution for your production needs.
Discuss a 105mm or 125mm JITAN specification for your workpiece. Send your material, thickness, grinder model, required wheel size and quantity for product selection and a quotation.
Need advice on pairing your wheels with Kosoku angle grinders? Our team can help.
Contact Our Experts TodayChoosing 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.
