Features

S. Vario Abrasive
S. Vario wheels use a special abrasive made by surface and heat-treating various grains like alumina ceramic or monocrystal. These wheels achieve strong abrasive retention with minimal bond, provided the bond melts at a higher temperature and combines well with the abrasive. The high grain gripping strength allows for higher porosity, enabling efficient grinding with low heat.
Characteristics
S. Vario wheels offer high-efficiency grinding for all types of steel, resist chip loading, and improve grinding performance with longer dressing intervals.
Applications
Used in SCM material centerless grinding, angular grinding, high-speed steel groove grinding, and stainless steel cylindrical grinding.

Example Applications

Piston Shafts
Centerless grinding infeed

Stepped shafts
Cylinder angular grinding

Gear shafts
Cylindrical angular grinding

Features

NX / NX2
A new type of aluminum oxide, NX grain, consists of a very small polycrystalline microstructure.Conventional aluminum oxide fuses and remains mostly monocystalline, whereas NX uses a different composition.
Owing to its polycrystalline microstructure, only a small volume of the grit wears away under grinding forces.
The grit maintains its sharpness and gives above 4 times the life of conventional wheels, which offers dramatically longer life, better performance, and higher productivity.
The monocystalline aluminum oxide added to the special ceramics causes NX2 grain to fracture easily.Therefore, the grit maintains its sharpness as NX grain. It offers good performance and much lower grinding cost.

Features

The BH Bond wheels use a modified resin that gives them higher elasticity and improves both grinding performance and surface quality. This elasticity increases abrasive retention, lowers grinding force, prevents burns, and boosts the grinding ratio by reducing wheel wear.
Characteristics of BH Bond
BH Bond wheels absorb more vibration under heavy load, reduce wheel wear, extend wheel life, and maintain consistent surface quality.

Example applications

Features

Functional wheels for soft materials
Non-ferrous metals grinding such as inconel, aluminum, titanium, copper or zinc alloys causes wheel loading and thus short dressing interval.
NEOVEX wheels use special abrasives and a moderately friable bond, so they avoid chip loading even when grinding soft materials. They also work well on non-metallic materials and show strong performance when grinding hard rubber, FRP, and similar materials. They adequately support various needs.

Characteristics

Wheel loading prevention
Aluminum, copper alloys such as brass and titanium alloys grind without wheel loading
Less grinding heat
When you grind hard rubber rolls cylindrically, you keep the rubber temperature low to prevent thermal degradation and thermal alteration.

Centerless grinding : stainless steel , brass shafts
Cylindrical grinding : hard rubber rolls
Creep feed grinding : turbine blades (Inconel)
Various types of precision grinding : copper, aluminum , titanium alloys.
Lead Screws (Brass) Centerless Grinding

Rubber Rolls Cylindrical Grinding

Turbine Blades Creep Feed Grinding

Features

Fortas Grinding Wheels
A group of ｗheels manufactured using NX, NX2, SV or NW abrasive and high-performance bond to radically improve the wheel performance.
Experience Strong and Wear Resistance!
Realizes 50% higher strength (as compared with conventional bonds).
Wheel wear is controlled to improve the grinding force.
Especially useful for high-load grinding, which needs to prevent increasing corner radius and wheel wear.

Characteristics

Dressing interval extension
Can be extended by 20-50% as compared with conventional bonds.
Prevents grinding burns
The specified bonding force can be obtained at lower bond content.
Increases porosity
Prevents grinding burn, improves the surface quality and reduces work affected layer.

Applications

Groove grinding, angular grinding, crank grinding, screw grinding,etc
Useful for good profile holding type of high-efficiency grinding

Customer’s request

Lower grinding force
Easy dressing
Excellent profile holding
We have developed a MELIOR bond.

Feature of the MELIOR bond

This new bond has a strong gripping strength of grain and optimal strength.
The grinding force is lower and the work has excellent surface integrity.
We shorten the dressing time and reduce dresser wear.
We achieve greater edge retention and increase the grinding ratio.

Example

Features

Special single layer metal bond
Wheels with super abrasive grains fixed with a special single layer metal bond. As they are chemically bonded, they have an extremely high adhesive strength.
Because of a higher abrasive retention force, adding a small quantity of special metal bond increases the grain protrusion (doubled as compared with that of electroplated). It also controls the abrasive grain arrangement in an unrestricted manner.
The Capio wheels prove excellent sharpness and longer service life under various grinding conditions and permit accurate, efficient grinding

Main Characteristics

1) Higher abrasive retention force
A higher abrasive retention force has been realized with the use of a special metal bond. It also ensures a higher grain protrusion.
2) Variety of grain density
The Capio wheels can be manufactured with a variety of grain density to have a very close arrangement as seen with electroplated wheels or a rough arrangement with grain intervals several times as large as the grain diameter.
3) Accurate, efficient grinding
With the larger grain protrusion and optimum grain density, grinding with sustainable sharpness can be realized without clogging. Especially for soft materials such as aluminum, accurate, efficient grinding is possible.

Features

The SP wheels are CBN bonded wheels developed for compression springs surface grinding of disc type grinding (double disc surface grinding)
The SP wheels prove excellent grinding performance with the special bond and solve problems in the springs business world.
In addition, they open a way to full automation and lower personal expence.

Characteristics

1. No dressing
Dressing is not necessary with its sharp edge that doesn’t load.
2. Reduced the inspection charge of spring load and free length.
As compared with conventional wheels, the SP wheels are only worn to about one hundredth, The spring load and free length have been constanted. Therefor it greatly saves the inspection time.
3. Vastly reduced wheel turnorver rate.
Because of longer wheel life, the wheel turnover rate can be reduced to a tenth or less.
4. Adapted various materials
SP wheels grind excellent sharpness both steel wire and stainless steel wire. Wheels no longer need to be replaced depending on the materials..
5. Clean operation
Almost few fine particule of grinding wheels, the work environment is comfortably improved.
Coiling surface grindineg for compression springs

Snap ring surface grinding

* The CBN abrasive, manufactured with the ultra-high temperature/pressure technology, is the hardest material in the world after diamond. It is twice as hard as conventional grain WA and GC and help maintain sharp edges to realize efficient grinding.

Features

Heat-resistant resin bond wheel
Tufflex wheels are high-performance wheels made of polyimide resin specially modified by us for super abrasive wheels to ensure excellent sharpness and durability at the same time.

Tufflex wheel ultra-heat-resistant resin
1. Strength does not decrease when hot. In bending strength tests while heated, phenol resin fell to 30% of its room temperature strength when heated to 300°C, while Tufflex maintained 70% strength.
2. Tufflex has a higher heat deformation temperature than phenol resin.
3. Tufflex demonstrates high gripping strength of grain while grinding.

Features of Tufflex Bond

High performance grinding
Efficient grinding is realized by the excellent sharpness ensured by strong gripping strength of grain and the use of a heat-resistant bond that has a hither heat deformation point and does not degrade in strength when hot.
Excellent Profile Holding
Demonstrates particular efficiency in grinding requiring profile holding due to excelling durability.
Excellent wheel life
Greatly improved wheel life due to excellent durability.

Application CBN Wheels

Bonds

Sintered Alloy
Nippei vertical spindle surface grinder – wet (water solution)
Wheel speed: 16 m/s Work speed: 35 m/min Depth of cut: 0.20 mm
Wheel: CBN 80 R 125 TPT87 6A2 40D x 35T x 5W x 3X

Die steel
Okamoto surface grinder – wet (water solution) creep grinding
Wheel speed: 30 m/s Work speed: 120 mm/min Depth of cut: 1.5 mm
Wheel: CBN 140 M 125 PT82 1L1 200D x 10T x 31.75H x 3X

Applications Diamond wheel

Bonds

Example Applications
Carbide
Makino Seiki wet (oil-based) drilling groove grinding
Work: φ6 mm (Grinding length 80 mm) Removal stock: 2.5 mm
Wheel speed: 25 m/s Work speed:70mm/min Depth of cut: 2.5 mm
Wheel: SDC 270 P 125 PT81 14FF1 150D x 10T x 31.75H x 6U x 5X

Alumina
Washino surface grinder – wet (water solution)
Work: 30 mm x 10 mm x 25 mm Removal stock 0.1 mm
Wheel speed: 25 m/s Work speed: 10 m/min Depth of cut: 10 µm
Wheel: SDC 230 N 100 PT81 14A1R 200D x 25T x 31.75H x 3U x3X

Features

The Cera Bora wheel uses a special fine ceramic that increases porosity and strengthens grain retention. You can true and dress it easily, so it works well on automated grinding lines, groove grinding, and camshaft grinding.
Meanwhile, CBN grains form under extreme heat and pressure. With hardness just below diamond, they outperform aluminum oxide and silicon carbide, keep edges sharp, boost machine efficiency, and stay stable with Fe, Ni, and Co. As a result, CBN reaches its best performance when grinding steel alloys.
In addition, this product uses a unique fine ceramic bond that firmly holds chemically bonded CBN grains. It also delivers strong cutting performance by adjusting pore size and quantity for each grinding condition. Moreover, it offers easy dressing thanks to its rigid, porous structure. Finally, its design flexibility supports precise manufacturing and customization for various grinding applications.

Applications

GRAINS

CBNO: For sharper, more aggressive cutting edges that regenerate quickly without developing dull, wear-flat areas.
For greater wear resistance, longer wheel life, and controlled fracture.CBNO
Lower power consumption: Lower work piece temperature and longer tool life. Tighter work piece form tolerance.
Shaper more durable cutting edges：Higher grinding efficiency
BOND

CONCENTRATION

Features

Cera Dia Wheels
High-performance, porous wheels with diamond abrasive, which has the highest hardness of all materials and ensures excellent sharpness and wear resistance, retained with a rigid, fine ceramic bond.
Increasingly advanced grinding technologies require higher grinding accuracy and greater adaptability to hard-to-grind materials. In addition, there has been a demand for cost reduction through automation and unmanned operation. The Cera Dia wheels make the most of diamond abrasive characteristics to meet those requirements

Characteristics

1．Higher retention force
Our ceramic bond strengthens the chemical bond with diamond grains and keeps them firmly anchored.
2．Sustainable sharpness
The porous structure delivers sharp cutting, high rigidity, and easy dressing, enabling accurate, efficient grinding with minimal distortion or dressing.
3．Adaptable to various materials and conditions
We adjust fillers such as alumina and silica carbonate to match different materials and grinding conditions.
4．All products made to order
We design each wheel to fit the customer’s specific application.
These advantages allow Cera Dia wheels to excel in medium- to fine-finishing, cut overall grinding cost, and support mirror grinding of ferrous metals.
Bond
Engineers select the optimal bond based on the operating conditions.

Concentrations
Generally used concentrations:

Data
Work material :Silicon Nitride (5% Yttria, 5% Alumina, Weibull coefficient 11.8)
Wheels:
Cera Dia SD 200 concentration: 100 CRD1
Resin SDC 200 concentration 100 B (competitor)
14A1 200D×20T×50.8H×10U×3X
Grinding method: Wet, up cut plunge grinding (Okamoto Machine Tool Works CGM-63)
Grinding conditions:
Wheel speed: 40 m/s
Depth of cut: 2 – 20 µm
Table speed: 12 m/min

Applications

Engineers optimize the abrasive, bond, filler, and porosity, and select the appropriate grade and concentration, to adapt Cera Dia wheels effectively to a wide range of grinding styles and materials based on many grinding cases.
Super-fine abrasive grinding
In recent years, industries have increased their requirements for surface quality and grinding accuracy, creating a need for grinding wheels with super-fine abrasives. Among all super-fine grinding wheels in the world, the Cera Dia wheels ensure efficient, accurate grinding with its excellent sharpness and sustainability. They are also useful in transitioning from loose to fixed abrasive.
Example 1

Example 2

Vertical spindle parallel-surface honing / lapping
The excellent sharpness and durability of Cera Dia wheels significantly reduce grinding costs by boosting efficiency and extending dressing intervals, even when operators run the wheels at lower speeds in vertical-spindle double-sided grinding.They are especially useful for thin products. Example 1

Example 2

Example 3

Surface grinding
Users apply Cera Dia wheels to ceramics and also use them to grind cemented tungsten carbide and steel simultaneously. They are particularly effective for thin workpieces that require high sharpness.
Example 1

Example 2

Example 3

Tool grinding
The Cera Dia wheels are suitable for higher efficient, accurate grinding of cutting tools. Manufacturers use them for grinding PCD, PCBN, ceramics, and other hard materials.
Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Cylindrical grinding
Cera Dia wheels grind cemented tungsten carbide and steel simultaneously and also handle various ceramics effectively. Their sharpness makes them especially useful for thin products that require precise grinding.
Example1

Internal grinding
The wheel achieves excellent finishing accuracy and grinding efficiency through its high rigidity and sharpness.
Example1

Features

New Bond Wheels
Uplas wheels are high-performance wheels using a compound bond manufactured by sintering special ceramic and metal bonds with our original technology. Uplas wheels take advantage of extremely sharp ceramics bond and a metal bond with extended wheel life.

Characteristics of Uplas Bond

High performance
Excellent sharpness and longer wheel life are realized by the strong abrasive retention and moderate fructure of the bond.
Wide rang of applications
The bond strength can be adjusted over a wide range to adapt the wheel to a variety of materials and grinding conditions.
 Easily Truing/Dressing
Truing with WA or GC wheels is twice as efficient and dressing with them is five or more times as efficient as with resin bonded wheels, increasing production capacity

Types of Bond

Application

High-speed steel
NC tool grinder Makino CNR-60
Creep grinding – wet (straight oil)
Wheel speed: 24 m/s
Work speed: 20 mm/min
Depth of cut: 4 mm
Wheel: CBN 140 R 125
FUB75
1F1 75D x 12T x 20H x 10X

Types of Bond

Applications

Cemented Carbide

Mitsubishi CNC cylindrical grinder A32-P
Cylindrical grinding
Wet (oil)
Improved stock removal rate 20%
Work diameter:16 mm
Stock Removal: 0.04 mm
Wheel speed: 30 m/s
Work speed: 15 m/min
Feed speed: 330 mm/min
Depth of cut: 20µm
Wheel: SD 800 N 100 UB75
Cermet

Makino C-40 Automatic Wet (water solution)
Creep grinding
Work Chip breaker
Feed speed: 15 mm/min
Depth of cut: 0.5mm
Wheel speed: 28 m/s
Wheel: SD 600 L 100 UB75
1A1 100D x 10T x 20H x 5X
Alumina
Okamoto surface grinder
Wet (water solution) traverse grinding
Wheel speed: 33 m/s
Work speed: 16 m/min
Feed speed: 20 mm/pass
Depth of cut: 10 µm
Wheel: SD 140 T 100 KUB75
1A1R 450D x 40T x 127H x 5XSilicon nitride
Centerless grinder Chubu Machinery Works
Wet (water solution)
Wheel speed: 25 m/s Feed speed: 17 mm/min
Depth of cut: 0.5 mm
Wheel: SD 120 T 125 KUB75
9A1 200D x 60T x 32H x 5X

Features

Glass grinding wheel
New diamond wheels modified Uplas bond, a composite of special ceramic bond and metal bond, specially designed for ceramics grinding such as quartz glass and soda glass.
Characteristics of Hybrix Wheels
When glass grinding, there are many ploblems they are rough surface finish and large scratches. They are caused sharpness decreases and wheel loading. There for this leads to increased dressing time and greatly decreases the work efficiency and wheel life. The new Uplas bond reduces wheel loading and keeps the wheel sharpness for longer to vastly reduce the dressing time and eliminate dressing completely, greatly improving work efficiency and stabilizing surface quality.

Applications / Types of Bond

* Other grain sizes are also possible (please apply to us)

Example Applications

Quartz glass
Vertical spindle surface grinder with round table（Sanshin Seiki SPG-750）
Wet (Water solution）
Allowance: 0.3mm Flatness: 5µ
Surface quality: Microscope (visual inspection)
Wheel speed: 15 m/s Work speed: 1 m/min
Depth of cut: 0.001 mm/s
Wheel: SD 1000 O UB73G 6A2M 350D x 75T x 250H x 5W x 5X

Soda glass

Vertical spindle surface grinder with round table （Ichikawa Grinder Mfg.）
Wet (Water solution)
Allowance: 0.1mm Flatness: 1µ Surface finish : Ra 0.4
Wheel speed: 10 m/s
Rough grinding Depth of cut: 20µ
Precision grinding Depth of cut: 4µ
Wheel: SD 1500 P UB73G 6A2M 250D x 60T x 80H x 10W x 10X

Features

Grinding Wheels for Cermet
Salios is a new kind of diamond wheel made especially for cermet applications, based on Uplas bond; a composite of special ceramics bond and metal bond.
Characteristics of Salios Wheels
The conventional wheel soon loads, consequently spoils its sharpness and results in burn marks and cracks in cermet grinding. This problem increases the need for dressing and significantly decrease the wheel life and efficient grinding.
The Salios wheels, which use new Uplas bond, are resistant to loading and dull sharpness, which radically decreases the
need for dressing, stabilizes the surface quality and significantly improves the efficiency.

Range of Bonds

*Other grain sizes are possible in a case

Example Applications

Chip breakers grinding
Horizontal spindle surface grinder- Tool grinder (Makino)
Wet (water solution) Stock removal: 3 mm
Wheel speed: 18 m/sec Work speed: 12 mm/min Depth of cut: 3 mm/pass
Wheel: SD 600 J UB75M 1A1BR 100D x 10T x 38.1H x 3X

*Purpose of dressing: To restore the wheel to its original shape and remove loading.

Hybrid Metal Bond Wheel

Grinding wheels one step closer to the ideal have been developed in pursuit of ideal grinding!
We have succeeded in developing a hybrid metal bond that maximizes the abrasive performance. It ensures an amazing grinding performance.

Example applications

Carbide (K-10)
Plunge grinding with surface grinder Wet type （solution）
Wheel Dimensions: 3A1 150D x 10T x 50.8H x 5U x 3X
Wheel Speed:20 m/s Feed: 18 m/min Depth of cut:20µm
Test Wheel: SD 200 N 100 BX
Compared with: SDC 200 N 100 PT （Tufflex）
The grinding force required by Bonulex is a half of that required by conventional wheels and the grinding ratio obtained with Bonulex is about ten times as large as that obtained with conventional ones. Bonulex is much superior in sharpness and service life therefore able to increase the depth of cut and feed rate.
SCM
Groove grinding of automotive parts
Grinder: Ｓｐｅｃｉａｌ ｐｕｒｐｏｓｅｄ ｍａｃｈｉｎｅ ｔｏｏｌ
Wheel Dimensions: 14A1 200D x 10T x 50.8H x 5U x 3X
Wheel Speed: 30 m/s
Work Feed: 1.5 mm/min
Depth of cut: 3.5 mm
Test Wheel: CBN 140 N 100 BX
Compared with: CBN 120 (competitor’s metal bond)
While conventional wheels only lasted for a month, the BX wheels could be used for five months under the same conditions with no need for dressing.

Applications

1. Ｈｅｖｙ cutting is permitted by a lower grinding
resistance.
2. The efficiency has been improved by the increased
grinding speed.
3. Superior in profile ｈｏｌｄｉｎｇ ability

Features

Evolved Super Fine Grinding
Conventional wheels load quickly and lose efficiency. Operators try to improve performance by dressing the wheel, but this causes heavy wear. To overcome these issues, we developed the Nanoera wheel.
We engineered Nanoera using our high-dispersion mixing technology, which minimizes cohesion of sub-micron abrasive grains and optimizes particle arrangement to prevent loading. When loading starts, the wheel’s self-dressing mechanism automatically forms the ideal grinding surface for each condition and material.
As a result, Nanoera cuts unnecessary wheel wear, avoids long grinding under loading, and greatly improves cost efficiency.

Characteristics of Nanoera

We disperse sub-micron particles uniformly, reducing chipping and scratching.
The wheel breaks loading during grinding, maintaining stable efficiency.
We arrange abrasive particles to promote natural self-dressing, enabling no-dressing grinding and extending wheel life.

Mesh size

Application

Grinding wheel SD #30,000
Machine infeed rotary grinding machine
Grinding rate 1μm/min Ra 1nm TTV 1μm machine emovale 5μm
* Grinding mechanism is continually grinding by the set stock removal