Last Updated： Aggregation Period:Mar 18, 2026～Apr 14, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Mar 18, 2026～Apr 14, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Mar 18, 2026～Apr 14, 2026
This ranking is based on the number of page views on our site.
391～420 item / All 3026 items
Glass apparatus for physical and chemical experiments - air cooler
It is a cooler used for substances with a high boiling point. It is also used as a conduit for connecting devices.
Glass apparatus for physical and chemical experiments - Methoxyl group measurement device
It is a dedicated device for measuring the reactions of methoxy groups.
Glass apparatus for physical and chemical experiments - Keten lamp device
This is a device for the generation of ketene through the thermal decomposition of acetone.
Glass apparatus for physical and chemical experiments - cock and exchange valve
Here is an introduction to the lineup of valves corresponding to the various types of faucets.
Chemical and physical experiment equipment solvent pump system
This is a solvent pump system designed with a simple structure for the purpose of being used freely.
Glass apparatus for physical and chemical experiments - distillation apparatus
This is a systematized version of the equipment illustrated in the section on "JIS K0102 1981 Cyanide" of the factory wastewater testing method. It can be converted to other devices, allowing for efficient and economical use.
Glass lathe for physical and chemical experiments
Based on actual experience in glass processing technology, this is a glass lathe designed and manufactured in-house, literally made for the items we use.
Glass apparatus for physical and chemical experiments: ventilation device and hydrogen sulfide generation absorption device.
We introduce products for ventilation devices and hydrogen sulfide generation and absorption systems.
Glass apparatus for physical and chemical experiments - distillation apparatus
This is a systematized version of the equipment illustrated in the section on "JIS K0102 1981 Fluoride" of the factory wastewater testing method.
Glass apparatus for physical and chemical experiments - mercury decomposition device
This is a device for detecting mercury contained in food, water, and other substances by decomposing organic matter with acid and concentrating the sample.
Concentration device for physical and chemical laboratory glassware
It is used for the concentration of extracted solvents. The use of a Schneider column prevents the evaporation of sample components, making it a highly efficient concentration device.
Koyama Manufacturing's glass equipment for physical and chemical experiments! It's a distillation apparatus.
The fluorine ion water vapor distillation device "JSF2" is a distillation apparatus that systematizes the device exemplified in the factory wastewater testing method "JIS K0102 1981 Fluorine." It comes in a single unit that includes only the glass part, along with a frame and either a burner or an electric heater, as well as a lineup of three types: a 5-unit gas type and a 5-unit electric type. Please choose according to your usage needs. 【Features】 ■ Three types available ■ Gas and electric types offered *For more details, please refer to the catalog or feel free to contact us.
Manufacturing and sales of diamond and CBN tools.
Manufacturing and sales services of diamond and CBN tools.
60 years of trust and achievements to meet any user needs! Includes tips on how to use wheels effectively.
This catalog introduces the "Diamond Profile Wheels" that our company handles. It includes information on profile grinding, types of wheels, grain sizes, angles, and tip strength, as well as finishing surfaces and tips for using the wheels effectively. With 60 years of trust and achievements, we meet any user needs. 【Contents (excerpt)】 ■ What is profile grinding ■ Bond ■ Types of wheels ■ Grain size ■ Processing groove dimensions *For more details, please refer to the PDF document or feel free to contact us.
For flat grinding processing of glass, ceramics, metals, and resins!
It can be easily attached and detached to a magnetized flat plate. Compared to conventional free abrasive (grinding sand) grinding processes, it can be processed with stable precision. Precision management is easier compared to free abrasives, leading to improved productivity. There is no wear on the flat plate, so replacement of the flat plate is unnecessary. It significantly reduces waste compared to conventional free abrasives (grinding sand). Since there is no scattering of free abrasives (grinding sand), a clean processing environment can be achieved.
Introducing how to minimize mistakes and press the edit button without hesitation.
To all of you using double-sided and single-sided polishing machines, or using machines to polish items! After pressing the processing button, don't you sometimes feel anxious? What can we do to minimize mistakes? And how can we press the processing button without hesitation? The answer is information. First, let's focus on the preliminary stage of the five senses. After pressing the processing button... we look at the numbers. As an initial check, we first confirm whether the values obtained are stable. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.*
Are you struggling with the drying and adhesion of colloidal silica? Let me introduce some alternative solutions.
Colloidal silica is an excellent polishing agent for final polishing and is used for finishing a wide range of materials such as optical glass, quartz glass, filter glass, and crystals. However, it is also true that due to the nature of colloidal silica, great care must be taken to avoid "drying and adhesion." In fact, there are already movements to find alternatives to colloidal silica as a countermeasure against drying and adhesion. *For more details on the column, please refer to the related link. For further inquiries, feel free to contact us.*
"The power of awareness" is not about sense or talent! Let's think about it in everyday terms.
Hello! This is Grinding and Polishing Dot Com! The other day, something happened on-site. The video below is the sound of the machine at that time. *Sound will play. Did you notice the unusual noise? At this point, we don't know: "What's wrong?" "Is it really an abnormal sound?" "Is it just rubbing?" One thing is clear: it is "different from usual." Such daily troubles? happen every day, and while there are countless things we want to investigate, various events occur daily, making it hard to keep up. This is not just for us; isn't it the same for everyone in their daily work? We are barely managing our daily tasks. When it comes to noticing something "extra," it becomes quite difficult. This time, I would like to delve into that "ability to notice"! *You can view the detailed content of the article through the related link. For more information, please feel free to contact us.
The mechanism of how light "bends"! An explanation of glasses and contact lenses.
This article explains the refractive index and Abbe number. In the world of optics, terms like "refractive index" and "Abbe number" often come up. I have a general understanding of them, but if asked whether I truly understand, I would say it's a bit unclear... So this time, I want to gain a solid understanding! *For detailed content of the article, you can view it through the related links. Please feel free to contact us for more information.
Not only the difference in grit size = difference in particle size, but it is easier to organize when viewed as a composite design of abrasive grains + bond!
Last time, I talked about the "test of abrasive grain protrusion height." This time, I took a little break and reflected on the "differences in grit size." I will summarize what is generally said about grit size and share my observations from hands-on experience in the field! *You can view the detailed content of the article through the related links. For more information, please feel free to contact us.*
The main factors are "air," "oil," and "specific gravity"! We will introduce countermeasures.
In coagulation treatment, flocs (aggregates) are supposed to settle down, resulting in clear supernatant water. However, in practice, there can be issues where flocs rise to the surface during processing or after standing. This article will introduce the factors and countermeasures for flocs floating in coagulation treatment. *For detailed content of the article, you can view it through the related links. Please feel free to contact us for more information.*
Abrasive grains can be regenerated multiple times through re-electroplating! The cost performance is also good.
We propose high-precision custom tools designed in-house. The diamond/CBN tools developed specifically for the KIP series are designed and managed by experienced technicians to match your processing requirements. (Note: Tools are not sold individually.) The abrasive grains can be regenerated multiple times through re-electroplating, providing excellent cost performance. With high abrasive grain retention strength, even high-hardness hardened steel can be cut with a depth of approximately 0.1mm in a single pass, depending on the processing conditions. Adjusting the tool diameter has also been made overwhelmingly easier. *For more details, please refer to the PDF materials or feel free to contact us.
![[Information] Setting the oversize amount for the tap to match the plating cost of the screw.](https://image.mono.ipros.com/public/product/image/2ef/2000415881/IPROS24085936972090460993.jpeg?w=280&h=280)
Overview and description of the product are included! A diagram for tap accuracy settings is also provided.
This document covers "Setting the Tap Oversize Amount to Match the Plating Cost for Internal Threads." It introduces the relationship between the plating thickness and effective diameter when plating internal threads, as well as the general setting procedure for plating taps and a precision setting consideration diagram for M6×1 plating taps. [Contents] ■ Relationship between plating thickness and effective diameter when plating internal threads ■ General setting procedure for plating taps ■ Precision setting consideration diagram for M6×1 plating taps (Plating thickness: 8–16μm) *For more details, please refer to the PDF document or feel free to contact us.
We will introduce the effects of oxidation treatment, the thickness of the oxide film, and processing time, among other factors.
This document covers "surface treatment of taps." Taps are subjected to suitable surface treatments based on the characteristics of various surface treatments and their respective applications. Here, we introduce "oxidation treatment." [Contents] ■ Oxidation treatment ■ Oxide film thickness and treatment time ■ Effects of oxidation treatment *For more details, please refer to the PDF document or feel free to contact us.
Explanation of effective diameter, thread angle error, pitch error, and thread gauges using diagrams.
Screws have a "fastening function" that tightens and a "feeding function" that delivers accurately, both of which are effective when the flank surfaces of the external and internal threads are in surface contact. This document explains the three factors that determine whether the flank surfaces are in surface contact: "effective diameter, thread angle error, and pitch error." Additionally, it includes measuring tools for determining the quality of screws, such as "thread gauges." Our company continues to propose product developments based on the materials being machined and appropriate usage methods for taps, dies, and center hole drills to establish safe screws. [Contents] ■ About effective diameter, thread angle error, and pitch error ■ About thread gauges ■ Comparison of ideal acceptable internal threads and unsafe acceptable internal threads *For more details, please refer to the PDF document or feel free to contact us.
We are providing a detailed response regarding "pipe taps" along with diagrams.
This document introduces "pipe taps." When machining Rc (PT) male threads with a pipe tapered tap, it discusses why "making the pilot hole tapered makes tapping slightly easier" and "issues that arise when the pilot hole is tapered." 【Contents】 ■ Consultation ■ Response ■ Explanation 1 - Pilot hole shape: When straight - Pilot hole shape: When tapered ■ Explanation 2 *For more details, please refer to the PDF document at the link below.
Introducing examples of machining when removing a broken spiral tap!
The "ITRD" is a tool designed for the quick removal of broken taps. Here, we present a machining example using a spiral tap. When a tap is twisted, the tap's land is wrapped around the internal thread, making it difficult to move even during removal, and it is less likely for fragments of the tap to come out during the process. 【Machining Conditions】 ■ Tap Size: SP M12X1.75 ■ Work Material: S50C ■ Tool Used: ITRD Dc8.5 ■ Rotational Speed: 450 min-1 ■ Feed Rate: 3 mm/min (Step 0.3 mm) *For more details, please refer to the PDF document or feel free to contact us.
Discharge the chips to the rear of the die to reduce chip-related issues.
The "Spiral High Die SP-D" features twisted chip holes, providing high chip discharge performance. It discharges chips to the rear of the die, reducing troubles. 【Features】 ■ Twisted chip holes ■ High chip discharge performance ■ Discharges chips to the rear of the die, minimizing chip-related issues *For more details, please refer to the PDF document or feel free to contact us.
It has good chip discharge, reducing damage caused by chip clogging.
The "Center Hole Drill" harmonizes the flow of chips from the cutting part and the counterbore part. It is designed with a groove shape that can sufficiently accommodate and eliminate these chips. Considering the strength of the drill, the length of the cutting part is kept to a necessary minimum, and to compensate for the weak point in strength at the junction of the cutting part and the counterbore part, there is an R at the junction within the back taper of the cutting part. There is also a rich lineup available. 【Features】 ■ Double-edged design with a spiral groove ■ Excellent chip removal, with less damage due to clogging ■ The length of the cutting part is kept to a necessary minimum ■ There is an R at the junction within the back taper of the cutting part ■ A rich lineup is available *For more details, please refer to the PDF document or feel free to contact us.
The adoption of special screws has strengthened the fastening force.
Various types of cutting edges can now be attached according to processing applications. By adopting special screws, fastening strength has been enhanced. The introduction of a conical surface has achieved high runout accuracy. Furthermore, by strengthening the fastening, high rigidity has been secured. 【Features】 ■ Various types of cutting edges can be attached according to processing applications ■ Fastening strength enhanced by the adoption of special screws ■ Achieved high runout accuracy ■ Secured high rigidity *For more details, please refer to the PDF document or feel free to contact us.
