TOP > News

News

The lid won’t open! Solution for stainless steel container lids that do not open.

Posted on by monovate

As you may have experienced if you have already used our stainless steel containers, the lid of the container may occasionally fail to open.

The most common cause is the difference in air pressure between the inside and outside of the container. When the temperature inside the container is cooler than when the lid is closed, the inside of the container becomes depressurized, and the lid will not open in any way.

This phenomenon has been introduced in a previous column, but this article focuses on the actual situation in which the lid fails to open due to the difference in atmospheric pressure and how to deal with the problem.

CONTENTS.

1. why does the lid stop opening in the first place?

2. how the lid looks when the contents have cooled down

3. how to open a stuck lid

4. summary

1. why does the lid stop opening in the first place?

When a container is filled with a liquid or other substance and then the contents cool down, the lid will not open. Again, this is caused by the difference in air pressure between the inside and outside of the container.

This is the same phenomenon that occurs in everyday life when the lid of a bowl becomes stuck.

 

As the inside of the container cools with the lid closed, the water vapor inside the container gradually cools and returns to water.

In addition to this, the air inside the container will lose its balance with the atmospheric pressure outside the container due to the property of air that its volume decreases as it cools.

 

Thus, the lid cannot be opened when it is pushed by a relatively strong force from outside the container.

2. Appearance of the lid when the contents have cooled

We actually tried to reproduce the phenomenon of being unable to open the lid.

First, fill our lever-band and catch-clip type containers about 1/7th of the water and bring it to a boil. Then, the lids are immediately closed and cold water is applied from the outside of the containers for about 10 minutes to cool them.

When the inside of the container is thus cooled, the lid is pushed with strong force from outside the container as explained earlier. If you actually look at the lid, you will notice that the center of the container is indented more than normal.
We placed a straight scale on the center of the lid to check the dent.

With this amount of pressure, the lid will not open even if you pull it forcefully. In the first place, it is not desirable to open the lid by force, since the contents may spill out.

3. how to open a stuck lid

So, how do you open the lid?

The following is an explanation for each lid shape.

For lever band type...

With the lever-band type, the lid can be opened by inserting a microspatula between the packing and the body, allowing air to enter the container.

Just as when opening the lid of a bowl, the lid will open if air is allowed to enter the container and the air pressure inside is equal to the air pressure outside. The details are described below, but unlike CTH, it is relatively easy to open the lid as long as you have a spatula.

Incidentally, the temperature of the contents (water) when the container was opened was 33.6°C.

For catch-clip type

In the case of the catch-clip type, its shape makes it difficult to open with a spatula. If you try to force it in, you may damage the packing or lid, or even the spatula itself.

If you want to open the lid of the CTH, heat the container to restore the air pressure inside the container. You can also wrap it in a warm towel or boil it in hot water, but this time we will heat it over an open flame.

In this experiment, the lid was closed immediately after boiling, so we waited for a while until the temperature reached that level. The lid did not move at the beginning of heating, but when we heard a rumbling sound from inside, the lid opened easily. Since the boiling point decreases in a depressurized state, the lid opened at 86.6℃.

Learn More

4. Summary

If you are having trouble opening an existing container, try one of the following methods

  • CTL (lever band type): Insert a spatula-like object to let air in.
  • CTH (catch clip type): Heat the container to the temperature at which the lid was closed to restore air pressure.

If you are planning to purchase a container from now on, you can easily open the lid by installing a valve or air vent hole on the lid. We can also provide the microspatulas mentioned earlier.

If there is a possibility of putting warm contents into the container, please consider these measures.

Pressure Vessel Classification in Japan

Posted on by monovate

A pressure vessel is a container intended to apply pressure to the inside of a vessel.
In Japan, pressure vessels are classified into several types according to their specifications and contents. Therefore, this column explains the standards for pressure vessels in Japan, focusing on First Class Pressure Vessels and Second Class Pressure Vessels.

Contents of this article

  • Pressure vessels are divided into First Class Pressure Vessels, Second Class Pressure Vessels.
  • The key point is whether or not gas is generated inside the vessel when pressure is applied.
  • Pay attention to laws and regulations, and do not neglect inspections.

Pressure vessels can be dangerous under pressure, so standards are established according to the magnitude and conditions of the pressure.
If they are not strong enough, serious accidents can occur. In Japan, the Industrial Safety and Health Act and Ordinance on Safety of Boilers and Pressure Vessels specify the structure of pressure vessels in detail.

Vessels are classified according to their size and the amount of pressure they handle, and some vessels require certification.
Classifications include First Class Pressure Vessel, Small-sized Pressure Vessel, Second Class Pressure Vessel, and (simplified) vessels.

続きを読む

Participated in the ACHEMA exhibition

Posted on by monovate

Participated in the ACHEMA exhibition

Nitto Kinzoku Kogyo exhibited at ACHEMA 2022 in Frankfurt, Germany.

The exhibition was held for five days from August 22 to 26, 2022.

Thank you for visiting our booth.

 

In the exhibition hall, our agitator and BEAG, which reduces foaming, attracted a lot of attention from our customers.

We will continue to send out information so that we can deliver our products, which consist of a stainless steel container and agitator as a unit, to our overseas customers.

 

We are looking for a distributor, and we are looking for a distributor who is interested in our products.

If you are interested in becoming a distributor, please contact us.

Products exhibited at the show

Many results in the pharmaceutical industry. What is the highest grade of electropolishing?

Posted on by monovate

What is electropolishing?

Electropolishing is a polishing method in which metal ions are eluted from the metal surface to smooth the surface.
This process adds functions to the metal surface such as “removing oil, buffing powder, and other contaminants” and “inhibiting the adhesion of microorganisms.
For stainless steel, it also increases the chromium concentration on the metal surface and improves corrosion resistance.

Electropolishing is essential for pharmaceutical manufacturers who seek to avoid contamination and corrosion resistance from the surface, from the perspective of GMP and validation.

Electropolished stainless steel has a slightly shiny black surface (tank in the center of the photo).

When electrolytic polishing is applied, the surface of the metal will melt in a wisp.
It does not melt so much that you can tell by touching it with your hand that it has become flimsy. The thickness of the surface is about 1/3 of a sheet of copy paper. (20 to 30 μm)

The surface is thinly melted to add functionality, so it may be easy to imagine it as “reverse plating”.

Advantages of Electropolishing

Electropolishing has the following advantages

  • Removes stains that cannot be removed by normal cleaning
  • Resistance to residual stains and easy removal of stains
  • Improves corrosion resistance and rust resistance

Removes dirt that cannot be removed by normal cleaning

This product can remove (degrease) oil stains from stainless steel rolled, pressed, or buffed after welding.

These contaminants are embedded in the intricately deformed surface of stainless steel and are difficult to remove by normal cleaning.
Electropolishing melts the stains from the convex surfaces to a smooth surface, allowing the stains to surface and be easily removed.

Image of the surface

Material Surface
(Rough surface)

Buffing surface
(buffing powder, oil stains)

Electropolished surface
(smooth surface without contamination)

Less likely to leave stains and easier to remove

It is not only when the product is new that it remains clean.

As you can see from the image above, the electropolished surface is very smooth and has a smaller surface area.
Compared to the buffed surface, where the surface is uneven and has many small gaps, the new surface remains clean and easy to remove dirt even after repeated use and washing.

In addition, research conducted by the U.S. Department of Agriculture has shown that electropolished surfaces are less likely to retain biofilm (a collection of microorganisms).

Thus, electropolishing can easily maintain hygienic metal surfaces.

Improved corrosion resistance and rust resistance

As with the opening sentence, electropolishing increases the concentration of chromium on the metal surface. This is called chromium richness, and the metal surface is then covered with a strong passive film, which improves corrosion resistance.

The passive film prevents the iron contained in stainless steel from combining with oxygen (i.e., rusting). This is inherent in stainless steel itself, but the chromium richness makes it stronger.

Disadvantages of Electropolishing

Electropolishing itself does not have any negative effects on metal surfaces, but it does have a secondary disadvantage (risk).

  • Expensive.
    In our case, the price is about 2 to 3 times that of a buffed container.
    There is a risk of electrolytic solution getting into the gaps.
  • It is necessary to consider the application of electrolytic polishing from the design stage, and to make a structure with a small number of gaps.

Are there different grades of electrolytic polishing?

Electropolishing has no direct disadvantages and is a good thing, but if the proper technique is not used, the desired effect may not be achieved.

Have you ever had any of the following problems with electropolished stainless steel containers?

  • The container cannot be used without repeated washing.
  • White tablets became dirty and blackish.
  • Red rust (rouge) occurred.

These phenomena are caused by insufficient electropolishing.
The difference is caused by the way electropolishing is applied.

As a stainless steel container manufacturer, we would like to introduce our commitment to electropolishing.

General Electropolishing Methods

Electrode plates are placed on both sides of an electrolytic tank containing electrolytic solution (a mixed acid solution of phosphoric acid and sulfuric acid), and the product is placed between them.
When the product is connected to the + electrode and the electrode plates to the – electrode, an electric current flows through the electrolytic solution and the product is electropolished.

This method is suitable for electropolishing small parts, but not for stainless steel containers such as those we handle.
Although it is desirable to apply electropolishing firmly to the inner surface, which is in direct contact with the contents, with this method, the electric current flowing to the inner surface is weak, which means that electropolishing can only be applied weakly.

How Nitto Kinzoku Kogyo Electropolishes for High Grade Finishes

Nitto Kinzoku Kogyo uses a method that allows for firm electrolytic polishing to be applied to the inner surface of the container.

The difference from the general method is in the electrode plate.
Electropolishing is performed using special electrode plates that are dimensionally matched to the inner surface of the container.
This allows for stronger and more uniform processing, and the container is finished by taking full advantage of the benefits of electropolishing.

We are able to provide dedicated electrode plates tailored to each container because we are able to perform the entire process of container design, production, and electropolishing.
This is the secret to Nitto Kinzoku Kogyo’s high-grade electropolishing.

We have delivered many electrolytic polishing products to pharmaceutical companies

Electropolishing certificates can be issued, please contact us.

Examples of electrolytically polished stainless steel products

Lean More
Lean More
Lean More

Essential for factory automation! All about Customizing Stainless Steel Containers

Posted on by monovate

In recent years, the trend toward automation (robotization/factory automation) has accelerated in pharmaceutical and cosmetics factories. In NITTO KINZOKU KOGYO, customers who want to use stainless steel containers in automated production lines are increasing rapidly, especially the requests of custom-made containers.

By customizing the stainless steel container according to the equipment and work to be used, you can take full advantage of the equipment’s performance and solve process problems.

In this column, we introduce customizations and products recommended for stainless steel containers to be introduced into the automation process.

How to Make Stainless Steel Containers "Easy to Handle" in the Automation Process?

To match the size of your needs

NITTO KINZOKU’s containers can be manufactured with a size that matches your work allowable size, storage space, input amount, etc. Our company works primarily with customizing height dimensions.

We can also customize the inner diameter of the container, but basically, we have to choose from the following sizes. We can also make the container of the original diameter if you would like to bear the corresponding cost such as making the mold from scratch.

Inner Diameter of our company Standard Lineup (mm)

180/210/240/270/300/330/360/387/430/470/565/635/770/1000

*Other sizes may be available. 

* The available sizes may also be limited depending on the container specifications.

To avoid interference

For example, you can customize the mounting position when the handle on the container interferes. If you don’t need the handle itself, you can choose “No Handle”.

To make it easy holding

When there is a lifting action

 

If you have an action like “ to lift the container and put it on a different pallet ”, you might want to customize it by attaching a bracket to the side of the container. The bracket can be designed to meet the specifications of the robot, so it can be held securely.

If there is no interference or other problems, you can install both a handle for people and a robot bracket.

* The handles on ordinary containers are designed to be handled by human hands and are not intended for use in robots or lifters.

When there is a grasping motion

If you have needs like “grab and flip ” handling action, you might want to customize it by machining ribs on the sides of the container. By processing the width and position of the rib according to the width of the arm and claw on the grip side, it is hard to shift and can be firmly grasped. Ribs also have the effect of increasing the strength of the container side.

The jacket can be attached to the outer surface of the container to customize the size to match the robot hand chuck.

Enhance the Stability

If the contents are heavy, the bottom of the container may swell outward, causing the container to shake and become unstable when placed or transported on a conveyor. In this case, customizing the bottom is recommended. For example, if you attach a “Skirt” to the lower part of the container, the bottom will not touch the conveyor and stability will be improved.

It can also be customized to reinforce the bottom by attaching a plate that matches the diameter of the bottom to the outside of the bottom. The bottom is hard to deform and stability is improved. It is also possible to raise the thickness of the container itself without using a reinforcing plate.

You can also customize the bottom by embossing it to increase its strength of the bottom. In addition to increasing the strength of the bottom to prevent it from bulging, the center of the bottom, which tends to bulge, does not come in contact with the conveyor, which improves the stability.

For Easy-Opening

Open by Just Lifting the Lid


If the lid is easy to open and close, it will be easy to be automated. It is recommended to customize the container based on a cover type container, rather than an airtight container with parts to fix the lid. The cover can also be customized with a handle or bracket that matches the robot hand.

Just turn the cap to open it!


If rotating (twisting) motion is possible, a container with a screw cap is recommended. Screws are mainly used in small-capacity bottles. It is also airtight compared to a cap lid.

How to Make Stainless Steel Containers "Easy to Wash" in an Automated Process?

Improve the cleanability of the inner surface of the container

It is recommended to apply electrolytic polishing to the inner surface of the container which directly touches the contents so that it does not get dirty easily. By electrolytic polishing, the inner surface of the container, the residue on the surface is removed and the surface becomes smooth, preventing dirt from sticking.

If you are handling highly viscous liquids, we recommend you to apply fluorine resin coating. It has features such as non-stickiness, which prevents most substances from sticking, and water repellency, which repels water and oil, and can remove dirt quickly.

Improve the washability of the outer surface of the container

There are many parts on the outer surface of the container, and it is a place where unevenness occurs after washing. The parts where dirt and cleaning solution are likely to remain can be customized in consideration of cleanability. Our company can propose sanitary specifications that are superior in cleanability.

For example, we recommend customizing the edge of the container with a curl seal (fully circumferential welding) that completely closes the gap. 

For the handle, we recommend a round bar handle (sanitary type) that can be sealed by welding all the mounting parts.

How to Make Stainless Steel Containers "Manageable" in the Automation Process?

Adding Laser Mark to the Container

Laser-marking is recommended because it is a printing method that does not peel off and does not disappear even after washing, and also prevents tampering. The original control number or QR code can be printed on the side of the container or on the lid.

Add a label pad

It is recommended to add a seal seat which is easy to peel off the label when the label is reattached after managing with bar code labels.

Add a card holder

If you use a paper card, we recommend adding a card holder to prevent it from getting wet and dirty.

Management with RFID
When managed by RFID, the container can be managed by attaching an RF tag. You can customize the container according to how the RF tag is installed.

Designed and manufactured stainless steel containers for automation and robotization

Please let us know the details such as the shape of the container you want, the usage, and the working condition. We will propose the most suitable stainless steel container for you. Please feel free to contact us for information such as product availability and quotation.

3 Concerns about Sterilization of Stainless Steel Products

Posted on by monovate

3 Concerns about Sterilization of Stainless Steel Products

Sterilization of clean containers is important in the manufacture and storage of cannabis and CBD products.

Stainless steel can be sterilized, but some stainless steel products can and cannot be sterilized.

Although there are various types of sterilization, this time we will introduce the case of sterilizing a stainless steel container (SUS 304/SUS 316 L) manufactured by Nitto Metal Industry by autoclaving (autoclave sterilization/121 °C for 20 minutes).

Please feel free to inquire about the sterilization of each product.

Contents

  • I’m looking for a rust and corrosion resistant container that doesn’t harm Cannabis.
  • To prevent contamination with CBD oil
  • be looking for a product that puts safety first
  • Looking for products that focus on functionality and Cannabis quality over cost

Can stainless steel products be sterilized?

As long as the product is made of all stainless steel (made of only stainless steel) and has no parts such as resin or rubber attached, sterilization in an autoclave is basically possible.

Do you have an image that stainless steel products are used in hospitals and laboratories?

Examples of Stainless Steel Products Requiring Confirmation of Sterilization

・Be equipped with resin components
・Comes with rubber parts such as packing
・have casters
・Be labeled

In such products, even though the stainless steel part can be sterilized, there is a possibility that the attached parts cannot be sterilized (for example, the heat resistant temperature of the parts is too low to be sterilized), so it is necessary to check beforehand.

Check the heat resistance of the product or contact our company.

The silicon packing ([PQA] [PQB] [PQL]) that comes with the standard our company stainless steel sealed container can be sterilized by steam.

Check the heat resistance of the product or contact our company.

What should I be careful about sterilizing stainless steel products?

・Remove parts that cannot be sterilized

・Remove the parts that can be removed so that it can be sterilized to every corner.

・Keep the container open (with the lid open) and put it in the sterilizer.

・Put small parts such as tools in a basket.

・Dry well after sterilization

Refer to the instructions for using your sterilizer.

Sterilize stainless steel products so they don't rust?

Stainless steel is not rustproof, but it is a rustproof metal, and it will rust if the rust condition is satisfied.

For example, if water droplets remain after sterilization, they may rust and become rusty in the same way as normal cleaning. Therefore, please dry thoroughly after sterilization.

Stainless steel products that are highly recommended if sterilization is a prerequisite

Stainless steel products that do not easily collect water droplets and allow smooth drying after sterilization

There is a stainless steel product with improved sanitary property by eliminating the part where dirt and water accumulate.

Since there is no part where water enters the product body, it not only dries smoothly after sterilization, but also has excellent washability and can be used to prevent contamination and contamination.

Learn More

Learn More

Learn More

Stainless Steel Trolley for Autoclave Sterilization

The standard container truck cannot be sterilized.

“KMS-A” is a sterilizable carriage with casters that can be sterilized in an autoclave.

Learn More

Stainless Steel Products Supporting Sterilization

We also manufacture stainless steel sterilization cans and baskets that are useful for placing instruments in sterilization machines.

Can be custom-designed and manufactured according to the size of the sterilizer and the size of the instrument to be inserted.

It is possible to order “I want to prioritize the usability here”.

Our company’s containers are particularly well received by Japanese pharmaceutical manufacturers. We have been supplying to generic pharmaceutical companies and health food manufacturers including Megapharma for many years.
In addition to considering applications and usage environments, we can design and manufacture stainless steel products that meet customer needs, such as “We want products that are suitable for sterilization” and “We want to place importance on measures against contamination.”.
If you are looking for a stainless steel product, please feel free to contact us.
Contact Us

Participate in The Exhibition Anuga FoodTec 2022 and 2022 Touch Taiwan

Posted on by monovate

Nitto Kinzoku Kogyo (Yashio City, Saitama Prefecture; President: Koichi Ohyama) will be exhibiting at trade shows in Germany and Taiwan.

Nitto Kinzoku Kogyo will do its best to contribute to customers’ product manufacturing by providing the best quality and solutions for their various requirements for stainless steel containers.
We are also looking for a wide range of distributors who are willing to cooperate with us in developing overseas sales.

We look forward to seeing you at our booth.

Exhibitions in Germany: Anuga FoodTec 2022

Anuga Food Tech 2022

https://www.anugafoodtec.com/

Date of the event: 2022/04/26 ~ 2022/04/29

Venue: Cologne exhibition centre

Anuga FoodTec 2022 will be even more generous. The exhibitors will present their products on over 150, 000 sqm – 20 football pitches full of innovations and exciting ideas. With wider aisles, the eGuard app to direct the flow of visitors and a camera-based people counting system, we offer you a successful and safe trade fair experience.

In combination with Anuga FoodTec@home , this creates a platform where experts and decision-makers from all areas of the food and beverage industry come together to jointly develop new and sustainable approaches for the F&B sector.

Stand Number

Exhibitor Name: F.E.C. Corporation

Hall: 7.1

Stand: A029

This will be a joint exhibit with FEC Corporation.

Exhibitions in Taiwan: 2022 Touch Taiwan

Touch Taiwan

https://www.touchtaiwan.com/en/

Dates : April 27 (Wed.) – April 29 (Fri.), 2022

Address : No1, Jingmao 2nd Rd., Nangang District, Taipei City, Taiwan

Touch Taiwan is now the world’s leading exhibition for the display industry supply chains and also the premier event having strong connection with Taiwan’s high-tech industries. It provides a powerful platform attracting numerous foreign buyers to purchase panels, learn new technologies, procure equipment and materials, and explore new business cooperation opportunities.

The show bring together wide-ranging exhibits associated with the display industry supply chains, such as optoelectronics, semiconductor, smart production, automation, robots, materials and components, machine vision, and electronics manufacturing equipment. Touch Taiwan will also incorporate related application fields, including OLED applications, commercial displays, digital signage, wearable displays, and vehicle displays, so as to present more abundant aspects for all participants in the event. The purpose is not only to integrate the display industry chain in Taiwan but to also serve as a platform that proactively helps manufacturers expand their business.

Stand Number

Exhibitor Name: CGT TECHNOLOGY CO., LTD.

Area: Industry Material / Net Zero

Booth No: L301

This will be a joint exhibit with CGT TECHNOLOGY CO., LTD.

Do you know the high grade material “SUS 316 L” of rust-resistant stainless steel?

Posted on by monovate

It is important to maintain durability, light resistance, cleaning, and sterilization in the production and storage of cannabis-oriented products.

The stainless steel container is held in place by four equally spaced strong clamps, the underside of which is bordered by silicon. These combinations maintain airtightness and deodorization.

This time, we will introduce the details of the “material” of stainless steel containers that are used in pharmaceuticals and Cannabis plants.

We recommend it to people like this.

  • I’m looking for a rust and corrosion resistant container that doesn’t harm Cannabis.
  • To prevent contamination with CBD oil
  • be looking for a product that puts safety first
  • Looking for products that focus on functionality and Cannabis quality over cost

Stainless steel is famous as a rust-resistant metal, but there are various kinds of stainless steel materials, and the strength of corrosion resistance is different. If you’re looking for a stainless steel container that’s more secure and functional than cheaper, this article should help.

What is rust-resistant stainless steel?

Generally, in the pharmaceutical industry and the food industry, the following materials are called high-grade stainless steel materials.

SUS316L

SUS 316L is a material that is more resistant to corrosion than ordinary stainless steel.

(The type of stainless steel is indicated in accordance with JIS standards. “SUS” represents stainless steel, followed by a number representing each steel type.)

One of the important factors in the quality of containers is "corrosion resistance."

If you store and store cannabis or CBD material, you need to avoid the risk of foreign material getting into it as much as possible, but if you use metal containers, the risk of “rusting” is always there.

If rust occurs, the following accidents could occur.

・Fragments of the rusted body get mixed into the content liquid and powder.

・Crackage or loss of rusted parts.

It is very important to avoid the risk of “rusting” and “corrosion”, especially in pharmaceutical and food manufacturing factories where high hygiene standards are needed.

Many stainless steel products, known as “rust-resistant,” are widely used in such fields.

Stainless steel containers can be stored appropriately while avoiding corrosion of the container body.

Different stainless steel materials have different performance of corrosion resistance

SUS 304 widely used worldwide

The stainless steel that we touch the most in our life is SUS 304.

The stainless steel material SUS 304 is said to be the most common type of steel and is used in a variety of places, including food equipment, general scientific equipment, building materials, the paper industry, the rolling stock industry, and kitchen equipment.

Our company also uses SUS 304 as a standard material.

SUS 316 with improved corrosion resistance

The material with higher corrosion resistance performance than SUS 304 is SUS 316.

There is a component called “molybdenum” which is not contained in SUS 304.

This molybdenum makes the passive film thicker and improves corrosion resistance.

Improved corrosion resistance in welding! High Grade Material SUS 316L

SUS316L is a material invented as an “updated version” of SUS316.

Metal has the property that while heat is applied during processing,  the metal material becomes easy to corrode and break.

SUS 316L is a low-carbon type stainless steel with a low carbon ratio contained in SUS 316. It is a material that is resistant to corrosion (intergranular corrosion) at the weld zone where parts are joined together.

SUS 316L is generally recognized as a high-grade model of stainless steel.

The quality of the cannabis is important, but it is also important to keep the high quality of the cannabis. Material selection is very important.

The following stainless steel container are made of SUS316L with excellent performance of corrosion resistance.

316 L General Purpose Container(Handle Type)

316 L Sealed Container (Clip Type)

316 316 L Sealed Container (Band Type)

Ferrule Type 316 L Straight Bottle

Sanitary Beaker SUS316L

SUS316 L Sanitary Tray

Nitto Kinzoku Kogyo can manufacture every container with SUS 316L material.

The container body can be changed to SUS 316 L material.
Most of the products on the product page are made of SUS 304, but it is possible to make them with SUS 316L material.
We will change the material of the body part where the liquid and powder you handle come into contact to SUS 316 L.
We also accept customized orders for products made by SUS 316 L materials. Please feel free to contact us.

Contact Us

Storage of CBD Materials: Importance of Tri-Clamp and Tightening Torque Management

Posted on by monovate

In a CBD production plant, it is very important to control the storage conditions of the product. In some cases, highly cleanable tri-clamp rings are used for piping in production equipment.
Tri-clamp rings do not require tools and can be installed manually, but the disadvantage is that the tightness of the clamp ring is determined by the operator’s senses and experience.

When we talk about “tightening” something, we tend to think to tighten something so firmly that the object is fixed and does not move.

However, “tighten it firmly” is not necessarily equal to “tighten it strongly”. It is important to tighten with the appropriate torque. Excessive tightening risks deforming or damaging the parts.

Another equally important issue is to be careful about gasket overflow due to over-tightening. The gasket between the piping or between the lid and the container may protrude inside or outside the container or piping, resulting in poor sealing or foreign matter contamination.

In this column, we will focus on the inside protrusion of the ferrule gasket. We will also conduct an experiment to see how much the gasket protrudes depending on the tightening torque when ferrule is tightened with a tri-clamp.

Read More
no-buffing

Should we NOT Buffing? What is the Consciousness of Stainless Steel Container Manufacturers?

Posted on by monovate
no-buffing

“Buffing” or “Buff polishing” is often done at the end of stainless steel products. Generally, stainless steel surfaces are shiny because they are buffed.

Buffing removes burrs and scratches during processing and improves surface smoothness. Because it makes a very beautiful appearance, buffing is generally done.

But the beautiful thing is just the appearance. Basically, if you don’t buff it, you can keep it clean. In this article, I will explain the reasons for this and NITTO KINZOKU’s commitment and consciousness.

1. It is better NOT to do buff-polishing.

Rea more