三晴工業 List of Products and Services

Are you facing any issues with tightening screws? "I want to adjust the torque more freely." "I want to flexibly accommodate small screws like electronic components." "I need to ensure strength and durability, so I want to support tight and secure tightening." 'MN Lock' is a product developed in-house that allows for torque adjustment. It is possible to adjust the tightening torque and customize processing to match the torque specifications desired by the customer. 【Features】 ■ Can apply a brake during tightening ■ Can process the end of the screw, speeding up the tightening process ■ Ensures consistent and uniform product finishing ■ Allows for torque management ■ Usable screws: M1.5 to M18 *For more details, please refer to the PDF document or feel free to contact us.

• Torque Control
• Torque wrench

The "MN Lock" is a product that allows for torque adjustment through self-development. It can also be processed at the end of the screw, increasing the tightening speed. It is possible to adjust the tightening torque. Processing can be done to match the torque number desired by the customer. 【Features】 ■ Can apply a brake during tightening ■ Can be processed at the end of the screw, increasing tightening speed ■ The finish of the product is consistent and uniform ■ Prevents chipping of screws due to over-tightening ■ Allows for torque management *For more details, please refer to the PDF document or feel free to contact us.

• Torque Control
• Torque wrench

We would like to introduce some processing examples from Sansei Industrial Co., Ltd. This is polyethylene resin coating processing for automotive parts, also known as powder coating. By applying resin coating to the parts that are touched, we eliminate discomfort when touched and injuries caused by burrs. Additionally, since it is a visible part, it is possible to enhance visibility by applying aesthetics and color. While covering with rubber or vinyl can provide similar functionality, resin coating leads to overwhelming cost reduction. 【Features】 ■ Eliminates discomfort when touched and injuries caused by burrs ■ Enhances visibility by applying aesthetics and color ■ Leads to cost reduction *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce some processing examples from Sansei Industrial Co., Ltd. We applied a yellow polyethylene coating (resin coating) to the handle of a glass cup and the base of a wine glass. Additionally, we also offer red and black coatings. 【Features】 - Significant cost reduction without the need for molds - Beautiful finish that adds a touch of luxury - Improved quality assurance by preventing injuries and noise caused by burrs *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce examples of processing by Sansei Industrial Co., Ltd. This is a red nylon resin coating process for automotive parts. By applying resin coating to areas that are touched, we eliminate discomfort when touched and injuries caused by burrs. Additionally, since it is a visible part, it is possible to enhance visibility by applying aesthetics and color. While covering with rubber or vinyl can provide similar functions, resin coating leads to overwhelming cost reduction. 【Features】 ■ Eliminates discomfort when touched and injuries caused by burrs ■ Enhances visibility by applying aesthetics and color ■ Leads to cost reduction *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce a processing example from Sansei Industrial Co., Ltd. We applied red, yellow, and black polyethylene coating (resin coating) to the clamping part of the eye clip (metal clip). By changing the colors, it becomes easier to organize documents and other items. 【Features】 ■ Changing colors makes it easier to organize documents and other items ■ Significant cost reduction achieved without the need for molds ■ Beautiful finish adds a touch of luxury ■ Improved quality assurance by preventing injuries and noise from burrs *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce a processing example from Sansei Industrial Co., Ltd. We performed a yellow nylon powder coating process only on the tip of automotive parts. Instead of coating the entire surface, we applied nylon resin only to the tip. Adding color also enhances visibility. 【Features】 ■ Enhances visibility by adding color ■ Achieves significant cost reduction without the need for molds ■ Adds a touch of luxury with a beautiful finish ■ Improves quality assurance by preventing injuries and abnormal noises caused by burrs *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce processing examples from Sansei Industrial Co., Ltd. Typically, pre-coating can only be applied to one side, but full circumferential nylon coating can be applied uniformly around the entire screw, resulting in smooth movement and making it suitable as a pre-coat for adjustment screws. Additionally, the film thickness can be freely adjusted. 【Features】 ■ Uniform application around the entire screw ■ Smooth movement ■ Suitable as a pre-coat for adjustment screws ■ Film thickness can be freely adjusted *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce some processing examples from Sansei Industrial Co., Ltd. We performed a pre-coating process for anti-loosening on the tip of a long bolt. We used a powerful organic solvent-based adhesive that keeps costs down. Instead of pre-coating the entire tip of the bolt, we created a small uncoated area, making it easier to screw in. If you have something you wonder, "Can this be pre-coated?" please feel free to consult with us. 【Features】 ■ Uses organic solvent-based adhesive ■ By creating a small uncoated area, it becomes easier to screw in ■ Accommodates elongated shapes *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce a processing case from Sansei Industrial Co., Ltd. We pre-coated screws and bolt components used in automotive-related products with 3M Scotch Grip G-2353. Scotch Grip G-235 is an organic solvent-based adhesive and sealant that uses blue epoxy capsules made of epoxy resin. This is a commonly used pre-coating process characterized by high adhesion strength and resistance to vibration and impact. 【Features】 ■ Organic solvent-based adhesive and sealant ■ High adhesion strength and resistant to vibration and impact ■ Specification of coating range is also possible ■ Uniform application without inconsistencies in work *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce a processing example from Sansei Industrial Co., Ltd. We pre-coated screws and bolt parts used in automotive-related products with 3M's Scotch Grip SG-2451J. Scotch Grip SG-2451J is a solvent-based adhesive and sealant that uses orange epoxy capsules made of epoxy resin. It is characterized by its high adhesion strength and resistance to vibration and impact. Additionally, it has a wide temperature range, allowing for use in high-temperature environments compared to Scotch Grip G-2353. 【Features】 ■ High adhesion strength and resistance to vibration and impact ■ Wide temperature range, suitable for high-temperature environments ■ Specification of coating area is possible ■ Uniform application without inconsistencies in work *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce a processing case from Sansei Industrial Co., Ltd. We applied pre-coating processing with SG-2451J to the nut. It is usually easier to apply pre-coating processing to bolts and male threads than to nuts, but in cases where the bolt shape is complex or the bolt is fixed and cannot be removed, we perform pre-coating processing on the nut and threaded side. This work is more labor-intensive compared to processing on bolts and threads, but our company can carry out manual work by skilled workers while keeping costs down. 【Features】 ■ Pre-coating processing on the nut and threaded side ■ Possible to carry out manual work by skilled workers at reduced costs *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce some processing examples from Sansei Industrial Co., Ltd. Our company is capable of pre-coating processing from M1 and below (M0.8). We have a monthly production capacity of 1 million units. If you are having trouble with screw processing, please feel free to contact us. 【Features】 ■ Capable of pre-coating processing from M1 and below (M0.8) ■ Monthly production capacity of 1 million units *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

Here are some examples of processing by Sansei Industrial Co., Ltd. "The Loctite 200 Water-Soluble Pre-Coating Process" exhibits high-strength anti-loosening effects. It is a water-soluble type of anti-loosening treatment that is widely used globally and is environmentally friendly. 【Features】 ■ Exhibits high-strength anti-loosening effects ■ Can be used repeatedly ■ Environmentally conscious ■ Complies with REACH regulations *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

The "Pre-Coating Process" provided by Sankei Industries is a coating method that applies a non-sticky adhesive to screws in advance, preventing them from loosening when tightened. When the screw is screwed in, microcapsules contained in the adhesive break, providing both locking and sealing effects simultaneously. This method is commonly used in the automotive industry as a measure to prevent screw loosening. Our company can also provide a coating that does not apply adhesive to the tip of the screw, tailored to customer requests. This does not reduce the efficiency of the fastening work. In fact, it improves work efficiency by eliminating the need for adhesive work on-site, leading to significant cost savings as nuts are also unnecessary. 【Features】 ■ Simply bring screws pre-coated with non-sticky adhesive to the site ■ Achieves increased work efficiency and cost reduction. Can be reused multiple times ■ Strength is further enhanced by using nuts in conjunction ■ Compatible with various shapes of screws and bolts ■ Provides a lubricating effect on materials with high torque coefficients, reducing issues like seizing We also offer quick estimates and short delivery times. Proposals tailored to your requests and applications are also possible. *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• glue
• Torque wrench

We offer free prototyping for pre-coating processing and resin coating. Please send us the parts you would like to prototype, and we will return them after the prototyping is completed. First, please contact us with the parts you wish to prototype and your contact information. 【Overview】 ■ Up to 10 pieces ■ Shipping costs are the customer's responsibility ■ We may not be able to accept certain requests depending on the content *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• Processing Contract
• Other contract services

Our "resin coating processing" significantly reduces costs as it does not require molds, and it prevents injuries and noise caused by burrs. The coating method uses powdered resin and adopts the widely used fluid immersion method with substrates such as metal and glass. Through surface finishing by heating, we can produce more beautiful coated products. [Strengths of Our Resin Coating Processing] - Significant cost reduction as molds are not required - Prevention of injuries and noise caused by burrs - Beautiful finish that enhances luxury appeal *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• paint

The "Sealant Pre-Coating Process" not only secures screws to prevent loosening but also provides a sealing function to the screws, preventing gases or liquids from leaking through the gaps between the screws and nuts. It is suitable for applications involving gases, water, oil, air, and other liquids or gases, such as in automobiles and gas stoves. 【Features】 ■ Sealing function that prevents gas and liquid leakage ■ Pre-coated for improved efficiency on-site ■ Can be reused approximately 3 to 5 times ■ Ideal for applications using gases, water, oil, air, and other liquids or gases *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• paint

We offer a nylon resin-based adjustment type locking coating for screws. By adhering nylon to the screw, the elastic tightening pressure of the nylon eliminates the clearance between the screw and the nut, generating strong friction that makes loosening difficult. However, it does not bond completely, allowing for adjustments, re-tightening, and additional tightening later on. The color and application width can be adjusted. Please feel free to consult us. 【Features】 ■ Allows for adjustments without complete fixation ■ No expiration date, can be used repeatedly ■ Compatible with thick screws ■ Environmentally friendly, compliant with reach regulations ■ Processable dimensions: 0.8M to 24M *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• paint

We propose "water-soluble pre-coating processing." By applying adhesive to the screw threads in advance (pre-coating processing), the screws will not loosen simply by tightening them on-site. We use environmentally friendly water-soluble adhesives. This complies with the REACH regulations to minimize the use of substances harmful to human health and the environment. 【Features】 ■ Environmentally friendly water-soluble adhesive ■ Wide variety ■ Compliance with REACH regulations *For more details, please refer to the PDF materials or feel free to contact us.

• Surface treatment contract service
• paint

We offer "organic solvent-based pre-coating processing." By applying adhesive to the screw threads in advance (pre-coating processing), you can simply tighten the screws on-site, preventing them from loosening. It is also possible to specify the coating range. The application is uniform, ensuring consistent work quality. 【Features】 ■ Cost reduction is possible ■ Strong adhesion ■ Quick delivery ■ Wide temperature range ■ Uniform application with no inconsistencies in work *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• paint

"PE Lock" is a product that solves the problem of screws becoming difficult to turn when a nylon resin-based adjustment type (looseness prevention) is pre-coated on small screws. The elastic tightening pressure of polyethylene eliminates the clearance between the screw and the nut, generating strong friction that prevents loosening. It does not completely adhere, allowing for adjustments, re-tightening, and additional tightening later on. 【Features】 ■ Pre-coating with polyethylene resin ■ Smooth rotation without loosening ■ Repeatable adjustments ■ Suitable for thin screws ■ Usable dimensions: M1.5 to M6 *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• paint

"Pre-coating processing" is a method where adhesive is applied to the threads in advance. By applying adhesive to the threads before tightening the screws, it prevents the screws from loosening. Using pre-coated screws and bolts increases on-site work efficiency by 20%, leading to significant cost reductions. Additionally, a non-sticky adhesive is applied to the screw parts in advance. It is possible to lock (fix) the screws simply by tightening them as usual. 【Features】 ■ Non-sticky adhesive is applied to the screw parts in advance ■ Increased work efficiency ■ Leads to significant cost reductions ■ Provides a lubricating effect on materials with high torque coefficients, reducing issues like seizing *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• paint

"Diamid" is an excellent thermoplastic engineering plastic primarily composed of nylon 12 resin, manufactured and sold by Daicel Evonik Co., Ltd., a joint venture between Daicel Chemical Industries, Ltd. and the German company Evonik. Unlike conventional engineering plastics, it has a wide range of applications, including not only injection molding and extrusion molding but also hot melt adhesives, powder coatings, and surface treatment agents. The coating powder "Diamid" for powder coating is widely used in various fields such as industrial parts, automotive components, construction industry materials, and clothing parts due to its excellent paintability, heat resistance, chemical resistance, and long-term corrosion resistance. 【Features】 - Low specific gravity - Excellent adhesion to metals - Superior resistance to corrosion, including water, hot water, and saltwater - Low friction coefficient and excellent wear resistance - Good sound absorption of the coating film, effective in reducing metallic noise For more details, please contact us or download the catalog.

• Surface treatment contract service
• paint