Published in the April 2023 issue of Convertec: The World of Precision Dip Coating Suitable for Nanomaterials, Regardless of Workpiece Shape, and Its Latest Technologies.

It is an experimental dip coating device with a wide range of speeds and acceleration/deceleration functions.

The "DC Series" is a standard tabletop experimental device. By standardizing key functions such as processing speed, you can select the model based on the desired application length (application stroke). It covers a wide range of speeds (0.01 mm/s to 60 mm/s) while also pursuing precision operation at low speeds and considering user-friendliness and ease of use. Please check the catalog for detailed specifications. If you have any questions or wish to customize, please feel free to contact us.

• Painting Machine

Achieving a uniform coating film by using lifting and tilting functions for complex-shaped workpieces.

This device allows for the prevention of liquid pooling and approaches a uniform coating film by tilting the workpiece to an angle that facilitates liquid flow (Y-axis) during the lifting process (X-axis) for complex-shaped workpieces that are prone to liquid pooling in a vertical lifting posture. Additionally, for high-viscosity liquids that may cause dripping due to the posture after lifting, it is expected that changing the workpiece posture using the tilting function can also prevent dripping. As an option, it is possible to propose a 3-axis type by adding an additional axis and incorporating a rotation function to the tilt, allowing for a more uniform liquid flow onto the surface of cylindrical workpieces, resulting in a more uniform film formation.

• Painting Machine

The speed function and processing stroke have sufficient capabilities for experiments, and the very labor-intensive liquid exchange is made efficient with the equipped dual-tank system, allowing for effective experimentation.

This is a compact tabletop experimental device that fully meets the functional requirements for experiments (testing and condition setting) in dip coating. Both the main unit and the control box can fit on a single desk, allowing for easy initiation of experiments. After the experiments are completed, it also has the capacity to accommodate sample provision and small rod production, making it an efficient setup that is less likely to become dormant.

• Other surface treatment equipment

This is a tabletop dip coating device that can handle heavy substrates (up to 10 kilograms) that seemed to exist but did not, and enables precise control operations.

This is a tabletop experimental device that fully meets the functional requirements for testing and condition setting in dip coating, fitting on a single desk with both the main unit and the control box. A significant feature of this device is its ability to accommodate substrate weights of up to 10 kilograms while also possessing standard experimental operations as mentioned above.

• Other surface treatment equipment

The dip coater used as an experimental machine has been enhanced with a paint circulation unit and air conditioning system, expanding it into equipment suitable for sample production and small rod manufacturing.

By equipping the experimental machine, which tends to go into standby after completing experiments, with extended functionalities, it can transform into a facility capable of producing sample products that can be proposed to customers and small rod production as it progresses to the next stage. In reality, products formed by coating experiments such as dip coating often cannot be repurposed into sample products or actual products for customers due to irregularities in the appearance of the coated film. By reducing contamination, which is the main cause of these appearance irregularities, within the coating system, it is possible to dramatically decrease the disturbances in the coated film. ● Coating system for contamination reduction 1) Removal of contamination brought into the paint from the substrate (workpiece): Filtering during paint circulation and controlling the paint temperature within a certain range. 2) Increasing cleanliness by enclosing the coating area with a local booth and using a fan filter unit (FFU). The device that incorporates these two functions is the "FD200C2." We also offer the following options: - Monitoring of paint concentration and replenishment system - Temperature and humidity management within the local booth By adding these features, it becomes possible to provide even higher quality products.

• Painting Machine

This is a dip coating device equipped with ultrasonic functionality aimed at liquid circulation (four-sided overflow) and liquid penetration into fine details of the substrate.

This is a standalone device equipped with lifting functionality, liquid circulation functionality, and ultrasonic functionality aimed at liquid penetration into the fine details of the substrate. ◆ Benefits of 4-Sided Liquid Circulation Overflow - It can maintain a constant liquid level at all times. - The circulation path can be managed with the following functions: - Liquid temperature and concentration can be managed within a certain range. - Contaminants introduced into the liquid can be removed. ◆ Ultrasonic Function Aimed at Liquid Penetration into Fine Pores of the Workpiece ◆ Since humidity is undesirable after coating, a nitrogen purge function has been added to the dip lifting section and the liquid tank (with automatic lid). By incorporating additional functions tailored to the characteristics of the substrate and coating agent as described above, we strive to provide devices that meet our customers' objectives.

• Painting Machine

Fully automatic dip coater capable of processing dip coating, pre-drying, and UV curing.

This is a fully automatic device equipped with a precision control lifting function and a coating liquid circulation function (four-sided overflow), a one-pass hot air drying section as a pre-drying function, and a UV curing section as a hardening function, providing full functionality for coating, excluding cleaning. It is suitable for customers who can perform wet cleaning with existing equipment, making it ideal for fully automatic dip coating systems with high cost weights. 【Features】 ■ Fully automatic processing of the dip coating, pre-drying furnace, and UV curing processes ■ Perfect for customers who can perform wet cleaning with existing equipment ■ For heat-curing type coating liquids, specifications can be modified to change the UV curing function to a hot air circulation function, making it usable for a wide range of applications *For details, please request materials or view the PDF data available for download.

• Painting Machine

A device that automatically performs all processes from cleaning to dipping and curing for hard coating aimed at preventing scratches on lenses, enhancing weather resistance, and providing dirt resistance!

This is a device capable of automatic continuous processing from ultrasonic cleaning in multiple tanks to dip coating and UV curing, handling up to 70 plastic lenses per batch produced by injection molding. *While this is a representative device for mass production dip coating, its applications are not limited to industrial use; it is also suitable for functional coatings on food containers and medical components. With a focus on reducing vibrations, which is a crucial element in dip coating (considering mass effects, the placement of the drive source, and edge cutting), we have been dedicated to creating equipment that satisfies our customers by understanding the importance of each process in coating, including the role of ultrasonic cleaning in the preceding step (contributing to yield) and issues that arise during drying and curing in the subsequent step (such as film irregularities). **Features** - Capable of automatic continuous processing from ultrasonic cleaning in multiple tanks to dip coating and UV curing, handling up to 70 pieces per batch. - The paint is constantly monitored, maintaining the liquid temperature according to requirements while automatically adjusting the concentration of both the original and diluted liquids to ensure consistent concentration and temperature within a specified range. *For more details, please request documentation or view the PDF data available for download.*

• Painting Machine

This is a device that automatically performs all processes from cleaning to dipping and curing of a hard coat that can provide scratch resistance, weather resistance, and dirt resistance to large-sized injection-molded plastics.

This is a device capable of automatically and continuously processing multiple injection-molded plastic products sized 1,000×400 mm per batch, from ultrasonic cleaning in multiple tanks to dip coating and UV curing. Based on our years of experience, we prioritize vibration reduction, which is a crucial factor in dip coating (mass effect, placement of the drive source, and edge cutting) as part of our design philosophy. We understand the importance of each step in the coating process, including the role of ultrasonic cleaning in contributing to yield and the issues that can arise during the subsequent drying and curing processes (such as film irregularities), and we have been dedicated to creating equipment that satisfies our customers. The system also includes continuous monitoring of the paint, maintaining the liquid temperature according to requests, while automatically adjusting the liquid concentration by replenishing both the concentrated and diluted solutions to manage the coating within a consistent range of concentration and temperature. This is a mass production type hard coating device designed for large substrates, reflecting our experience and know-how.

• Painting Machine

Waterproof and oilproof functions like plastic products for food paper containers!

This is a prototype device for testing and verifying a coating that imparts water and oil resistance similar to plastic products to pulp molded food containers, which are gaining attention for their role in reducing plastic use. Based on previous experience, we can propose the necessary functions and application methods for the above coating.

• Painting Machine

As the new year begins, I would like to extend my heartfelt congratulations on your continued prosperity. I sincerely appreciate your exceptional support throughout the year. This is the STJ Group (Santelecom Japan, STJ Rentec). Now, I am pleased to announce that we will be opening our "Transceiver & Smartphone Rental Shop" simultaneously at three locations nationwide on January 26 (Monday)! ■ List of Services to be Offered - Same-day pickup/return of rental equipment - Usage explanations and demonstrations of rental equipment - Wireless solutions consultation desk - Mobile BPO service counter As a special promotion to celebrate the opening of the rental shop, we are currently running a special price campaign for picking up rental equipment at the shop! For more details, please contact us!

【Notice of Year-End and New Year Holidays】 Thank you very much for your continued support. Our company will be closed for the year-end and New Year holidays as follows: Holiday Period: Saturday, December 27, 2025 – Sunday, January 4, 2026 Please note that inquiries and orders received during the holiday period will be addressed sequentially starting from Monday, January 5, 2026. We apologize for any inconvenience this may cause and appreciate your understanding.

We would like to inform you about our participation in the IT Trend EXPO 2026 Spring. 《Exhibition Information》 With the concept of "New encounters will change tomorrow's work," one of the largest online exhibitions in the industry will be held. NTT TechnoCross will exhibit in the Human Resources Comprehensive category. We have prepared numerous discussions and sessions featuring special guests who are active on television, allowing even those who are usually busy to efficiently gather information on products and services related to IT and DX. Additionally, the first 10,000 participants will receive a 500 yen Amazon gift card. Please apply early. 《Exhibition Overview》 March 3 (Tuesday) to March 7 (Saturday), 2026, online (free: pre-registration required) 《Participation Application》 https://it.expo.it-trend.jp/key/opl7kgdj *Please apply (free) from the "Receive Ticket / Proceed to Participation Registration" link at the above URL.

The TV commercial "What Will You Do in the New Era?" featuring model and actress Akane Horita will begin airing on December 26, 2025. This work expresses the desire of Tokei Densan to respond to the diverse needs of various industries in today's society, where new technologies, such as the expansion of the AI market, are competing with each other, and to nurture and blossom our customers' futures. Please pay attention to Akane Horita, who is dressed in stylish outfits, listening to the concerns of the target audience and offering support. # CM Overview Title: "What Will You Do in the New Era?" (30 seconds / 15 seconds) CM URLs 30 seconds: https://youtu.be/y_lMs0HRj3w 15 seconds: https://youtu.be/egpzMfh8Kok

Thank you very much for your continued support. We would like to inform you that our company will be closed for the year-end and New Year holidays as follows: Year-end and New Year holiday period: December 27, 2025 (Saturday) to January 4, 2026 (Sunday) We apologize for any inconvenience this may cause and appreciate your understanding. *Please note that inquiries made through our website will also be responded to after January 5, 2026 (Monday).