サンクメタル List of Products and Services

- The punch size can be specified from Φ5 to Φ25 in increments of 0.01 mm. - During the coating process of the electrode plate, sampling can be done as needed to measure the coating thickness. - The main body comes in a standard type with mold sizes from Φ5 to Φ16, a large type from Φ16.04 to Φ20, and a custom type from Φ20.01 to Φ25. - It is compact and lightweight (W30 x D130 x H100mm / 500g = standard type), making it easy for anyone to use. - A new product type with a insertion depth of 200 mm has also been added to the lineup. The punch size is only Φ20.

■Device Overview - Crimping of cylindrical battery 18650 - Punching with a diameter of 10mm or more

This device is used for punching electrodes such as metal foils and resin films with a Thomson blade. ★If you would like to request a test, please contact us.

This document provides a clear explanation of the equipment used for battery prototyping, such as lithium-ion batteries, step by step. We encourage you to read it! 【Features of Our Equipment】 ■ Equipment for battery "prototyping" ■ Short delivery time (as short as 3 months) ■ Coating thickness can be adjusted in 1-micron increments ■ Customization is also possible! Please consult with us. ■ Prototyping is also possible in our rental lab We can also provide the necessary substrates. *For more details, please refer to the PDF document or feel free to contact us.

The "Coter" is a device that accurately applies a coating of a consistent thickness to copper foil, aluminum foil, and films. Our products offer three types of coating methods: comma head type, die head type, and gravure head type, depending on the application method. We have a wide range of options available, allowing you to select the necessary options based on your requirements, and we provide the appropriate coating device. 【Features】 ■ Product testing is possible ■ Three types of coating methods ■ Abundant options ■ The appropriate method can be selected based on the materials to be coated and the coating conditions ■ Choose the necessary options, and we will provide the suitable coating device *For more details, please refer to the materials. Feel free to contact us with any inquiries.

The "slitter" is a device that slits the plates that have been compressed with a roll press after being coated with a coater. Slitting can involve only slitting the uncoated sections at both ends, or slitting into several strips at both ends and a specified width. We also offer a slitting & cutting device that cuts to a specified length after slitting. 【Product Lineup】 ■ Roll-to-roll slitter ■ Slitter & cutter *For more details, please refer to the PDF materials or feel free to contact us.

The "Vacuum Liquid Injection Device" is a device that injects a set amount of electrolyte into cylindrical, rectangular, and laminated batteries under vacuum conditions. The device is standardized in several types depending on the battery type and size. The injection process is carried out separately, and there is also a vacuum sealing device that alternates between vacuum and atmospheric release to seal under vacuum conditions (VD110/VD1200). 【Features】 ■ A device that injects a set amount of electrolyte under vacuum conditions ■ The device is standardized in several types depending on the battery type and size ■ For cylindrical and rectangular types, the vacuum chamber is small, allowing for slight pressurization ■ The laminated type finishes with a shorter injection time compared to cylindrical and rectangular types *For more details, please refer to the PDF document or feel free to contact us.

At Sunk Metal, we buy and sell unused machinery. If your company is having trouble disposing of machinery other than battery prototype equipment, please feel free to contact us. *For more details, please check the link below or feel free to reach out to us.*

We would like to introduce examples of options for improving work efficiency and heat dissipation measures that we have implemented. When processing materials with a strip-type roll press, collecting the finished materials one by one can be quite a labor-intensive task. To address this, we implemented a slider option. It may seem like a small change, but it has significantly improved work efficiency. [Case Overview] ■ Client: Company ■ Application: Battery prototype ■ Request: Measures for continuous use of the roll press *For more details, please download the PDF or feel free to contact us.

We would like to introduce a development case conducted by our company using the strip method. Unlike the winding method, the strip method requires manually pushing the material close to the roll. At this time, to prevent hands from getting caught in the roll, a safety cover is installed at the material's entry point. Normally, this specification meets safety measures, but the company we are introducing this time requested even higher safety standards. We considered whether it was possible to create a system that would eliminate the need to bring fingers close to the roll in the first place. This led to the creation of the roll press with a slider. [Case Overview] ■ Customer: Company ■ Application: Prototype of a battery ■ Request: To implement thorough safety measures to prevent hands from getting caught in the roll press *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we added a drying oven to a roll coater as an after-installation at our company. In the initial design, the drying oven was configured with two units, but during use, we received a request to "add a drying oven." In response, we decided to add the drying oven after the completion of the equipment. The Sankmetal coater has a modular design for the drying oven section, allowing for the unit to be split and new units to be added even after the equipment is completed. The design allows for the addition of up to six drying ovens to a single coater, accommodating needs like the one mentioned. [Case Overview] ■ Customer: Company ■ Application: Battery prototype ■ Request: To add a drying oven to the existing roll coater *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case regarding the development of a coater device that can use two heads. The request this time was for a roll coater that can use both a comma head and a die head. In the case we are presenting, we decided to forgo the "unit exchange type" because we wanted to minimize human operation during exchanges and reduce risks such as accidents. What the development team came up with was a method that encapsulates the unit, as shown in the image. Since it does not require optional parts and is quite reasonable in terms of cost, the customer was very pleased and decided to adopt it. 【Case Overview】 ■ Customer: Company ■ Application: Prototype of a battery ■ Request: A roll coater that can use both a comma head and a die head *For more details, please download the PDF or feel free to contact us.

The "TM-TE-21/46" is a device for necking cylindrical battery cases (such as 21700/4680 batteries). The touch panel allows for the setting and registration of various operation times. It can perform repeated necking operations based on pre-set parameters. Additionally, after necking, a lid can be set on the battery case, and it can be crimped using our crimping device. By changing the mold, necking of battery cans of different sizes can be performed. 【Specifications (partial)】 ■ Device mechanism: Table section (battery case set section)・Necking section (disk rotation section) ■ Safety device: Interlock on the device door, safety ensured by emergency stop button ■ Touch panel: Various operation time settings and registrations (3 types) ■ Device dimensions: w675×d250×h540mm (excluding the patrol light) ■ Device weight: 60Kg *For more details, please download the PDF or feel free to contact us.