東海進研 List of Products and Services

Tokai Shinken is a precision sheet metal processing company. We provide VA/VE proposals aimed at improving quality and reducing costs, delivering processing suggestions that closely align with our customers' needs. 【Main Processing Materials】 Steel: SPCC/SPHC/SECC Stainless Steel: SUS304/SUS430 Aluminum: A5052P/A1100 【Well-Equipped Partner Factories】 Welding: Aluminum and titanium welding / High-precision laser welding Processing: Painting / Plating / Anodizing / Silk printing Machining: Machining processing / Resin processing / Large sheet metal / Pipe processing 【Key Points!】 ■ VA/VE Proposals Achieve quality improvement and cost reduction through product processing proposals. ■ Nationwide Support We accept quotation requests from all over the country. ■ Processing Quantity We accommodate not only prototypes and mass-produced items but also single items and small lots. ■ Processing Fields Beyond Precision Sheet Metal We provide one-stop solutions in collaboration with partner factories, not limited to precision sheet metal processing. ■ Same-Day Quotation Response We always respond to quotation requests with short lead times. Depending on the content, same-day responses are possible! If you are a person in charge struggling with manufacturing, please feel free to contact us. *For more details, please download our materials or feel free to reach out to us!

• Mechanical Design

At Tokai Shinken, we specialize in precision stainless steel sheet metal processing, and we can consistently provide not only processing but also surface treatment of stainless steel as required by the application. For surface treatment, we utilize an external network capable of processing, allowing us to select the optimal suppliers based on the required treatments such as polishing, chemical treatment, heat treatment, embossing, etching, plating, and painting, while ensuring quality control. Additionally, we propose value analysis (VA) and value engineering (VE) considering design and cost aspects during surface treatment, guaranteeing the provision of high-quality stainless steel sheet metal products at appropriate costs. If you have any products that are causing you trouble regarding stainless steel sheet metal, please contact us. 【Features】 ■ A consistent production system utilizing a network of suppliers for various stainless steel surface treatments ■ Proposal capabilities for VA/VE based on our track record in stainless steel sheet metal and surface treatment products ■ Support for prototypes before mass production, with the ability to propose shape changes and methods with an eye on mass production! *For more details, please refer to the PDF materials or feel free to contact us.

• stainless
• Processing Contract
• Other food machinery

We manufacture and respond to production of precision sheet metal processing products in medium lots of up to 500 pieces per month, starting from prototypes and single items. Sheet metal processed products for medical devices, inspection equipment, office automation equipment, electrical and electronic devices, and semiconductor equipment begin with the creation of prototypes or small lots (ranging from a few to several dozen pieces). These prototypes are evaluated and feedback is provided by the customer, leading to the transition to mass production. We offer design proposals that consider mass production feasibility from the prototype stage. 【Features】 - Prototypes are evaluated and feedback is provided by the customer, leading to mass production. - Design proposals that consider mass production feasibility from the prototype stage. - Equipped with precision sheet metal processing equipment that emphasizes productivity and processing accuracy. - One of the main pieces of equipment is a "laser and turret punch combination processing machine," which includes functions for forming processes such as dowels and bar rings, as well as tapping. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We are making VA (Value Analysis) / VE (Value Engineering) proposals to enhance the competitiveness of our customers' products. It is said that "80% of the cost of precision sheet metal processing is determined at the design stage." Therefore, cost reduction, yield improvement, lead time shortening, and quality enhancement in precision sheet metal processing can achieve significant effects by addressing these issues from the design stage. We provide support proposals unique to precision sheet metal processing companies that are well-versed in processing methods. 【Features】 ■ We make VA/VE proposals considering the characteristics of "thin plates." - By changing processing methods or modifying drawings, we can produce precision sheet metal products without compromising the necessary functions. ■ We create a "Technical Handbook" for designers and developers of equipment and devices. - This handbook includes the VA/VE case studies we propose. - The VA/VE case studies are presented with general content, explanations, illustrations, and photographs. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We are constantly working to maximize QCDS (Quality Cost Delivery Service). In terms of cost, we propose the production of precision sheet metal processing products at favorable prices through VA/VE proposals. Regarding delivery and service, we offer "Express Service for Precision Sheet Metal in the Tokai Area." Additionally, in terms of quality control, we aim for a high-quality management system by establishing various inspection equipment and inspection processes. [Features] - We strive to prevent defects through thorough quality management. - In terms of quality inspection, we use various inspection tools not only for final inspections but also at each stage to suppress the occurrence of non-conformities within the process. - We mainly produce and supply precision sheet metal processing products focusing on the Tokai, Kanto, and Koshinetsu areas. - As a service for equipment and machinery manufacturers in the Tokai area, we provide "Express Service for Precision Sheet Metal." *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Precision sheet metal processing generally refers to the process of changing the shape of thin sheet metal by bending or cutting it. The equipment and devices that use precision sheet metal products span a wide range, including medical devices, food equipment, office automation equipment, analytical instruments, and semiconductor braking devices. 【Process Flow】 ■1. Design ■2. Material Selection ■3. Blanking ■4. Bending Processing ■5. Welding Processing ■6. Assembly ■7. Surface Treatment ■8. Inspection and Shipping *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We will introduce our precision sheet metal processing products and the processing equipment we offer for precision sheet metal processing. We can accommodate a wide range from small lots to mass production without being constrained by production quantities. We also ensure that we have sufficient capacity for delivery timelines, allowing us to promise a minimum delivery time of 3 weeks. (Expedited orders can be accommodated separately.) Additionally, we use various processing equipment, including a "laser processing machine" that locally melts the desired areas, as well as "turret punch presses" and "welding machines." [Features] ■ Wide range of support from small lots to mass production ■ Not constrained by production quantities (price reductions are made according to processing lots) ■ Guaranteed minimum delivery time of 3 weeks (expedited orders can be accommodated separately) ■ Many of our products are produced in moderate lot sizes (10 to 100 units/month) ■ In some cases, mass production of up to 1,000 units is also possible *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Precision sheet metal products are made from various materials according to their intended use. Precision sheet metal products made from iron, stainless steel, and aluminum are widely used, and even among the same metal, each material has its own characteristics, such as the presence or absence of added properties like corrosion resistance, differences in physical values like density and tensile strength, and variations in appearance. When selecting materials, it is essential to fully understand these characteristics and design accordingly. For example, in the case of products intended for outdoor use, using materials that inherently possess corrosion resistance can eliminate the need for surface treatment, leading to cost reductions. When choosing materials, it is necessary to consider the environment in which the precision sheet metal products will be used, the shape of the products, and the market availability of the materials. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

"Blank processing" refers to processes such as cutting materials from sheets. Broadly speaking, it is processed using two types of sheet metal processing machines: "laser processing machines" and "turret punch presses." The "laser processing machine" cuts by irradiating the material with a laser to locally melt it, and then blowing assist gas onto the molten part to blow away the molten material. In contrast, the "turret punch press" creates holes in steel sheets by attaching various shaped molds to a circular mold holder called a turret and pressing them. A machine that can perform both types of blank processing simultaneously is called a combined processing machine. It has the functions of both a laser processing machine and a turret punch press, allowing it to adopt the most suitable processing method each time, thereby minimizing processing costs. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

In precision sheet metal processing, surface treatment may be applied towards the end of the processing stages. By applying surface treatment, characteristics that the material does not originally possess can be added. "Plating" is a surface treatment method that deposits a thin metal film onto the material. It allows for the addition of various characteristics inherent to the metal being plated. "Painting" is a process that applies paint to the surface of the material, with various methods such as baked painting and powder coating. Compared to plating, painting excels in decorative qualities. "Silk printing" is a method of printing by applying ink through the holes of a stencil, commonly referred to as silk screen or screen printing. 【Features】 <Plating> ■ A surface treatment method that deposits a thin metal film onto the material ■ Allows for the addition of various characteristics inherent to the metal being plated ■ SPCC lacks corrosion resistance and can rust, but nickel plating can provide corrosion resistance ■ Broadly categorized into two types: electroplating and electroless plating *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

The precision sheet metal work that our company promotes refers to the processing of device parts around 30mm to 100mm. Our customers' needs include space-saving designs while incorporating multiple functions within that space. We achieve this by performing multiple bending processes to create a 3D shape that adds these functions. **Key Points for Producing Complex Bent Parts in Precision Sheet Metal Processing:** - When bending, consider the gripping allowance when using a bending machine and leave excess material. - In bent products, painting and surface treatment can often lead to poor surface treatment at corners and bends; if aesthetics are not a concern, flexibility can be applied. - For products referred to as multi-stage bends, the approach to the blanking and bending processes is crucial, so it is advisable to consult with the processing company regarding the processing steps. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

Alojin treatment is one of the surface treatments applied to processed products made from aluminum materials. When it comes to aluminum surface treatments, anodizing is commonly used, which enhances the dyeability and corrosion resistance of aluminum materials. On the other hand, there has been an increase in inquiries about whether Alojin treatment can be done recently, and we are responding to those requests. 【Features】 - Forms a corrosion-resistant film on aluminum materials, providing conductivity - Suitable for painting aluminum products - Forms hexavalent chromium conversion treatment film or trivalent chromium conversion treatment film between the aluminum material and the paint during painting - Significantly improves adhesion with the paint - Lighter in cost compared to anodizing *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Tokai Shinken Co., Ltd. specializes in precision sheet metal fabrication and related assembly. When performing bending processes on precision sheet metal products with a short lead time, by considering the material and plate thickness and conducting the bending based on the limit dimensions, we can prevent warping. In particular, when carrying out short lead times for thin sheet metal and thin plate metal within precision sheet metal fabrication, considering the limit dimensions for bending from the design stage allows us to prevent rework and the occurrence of defective products, whether they are prototypes or mass-produced items. 【Features】 ■ By considering the material and plate thickness and conducting bending based on the limit dimensions, we can prevent warping. ■ By considering the limit dimensions for bending from the design stage, we can prevent rework and the occurrence of defective products. *For more details, please refer to the PDF document or feel free to contact us.

• Technical and Reference Books
• Processing Contract

Tokai Shinken Co., Ltd. engages in precision sheet metal processing and surrounding assembly. When performing blank processing with laser cutting, using assist gas of high-purity nitrogen on the laser cutting machine makes it difficult for an oxide film to form on the cut surface. Additionally, even when welding is performed on the cut surface, the finish is clean, allowing for high-quality appearance in precision sheet metal products that undergo painting or silk screening after welding assembly. 【Features】 ■ Using assist gas of high-purity nitrogen on the laser cutting machine makes it difficult for an oxide film to form on the cut surface. ■ The finish remains clean even after welding on the cut surface. *For more details, please refer to the PDF document or feel free to contact us.

• Technical and Reference Books
• Processing Contract

Tokai Shinken Co., Ltd. specializes in precision sheet metal and related assembly. When welding small sheet metal parts with spot welding, securing a space of about 15mm for the spot allowance can prevent quality degradation caused by welding heat and pressure. By designing with consideration for deformation and misalignment due to welding heat and pressure, it is possible to produce high-quality precision sheet metal products without adding unnecessary processes. [Features] ■ By securing a space of about 15mm for the spot allowance, quality degradation due to welding heat and pressure can be prevented. *For more details, please refer to the PDF document or feel free to contact us.

• Technical and Reference Books
• Processing Contract

Tokai Shinken Co., Ltd. is engaged in precision sheet metal processing and related assembly. By performing bending processing at a slightly acute angle from the start, rather than at 90 degrees, for cases of various industrial equipment and devices where covers are to be installed, we can prevent interference with the cover without the need for welding. In particular, for medical devices and equipment where aesthetic qualities such as design and decoration are required, eliminating the welding process can reduce the costs associated with removing welding marks. [Features] - By performing bending processing at a slightly acute angle from the start, we can prevent interference with the cover without the need for welding. - It is possible to reduce the costs associated with the removal of welding marks. *For more details, please refer to the PDF materials or feel free to contact us.

• Technical and Reference Books
• Processing Contract

Tokai Shinken Co., Ltd. is engaged in precision sheet metal and related assembly work. By changing the method of forming the step at the mounting part of the equipment cover door from deep drawing through press processing to spot welding of precision sheet metal parts, we can reduce processing costs. With spot welding of precision sheet metal parts, not only are mold costs eliminated, but also the time required for mold arrangement is no longer necessary. [Features] ■ No mold costs required ■ No time required for mold arrangement *For more details, please refer to the PDF document or feel free to contact us.

• Technical and Reference Books
• Processing Contract

This document presents VA/VE technology for precision sheet metal processing for industrial equipment and devices. It introduces basic knowledge of precision sheet metal for industrial equipment and devices, as well as cost reduction techniques and trouble prevention techniques, using photos and diagrams. Please take a moment to read it. [Contents] ■ Basic knowledge of precision sheet metal for industrial equipment and devices ■ Case studies of VA/VE for precision sheet metal in industrial equipment and devices ■ Product examples of precision sheet metal for industrial equipment and devices ■ Company information *For more details, please refer to the PDF document or feel free to contact us.

• Technical and Reference Books
• Processing Contract

Our management philosophy is to develop society through proactive and creative excellence in product creation and services, to contribute widely to society, and to build the growth and happiness of each individual.

• Mechanical Design