トクサイ List of Products and Services

Our company will be exhibiting at the "Mechanical Components Technology Exhibition" held at Tokyo Big Sight. We plan to showcase a variety of products, including "NiTi wire" with a smooth surface condition and stable diameter tolerance (±2μm) throughout its length, and "shaped pins" with sharp end face shapes. 【Exhibited Products】 ■ New Product: NiTi Wire (φ0.025) ■ New Product: Shaped Pin (Thickness 0.0127 x Width 0.0381 x Length 10mm) ■ Ultra-Fine Wire (φ0.0025) ■ W-Mo Wire (φ0.010 & φ0.050, Black and White) ■ Ultra-Short Pin (φ0.030 x 0.6L) ■ Probe Pin (φ0.0762 x 76L, φ0.50 x 19.4L, etc.) ■ Plated Wire (Au/Ag/Cu φ0.10) ■ Oxide Wire (φ0.060 Purple/Blue/Green/Yellow/Gold) ■ Ribbon Wire (SUS/NiTi/Cu/BeCu) ■ Pt Clad Mo Wire (φ0.50) 【Exhibition Overview】 ■ Date: June 19 (Wed) - 21 (Fri), 2024 ■ Venue: Tokyo Big Sight ■ Booth: E39-6 *For more details, please feel free to contact us.

• Other machine elements

Our company will be exhibiting at the "Technical Show Yokohama 2024" to be held at Pacifico Yokohama from February 7 to 9, 2024. We plan to showcase a variety of products, including the φ0.0025 "ultra-fine wire," which challenges the limits of thinness, and the φ0.030x0.6L "ultra-short pin," which challenges the limits of shortness. 【Exhibited Products】 ■ Ultra-fine Wire (φ0.0025) ■ W-Mo Wire (φ0.010 & φ0.050L, black and white) ■ Ultra-short Pin (φ0.030x0.6L) ■ Probe Pin (φ0.0762x76L, φ0.50x19.4L, etc.) ■ Plated Wire (Au/Ag/Cu φ0.10L) ■ Oxide Wire (φ0.060 purple/blue/green/yellow/gold) ■ Ribbon Wire (SUS/NiTi/Cu/BeCu) ■ Pt Clad Mo Wire (φ0.50) 【Exhibition Overview】 ■ Date: February 7 (Wednesday) to 9 (Friday), 2024 ■ Venue: Pacifico Yokohama ■ Booth: J08 *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We will be exhibiting for the first time at the 28th Mechanical Components Technology Exhibition held at Tokyo Big Sight. We plan to showcase a variety of products, including the "ultra-fine wire" with a diameter of 0.0025mm, and the "W-Mo wire," which is meticulously crafted by artisans passing thicker wire through our original developed drawing machine multiple times. We sincerely look forward to your visit. 【Exhibition Overview】 ■ Date: June 21 (Wed) - June 23 (Fri), 2023, 10:00 AM - 6:00 PM (until 5:00 PM on the last day) ■ Venue: Tokyo Big Sight ■ Booth: East Hall 4, Booth No. 36-6 ■ Admission Fee: Free (5,000 yen per person if you do not have an invitation ticket) *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Tokushai was founded as a special fine wire research institute and is a company that specializes in "processing tungsten ultra-fine wire," making it one of the leading companies in the world in this field. Currently, we are proudly offering a document titled "Basic Knowledge of Tungsten Vol. 3," which includes features of straight processing, main materials, examples of product applications for straight processing, and more! [Contents] *Excerpt ■ What is tungsten? ■ Tokushai's ultra-fine wire ■ Challenging the limits of shortness ■ Tokushai's straight processing <Examples of product applications> ■ Examples of applications for Tokushai products *Please feel free to consult us regarding small quantities, diverse varieties, short delivery times, prices, etc.

• Processing Contract

Tokushai is a company that specializes in "processing ultra-fine tungsten wire," equipped with advanced technology and extensive know-how cultivated over many years. Currently, we are offering a document titled "Basic Knowledge of Tungsten Vol. 2," which includes information on the characteristics of the material, surface treatments we provide, and examples of applications. You can download it from "PDF Download," so if you are interested, please take a moment to read it. [Contents] ■ What kind of company is Tokushai? ■ What is tungsten? ■ Tokushai's surface treatments ■ Tokushai's tungsten wire can be made this fine ■ Tokushai's surface treatments <Product application examples> ■ Examples of tungsten applications We are here to meet our customers' needs. Please feel free to consult us regarding small quantities, a wide variety of products, short delivery times, and pricing.

• Processing Contract
• Other metal materials
• Special Steel

Tokushai Co., Ltd. was founded in 1950 as a Special Fine Wire Research Institute and is now celebrating its 72nd anniversary. It is one of the world's leading companies specializing in the processing of ultra-fine tungsten wire. This time, we have created this document titled "Basic Knowledge of Tungsten." It clearly explains the characteristics and appeal of tungsten, as well as our technological capabilities, using diagrams and photographs. We hope many people will come to know about it. You can download it from the PDF download link, so if you are interested, please take a moment to read it. [Contents] ■ What kind of company is Tokushai? ■ What is tungsten? ■ How do we make it thin? ■ Tokushai's tungsten wire can be this thin! ■ Tokushai's tungsten wire can be this long! ■ Examples of tungsten applications, and more. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other metal materials
• Special Steel

At Tokusai, we can continuously electroplate ultra-fine metal wires with a minimum diameter of φ0.005mm (φ5μm) using metals such as gold, silver, copper, nickel, tin-copper, and palladium. Additionally, it is possible to apply multiple platings (such as gold, nickel, and copper) on a single wire. For example, it is possible to first apply a nickel plating as a base and then apply a gold plating on top. 【Features of Tokusai's Electroplating】 (1) No color unevenness, with uniform plating thickness (±0.2μm) (2) Excellent adhesion (3) Surface roughness can be reduced through post-plating drawing 【Expected Effects of Plating Processing】 (1) Improved solder wetting properties… copper plating, tin-copper plating, nickel plating, etc. (2) Enhanced corrosion resistance… gold plating, palladium plating, etc. (3) Control of resistance values… silver plating, copper plating, etc. (4) Improved wear resistance… nickel plating, etc. (5) Enhanced aesthetic appearance… gold plating, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Tokusai's unique "wire drawing fine wire technology," "heat treatment technology," "straight processing technology," and "advanced processing technology" have combined over 70 years of accumulated know-how and ideas, along with the craftsmanship's dedication to analog methods, enabling us to produce MEMS (micro) pins with a diameter of 0.030mm and a length of 0.600mm. *As performance values* Diameter: 0.030mm tolerance ±0.001mm Length: 0.600mm tolerance ±0.0015mm 【Materials handled】 ▪ Tungsten ▪ Molybdenum ▪ Stainless steel ▪ Beryllium copper ▪ Nickel-titanium alloy ▪ Other metals and alloys For inquiries or consultations regarding MEMS (micro) pins, please feel free to contact us. We would be delighted to take on new challenges together with our customers.

• Contract manufacturing

We offer various metal and alloy "rolling" processing services. *We can accommodate small lots starting from 100m or 100g! By rolling wire, we can manufacture continuous lengths of flat wire (flat square wire, ribbon material). Additionally, by utilizing Tokusai's ultra-fine wire technology, we can produce extremely thin and precise flat wire with a minimum thickness of 0.010±0.002mm. Furthermore, thanks to Tokusai's plating technology, we can also manufacture plated flat wire. We can achieve small tube shapes, blade shapes, and spring shapes. 【Main Materials】 ■ Copper alloys ■ Stainless steel ■ Iron-nickel alloys ■ Nickel-titanium ■ Piano wire *Please feel free to contact us regarding materials other than those listed above.

• Contract manufacturing
• Processing Contract
• Plastic processing machines (cutting and rolling)

At Tokusai Co., Ltd., we perform "pin tip processing." We can achieve "R processing" and "C face processing" with a minimum diameter of 35 microns (0.035 mm) at the tip, as well as "sharp edges" with a minimum diameter of 15 microns (0.015 mm). *1 micron = 1μm = 10⁻⁶m With our unique processing technology and know-how, we can manufacture products tailored to our customers' specifications. If you are having trouble with pin tip processing, please feel free to consult us. 【Pin Tip Processing】 ■ R Processing ■ Sharp Edge ■ C Face Processing 【Materials Handled】 ■ Tungsten ■ Molybdenum ■ Stainless Steel ■ Beryllium Copper ■ Nickel-Titanium Alloy ■ Other Metals and Alloys *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Surface treatment contract service
• Other machine elements

This document introduces technology that allows for wire drawing down to φ0.01mm (10μm) and electro-polishing down to φ0.0025mm (2.5μm). It also presents techniques for "plating" and "straightening" these wires. All product manufacturing equipment that maximizes our unique manufacturing know-how is developed in-house. Furthermore, not only technical skills but also the craftsmanship of artisans who carefully pass the wire through the die multiple times to create ultra-fine wires, along with the electro-polishing process and quality inspection, are supported by a skilled group of "Tokusai Masters" who have cultivated their techniques over many years. We can work with difficult-to-process materials such as tungsten and molybdenum, as well as stainless steel, beryllium copper, and nickel-titanium alloys. Additionally, we can manufacture rods, pins, and bars cut from fine wires. It is also possible to perform "plating" along the entire length of the wire. **Features** - Wire drawing processing down to φ0.01mm (10μm), and further processing down to φ0.0025mm (2.5μm) after electro-polishing. - Continuous plating along the entire length of φ0.005mm (5μm) wire is possible due to our unique manufacturing equipment and processing methods. - In "plating," we can respond to short delivery times while reducing processes, labor, and costs.

• Non-ferrous metals

Tokushai Co., Ltd. is engaged in the drawing processing of various metals and alloys, as well as the manufacturing and sales of drawn products. Thick wire with a diameter of φ1mm is carefully drawn multiple times through a die by skilled craftsmen to create fine wire and ultra-fine wire. Difficult-to-process materials such as tungsten and molybdenum are drawn while being heated, allowing us to produce ultra-fine wire with a minimum diameter of less than φ0.01mm, and we can create ultra-fine wire with a diameter of just φ0.0025mm using electrolytic polishing surface treatment. Furthermore, leveraging our machining technology, plating and surface treatment technology, and composite technology, we also handle plated wire, rods, cut pins, bar stock, and ultra-fine wires and ultra-thin ribbons made from various metals and alloys. 【Materials Handled】 ■ Tungsten ■ Molybdenum ■ Stainless Steel ■ Beryllium Copper ■ Nickel-Titanium Alloy ■ Other Metals and Alloys *For more details, please download the PDF or feel free to contact us.

• Other electronic parts

A major feature of continuous wire plating is that it maintains a uniform color throughout its entire length, with a plating thickness that is consistent (±0.2μm) and excellent adhesion properties. Additionally, it is possible to apply multiple platings (such as gold, nickel, and copper) on a single wire. Furthermore, thanks to Tokusai's superior wire drawing technology, post-plating wire drawing processing is also possible, resulting in a smooth surface finish! For ultra-fine wire plating, we have a production record of over 20,000 meters (20 km) per wire. Tokusai has been continuously challenging itself for 70 years since its founding, looking towards an endless future. Would you like to utilize our extremely fine plating wire of φ0.005mm, which can only be achieved by Tokusai, to create a new world with your technology? 【Main Materials】 ■ Tungsten ■ Molybdenum ■ Copper Alloy ■ Iron-Nickel Alloy ■ Brass Wire ■ Piano Wire ■ Stainless Steel *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Surface treatment contract service
• Plating Equipment

The history of wire drawing, its characteristics, how to make thin wires, and how thin wires can be produced. A must-see for those wondering what wire drawing is and the processing technology that Tokusai possesses! We will explain it with trivia! Basic explanations on how wire is made, how it is processed, its characteristics, applications, and market, along with frequently asked questions. This is useful not only for training new employees but also for selecting wire. [Contents] ■ What is wire drawing? ■ History of wire drawing ■ Characteristics of Tokusai's wire-drawn products - How are thin wires made? - How thin can wires be produced? - How long can they be? - How much is produced? ■ The challenges of wire drawing and the technologies and skills of Tokusai that make it possible ■ Examples of applications for Tokusai products [Industries] ■ Semiconductors ■ Electronic components and electrical products ■ Aerospace ■ Medical ■ Automotive parts ■ Lighting materials, etc. * For more details, please refer to the PDF document or feel free to contact us.

• Mechanical Design

Tokusai Co., Ltd. engages in the drawing processing of various metals and alloys, as well as the manufacturing and sales of drawn and processed products. Tokusai products support the future of various fields, from lighting, semiconductors, electronic devices, medical equipment, and aerospace to leisure goods, often in unseen ways. 【Materials Handled】 ■ Tungsten ■ Molybdenum ■ Stainless Steel ■ Beryllium Copper ■ Nickel-Titanium Alloy ■ Other Metals and Alloys *For more details, please download the PDF or feel free to contact us.

• Other molds

Tokusai Co., Ltd. was founded in 1950 as a company that creates "special thin wires," true to its original name, "Special Thin Wire Research Institute." We support the future of various advanced fields, from lighting, semiconductors, electronic devices, medical equipment, and aerospace to leisure products, often in unseen ways. Moving forward, we will leverage the technology and skills cultivated through our manufacturing experience from our founding to the present, evolving further towards the future and growing as a leading technical and skilled group in the industry. 【Examples of Tungsten Wire Applications】 ■ Component Manufacturers - Lighting materials - Twisted wire ropes - Mesh ■ End Users - Lighting - Single crystals, etc. - Industrial furnaces, etc. - Leisure products *For more details, please refer to the PDF materials or feel free to contact us.

• Contract manufacturing

Tokusai Co., Ltd. was founded in 1950, true to its name "Special Wire Research Institute," as a company that creates "special thin wires." Thick wire is carefully drawn multiple times through a die by craftsmen using our original developed wire drawing machine to produce thin and ultra-thin wires. We are capable of stretching a wire with a diameter of 1mm and a length of 1m down to a diameter of 0.01mm and a length of 10,000m. Leave the manufacturing of thin wires to us. *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing

We offer wire drawing processing of various metals and alloys. From φ1mm, our skilled craftsmen carefully pass the wire through the die multiple times using our original wire drawing machine to create fine and ultra-fine wires. For difficult-to-process materials such as tungsten and molybdenum, we perform wire drawing while heating, allowing us to produce ultra-fine wires with a minimum diameter of φ0.010mm. 【Materials Handled】 ■ Tungsten ■ Molybdenum ■ Stainless Steel ■ Beryllium Copper ■ Nickel-Titanium Alloys ■ Other Metals and Alloys *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing

Our company offers "electrolytic polishing," which allows us to pass current through metal wires in an electrolyte solution to dissolve the metal surface and control its surface condition, as well as other surface treatment electrolytic polishing services such as "oxidation coating" and "resin coating." 【Materials Handled】 ■ Tungsten ■ Molybdenum ■ Stainless Steel ■ Beryllium Copper ■ Nickel-Titanium Alloys ■ Other Metals and Alloys *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing

Our company offers "straightening processing" for various metals and alloys. With our original straightening machine and unique know-how, we can provide products with excellent straightness and good surface quality. We also have experience in straightening processing down to φ0.010mm. If you have any requirements or inquiries, please feel free to contact us. 【Main Materials (Excerpt)】 ■ Tungsten ■ Precious metals ■ Titanium alloys ■ Rhenium tungsten ■ Copper alloys, etc. * Please feel free to inquire about materials other than those listed above.

• Contract manufacturing

Our company offers "advanced processing" of various metals and alloys. With our unique processing technology and know-how, we can manufacture products tailored to your specifications. You can also choose the end face shape, so please feel free to contact us if you have any requirements or inquiries. 【Main Materials (excerpt)】 ■ Tungsten ■ Precious metals ■ Titanium alloys ■ Rhenium tungsten ■ Copper alloys, etc. * Please feel free to inquire about materials other than those listed above. * For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing

We offer various types of heat treatment for metals and alloys. With capabilities for tension annealing, solution treatment, aging treatment, and more, we can adjust tensile strength, hardness, straightness, and other properties to meet our customers' needs. Our self-developed heat treatment equipment can also handle heat treatment of ultra-fine wires with a diameter of less than φ0.005mm. Additionally, we can perform heat treatment processing for nickel-titanium, enabling the production of superelastic nickel-titanium (linear memory products). We are also able to handle heat treatment processing for supplied materials, so please feel free to contact us. 【Main Materials (excerpt)】 ■ Tungsten ■ Precious metals ■ Titanium alloys ■ Rhenium tungsten ■ Copper alloys, etc. * Please feel free to contact us regarding materials not listed above.

• Contract manufacturing

We offer "plating processing" for various types of metal wires. We can plate metals such as gold, silver, copper, zinc, and palladium onto various materials including tungsten, molybdenum, copper alloys, iron-nickel alloys, brass wire, and piano wire, among others. Our plating performance maintains a uniform surface without color variations and excellent adhesion. Furthermore, we can perform multiple platings (such as gold, nickel, and copper) on a single base wire. Additionally, we can accommodate requests for platings other than those mentioned above, as well as for metal wires that are generally difficult to plate, so please feel free to consult with us. 【Base Materials (Excerpt)】 　■ Tungsten　　　■ Molybdenum　　■ Copper Alloys 　■ Iron-Nickel Alloys　　■ Brass Wire, etc. 【Available Plating Types】 　■ Gold　　■ Silver　　■ Copper　　■ Nickel　　■ Palladium　　■ Tin-Copper *Please feel free to contact us regarding materials not listed above.

• Processing Contract

Our company offers "cladding," which involves joining dissimilar metals by applying pressure. We can insert tungsten, molybdenum, and nickel wires into platinum pipes, draw them out, and join them together. In addition, we also provide services such as "wire drawing," "straightening," and "rolling," so please leave all your processing needs for various metals and alloys to us. 【Main core materials】 ■ Tungsten ■ Molybdenum ■ Nickel *Please feel free to contact us regarding materials other than those listed above.

• Contract manufacturing

This document is a list and correspondence table of bobbin sizes used in surface treatment and heat treatment. It includes dimensions and weights for various types such as "252P," "105C," and "P-5R." 【Contents】 ■ Bobbin List - Dimensions (overall diameter, body diameter, shaft diameter, traverse width, overall width) - Weight - Material ■ Bobbin Correspondence Table - Wire drawing (tungsten-molybdenum, others) - Rolling - Plating - Surface treatment - Heat treatment - Cladding *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing

We offer various heat treatment processes such as tension annealing, solid solution treatment, and aging treatment. We can adjust tensile strength, hardness, straightness, and other properties to meet our customers' needs. Our in-house developed heat treatment equipment can also handle heat treatment of ultra-fine wires with a diameter of less than φ0.005mm. Additionally, we also provide heat treatment for nickel-titanium, enabling the production of superelastic nickel-titanium (shape memory alloys). We can accommodate heat treatment processes for supplied materials as well, so please feel free to contact us. 【Main Materials】 ■ Tungsten ■ Precious Metals ■ Titanium Alloys ■ Rhenium Tungsten ■ Copper Alloys ■ Stainless Steel ■ Molybdenum *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company can manufacture ribbon materials with continuous lengths by rolling wire through a roll press. Additionally, by utilizing Tokusai's ultra-fine wire technology, we can produce very thin and precise ribbon materials. 【Main Materials】 ■ Copper alloys ■ Stainless steel ■ Iron-nickel alloys ■ Nickel-titanium ■ Piano wire *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company offers surface treatments such as electropolishing, anodizing, and resin coating, as well as wire drawing of tungsten and molybdenum. In electropolishing, the metal surface is dissolved by applying current through an electrolyte solution between the metal wire and the electrode. At Toksai, we can control various materials and surface conditions by managing the electrolyte and conditions. Additionally, for tungsten, we can produce ultra-fine wires with a minimum diameter of φ0.0025mm. 【List of Surface Treatments】 ■ Electropolishing ■ Anodizing ■ Resin Coating *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company can produce fine and ultra-fine wires by carefully passing thick wire rods through our original in-house developed drawing machines multiple times by skilled craftsmen. For difficult-to-process materials such as tungsten and molybdenum, we perform drawing processing while heating, accommodating down to a minimum diameter of φ0.01mm. Additionally, in the soft wire drawing process, we can manufacture products with excellent straightness and flat surfaces by performing surface treatments (such as plating) and heat treatment. 【Types of Tungsten Wire】 ■TWG: Standard doped tungsten with added K, Al, and Si, excellent in non-sagging properties and workability. ■TWR: Tungsten with 3% Re added, outstanding in high-temperature strength and recrystallization properties. ■TWT: Tungsten wire with high high-temperature strength due to the dispersion of tria. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company can manufacture products tailored to customer specifications using our unique processing technology and know-how. The main materials for advanced processing include tungsten, precious metals, titanium alloys, rhenium tungsten, copper alloys, stainless steel, and molybdenum, among others. Please feel free to contact us regarding materials not listed above. 【Length and Tolerances】 ＜Product Length L (mm): Standard Tolerance (mm) / Special Tolerance (mm)＞ ■3–100 : ±0.2 / ±0.03 ■101–300 : ±1.0 / - ■301–600 : ±2.0 / - ■601–2000: ±5.0 / - *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company is capable of processing wire materials with ultra-fine wire sizes, good surface quality, and excellent straightness, thanks to our self-developed equipment and unique know-how. The main materials include tungsten, precious metals, titanium alloys, rhenium, tungsten-copper alloys, stainless steel, molybdenum, and others. Please feel free to contact us regarding materials not listed above. 【Wire Diameter and Tolerances】 ＜Product Wire Diameter (mm): Tolerance (mm)＞ ■φ0.015～φ0.050: ±0.002 ■φ0.051～φ0.100: ±0.003 ■φ0.101～φ0.200: ±0.004 ■φ0.201～φ1.500: ±0.005 *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract