アルケー List of Products and Services

Features □ Made in Japan from materials to manufacturing □ Holder made of titanium, highly compatible with the human body □ Strong, lightweight, and flexible □ Can be disinfected with alcohol and sterilized with ultraviolet light □ Can be worn while wearing glasses □ Does not cause stuffiness □ Made of titanium, does not rust.

• Office supplies and stationery
• Non-ferrous metals
• others

The titanium plate has undergone "re-rolling" processing, and the surface finish of our rolled titanium plates is very good. As a result, we have received feedback that the subsequent process (polishing) has been eliminated, leading to a reduction in processing time with only finishing polishing required. The left photo shows the surface finish of a plate that has been rolled from 5.0mm to 3.8mm, a reduction of 1.2mm. We can cut the plate width and thickness to your desired dimensions using a shearing machine and perform re-rolling (rolling) processing to the specified thickness for delivery. ● Supported materials: Two types of titanium (TP340), copper alloys ● Size: 1219 x 2438 mm ● Plate thickness: 1.5/1.8/2.0/2.2/2.5/3.0/4.0/5.0/6.0 mm ● Rolling processing range: Plate thickness 0.8 to 6.0mm / Maximum material width 250mm  All materials are made in Japan, and mill certificates can be provided.  Rolling processing is also available from a single piece. Please leave the re-rolling (rolling) processing and shearing processing to us. 【Features】 ■ The surface finish after rolling is clean, making subsequent processes easier ■ Small lots (even from one piece) can be accommodated ■ Cut to custom dimensions using a shearing machine *Please feel free to contact us.

• Special Processing Machinery
• Processing Contract
• Contract manufacturing

Our company specializes in the "rolling processing" of two types of titanium (TP340) and copper alloy sheets. We focus on "cold rolling," which allows us to process materials without heating, resulting in a good glossy surface. We also accommodate small lot orders and can deliver products in dimensions tailored to your needs. 【Recommended for those who:】 ■ Want to achieve a glossy surface on metal… ■ Need to adjust sheet thickness in 0.01mm increments… ■ Want to improve the hardness of the sheet… ★ We are offering a document that outlines the features of our rolling processing! For more details, please check "PDF Download."

• Special Processing Machinery
• Contract manufacturing
• Processing Contract

Our company specializes in "wire drawing" performed by skilled technicians. We can process materials with high precision while keeping the surface smooth, and we have extensive experience in processing titanium in particular. This document explains the "wire drawing" that we undertake. It introduces the advantages and disadvantages of "wire drawing," as well as examples of its applications. [Contents] ■ What is "wire drawing" ■ Advantages, disadvantages, and application examples *This document can be viewed immediately via "PDF download." Please feel free to contact us with any inquiries.

• Processing Contract

The "POM (Polyacetal) Hinge Washer" is a high-quality hinge washer with excellent self-lubricating properties. The opening and closing of the temple is smooth, reducing the stress of flapping. It is effective in improving the struggle and has high durability of effect. 【Features】 ■ Excellent self-lubrication ■ High quality ■ Smooth opening and closing of the temple ■ Effective in improving the struggle ■ Long-lasting effect *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing

The "Optical Smooth Washer" is a metal hinge washer coated with a solid lubricant to enhance sliding functionality. The opening and closing of the temples is smooth, and the effect lasts. It has a high heat resistance specification of 600°C, and brazing and plating are also possible. Due to its excellent chemical resistance, it is strong against nitric acid and hydrofluoric acid. 【Features】 ■ Stress-free and comfortable eyewear life ■ High heat resistance ■ Excellent chemical resistance ■ Complies with food hygiene standards *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing

The "driver bit" is highly compatible with our screws (especially the OS series) and helps improve work efficiency. The tip of the bit is φ1.5. 【Features】 ■ Highly compatible with the OS series ■ Contributes to work efficiency ■ The tip of the bit is φ1.5 *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• driver

"Nylon lower thread" can be manufactured from hard nylon or fluorocarbon. Sizes 10 and 12 are always in stock. Please feel free to contact us for other sizes. 【Features】 ■ Manufactured from hard nylon or fluorocarbon ■ Sizes 10 and 12 are always in stock *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Plastic utensils and containers

The "hinge washer" is a washer for hinges. "OS washer (coated brass washer)" and "POM (polyacetal) hinge washers" are effective for improving resistance to jamming. The "OS washer" is a hinge washer coated with a solid lubricant, enhancing its sliding function. Additionally, the "POM (polyacetal) hinge washer" has excellent self-lubricating properties and is of high quality. 【Features (OS washer)】 - Effective for improving resistance to jamming - High heat resistance - Excellent chemical resistance - Complies with food hygiene standards - Stress-free and comfortable eyewear experience *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• bolt

The "cap" is a cap for two-point frames. It can be manufactured using nylon or Delrin®. 【Features】 ■ Can be manufactured using nylon or Delrin® *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• bolt

The "T-shaped washer (plastic)" is a cushioning material for lens fixation in two-point frames. It can be manufactured using nylon, polycarbonate, or Delrin®. 【Sizes】 ■φ3.0×0.5×1.4×φ1.5 ■φ3.0×0.5×2.3×φ1.5 *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• nut

The "Flat Washer (Plastic)" is a cushioning material for lens fixation in two-point frames. It can be manufactured from nylon, polycarbonate, or Delrin®. 【Size】 ■φ3.0×t0.5×φ1.5 *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• nut

The 'Yohaku Flat Washer' is a cushioning material for lens fixation in two-point frames. Please feel free to contact us for sizes other than φ2.8×t0.3×φ1.45. 【Size】 ■φ2.8×t0.3×φ1.45 *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• nut

The 'Yohaku Flower Shape Nut' is a flower-shaped nut for lens fixation on a two-point frame. *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• nut

The 'Nickel Silver Hexagonal Bag Nut' is a hexagonal bag nut for lens fixation on two-point frames. 【Size】 ■2.25×2.0×M1.4 *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• nut

The 'Yohaku Hex Nut' is a hex nut for securing lenses on a two-point frame. [Size] ■2.25×1.0×M1.4 *For more details, please visit our website or feel free to contact us.

• Processing Contract
• Contract manufacturing
• nut

"Hex screws" are the lens fixing screws for two-point frames. They are available in SUS and brass. 【Size】 ■SUS ・2.25×1.0×10.0/12.0 M1.4×0.3P ■Brass ・2.25×1.0×10.0 M1.4×0.3P *For more details, please visit our website or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

The "SUS Resin Coated Screw" reduces loosening by applying resin to the threads of SUS screws. There are nylon and silicone types available, and processing is done in Japan. We use resins that comply with RoHS and REACH standards, ensuring safety. 【Features】 ■ Resin is applied to the threads to reduce loosening ■ Resins compliant with RoHS and REACH standards are used ■ Nylon and silicone types are available for selection ■ Processing is done in Japan *For more details, please visit our website or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

"SUS screws" are general screws made of SUS-XM7. They can be used in various situations, such as when you want to keep costs down or for temporary fastening. Please also consider using sizes like M1.3, M1.5, and M1.8 for cases of stripped threads (screw damage). Typically, the head shape is pan, but truss and flat head options are also available. 【Features】 ■ General screws ■ Used when you want to keep costs down or for temporary fastening ■ Compatible with stripped threads (screw damage) ■ Head shapes available include pan, truss, and flat *For more details, please visit our website or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

The "SUS Tapping W Screw" can be tightened using only a pilot hole. It does not require tapping, features an angled thread design, making it easy to tighten and resistant to loosening. It is commonly used in plastic frames. 【Features】 ■ Can be tightened using only a pilot hole ■ No tapping required ■ Easy to tighten and resistant to loosening ■ Commonly used in plastic frames *For more details, please visit our website or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

The "SUS Torx® Screw" has a hexalobular drive profile on the screw head. Since the bit and recess make contact on multiple surfaces, torque is transmitted efficiently, and there is almost no stripping of the drive profile. Additionally, it has a vibrant appearance and excellent design quality. (Bits are available for purchase.) 【Features】 ■ Hexalobular drive profile on the screw head ■ Efficient torque transmission ■ Almost no stripping of the drive profile ■ Vibrant appearance and excellent design quality *For more details, please visit our website or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

We handle various types of deformed wire made from materials such as pure titanium and stainless steel, and we are capable of manufacturing various types of deformed wire. All materials are made in Japan, and we can also provide mill sheets. We will provide you with delivery times and prices, so please feel free to contact us first. 【Features】 ■ Steel types: Pure titanium, stainless steel ■ Capable of manufacturing various types of deformed wire ■ All materials are made in Japan ■ Mill sheets can also be provided *For more details, please refer to the PDF document or feel free to contact us.

• Steel
• Other metal materials

We handle plate materials made of pure titanium, beta titanium (15333), stainless steel, and other steel types. All materials are made in Japan, and we can also provide mill sheets. Additionally, we can cut and deliver to your requested sizes. We can arrange for thicknesses that are not normally in stock, so please feel free to contact us first. 【Features】 ■ All materials are made in Japan ■ Mill sheets can be provided ■ Can cut and deliver to your requested sizes ■ Can arrange for thicknesses that are not normally in stock *For more details, please refer to the PDF document or feel free to contact us.

• Steel
• Other metal materials
• Non-ferrous metals

We can deliver round bars as straight materials according to our customers' requests. Please specify the desired length. The materials are pure titanium (2 types) and β-titanium (15333). All materials are made in Japan, and we can also provide mill certificates. 【Features】 ■ Delivery as straight materials is possible ■ Custom lengths can be accommodated ■ All materials are made in Japan ■ Mill certificates can be provided ■ Materials include pure titanium (2 types) and β-titanium (15333) *For more details, please refer to the PDF document or feel free to contact us.

• Steel
• Other metal materials

Steel types: Pure titanium (2 types), β titanium (Ti-22V-4AL, 15333), Ti-3AL-2.5V Our "round wire" is mainly used for parts in glasses, watches, and bicycles. We use our original machinery to draw the wire according to the material properties, resulting in a uniform structure with no variation in wire diameter. This round wire is designed for ease of use in the next process (the process performed by the customer) and to pursue the beauty of the final product's finish. Additionally, since we draw the wire in-house, we can accommodate detailed requests such as variations in hardness and dimensional adjustments. 【Features】 ■ All materials are made in Japan ■ Mill certificates can be attached ■ No variation in wire diameter ■ Capable of accommodating variations in hardness and dimensional adjustments *For more details, please refer to the PDF document or feel free to contact us.

• Steel
• Other metal materials

"SUS + special flat screws" have an extremely thin head, eliminating the need for countersinking, which leads to cost reduction. Even after fastening, they maintain a smart appearance and excellent design quality. They are compatible with a #0 bit. 【Features】 ■ No need for countersinking ■ Cost reduction ■ Excellent design quality ■ Compatible with #0 bit *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

The "SUS OS-W Lock" is a pad screw that is difficult to fall off. The OS lock function provided on the screw thread and the wedge function on the head seating surface securely engage with the female thread and box hole, demonstrating a double (W) anti-loosening effect. It prevents the pad screw from falling off. 【Features】 ■ Fits tightly into the box hole with the wedge function ■ Stays securely attached to the female thread with the OS lock function *For more details, please refer to the PDF materials or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

The "SUS OS-HB Lock" is a hinge screw with an OS lock feature designed on the screw threads that securely grips the female thread to reduce loosening. Additionally, the resin pipe at the neck fits snugly with the single piece, preventing screw drop-out while providing an ideal "struggle." This is a high-performance hinge screw that combines two functions: the screw part and the resin part. 【Features】 ■ OS lock function reduces screw loosening ■ Resin pipe prevents hinge wobbling *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

The "SUS OS Lock (S)" is a versatile screw that exhibits anti-loosening effects with just the male thread. Thanks to the OS lock feature, it provides anti-loosening effects with the male thread alone. Additionally, it maintains a consistent torque even after repeated use. Since it does not require resin processing for anti-loosening, it is environmentally friendly and low-cost. It is a reliable screw with over 10 years of proven performance. 【Features】 ■ Can be reused ■ No concerns about deterioration like with resin-processed screws *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing

"Rerolling (rolling) processing" and "shearing processing" create "thickness" not found in standard products, as well as "hardness" and "surface roughness" anticipated for the finished product. We will process according to your requirements. We will cut the plate width and thickness to custom dimensions using a shearing machine and perform rerolling (rolling) processing to the specified thickness for delivery. TP340 Size: 1219 x 2438 mm Plate thickness: 1.5/1.8/2.0/2.2/2.5/3.0/4.0/5.0/6.0 mm Please leave rerolling (rolling) processing and shearing processing to us. 【Features】 ■ Thickness and finish not found in standard products ■ Produces hardness and surface roughness ■ Processing possible according to your requirements ■ Cutting processing with a shearing machine to custom dimensions *For more details, please refer to the PDF document or feel free to contact us.

• Special Processing Machinery
• Processing Contract
• Contract manufacturing

The groove wire is used in the rim of glasses (the part that holds the lenses). In addition to delivery on spools, we also accept orders for bending processing of groove wire to match the design of the eyeglass lenses. We manufacture the molds for creating groove wire in-house and design them meticulously down to the details, ensuring that the mechanical properties of the finished groove wire are stable. Additionally, during bending, the groove wire has no variation and is easy to wind. The full groove V angle is symmetrical, and the shape of the nylon groove is stable, so only one type of cushion is needed. 【Features】 ■ Delivery on spools is possible ■ Bending processing can be applied for delivery ■ Molds for groove wire are also manufactured in-house ■ All products are made in Japan ■ Mill sheets can be attached *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other contract services
• Other processing machines

Our company offers a wide range of processing capabilities, including cutting, brazing, casting, surface treatment, and forming such as shaping and bending. We manufacture various shapes through cutting. 【Features】 ■ Cutting ■ Manufacturing of various shapes *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other contract services
• Other processing machines

Our company offers a wide range of processing capabilities, including cutting, brazing, casting, surface treatment, shaping, and bending. In "press processing," we manufacture parts using pressing. If you have any drawings or specifications, please feel free to consult with us. 【Features】 ■ Manufacturing parts through pressing ■ Custom processing according to drawings *For more details, please refer to the PDF materials or feel free to contact us.

• Other processing machines
• Processing Contract
• Other contract services

Our company offers a wide range of processing capabilities, including cutting, brazing, casting, surface treatment, special shapes, and bending. In "laser processing," cutting is performed using a laser. If you provide us with a drawing, we can cut it to your desired shape and deliver it to you. We can accommodate various materials, including titanium, beta titanium, and stainless steel. 【Features】 - Cutting with a laser - Can cut to your desired shape if a drawing is provided - Compatible with various materials such as titanium, beta titanium, and stainless steel *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines
• Processing Contract
• Other contract services

Our company primarily processes 'materials' used in products such as glasses, watches, and bicycle parts. Among these, we take pride in our extensive experience and achievements in titanium processing, which requires high levels of skill and knowledge. Examples of our processing include: - "Round wire" with uniform structure and no variation in wire diameter - "Grooved wire" that has no variation during bending and is easy to coil - "Straight materials," "sheet materials," and "shaped wires." All materials are made in Japan, and we can also provide mill sheets. 【Case Study: Round Wire】 ■ Shape: Coil ■ Steel Types: Pure titanium (Grade 2), β-titanium (22V4AL, 15333), Ti-3AL-2.5V ■ Features: - Wire drawing tailored to the material properties using our original machinery - Focus on usability in the next process (i.e., the process performed by the customer) and the aesthetic finish of the final product - Ability to accommodate fine details such as variations in hardness and dimensional adjustments *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• Other metal materials

At Alke Corporation, we function as a materials trading company supplying metal materials, while also serving as a manufacturer that processes materials in our own factory. We provide total support from material supply to technical support and the establishment of distribution lines. We deliver all the eyewear components that our customers need, from assembly parts such as special screws and washers to finished products, in the required forms. 【Various Eyewear Parts (Partial)】 ■SUS Screws ■SUS Resin-Coated Screws ■Hex Screws ■Brass Hex Nuts ■Brass Hex Socket Nuts ■Brass Flower Nuts ■Brass Flat Washers ■Flat Washers (Resin) ■T-Type Washers (Resin) ■Caps ■Hinge Washers ■Hinges, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• others
• bolt
• Processing Contract

We would like to introduce examples of products from Arke, which manufactures and sells materials such as titanium, and engages in parts manufacturing and processing, featuring our "processing technology." In "laser processing," cutting is performed using a laser. If you provide us with a drawing, we will cut it to your desired shape and deliver it to you. We can accommodate various steel types, including titanium, β-titanium, and stainless steel. Additionally, we offer "press processing" for manufacturing parts using presses, as well as "machining" that can create various shapes. 【Features】 < Laser Processing > ■ Cutting is performed using a laser ■ If you provide us with a drawing, we will cut it to your desired shape and deliver it ■ We can accommodate various steel types, including titanium, β-titanium, and stainless steel < Press Processing > ■ Parts are manufactured using presses ■ We are available for consultations if you have drawings or other specifications < Machining > ■ Capable of producing various shapes *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Other processing machines

Our company processes a variety of materials, including titanium, which requires high technology and deep knowledge, and we take pride in our track record of meeting even the most challenging requests with precision down to 0.01 millimeters. Experts who have honed their skills from material selection to processing provide a one-stop service from consultation to delivery. In addition to our extensive experience with titanium and eyewear components, we also handle a wide range of materials and applications in metal processing. 【Business Activities】 ■ Parts manufacturing and processing ■ Material manufacturing and sales ■ Consulting *For more details, please download the PDF or feel free to contact us.

• bolt
• Processing Contract
• Contract manufacturing