Notice of Website Renewal

We provide a one-stop service for parts processing of various materials, surface treatment, and inspection, achieving stable supply of parts with a minimum estimate of half a day.

The area of response for procurement of processed parts covers all 47 prefectures in Japan! We provide precision processed parts with small lots, prototype development components, quality assurance included, and delivery management. By eliminating invisible costs, you can focus on improving your original productivity. We solve the complexities of purchasing and procurement, as well as the challenges related to manufacturing, to maintain quality and enhance productivity. "30 years of proven results! Over 1,110 partner companies!" Point 1: Supports single-item processing and small lots of various types. Point 2: Consolidates contact points with a dedicated technical sales guarantee system. Point 3: Inspections are conducted at our quality control center, specializing in quality assurance. Point 4: Drawings for estimates can be in either 3D or 2D. Point 5: We can handle drafting even without possible drawings. Point 6: We have a wide range of industry experience, including automotive, semiconductors, food, and medical sectors. Point 7: You can request parts made from various materials, including metals and plastics. "Commitment to Quality and the Environment" We have established an environmental management system compliant with ISO 14001 and promote environmental conservation activities. Aiming for "zero quality defects," we conduct final inspections in our quality control department. From metals to resins, leave the cutting and processing of prototype and development parts to us.

• Processing Contract

We provide the shortest half-day estimate and can immediately procure a variety of processed parts made of metal and resin, including surface treatment and inspection, in small quantities.

To maintain excellent quality and further enhance productivity, we will resolve the complexities of parts procurement. We will reduce the time and costs associated with procurement, allowing you to focus on improving your core productivity. "For example, if you are facing issues like these..." - You want to maintain stable supply through risk reduction by minimizing rework and additional processing. - It's challenging to communicate with various processing companies for a wide variety of parts. - You are unsure which materials and processing methods are best... - You don't need many parts! One or two are sufficient... - You want to lower costs! Due to rising material prices, etc. - You need parts immediately! You're struggling with delivery times. → Please leave such concerns to us! - Over 30 years of experience! More than 1,110 partner companies! - We handle everything from single-item processing to a wide variety of materials and processing methods! - Our company manages parts procurement → surface treatment (hardening, polishing) → inspection all in one go, so you only have one point of contact. - We conduct inspections as well! A reliable double-check system. - We can work with both 2D and 3D drawings! We can even create drawings from scratch if you don't have any. From metals to plastics, we are your go-to for cutting processing of prototype and development parts.

• Processing Contract

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without affecting the base material with heat. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

SPACECOOL Co., Ltd. is pleased to announce that it will exhibit at the "Japan Pavilion" established by the Ministry of the Environment at the 30th Conference of the Parties to the United Nations Framework Convention on Climate Change (COP30), which will be held in Belém, Brazil, from November 10, 2025. "SPACECOOL" is a radiative cooling material that enables zero-energy cooling by dissipating heat into space. At our exhibition booth, we will showcase examples of its use not only in reducing air conditioning energy in buildings but also in heat mitigation measures (adaptation strategies) for tents and parasols. The Japan Pavilion aims to promote excellent technologies, products, and services that support global decarbonization and adaptation to climate change, and to achieve Japan's long-term climate change goal of "net zero by 2050." We believe that our participation plays an important role in this endeavor. Through this exhibition, we aim to accelerate our initiatives with local partners in regions severely affected by heat issues, such as the Middle East, including Saudi Arabia and the United Arab Emirates, as well as Southeast Asia, contributing to global decarbonization and climate change measures.

Castem Co., Ltd. will exhibit at the "Monozukuri World Osaka - Mechanical Components Technology Exhibition" held at Intex Osaka from October 1 (Wednesday) to October 3 (Friday), 2025. We will showcase lost-wax precision casting and MIM (Metal Injection Molding) products, as well as introduce our new technology, mold-less casting "Digital Cast." In addition to our popular casting demonstrations, we will present case studies that solve issues related to metal parts. Please utilize our "Technical Consultation Booth" to learn about optimal manufacturing methods tailored to your needs, from ultra-small lots to mass production. 【Exhibition Overview】 Dates: October 1 (Wednesday) to October 3 (Friday), 2025, 10:00 AM to 5:00 PM Venue: Intex Osaka (1-5-102 Nanko-Kita, Suminoe-ku, Osaka City, Osaka Prefecture) Exhibition Booth Number: Hall 6, B Hall 51-1 Pre-registration allows for smooth entry. It is convenient to register via the URL below before your visit. We sincerely look forward to your attendance. https://www.manufacturing-world.jp/osaka/ja-jp/register.html?code=1431877272389396-VEK