CASTEM List of News Articles

Castem Co., Ltd. will exhibit at the "Monozukuri World Fukuoka - Mechanical Elements Technology Exhibition" held at Marine Messe Fukuoka from December 3 (Wednesday) to December 5 (Friday), 2025. Under the theme "Changing the Common Sense of Prototyping with Moldless Casting," we will introduce our moldless casting technology "Digital Cast," which offers the shortest delivery time of one week. Experience our new technology that combines precision lost-wax casting techniques developed since our founding with the latest 3D printing technology at our booth. Additionally, we will once again conduct our popular casting demonstrations! Visitors will receive a novelty made from metal that dissolves in hot water as a gift on the spot. We invite you to enjoy a unique "see, touch, and understand" manufacturing experience that only Castem can offer at our booth. 【Exhibition Overview】 Dates: December 3 (Wednesday) to December 5 (Friday), 2025, 10:00 AM to 5:00 PM Venue: Marine Messe Fukuoka (7-1 Okihamacho, Hakata Ward, Fukuoka City, Fukuoka Prefecture) Location: Hall A / Booth Number: 1-5 For more details, click here: https://prtimes.jp/main/html/rd/p/000000261.000035017.html

"Pure Copper Heat Sink," produced by Castem Technology Laboratories (CTL) based in California, USA, won the overall championship at the American Investment Casting Institute (ICI) casting contest and was featured in their journal. This product is a pure copper heat sink equipped with fine pins, measuring 52×28×13 mm and weighing 64 g. The array of fine pins has a diameter of 1 mm and a height of 4 mm, with a total of 752 pins arranged at a pitch of 1.15 mm. It is a crucial component of immersion cooling systems used in high-performance computing computers' GPUs (the heart of AI) in data centers necessary for AI. The fine shape is achieved through gypsum casting using sacrificial molds made by a resin 3D printer, followed by vacuum melting and pressure casting. Post-processing is limited to finishing a single integrated port, allowing for seamless assembly of parts with high dimensional accuracy within ±0.5 mm. Castem manufactures precision metal parts for various industrial sectors, including semiconductor and aerospace-related fields, using a variety of manufacturing methods. Please feel free to contact us through our website or other means.

Castem Co., Ltd. will exhibit at "Mechatrotech Japan 2025," which will be held at Port Messe Nagoya from October 22 (Wednesday) to October 25 (Friday), 2025. In the themed exhibition zone "Processing Techniques Supporting Healthcare," we will showcase a miniature model of a laparoscopic surgical instrument (forceps) that has been meticulously crafted. In collaboration with ROKKO Smart Technology Co., Ltd., we will demonstrate the mold processing of the finest components of this miniature model using the ultra-high precision high-speed micro-machining machine "Android3." Attendees will have the opportunity to directly experience our "technological prowess encapsulated in a tiny world." We invite you to stop by during this special occasion! 【Exhibition Overview】 Date: October 22 (Wednesday) to October 25 (Saturday), 2025, 10:00 AM to 5:00 PM Venue: Port Messe Nagoya (2-2 Kanjo Futo, Minato Ward, Nagoya City) Exhibition Location: 3rd Exhibition Hall, Concept Zone A Content: Organizer's planned exhibition "Machining Live! Processing Techniques Supporting Healthcare - Learning Success Tips from Different Industries -" - Display of a laparoscopic surgical set approximately 95 mm in length - Demonstration of mold processing using Android3 and seminars - Display of other miniature products, MIM products, digital cast products, etc.

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

Castem manufactures and sells "SADAKO," a metal reproduction of Sadako Sasaki's origami crane, combining precision casting technology with the latest digital technology. The initiative was prompted by the challenge of preserving and passing on the origami cranes of Sadako, who lost her life due to the atomic bomb dropped on Hiroshima. Currently, there are about 100 cranes remaining with the Sasaki family and the Hiroshima Peace Memorial Museum. Although there have been requests for donations from both domestic and international sources, the number is limited, and it is not possible to meet all requests. Being made of paper, the cranes deteriorate over time, and proper preservation requires specialized knowledge and expensive equipment. To address these challenges, Castem utilized 3D scanning and precision casting technology to accurately reproduce Sadako's origami cranes. The stainless steel SADAKO, which faithfully replicates the texture of the paper and the creases, can be preserved permanently and conveys a message of peace to the world. SADAKO was presented to the leaders of various countries at the G7 Hiroshima Summit in 2023, and it will be gifted to Pope Francis in 2024 and former President Obama in 2025, playing a role in spreading the wish for peace globally. Castem believes in the symbolic power of this story and the origami crane, and aims to contribute to peace by continuing to promote the project of delivering SADAKO to people around the world.

We sincerely thank you for your continued patronage. We regret to inform you that we will be closed during the Obon holiday period as follows: ● Closure Period: August 9, 2025 (Saturday) to August 17, 2025 (Sunday) Inquiries received during the closure period will be addressed sequentially starting from August 18, 2025 (Monday). We apologize for any inconvenience this may cause and appreciate your understanding. ● Orders placed through our online shop "IRON FACTORY" and the Rakuten shopping site "CASTEM" will still be accepted via the internet during the closure period. Product shipping and inquiries will be addressed sequentially starting from August 18, 2025 (Monday). We appreciate your understanding and cooperation.

We will be exhibiting for the first time at the "2nd SPEXA International Space Business Exhibition" to be held at Tokyo Big Sight from July 30 (Wednesday) to August 1 (Friday), 2025. 【Exhibition Overview】 Event Name: "SPEXA International Space Business Exhibition" Dates: July 30 (Wednesday) to August 1 (Friday), 2025, 10:00 AM to 5:00 PM Venue: Tokyo Big Sight South Exhibition Hall (3-11-1 Ariake, Koto-ku, Tokyo) Exhibition Location: South Hall 3, S5 - 30 Castem boasts a top-class share in the contract manufacturing of general industrial parts through precision casting. In recent years, we have also been actively engaged in the aerospace business, including rocket components. At this exhibition, we will thoroughly introduce our increasingly requested technology, "Moldless Express Casting Digital Cast," which is part of our metal shape material services. We sincerely look forward to your visit. ↓ You can register for an admission badge from the link below ↓ https://www.spexa.jp/tokyo/ja-jp/register.html?code=1405804379407060-ZYC

Castem Co., Ltd. will be exhibiting at the "Monozukuri World Tokyo - Mechanical Components Technology Exhibition" held at Makuhari Messe from July 9 (Wednesday) to July 11 (Friday), 2025! We will showcase our proud casting and metal processing technologies as we celebrate our 55th anniversary this year. Attendees will have the opportunity to experience our lost-wax precision castings developed since our founding, presentations on our mold-less casting technology "Digital Cast," and live casting demonstrations, providing a real technical experience. Please also make use of our technical consultation booth where you can compare optimal manufacturing methods. 【Exhibition Overview】 Event Name: "Monozukuri World Tokyo - Mechanical Components Technology Exhibition" Dates: July 9 (Wednesday) to July 11 (Friday), 2025, 10:00 AM to 5:00 PM Venue: Makuhari Messe (2-1 Nakase, Mihama-ku, Chiba City, Chiba Prefecture) Exhibition Booth Number: Hall 3, 14-1 Smooth entry is possible with pre-registration. We look forward to seeing you there! ↓ You can register for your entry badge from the link below ↓ https://www.manufacturing-world.jp/tokyo/ja-jp/register.html?cat=visitor

The "touchable" model of Kenchoji Temple was conceived by the Universal Picture Book Library UniLeaf (represented by Toshie Oshima, located in Hayama, Kanagawa Prefecture) with the concept of allowing visually impaired individuals to feel historical buildings with their hands, enabling them to share the excitement of travel together. Subsequently, it received support from many donors through grants from the "Support Each Other Fund" and crowdfunding, leading to its production. To realize the concept of feeling historical buildings by touch, a 1/50 scale miniature of the Kenchoji Temple Buddha Hall was meticulously recreated in bronze, paying close attention to detail. Our company was responsible for the production of the castings, which consist of approximately 30 parts. This in-house technology utilizes a casting method called "Digital Cast," which excels in producing unique, one-of-a-kind items without the need for mold fabrication. The model has been permanently installed in front of the Kenchoji Temple Buddha Hall since the day after the ceremony, allowing visitors to touch it freely. If you visit Kenchoji Temple in Kamakura, please take a look. [Manufacturing Responsible] Prototype resin model production and casting machining: JMC Corporation Casting (moldless casting "Digital Cast"): Castem Corporation