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  1. Home
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  3. キャステム
Medical and Welfare
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キャステム

EstablishmentFebruary 7, 1970
capital7996Ten thousand
number of employees335
addressHiroshima/Fukuyama-shi/1808-1 Mikuyacho Nakatsuhara
phone084-955-2221
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last updated:Nov 26, 2025
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  • Products/Services(65)
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キャステム Company Profile

A lost-wax precision casting company with 55 years of experience. With technology that has been elevated by "half a step," we empower the people who create things.

With a posture of "just half a step" without complacency, we have cultivated "lost wax precision casting" over many years. In 1991, we obtained a U.S. patent for "MIM (Metal Injection Molding)." Utilizing 3D printing technology, we offer next-generation precision casting technology called "Digital Cast." We provide optimal proposals through various technologies! We thoroughly support our customers' manufacturing processes! We specialize in complex three-dimensional shapes in small lots of various types and carry out everything from mold making to casting, machining, and simple assembly in-house. We supply products to various industries, including medical devices, semiconductors, machine tools, and aerospace. "Just make it, from one piece." We can propose a wide range of manufacturing methods from prototype production of one piece to mass production. We enable time savings in searching for various suppliers and considering consultation destinations, becoming a true total cost reduction partner by proposing reductions in management costs associated with consideration time and product costs. More than half a century ago, Castem's casting began with handmade machine tools. Today, we have become a company with the top domestic share in the manufacturing of general industrial parts using lost wax and are also engaged in the production of micro lenses and micro needles using the world's highest precision 3D light shaping technology.

Business Activities

■Lost wax precision casting ■MIM (Metal Injection Molding) ■Digital molding (3D printed products, mold-less cast products), etc. ■Resin printer (ultra-fine 3D molding nanoscribe, color 3D printing) ■CT scan (non-destructive testing) services

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Products/Services (65)

Lost wax precision casting: Cost reduction through optimal shape modification and integration. product image
Lost wax precision casting: Cost reduction through optimal shape modification and integration.
Transitioning from Cutting Methods: Improving Lead Time and Costs for Small Metal Parts product image
Transitioning from Cutting Methods: Improving Lead Time and Costs for Small Metal Parts
Lightweight and cost reduction: Solving metal component issues with lost-wax precision casting. product image
Lightweight and cost reduction: Solving metal component issues with lost-wax precision casting.
Three advantages of metal 3D printing that accommodates complex shapes and special materials with short lead times! product image
Three advantages of metal 3D printing that accommodates complex shapes and special materials with short lead times!

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catalog(4)

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Try and do type

Try and do type

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Lost wax, MIM

Lost wax, MIM

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Technical data

Technical data

TECHNICAL
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Foundry's Crafting Recipe

Foundry's Crafting Recipe

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news(10)

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Notice of Year-End and New Year Holidays from Castem Co., Ltd.

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Thank you very much for your continued patronage. We sincerely apologize for the inconvenience, but we will be closed during the following period for the year-end and New Year holidays. ▶ Closed Period: December 27, 2025 (Saturday) to January 4, 2026 (Sunday) Inquiries received during the closed period will be addressed sequentially starting January 5, 2026 (Monday). We apologize for any inconvenience this may cause and appreciate your understanding. Orders through various online shops will be accepted 24 hours a day via the internet. ───────────────────────────── Castem Co., Ltd. 1808-1 Nakatsuhara, Miyuki-cho, Fukuyama City, Hiroshima Prefecture, 720-0004 TEL: 084-955-2221 (Main) FAX: 084-955-2065 https://www.castem.co.jp/ ─────────────────────────────

Dec 17, 2025

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Introducing mold-less casting in as little as one week by Castem Co., Ltd. Exhibiting at "Monozukuri World Fukuoka Machine Element Technology Exhibition."

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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 the lost-wax precision casting techniques we have cultivated since our founding with the latest 3D printing technology at our booth. Additionally, we will once again hold our popular casting demonstrations! Visitors will receive a novelty item 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

Nov 28, 2025

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Castem Co., Ltd. Pure Copper Heat Sink Wins First Place at the American Casting Contest

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"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 shapes are achieved through gypsum casting using sacrificial molds made by resin 3D printing, 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 components for various industries, including semiconductor and aerospace-related fields, using a variety of manufacturing methods. Please feel free to contact us through our website or other means.

Nov 26, 2025

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Detailed information

Company name キャステム
number of employees335
Contact addresspostalcode 720-0004 Hiroshima/ Fukuyama-shi/ 1808-1 Mikuyacho NakatsuharaView on map TEL:084-955-2221 FAX:084-955-2065
Industry Medical and Welfare
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