The Amagasaki Plant started in 1981, and was the first to successfully recycle tungsten carbide by pyrometallurgy in Japan, and obtain the ISO9001 and ISO14001 certificates.

Japan is a country without many rare metal mines. Sintered hard metal scraps, used hard metal tools and products, are a precious mineral resource. The collection system and recycling is an important issue that can only be resolved by a shared vision between industry, government, and the citizens. The Amagasaki plant’s cumulative knowhow over the years has gained trust from our customers.

  • icon-Dust CollectionDust Collection

1Collection of Scrap Metals

We collect sintered hard metal scraps from sources as different as the automobile industry, general contractors, and machining factories.

プロセス超硬-回収スクラップ

2Sorting

We sort the scrap according to the composition of Tungsten, Cobalt and other elemtns.

プロセス超硬-選別
分析

3Zinc Treatment Process

The sorted scrap goes under the Zinc treatment process and becomes porous.

プロセス超硬-亜鉛処理
分析

4Pulverisation

The output of the zinc process is pulverised in several steps to obtain a uniform particle sizes.

  • アイコン-集塵処理
プロセス超硬-粉砕

5Drying

The slurry is dried after the wet pulverisation process to yield our product.

  • アイコン-集塵処理
プロセス超硬-乾燥
最終検査

6Product

After rigorous quality control analyses, our products are sold and fabricated into hard metal tools.

プロセス超硬-製品