Sumitomo General Catalog 2025-2026

Polycrystalline Diamond

Excellent wear resistance, longer tool life and high-speed, high-efficiency, high-precision cutting of non-ferrous metals and non-metals. SUMIDIA ® is a polycrystalline diamond material made from sintered diamond powder that was first created using our proprietary technology in 1978. SUMIDIA ® ’s superior wear resistance achieves longer tool life in high speed, high-efficiency and high-precision machining of non-metal and non-ferrous metal applications including aluminum, copper, magnesium and zinc alloys. SUMIDIA ® Binderless uses nano-polycrystalline diamond for the cutting edge, demonstrating excellent wear resistance and fracture resistance. In particular, it achieves extended tool life and machining accuracy superior to conventional polycrystalline diamond when machining hard brittle materials such as cemented carbide.

A

Features

● Diamond particles on the order of submicrons to several dozen microns, sintered at high density

Structure

NPD10 SUMIDIA ® Binderless

SUMIDIA ®

DA1000

DA2200

DA150

DA90

0.1μm

5μm

5μm

5μm

5μm

* Black areas in image are diamond particles

Diamond particles

Grade Map

Part Material

Application

Finishing to Light Cutting

Medium Cutting

Rough to Heavy Cutting

01

10

20

30

Classification

SUMIDIA ® Binderless

NPD10

Hard Brittle Material

SUMIDIA ®

DA90

N01

N10

N20

N30

Classification

DA1000

DA2200

SUMIDIA ®

Non-Ferrous Metal

DA150

DA90

A34

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