Meiki MDMI DVD CD Injection Mold Tool w/ Adjusters Quick Change Kata Systems

Meiki MDMI DVD CD Injection Mold Tool w/ Adjusters Quick Change Kata Systems

This is a steel injection mold tool from Meiki Co., Ltd. (Ohbu City, Aichi, Japan), designed for molding DVD and CD optical discs on injection molding equipment. The mold is of multi-section construction with clearly labeled injection side (INJ SIDE), cutter side (CL SIDE), sprue out, and cutter out ports on the mold faces. It includes water-cooling circuit ports with quick-change fittings and integrated adjusters. Meiki is a well-known Japanese manufacturer of optical disc injection molding machinery and tooling, and this mold is associated with Kata Systems disc production equipment.

Specifications & What's Included

• Brand: Meiki Co., Ltd. — Ohbu City, Aichi, Japan
• Model: MDMI
• Application: DVD / CD optical disc injection molding
• Mold type: Multi-section steel injection mold die
• Labeled faces: CL Side, INJ Side, Sprue Out, Cutter Out, Cutter In
• Cooling: Water-cooled with multiple cooling line ports
• Quick-change fittings present (red and blue) on manifold block
• Integrated adjusters included
• Lifting eye mounted on top of mold body
• Ejector rods visible on front face, intact
• Central sprue bushing/gate on platen faces
• Stamped part reference: 4513 (visible on rear mold face)
• Japanese patents: 21386号 / 新型第119740号
• Compatible with: Kata Systems DVD/CD injection molding machines

Applications

Injection mold tooling of this type is used in the high-volume production of optical discs — DVDs, CDs, and related formats — on dedicated disc replication injection molding machines. The mold is clamped into the platens of the injection molding press, where molten polycarbonate is injected at high pressure through the sprue to form a disc substrate in a fraction of a second. Water cooling circuits within the mold rapidly cool the formed disc before ejection. Meiki Co., Ltd. was a prominent supplier of optical disc injection molding equipment and tooling, particularly from the 1980s through the 2000s, when disc replication was a major manufacturing industry worldwide. Kata Systems was an associated brand used in this disc manufacturing context. This type of mold tooling remains of interest to disc replication facilities still operating legacy lines, tooling engineers, and collectors of optical disc manufacturing equipment.