日本制钢所开发出可生产EV零件的镁射出成型机

寂静回声

Japanese injection-molding specialist JSW (Japan Steel Works) has unveiled a two-platen press boasting a clamping force of 4,000 tonnes — the most powerful electric-drive machine ever built. Strictly speaking, the unit is not fully electric: It employs a hydroblock locking system and a hydraulically assisted moving platen, a pragmatic choice for a press of this category.
Development was driven by the growing demand from electric-vehicle manufacturers for lightweight exterior parts such as bumpers and tailgates, as well as the conversion of electric-vehicle battery cases to plastic.
In the North America, IMM of this tonnage (until now mainly hydraulic) are also widely used for agricultural/industrial machinery, general merchandise and home-appliance industries, apart from the automotive industry.

Measuring 17.4 meters in length — nearly 10% shorter than a hydraulic press of equal tonnage — the new J4000F-22000H offers a maximum injection volume of 22,000 cm³ (18.6 kg in PP equivalent). JSW reports a very short dry-cycle time that lifts productivity by roughly 10% versus the latest hydraulic models. Proprietary electric drives ensure steadier output and faster machine start-ups.

Energy metrics are equally compelling: compared with conventional hydraulics in the same tonnage class, power consumption drops by 15-20%, cooling-water consumption is reduced by 50% and hydraulic-oil consumption by 70%. JSW calculates annual CO2 emissions can be cut by 15-20%, trimming operating costs by about one-fifth.

Key construction features include a space-saving, high-rigidity mold platen; a wide cross-section on the moving platen with large-diameter rollers for enhanced support; and a ladder-frame structure that keeps the bed level for a long-life machine.

https://www.jsw.co.jp/en/product ... ng_machine/mm_1600/

JSW 的战略是将这些大型设备与其现有的中小型设备系列相结合，为汽车供应商提供全面的“一站式”解决方案。
销售目标：力争到2028财年，镁合金业务的年销售额达到100亿日元。
增长预期：这一目标比当前水平增长了70%。
目标市场：主要聚焦于需求激增的中国电动汽车市场。为了在竞争中保持优势（特别是针对日益崛起的中国设备制造商），JSW 计划在2025财年推出新的1800吨级机型，并大幅缩短交付周期。