Nissei Plastic Industrial Co., Ltd., recently developed a new hybrid type vertical injection molding machine “TWX220RIII25V,” which offers one of the industry’s lowest machine heights with a 2,110kN (220ton) clamping force. Nissei accepts orders starting on May 1st.
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TWX220RIII25V Type |
“TWX220RIII25V” was developed from the best-selling hybrid type vertical machine “TNX-RIII Series,” which was widely used in many insert molding industries, such as automotive and electronics parts. It is equipped with a new compound type clamping mechanism and offers low-profile structures throughout the machine.
The most notable feature of this machine is the compound type clamping mechanism that materializes smaller machine size. It consists of a high-speed cylinder, high-pressure clamping cylinder, and half-nut mechanism, which replace a conventional type cylinder that controls both high-speed clamping and high-pressure clamping with one clamping cylinder. Because of this new mechanism, the mold mounting height is lowered to 1,000mm (about 30% lower than the conventional machines), making mold installation/setup, insert, and product takeout easier than ever before.
The overall machine height is about 10% lower, offering excellent flexibility for the installation space (height).
Other features:
1. It is equipped with a direct-pressure type clamping mechanism that evenly transmits clamping force. It is resistant to temperature change, generating consistent clamping force according to the setting. Setting optimal (low) clamping force, which is gentle to the mold, is easy, and its simple and clean mechanism maintains the machine precision for a long time.
2. Amount of the required hydraulic oil amount is reduced by 52%, thanks to the new compound type clamping mechanism (saving resources and cost).
3. Its optimized bed structure permits flexible robot layout. It can easily be adapted into automated systems with takeout robot, articulated robot, and two-arm robot ideal for different molded products and molding processes. Its design permits easy conversion to 3-stage mold mounting face.
4. It is equipped with a 3-tie-bar wide turntable, and the mold open/close stroke and maximum daylight opening are 100mm wider, accommodating more complex and larger molds.
5. Turntable rotation and ejector motion are driven by servomotor, achieving faster cycle, smooth mechanical motion, and high rotation stop precision. It can prevent the misalignment of the inserts.
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Height comparison of the new and old machines (Left: New TWX220R / Right: Old 220t Type) |
Features of “TACT IV” controller:
1. 15-inch color LCD touch panel screen can arrange two windows vertically, materializing superior visibility and operability.
2. It offers improved quality/production management by making operation history and monitor data search easy as well as enriching the maintenance function.
3. Its fast 500µs control cycles can benefit smaller volume precision molding.
4. 6-language (Japanese, English, Chinese, Spanish, Korean and Thai) display capability comes standard.
5. LAN and USB ports come standard.
A concept machine was exhibited at Nagoya Plastic Industry Exhibition last October. Since the expo was held in Tokai region, the area where many automotive parts suppliers who need vertical machines are located, it was well-received for its compact design that revolutionizes the concept of the vertical injection molding machine.
These new 220-ton machines are scheduled to be produced 40 units per year.
