Haitian boosts injection speeds of fully electric presses

Haitian International will unveil its latest developments in its fully electric injection molding machines at K 2013 (Düsseldorf, Germany; Oct. 16-23) as it eyes continued acceleration into the most demanding markets such as medical, packaging and electronic.

Nearly 3000 of its Zhafir Venus II Series have been sold since their introduction in 2007. The company says that sales numbers double each year, and its engineers continue to optimize the machines.

Haitian factory No. 11 in Ningbo, China.

In Chungxiao, Ningbo, a new plant is being built with a production area of 120,000 m² and capacity for up to 10,000 machines per year. 

At the present, the best injection unit performance provides speeds up to 350 mm/s.

Prototype nears roll-out

"But that's not the end of the story," says Fu Nanhong, chief engineer of Haitian. "More than 95% of components with thin walls require an injection speed of 500 mm/s, and that's what we're working on. Take, for example, one of the most popular smart phones of the 2011/2012 generation. Whereas our 350-mm/s Venus produced minimum wall thicknesses of 0.5-0.6 mm, the follow-up model now has wall thicknesses of only 0.3-0.4 mm."

The Venus II Series is now available with clamping forces of 400, 600 , 900, 1200 , 1500, 1900, 2300, 3000, 3600, 4500, and 5500 kN (561 tonnes).

New developments in the Venus II that will be shown at K 2013 include:

  • The distances between tie bars have been increased and adjusted to meet international standards for machines with clamping forces of 2300 kN and more;
  • Up to eight injection units are available for each clamping force;
  • Motors in the Haitian drive systems now provide faster acceleration rates, improved energy savings, and rapid reaction times, and they can be fine-tuned to their inverters. In the standard design, the result is an increase in injection performance to 200 mm/s in injection unit models up to 430 and 160 mm/s in the higher models up to 3350;
  • The new design of the injection unit is more compact. A swiveling injection unit permits rapid replacement of the screw and facilitates access for maintenance work.







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