Haitian Machinery Co. Ltd., which makes injection molding machines in China, displayed seven presses at NPE 2003 in Chicago.
Kingsley Qi Qin, president of the North American division based in Canada, acknowledged that the market is difficult right now. But he said Haitian is here to stay.
``Our company has a commitment to the market,'' he said
The 2,000-employee machinery company in Ningbo, China, opened Haitian Machinery Canada Co. Ltd. in 2001. Qi Qin said Haitian plans to open a U.S. facility. ``We are going to build another one in the United States very quickly,'' he said.
At NPE, Qi Qin did not give more details or provide a specific timetable. He also declined to say how many machines Haitian has sold in North America so far.
Haitian showed every major injection technology in Chicago, including:
* An HTK58 two-platen press, available in a 64-ton clamping force. The tie bar also works as the piston rod for the moving platen, which is supported by a linear roller guide. For high-speed movement, a small-diameter cylinder is used for mold opening and closing. Clamping, too, is achieved by a small cylinder. Energy savings is achieved through the use of a variable pump and proportional direction valves.
* A 97-ton, all-electric press, the HTD88. Features include a low-speed stage during injection, mold protection and precise movements at an accuracy of 0.01 millimeter.
* An HTWJ-2 hydraulic press with a second-generation variable drive. An inverter motor and a closed-loop servo drive control pressure and volume on demand, which eliminates energy loss when oil is dumped over a relief valve in competing systems. A special pressure transducer circuit increases performance and repeatability. A gear pump and inverter motor were designed to be long and thin, greatly reducing system pulsing and inertia of the motor, Haitian said.
* A press with vertical clamp/vertical injection, called the HTVS-60-52-P. Double hydraulic cylinders provide stability and a high level of injection force. It comes in a clamping force of 56 tons.
* A 207-ton, high-speed press, the HTH188, aimed at thin-wall parts. An electric servomotor runs screw plasticizing. Haitian said the press can approach injection speeds of 800 millimeters per second.