Haitian's machines make 50000m long cable bridge for Beijing Winter Olympics

As the sole accredited cable bridge supplier for the 2022 Winter Olympics in Beijing, GRANDCHESS provided the temporary power supply there for the mega event – over a total length of around 50,000 meters.

According to GRANDCHESS, its existing injection molding machines were gradually replaced with Haitian Mars Series in order to meet even higher production standards.

That was in 2017, and the company has since mastered various tests and EU certifications, and its products are increasingly in demand in Europe, the U.S., Japan and many other countries. They have also won over the IOC.

As a safety product, a cable bridge is subject to extremely strict standards. The 4.5 kg elastomer cable bridges are made of high-strength rubber and high-quality PVC, with very high demands on material flow, surface, color quality and appearance. This requires high injection rates with precise temperature control.

In addition, special requirements applied to insulation, compressive strength (more than 50 t), flame retardancy as well as cold resistance at minus 30 degrees.

In total, GRANDCHESS supplied approximately 60,000 two-hole and cable bridges to equip the 2022 Winter Olympics, but “in a much shorter timeframe” rather than the usual 150 days, told Song Jiading, General Manager at GRANDCHESS.

“The timeframe for the entire process was tight, yet the quality requirements were higher. The machines had to be absolutely efficient and run stably,” Song Jiading brought up.

This refers to the ten machines of the energy-efficient, dynamic Haitian Mars Series (14,000 to 16,000 kN), which helped GRANDCHESS with precise temperature control and repeatability for the thick-walled molded parts.

In 24/7 operation, each machine produced about 400 cable bridges/day, with one cavity per mold.

Tests by the responsible authorities have shown that numerous product parameters of the GRANDCHESS cable bridges exceed the project requirements set by the IOC and mark a high level of quality.