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Panel Hoist
Sophisticated technology hoists China's molding industry
By using advanced machinery and technology, China's molding and tooling suppliers are able to release better-quality products faster.
China's molding and tooling industry is investing in measures to boost overall capability. Companies are bringing in advanced equipment and technology from Switzerland, Japan and Taiwan.
In addition to improving the quality of output, such machinery can produce oversize molds for 65in TV housings and 2m generator blades, and electric car and solar panel component molds that are precise to 2 microns.
Among the imported equipment now being used are CNC lathes, and die-casting and drilling machines. CNC lathes from Taiwan have a repeat location accuracy of 1 to 5 microns and can therefore yield very precise pieces. In contrast, locally made units can only go as low as 10 microns. Further, domestic mold-making machines yield molds with bad surface finishes, which affects the quality of the finished product as well.
Sophisticated technology, meanwhile, improves not only efficiency but also the lead time. As such, a growing number of midsize companies are following the footsteps of larger enterprises and integrating CAD/CAM/CAE, 3D and high-speed processing technologies.
Previously, workers at Sunny Mold & Plastic Products Co. Ltd had to carry out additional bench work after the raw molds were finished by CNC lathes to smoothen the surfaces. Adopting high-speed process technology has now eliminated that step as molds already have a smooth surface finish.
The use of advanced equipment and technology reduced lead time at Dongguan Qili Mold Co. Ltd by 20 to 50 percent. New molds now need just 10 days to finish, while simpler ones can be available in five to seven days.
Sophisticated machinery and technology, however, will bring little improvement to quality and efficiency if not handled by highly trained technical staff. As there are not enough skilled workers in the country, mold and tooling companies do their best to retain such employees. Gold Space Metal Products Co. Ltd, for instance, provides regular training to keep the technical team updated on new technology. Most of the company's skilled workers have been working at the factory since it was established in 2003.
Shenzhen Die & Mold Technology Society deputy secretary general Luo Baihui said demand for technicians is so high that their monthly salaries are often 1,000 to 2,000 yuan ($149 to $297) more than regular production line staff.
This has encouraged several vocational schools to include related courses in their curriculum. Among those offered by the Shenzhen Shen De Technical School are mold design and CNC machining, mechatronics, and mold design, programming and operation. So far, all graduates of molding-related courses have quickly found employment.
Read the full report at Global Sources, a leading business-to-business media company and a primary facilitator of trade with China manufacturers and India suppliers, providing essential sourcing information to volume buyers through our e-magazines, trade shows and industry research.
About the Author
Global Sources is a leading business-to-business media company and a primary facilitator of trade with China manufacturers, providing essential sourcing information to volume buyers through our e-magazines, trade shows and industry research.
How much does the rear piece of a Wrangler Unlimited three-piece hardtop weigh?
I have a 2008 Wrangler Unlimited Sahara with the Freedom three-piece hardtop. The front two top panels were very easy to remove and pretty light. The rear piece is a lot bigger and is bolted to the body. Does anyone know about how many pounds the rear piece weighs and how difficult it is to remove by two people without a hoist?
I am not sure of the weight, but it is a pretty easy job for 2 people of average strength. It is more and issue of being awkward than being heavy. You may want to have an extra person around just in case but it shouldn't be a problem for 2.
Used Jessup Hoist. Automatic lift with control panel. #948