Chinese Professional Flat Bellows Cover - Steel Material Protection Telescopic Covers – JINAO

Telescopic covers provide durable protection of slideways and precision machine components from all types of chips ,coolant and dust . Optional components can be integrated to improve durability speed, and access to the machine. Telescopic covers are used to proctect machine parts from metalic parts and dust

Today, modern machine tools process workpieces at ever-greater cutting and travel speeds. The protection of guideways, measuring systems, drive elements and other valuable parts is absolutely essential. Accelerations and speeds of machines are constantly increasing. Telescopic covers must also be able to cope with these challenges. This is where telescopic covers with harness mechanisms are used.

Until the 1970s, telescopic covers seldom moved in speed ranges any greater than 15 m/min. The expansion and compression of the individual boxes took place sequentially. Due to the low speed, there was hardly any impact noise. Over the years, however, Improvements in drive technology have increased the travel speeds of the machines and thus also the speeds of the cover. At high travel speeds, the impact pulse exerted on the cover becomes truly enormous. This results in loud impact noises. What is more, the telescopic cover is subjected to very large mechanical stresses. The landscape for telescopic covers has changed greatly in the last few years. “Old” designs are less and less in demand, with modern concepts such as covers with differential drives taking their place.

Telescopic covers are generally produced from cold-rolled uncoated thin plates in thicknesses from 1 to 3 mm. In case of extremely aggressive environmental conditions (e.g. aggressive cooling lubricants), corrosion-resistant stainless steel plates may also be used.

At speeds below 15 m/min a telescopic cover can still be built in the conventional form of box synchronization. At higher speeds, however, the inevitable impact noises become clearly audible and unpleasant.

Application

Telescopic covers are ideal for any machine tool application requiring complete protection of machine ways and ball screws. Telescopic way covers protect against dropped tools, heavy chip loads, cutting, oils, and coolants.