Rubber productivity and quality are optimized with hydraulic direct drives.

Hydraulic direct drives are the competitive alternative to the traditional electro-mechanical drives, according to the company's 16-page, four-color brochure. The firm's hydraulic drives are said to be particularly applicable when excellent speed control is requested, together with a controllable high torque throughout the whole speed range.

The company's drives are said to utilize standard components and the motors are said to be easy to install on the driven shaft, with no need for gear reducers or foundations. The power unit can be placed beside or outside the machine area to give the best space utilization.

Features of the company's high torque drive systems are said to make them ideally suited for the rubber industry and applications such as roll mills, internal mills, calenders, twin screw sheeters, extruders, etc.

With a drive system from the company, the internal mixer can work throughout the whole speed range without the limits imposed by large size gear boxes, thus preventing the risk of overheating the batch or overloading the electric motors, according to the literature.

The unique performance of the drive system is said to make it possible for manufacturers to mix a wide range of tough compounds and optimize the production.

Drives for twin extruder/roller die machines and roll mills are highlighted in the literature. Mixed compounds of rubber and other elastomers are homogenized, further mixed, broken down, pre-heated and rolled out in roll mills. The mixing and homogenization are achieved by friction between the rolls running at different speeds. The company's drive solutions are said to provide for different speeds and friction ratios.

Hagglunds

www.hagglunds.com

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