Mode of operation. Combination of the characteristic of the Double Roll Crusher with the performance of the Sizer. Crushing of feed material by teeth of the two counter-rotating rolls. Successive comminution of larger lumps. Product particle size regulated by precise setting of the roll gap. Opening of the gap between the crushing rolls in case

Company. Based on several own patent applications Crush + Size Technology GmbH & Co. KG manufactures Double Roll Crushers. Crush + Size is especially focused on research and development of crushing roll geometries in order to make crushing more effective and efficient than known in

Innovative technology for economic processing. Crush + Size Technology manufactures double roll crushers based on several technical innovations.In particular, the focus is on the research and development of crushing roller and crushing tool geometries in order to carry out comminution processes much more effectively and efficiently than with conventional or previously known double roll crusher

Double roll crusher technology redefined. Comminution with a Crush + Size crusher is based on the innovative, patented crushing tool design. It enables the use of very high teeth with a small crushing gap, so that a direct feed of the feed material is ensured with a high crushing ratio at the same time

Crusher The Fields Of Application The Feed Materials Roller crushers are used mainly for crushing easily fractured materials such as soft limestone, chalk, and clay to between 1/3 and 1/5 of its original size Double roll crushers are used for both, primary and secondary crushing. They guarantee a strictly defined final grain size

Working principle of Double roll crusher. A roll crusher crushes using compression, with two rolls rotating about a shaft, towards the gap between the rolls. The gap between the rolls is set to the size of product desired, with the realization that the largest feed particle can only be 4 times the gap dimension

Roll crushers have a theoretical MAXIMUM reduction ratio of 4:1. If a 2 inch particle is fed to the roll crusher the absolute smallest size one could expect from the crusher is 1/2 inch. Roll crushers will only crush material down to a minimum particle size of about 10 Mesh (2 mm). A roll crusher crushes using compression, with two rolls

For a given reduction ratio, single-roll crushers are capable of reducing ROM material to a product with a top size in the range of 200–18 mm in a single pass, depending upon the top size of the feed coal. Double-roll crushers consist of two rolls that rotate in opposite directions

Progress in Roll-Crushing. BY C. Q. Payne, New York, N. Y. On the right, a Roll Crushers is shown in a sectional elevation of the A-C single-roll crusher while here below is a cutaway view of the machine, with hopper and part of the near side frame removed to show the crushing chamber. The moving elements of the machine consist of the roll, with its supporting shaft and driving gear, and the

Figure 1: Double roll crusher geometry 2.1.5 Thickness of the RollFigure 1 is the geometry of a double roll crusher with a spherical particle about to enter the crushing zone of a roll crusher and is about to be nipped [4], [5]. For rolls that have equal radii and length, tangents drawn at

reduction cycle. Generally gyratory crushers, jaw crushers, high speed double roll crushers, low speed sizers, impactors and hammer mills are used as primary crushers. In the secondary and subsequent stages, the material is further reduced and refined for proper size and shape, mostly based on specifications

Slow sizer speeds maximise tooth wear life due to a more effective bite on the incoming feed. Rolling with the punches. Our single-step roller crusher consists of two rollers with cast bosses. One of the roller shafts is adjustable while the other has a fixed position, supplied by a flywheel

The full HMI Controlled Panel Interface on the roll sizer provides easy fine tuning for accurate application performance and provides visual data output such as engine load and fuel consumption. Combining a twin tooth rotor design and a single deck pre-screen allow fines to pass through either before the material reaches the chamber or by falling between the crushing rolls without being further crushed

Sampling Sizers/Roll Crushers. Sample Double Roll Crushers and Mini-Sizers are simply smaller-scale versions of the Double Roll Crusher and Direct Drive Crusher (DDC) product groups for which McLanahan has become well known. These machines retain the key features and benefits of the larger machine designs but are packaged into compact, cost-effective solutions specifically tailored to

McLanahan Double Roll Crushers feature slower roll speeds and a larger surface area to add prolonged life to the crushing elements, resulting in less maintenance downtime and decreasing your cost per ton. Double Roll Crushers generate minimum fines while producing a cubical product. McLanahan Double Roll Crushers are designed for safety and many years of rugged operation

Single vs. Double Roll Crushers. Choosing between a single roll crusher and double roll crusher depends upon the type of feed material, feed size, product size desired, and consistency of both feed and product. Both single and double roll crushers operate most efficiently with dry, friable materials

8 rows It can reduce most rock-like materials of 0.5in (13mm) feed size to minus No. 10 (2mm) at a

Feb 24, 2016 Although its brief period of popularity passed some thirty-odd years since, and only a few sets were installed before interest reverted to other types, the high-speed double roll crusher developed by Thomas A. Edison shortly before the end of the last century warrants a place in any discussion-of crushing equipment. In 1960, the largest machine of this type the 6 x 7 foot “giant” rolls were huge