Gambarotta Gschwendt is a respected worldwide manufacturer of solid bulk material handling equipment and provides conveying solutions for every sector.
With its almost 100 years of experience and thanks to its continuous Research & Development efforts, Gambarotta Gschwendt has been developing, designing and constructing hundreds of elevators, drag chain conveyors, pan conveyors, belt conveyors and other types of equipments suitable for the most different and severe requirements. The company’s equipment is used to handle a wide variety of commodities, including cement.
Through mining, cement, steelwork and waste industries experience, the company has developed a wide range of equipment, in order to face several different conditions and to guarantee the continuous operation of the factory.
Conveying machines and the other equipment supplied by Gambarotta Gschwendt are calculated to withstand the most severe environmental conditions and are able to handle even abrasive or hot material, operating 24/7 without any stopping. This makes it an ideal supplier to the cement industry.
Gambarotta EP-N ‘TIREX’: the multipurpose solution
The handling of material characterized by heavy specific weight, high dust content and big sizes has always represented a big challenge for bulk material equipment suppliers. This is especially the case for cement, mining and steel industries, which require a mechanical system that is able to withstand heavy loads and material. Other significant requirements in these fields typically concern the ability to receive different materials from trucks or off-tipper lorries at yard level, minimizing spillage in the unloading area.
There is another important point about the needed civil works: apron feeders and other types of conveyors usually require an appropriate project and an on-size concrete construction.
The answer to this big challenge has been found with the new Gambarotta Gschwendt EP-N Surface Feeder, the so-called ‘TIREX’, a new robust machine with a strong structure able to withstand the typical hard work encountered in mining areas and heavy industries. This special conveyor has been specifically designed for efficient discharge operations, with the possibility to adjust the flow rate of the conveyed material on demand optimizing the process time.
Strong design for great performances
The main structure of the ‘TIREX’ can withstand both large material unloading and the weight of the trucks which are placed on the rear side of the machine for discharge operations. Two wheel stoppers are installed on a service platform with the aim to keep the truck stand still, allowing the material to drop on the conveying pathway in total safety.
The service platform can also be designed to accept up to three trucks, operating on the three sides of the surface feeder at the same time.
The big inlet steel hopper is internally protected with anti-wear material and can include, depending on the EP-N model, one or more service chute, specially developed to slow down the dropping material before reaching the transport group.
A de-dusting cover placed on the overall top side of the ‘TIREX’ guarantees no dust leakage during the discharge and conveying operations, keeping the outer area clean and totally safe for workers. This cover includes a tall plastic curtain on the inlet section allowing the off-tipper truck to unload the material without any leakage, keeping the inner side protected from any contamination. At the top of the cover, a filter system can be placed for the de-dusting, including a top service platform for maintenance operations.
The EP-N transport group consists of a train of high quality steel plates, connected to a high strength steel chain on both sides and surrounded by a strong shear proof rubber belt. Basically, the pathway is composed of a straight horizontal track, where the material is initially discharged, followed by an inclined track in which the material is conveyed to the outlet chute. The width of the transport group goes typically from 2.6m to 6m and storage versions of the conveyor are even available. A layer limiter is properly positioned on the inclined section with the aim to level the material and to control the flow rate.
The hauling is provided by a reliable and powerful variable frequency drive system, placed on the top of the pathway of the surface feeder. Depending on the required machine capacity, the drive station can be supplied with single or double motorization and the feeding speed can be regulated according to the customer’s needs. The drive group, with its own powerful planetary gearboxes, can efficiently with­stand the peaks of power during the transportation guaranteeing continuous work and high reliability of the whole conveying system. The outlet side of the surface feeder includes a discharge chute made in anti-wear steel, which can be supplied with material concentrator, a mechanical device that allows to group the conveyed material in a certain point of discharge.
The overall structure does not require any special civil works, but only a solid concrete base and a ramp for the truck arrival. The machine has been designed with the option to be moved from one place to another without any permanent fixing to the ground. This feature makes the Gambarotta Gschwendt EP-W conveyor extremely versatile and flexible, a feature very appreciated by the customers.
The whole conveying system can be supplied also according to ATEX requirements when needed.

Quality first
The EP-N ‘TIREX’ surface feeder has been requested by mining plants, cement and steel industries getting a great success and customer’s satisfaction. Recently Gambarotta Gschwendt won two orders for the supply of five EP-Ns for China and a further four EP-Ns for South America.
The main technical features include:
* high strength structure;
* completely customizable;
* suitable for any kind of material, even abrasive or big sizes;
* no civil works required;
* mobile construction for extreme versatility;
* with de-dusting cover and filter system;
* no dust during the discharge of the material;
* anti-spillage platform underneath truck area available;
* conveying widths from 2.6m to 6m;
* weighing version available;
* restricted outlet version available;
* able to manage the discharge of three trucks at the same time;
* storage version available;
* high performance VFD drive system with single or double motorization; and
* available in ATEX versions.