• Phone: +49 (0)7251 / 61869 30
  • info@west-bau.com

Slide LOW MAINTENANCE, EFFICIENCY, QUALITY, RELIABILITY, INNOVATION founded in 1970 Rozzi S.p.A. range of over 500 Rozzi products. ROZZI

Polyp-grabs are hydraulic equipment suitable for the handling of bulk materials: scrap, urban waste, industrial waste, machine shop rejections, rocks, paper, cardboard, plastic, wood and tires. The RP range is the compact version with the cylinders partially inserted inside the grabs to reduce the height; the RV range has vertical outside cylinders fixed to a strong structure. Protections and guards prevent damages to pipes and cylinders.

All models can be supplied with a rotation device. The geometry of the tines is optimized to promote the penetration and collect as much material as possible. To meet every need and ensure high performance with all materials, the following types of blade are available: P – PA – S – SL. The steelwork and cylinders are made with materials of high quality and durability, while the parts subject to abrasion are made of wear-resistant steel HB400.

The pins and bushings are manufactured using special steel with heat treatment for hardening, so as to ensure a long life even under severe conditions and with poor lubrication.

ER
The ER series are electrically powered lifting accessories which incorporate an electrohydraulic control unit within the grab body. This means the units only require electrical supplies to operate.
This type of equipment can be installed on harbour cranes or overhead cranes and are used in,
– Steel plants,
– incinerators and biomass plants,
– for the handling of waste and slag,
– for loading and unloading of ships,
– in any business where it becomes necessary to move large volumes of materials.

The grabs of the ER range are available in two versions: EV and REV

EV: equipped with a Rexroth piston pump and electro-distributor that allows the opening and closing of the equipment while maintaining the electric motor in operation in the same direction of rotation.
The plant is equipped with valves that allow,
– Pressure control.
– The control of the tines during the closure to avoid cavitation.
– Maintaining the pressure of the tines even with the motor off or when the pump is in stand-by mode.
– Protecting the circuit from overloads induced by excessive stress.
The special configuration of the system, the oversizing of the components, the use of variable displacement pumps and the possibility of calibration differentiated between opening and closing, allow a continued use of the equipment without the risk of overheating.

REV: the reversible version is equipped with a Parker piston pump, the opening and closing are obtained by reversing the direction of motor.
The plant is equipped with valves that allow,
– Control of the pressure differentiated in closing and opening.
– The control of the tines during the closure to avoid cavitation.
– Maintaining the pressure of the tines even with the motor off.
– Protecting the circuit from overloads induced by excessive stress.
The use of a pump with high performance and the presence of an unloading valve on the closing side of the circuit make the equipment suitable even for heavy work.

The steelwork is made ​​of high quality and resistant materials while the parts in contact with the product are made of wear-resistant steel.
The pins are made of hardened / tempered alloy steel and the bushings are in hardened and tempered steel.
This solution enables a long service life even in difficult conditions and with poor lubrication.
The cylinders, designed and manufactured by a specialized division of Rozzi SpA, through the use of high performance seals and the use of high quality and resistant materials, are able to withstand heavy stress in aggressive environments with high durability.
All cylinders are equipped with sliding protection and there is an additional outer protection structure in the polyp-grabs.

On all ER equipment, the following options are available:
– Heavy duty metal electrical connectors, shock resistant and suitable for use in aggressive environments with high contamination, available in various configurations of poles and with protection up to IP68.
– Chains for connection to lifting equipment.
– Sensors for controlling the operation and for signaling anomalies.
– Control system of the equipment by remote control.
– Only for the EV version it is possible to use a pump with a constant power to allow the use of an electric motor of lower power.

The Demolition and Sorting Grabs RS are designed and manufactured to perform the demolition of brick buildings and allow the selection of different materials resulting from this work; they are also used for the handling of rubble, waste, wood and stones. Given their characteristics, they can be used to speed up the rescue operations in case of natural disasters.

They consist of two tines with synchronized movement which are pivoted to a strong frame-work.
The equipment is equipped with a strong hydraulic rotator, rigidly connected to the excavator arm to ensure maximum precision work.

The cylinders are equipped with a safety valve that prevents accidental opening in the event of sudden pressure drops. Interchangeable bolted edge are provided on request. Careful design and innovative manufacturing processes ensure reliability and maximum performance even in harsh working conditions.

The steelwork and cylinders are made of high quality and durable materials while the parts subject to abrasion are made of wear-resistant steel HB400. The pins and the bushings are made of special steel with heat treatment for hardening, so as to ensure a long life even with poor lubrication.

The timber grabs are hydraulic equipment suitable for the loading of logs, branches, beams, railway sleepers, pipes and round products.They consist of two tines designed with the optimal shape for maximum load, they are pivoted on a robust frame-work with synchronized movement. Hydraulic rotators are available for all models. The cylinders are equipped with a safety valve that prevents inadvertent opening of the grab in the event of sudden pressure drops. The use of special steels and high-quality materials combined with modern manufacturing techniques ensure high performance and long life even in harsh conditions.

Clamshell Buckets are hydraulic equipment which are available in two main categories: for digging: with vertical cylinders and the profile of the tines is designed to ensure a high penetration; for loading: with horizontal cylinders so as to reduce the overall height and geometric design of the tines allows maximum filling.

The loading version is used for the movement of earth, sand, gravel, RDF, mud, cereals, coal, fertilizers, industrial and agricultural waste, minerals, etc.. All models can be supplied with or without teeth and equipped with hydraulic rotator.

The steelwork and cylinders are made of high quality and durable materials while the blades, which are subject to abrasion, are in wear-resistant steel HB400/500.

The pins and the bushings are made of special steel with heat treatment for hardening, so as to ensure a long life even under severe conditions and with poor lubrication.

DOWNLOAD PDF INFO HERE