Electric wire rope hoist - DRH Series
23Pages

ELECTRIC WIRE ROPE HOIST DRH SERIES

ELECTRIC WIRE ROPE HOIST DRH SERIES The most reliable and safe way to lift your loads. The DRH electric hoist range is studied to always guarantee the maximum continuity of the job. Thanks to their strength and reliability, they allow conditions of maximum safety with loads of up to 50,000 kg. Designed to last over the years and meet the various types of use, the DRH series has earned a prominent position internationally, allowing us to supply our customers with products that can offer a wide range of uses, long-term reliability, safety guarantees during all operating phases and excellent...

TROLLEYS The combination of the hoist with an electric trolley, which runs on a beam, allows the creation of an integrated system for lifting and horizontal movement of the load. All lifting (raise and lower) and traverse (right and left) movements are activated by a push button pendant or radio-control system. The electric wire rope hoist and trolleys can be mounted overhead and fitted with monorails or act as the lifting unit for other machines, including: cranes (bridge, gantry, job, etc.) monorail and double girder. POWER AND SAFETY AT YOUR SERVICE

THE ELECTRIC WIRE ROPE HOIST RANGE DRH series electric wire rope hoists and relative electric trolleys are manufactured based on a modular component design, assembled together based on application needs and make it possible to quickly and inexpensively create many standardised and special executions. To guarantee maximum use of the hook run and minimum overall lateral dimensions of the hoist body, the basic components, (motor, gearbox and drum) are assembled in a coaxial line, with high strength bolted connections. Each connection can be inspected and has self-locking safety nuts. The drum...

THE DRH SERIES ELECTRIC WIRE ROPE HOIST RANGE FIXED EXECUTION WITH ELECTRIC TROLLEY, MONORAIL, TYPE DST/N/S AND TYPE DST/R WITH DOUBLE GIRDER TROLLEY, TYPE DRT FIXED EXECUTION This is the universal, basic configuration, with fixing eyebolts that allow any version of DRH hoist fixing on a frame or to be adapted in a suspended execution. ELECTRIC MONORAIL TROLLEYS, TYPE DST/N/S The DRH hoist is supplied in suspended execution with the normal trolley or articulated trolley for curved beams, it runs on a single beam and is operated electrically. ELECTRIC MONORAIL TROLLEY, TYPE DST/R DOUBLE...

minimum coefficient of utilisation has been selected to comply with I Machinery Directive]. An elastic system automatically registers any the ISO standard 4308-1:2003. Non-twist ropes are used on DRH play or wear. The rope guide is equipped with sliding backlash arms hoists with 2 falls and long (L) and extra long, 1st size (X1) drums, and made of brass, which, by acting on the hoist stay bolts, function as on 2 and 4 fall hoists with extra long, 2nd size (X2) drums. raise and lower limit switches. This is made of flexible steel, highly resistant to strain and wear. The excellent winding of...

DESIGN AND CONSTRUCTION MONORAIL ELECTRIC TROLLEY, TYPES DST/N - S - R NORMAL - ARTICULATED - LOW HEADROOM These are normally composed of an idler unit and drive unit, each equipped with two wheels made of mechanically machined pressed steel and mounted on permanently lubricated ball bearings. The wheels of the drive unit are opposing, have a crown gear wheel and are connected to each other by a transmission bar in the normal (N) and low headroom (R) versions. The articulated version (S), is equipped with a double gear motor, both of which directly give the wheels the movement. The steel...

CONFORMITY TO NORMS AND REGULATIONS The hoists and their trolleys are designed and manufactured taking into consideration the “Essential Safety Requirements” in Annex I of the EU Machinery Directive 2006/42/EC and are placed on the market and EC Declaration of Conformity, as per Annex IIA of the same Directive. In addition, DRH series hoists and their trolleys comply with the following Directives: DESIGN AND CONSTRUCTION Donati Sollevamenti S.r.l.’s continuous focus on quality is not just seen in its careful designing, responsible choices and constant testing of materials, production phases...

OPERATING LIMITS, OPERATING CONDITIONS AND LIFE SPAN THE STATE OF STRESS Is evaluated considering the average entity of the loads lifted and is ascribable to one of the four spectrums load shown below which determine the type of service. 1) Light The nominal lifting capacity of the hoist must be ≥ the actual lifting capacity. Lifting capacity = kg Hoists which rarely lift maximum loads but mainly reduced loads. Hoists which lift approximately the same number of maximum, medium and reduced loads. Hoists which frequently lift the maximum load but normally medium loads. Hoists which regularly...

According to the type of use, that determines the stress level and calculation of average daily use time, for lifting and/ or travelling, the following table can be used to classify the group and the related mechanisms and select the type of hoist in relation to the capacity. Once the type of hoist is identified, it is important to check the related life in terms of hours of service and total number of cycles in 10 years of operation. 19 LIFE SPAN OF THE LIFTING EQUIPMENT FOR EXAMPLE: Capacity = 6300 kg Level of stress = 2) Medium Load Actual hook run = AHR 2.5 M N° of cycles per hour = C/h...

IDENTIFICATION OF THE HOIST AND RELATIVE TROLLEYS rope fall configuration «• (single-grooved drum) TECHNICAL SPECIFICATIONS AND DATA capacity kg type of trolley on the hoist KEY AND EXAMPLE OF IDENTIFYING CHARACTERISTICS OF THE HOISTS AND TROLLEYS USING CODES Hoist speed: S =1 Speed W =2 Speed Gearbox type: © M-Cylindrical = Slow 4 m/min with 4/1 falls © S-Cylindrical = Fast 3 m/min with 8/1 falls 4 m/min with 6/1 falls 6 m/min with 4/1 falls 12 m/min with 2/1 falls L = Slow 2 m/min with 8/1 falls 2.7 m/min with 6/1 falls 4 m/min with 4/1 falls 8 m/min with 2/1 falls V = Fast 6 m/min with...