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MAN16MG0

instructions

for

use

series

drh

1/2/3/4 -

dst

drt

2.1.1 Intended use - Foreseen use - Designated use

The electric wire rope hoist

is a machine

generally used to lift vertically in the

air

load by means of a

hook or

handling accessories suitable for the purpose.
When the hoist is coupled with a

trolley,

which runs at a height on one or two girders, it is capable of ensuring the

integrated handling of lifting and horizontal movements of the load.
All the lifting movements (of ascent or descent) or travelling (right or left)

dmust be activated electrically

and can

be controlled with a push- button panel or with a remote control system.

The electric wire rope hoist and the related trolleys,

installed at a height, can be fitted with monorails or constitute

the lifting unit of other machines in which they have been incorporated, such as: overhead travelling crane, gantry
crane, jib crane, etc. both in single and double girder versions.

The electric wire rope hoist,

positioned at a height or at ground-level, subject to appropriate safety checks and any

necessary forms of protection (see paragraph 3.4) can moreover be used in different configurations in a fixed position.

2.1.2 The range

The range of drh electric wire rope hoists series is produced in:

• 4 base series, DRH1 - 2 - 3 - 4, for capacities from 800 to 50.000 kg, in the FEM (ISO) service units - 1Bm (M3) -

1Am (M4) - 2m (M5) - 3m (M6).

• At a lifting speed carried out with a 4 -pole motor:

• 4 or 6 m/min for 4-fall wire rope hoists

• 8 or 12 m/min for 2-fall wire rope hoists

• 2,7 m/min for 6-fall wire rope hoists

• 2 m/min for 8-fall wire rope hoists.

• At two lifting speeds, with a 1/3 ratio, carried out with a 4/12 - pole motor:

• 4/1, 3 or 6/2 m/min for 4-fall wire rope hoists

• 8/2, 6 or 12/4 m/min for 2-fall wire rope hoists

• 2,7/0,9 m/min for 6-fall wire rope hoists

• 2/0,7 m/min for 8-fall wire rope hoists.

• 5 standard versions with short drum (C), normal drum (N), long drum (L) and extra long drum (X1) and (X2) for

hook runs from 4 to 58 m.

The drh electric wire rope hoists are available in the following standard configurations:

• In fixed execution:

(fig. 1)

Basic universal configuration, with fixing eye bolts which allow the hoist to be set down in any version, or to be

adapted to suspended execution.

• With electric trolley, single girder, type DST/N/S:

(fig. 2)

The DRH hoist is supplied with suspended execution on the normal trolley and articulated for curvilinear girders,

running on a single girder by electric drive.

• With electric trolley, single girder, type DST/R:

(fig. 3)

In order to exploit the hook’s run the DRH hoist is supplied set down in execution on the reduced headroom trolley,

running on a single girder by electric drive.

• With electric trolley, double girder, type DRT:

(fig. 4)

The DRH hoist can be assembled either in set down or suspended execution on the trolley, which runs along the

two girders by electric drive.
The trolley in the double girder configuration maximises the hook’s run of the hoist.

2. - DESCRIPTION OF THE MACHINE AND TECHNICAL INFORMATION

2.1

The electric wire rope hoist and related trolleys

Technical data and characteristics are explained in paragraph 2.2

The conception and structure:

• The DRH electric wire rope hoists and related electric trolleys are produced according to the conception of modu

lar components which, assembled together in relation to commercial needs, as well as the standard versions
always available in the warehouse, allow various normalized and special executions to be carried out rapidly and
economically.

• The basic components, motor, reducer and drum, thanks to the extreme compactness of the reducer group are

assembled together in coaxial line, to ensure maximum use of the hook path and minimum lateral encumbrance
of the hoist body.

The components are connected by high-resistance bolted couplings which can be inspected and fitted with self-
locking safety nuts to protect against unscrewing.

• The drum, on the equipment side, or from the side opposite the motoreducer, can be used for connection

with cycle counters, selectors, screw limit switches, encoders, safety brakes, etc. Moreover the drum,
being perfectly symmetrical, in special execution with right and left threading, allows the assembly of two
motoreducer groups which permit doubling of the lifting speed while keeping the lifting capacity and
vertical fall axis unvaried which, free from eccentricity, makes it particularly suitable for executions with
high hook runs.

• The structure uses the most advanced technology based on production processes of high industrialization and

allows the realization, by economies of scale, of totally reliable and technically innovative machines. A high level
of quality is guaranteed and checked by the company quality control system according to standard UNI EN ISO
9001:2008.

DRHCARRBITR

fig. 1

fig. 3

fig. 4

drhmon

drhmonrot

fig. 2

drhrib

instructions

for

use

series