Winch Accessories for Fire Brigades Rotzler

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					                                                                        FACT                                               01.2012




Winch Accessories                                                       For fast, safe and successful operations:
                                                                        winch accessories made by ROTZLER                     2


for Fire Brigades                                                       Rope exit with patented rope trumpet

                                                                        Deflection and double pull with snatch block
                                                                                                                              2

                                                                                                                              2

                                                                        Attaching a load while deflecting the direction
                                                                        of rope pull                                          3

                                                                        Doubling the pulling force by attaching the rope
                                                                        to an external anchor point (double pull)             3

                                                                        Doubling the pulling force with a second
                                                                        anchor point on the chassis (double pull)             3

                                                                        Double pull to the rear with deflection unit          4

                                                                        Load-securing gear for safe loading                   4

                                                                        Load-attachment points on the recovery vehicle        5

                                                                        Securing the recovery vehicle                         5




                         Shackle
                Frated
                                   Frated
                                            Snatch Block


                                                           2 x Frated

                Frated

                                   Frated


                         Rope Trumpet
FACT                                         Winch Accessories for Fire Brigades

For fast, safe and successful operations: winch
accessories made by ROTZLER
                                                                   steel rollers found with propeller rollers. The plastic insert
                                                                   of the rope trumpet is easy and quick to exchange and
                                                                                                                                               Deflection and double pull using a snatch block
                                                                                                                                               The snatch block is used to deflect the rope or to double the
ROTZLER has been developing winch systems and acces-               lengthens the service life of the steel rope. Moreover,                     pulling force during winch operation, which is to say when
sories for recovery and rescue equipment for many decades.         replacing the plastic insert is less expensive than putting                 recovering and moving loads resting on the ground up to an
Solutions that are tailored to suit real-life conditions are       additional strain on the expensive and safety-relevant rope                 embankment angle of 45°. When operating the winch in
implemented in close cooperation with internationally leading      at the steel rollers of a propeller roller. In addition, when               double-pull mode, the force needed to move a load is halved
vehicle manufacturers and users. From covers for rope              using propeller rollers, rope wear increases as soon as the                 because the load is distributed over two strands of rope.
trumpets to rope lugs, ROTZLER provides useful accessories         rope rollers no longer run smoothly due to insufficient care                The snatch block must be attached in a professional manner
for rope deflection, doubling the pulling force, securing          or excessive wear. ROTZLER’s lightweight and compact                        using sufficiently dimensioned securing gear that corre-
vehicles and much more. ROTZLER accessories ideally                rope trumpet is suitable for space-saving installation                      sponds to the pulling force of the winch. The snatch block




                                                                                                                                                                                                                   ROTZLER_FACT_01.12 Technical data are subject to change without notice. Copyright: ROTZLER GMBH + CO. KG
complement vehicles equipped with hydraulic ROTZLER                in any vehicle chassis. It is also available as part of the                 must not be wedged in or otherwise hindered in its freedom
winches. Available individually or as a system, all products       ROTZLER deflection unit for doubling the pulling force                      of movement. The various models of the ROTZLER snatch
feature ROTZLER’s tested brand quality and not only stand          (see description below).                                                    block are designed to deliver pulling forces of 140, 220 and
for the highest degree of safety and user-friendliness, but                                                                                    500 kN and are dimensioned to suit the associated rope
also guarantee a long service life.                                                                                                            diameters. The large diameter of the snatch-block roller
                                                                                                                                               lengthens the service life of the rope. Furthermore, optimised
Rope exit with patented rope trumpet                                                                                                           materials go to reduce the weight of the snatch block, which
The rope trumpet patented by ROTZLER helps the rope to                                                                                         is therefore quick and easy to attach by a single person.
exit the vehicle and is suitable for full-load diagonal pulls up
to 25°. ROTZLER offers three versions for pulling forces of 70,
110 and 250 kN. The rope trumpet ensures the rope always
runs over a large radius. The high-quality plastic insert
reduces rope wear in comparison to using the conventional




Rope trumpet 70 kN                 Rope trumpet 110 kN             Space-saving installation of the rope trumpet on the front of the vehicle   ROTZLER snatch block 140 kN



ROTZLER FACT                                                                                                                                                                                                   2
FACT                                          Winch Accessories for Fire Brigades

Attaching a load while deflecting the direction
of rope pull
                                                                  Doubling the pulling force by attaching the rope to
                                                                  an external anchor point (double pull)
                                                                                                                                       Doubling the pulling force with a second anchor point
                                                                                                                                       on the vehicle chassis (double pull)
The snatch block is attached to a separate anchor point. The      The guided load is attached to the snatch block, in which            The guided load is attached to the snatch block, in which
rope is guided over the snatch block and is attached to the       regard care must be taken to ensure a low angle of twist.            regard care must be taken to ensure a low angle of twist. The
guided load. This operation only involves the deflection of the   The pulling force is doubled and the rope is attached to an          pulling force is doubled and the rope is attached to a suitable
rope, but the winch (pulling gear) will continue to work in       external anchor point.                                               anchor point on the recovery vehicle.
single-pull mode.



                      External anchor point




                                                                                                                                                                                                           ROTZLER_FACT_01.12 Technical data are subject to change without notice. Copyright: ROTZLER GMBH + CO. KG
                                           max. 2 x Frated                              Shackle
                                                                         Frated
                                                                                                  Frated                                                                     Snatch Block
                                                                                                           Snatch Block                                             Frated
                                                  Snatch Block
                                                                                                                                              2 x Frated
                                                  Frated                                                                  2 x Frated                                                          2 x Frated

                                                                         Frated
             Frated                                                                                                                                                 Frated
                                                                                                  Frated

                                                                                                                                                              Rope Trumpet
                                                                                        Rope Trumpet


                      Rope Trumpet                Guided load




ROTZLER FACT                                                                                                                                                                                           3
FACT                                         Winch Accessories for Fire Brigades

Double pull to the rear with a deflection unit
To provide double pull to the rear and single pull to the front,     Fixing device
                                                                                     Winch                                                     Load-securing gear for safe loading
                                                                                                                                               To ensure safe loading during pulling operations, ROTZLER
ROTZLER has developed a practical deflection unit. This unit                                                                                   provides robust shackles and strong master links in line with
is installed at the rear of the vehicle and includes ROTZLER’s                                                                                 DIN 5688-3 (Form A). Using a ROTZLER rope lug, the snatch
patented rope trumpet as well as a snatch block. Thanks to its                                                                                 block can simply be hooked up to the towing attachment of
compact size, the deflection unit is perfect for space-saving                                                                                  the vehicle (for instance to deflect the rope for double pull). In
integration in the vehicle chassis. The snatch block remains                                                                    Snatch Block   this regard, it is vital to ensure the towing attachment on the
in this deflection unit when working in single-pull mode to                                                                                    vehicle is suitably dimensioned for the given maximum loads.
the front. The rope then runs in a forward direction from the                                                                                  Neither the rope lugs nor any other load-securing gear must
winch over the roller in the deflection unit and from there over                                                                  Shackle
                                                                                                                                               be used to lift suspended loads.




                                                                                                                                                                                                                     ROTZLER_FACT_01.12 Technical data are subject to change without notice. Copyright: ROTZLER GMBH + CO. KG
further rollers that are installed in the vehicle to then exit out
of the rope trumpet at the front of the vehicle. When pulling
to the rear, the deflection roller is then simply taken out of the
deflection unit, which results in the so-called “double pull”,       Diagram of double pull using the snatch block in the deflection unit
which delivers twice the pulling force at half the rope speed
and rope length. This operation does not require the rope to
be deflected, nor does the rope run need to be changed.
When working in double-pull mode, a counter-support serves
as an attachment point to fix the rope thimble in the rope
trumpet. This saves having to find an external anchor point.                                                                                   ROTZLER rope lug 140 kN




                                                                                                                                               ROTZLER rope lug in combination with a ROTZLER snatch block for
                                                                                                                                               double pull or rope deflection




ROTZLER deflection unit                                              Space-saving deflection unit with rope trumpet
                                                                     and snatch block at the rear of the vehicle


ROTZLER FACT                                                                                                                                                                                                     4
FACT                                        Winch Accessories for Fire Brigades

Various types of extension rope are available to ensure the
rope and the load can be linked in a safe and reliable manner.
                                                                         attachment points must be observed. Special measures must
                                                                         be taken (load distribution over several attachment points)
During operation, care must always be taken to ensure that,              if the lateral deflection angle exceeds 25°.
for instance, all load-securing gear is dimensioned to suit the
increased pulling force when doubling the pulling force using            Securing the recovery vehicle
snatch blocks. When using suitable straps and round slings,              The DIN 14584 standard stipulates that vehicles must be
care must be taken to ensure they do not become knotted or               secured with wheel wedges and a wedging brake that acts
entangled. If shackles are used for connection purposes, the             on all wheels during winch operation. To secure recovery                 ROTZLER wheel wedges in acc. with DIN 14584
lifting straps must lie flat. Before use, all load-securing gear         vehicles during winch operation, ROTZLER provides two
must be checked for damage and, if necessary, replaced as                models of robust steel wedges that comply with DIN 14584.                enable the recovery vehicle’s direction of pull to be adjusted




                                                                                                                                                                                                                         ROTZLER_FACT_01.12 Technical data are subject to change without notice. Copyright: ROTZLER GMBH + CO. KG
a matter of course. If extension ropes are used, the maximum             In accordance with DIN 14584, pulling forces of more than                to a safe direction when the vehicle is on a slope. Wheel
permissible loads must be observed given angles of twist.                60 kN require size 2 wheel wedges; lower pulling forces                  wedges are not used during self-recovery operations.
Swivel units or snatch blocks with a revolving loading hook              require size 1 wheel wedges. These wheel wedges must be
must not be used!                                                        positioned at the front axle of the vehicle if pulling to the front
                                                                         and at the rear axle if pulling to the rear. If these measures
                                                                         do not suffice, the recovery vehicle must be secured using an
              swivel                                                     additional and suitably solid anchor point. Deflection rollers




                   guided load                                                                                                                                                 Pull to the front

                                            Auxiliary means that
                                                                                                                                                      max. 25°
                                            are not allowed: It is not
                                            allowed to use a swivel
            rotating hook                   or a snatch block with
                                            rotating hook.                                                                                                  wheel wedges


                                                                                                                                                                               Pull to the rear

Load-securing points on the recovery vehicle
The hitch or towing attachment of a vehicle that needs to be                                                                                                                                              max. 25°


recovered can be used as an attachment point. If a vehicle
features attachment points for shackles, these can also be                                                                                                                                      wheel wedges
used, although the maximum permissible loads for the                     Securing the vehicle using ROTZLER wheel wedges in acc. with DIN 14584



ROTZLER FACT                                                                                                                                                                                                         5
FACT




                                                                                                        ROTZLER_FACT_01.12 Technical data are subject to change without notice. Copyright: ROTZLER GMBH + CO. KG
ROTZLER GMBH + CO. KG                 ROTZLER INC.                   ROTZLER KOREA LTD.
Winches, Capstans and Winch systems   Unit 122, 7350 - 72nd Street   SK Technopark Mecha Zone #308
Robert-Bosch-Strasse 4                Delta, B.C. V4G 1H9            77-1, Seongsan-dong, Seonsan-gu,
79585 Steinen                         Canada                         Changwon, Gyeongnam 642-971
Germany                               Phone +1 604 940-7134          Korea
Phone +49(0)7627 701-0                Fax +1 604 940-7135            Phone +82 55 282 5067
Fax +49(0)7627 701-166                rotzler.canada@rotzler.de      Fax +82 55 600 6220
info@rotzler.de                       www.rotzler.com                rotzler.korea@rotzler.com
www.rotzler.com                                                      www.rotzler.com

				
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posted:12/12/2012
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