RASOR DD120R User manual

USE MANUAL English
CUTTING UNIT
MOD. DD120R
ED.1-04/13
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COMPANY
ACKNOLEDGEMENT
Dear Customer,
thank you for choosing a Rasor®Elettromeccanica S.r.l. product.
Rasor®has been a reference point in the field of cutting systems in the textile, clothing,
furniture, tailoring, sport, chemical, automotive, nautical and insulating material sectors for
years. Its production has been always synonymous with reliability attested by many of
satisfied customers.
Rasor®quality system supervises all the company activities in order to provide the Customer
with a service that meets its needs and expectations in terms of product quality, delivery
reliability and stock of finished products.
All the parts of the devices have been planned and produced to guarantee an optimum
performance. In order to keep the high quality level and the long reliabilty of the Rasor®
products, it is recommended using only original spare parts and to contact the head office
for any maintenance work.
Rasor®Elettromeccanica S.r.l. was established in Milan in 1946 by Luigi Spinelli. For more
than sixty years it has been producing automatic cutting systems, cutting units for textile
applications and electric and pneumatic cutters.
Initially considered as a point of reference for cutting systems in the
textile applications, the Rasor®products are nowadays widely used in
other fields: chemical, automotive, nautical and sport sectors and in
furniture manufacturing.
Rasor®can rely on the professional continuity of three generations,
thanks to the precious support of the promoting partner, to his passion, dedication and
great experience of seventy years.
The main characteristic of Rasor®is that each working phase, starting from the manufacturing
of the product up to its packing and delivery is carried out in Rasor®premises by qualified
operators who have professionaly grown up following the spirit of the company and of its
founders. This ensures the high quality which Rasor® has always considered as essential
since the beginning of its activity.
Following the innovative spirit mentioned above, our company is constantly focused on the
improvement of the product quality, on the study and development of new materials and
technologies.
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18

1. GENERAL SAFETY RULES
This manual is an integral part of cutting unit DD120R and must be carefully
read before using it since it gives important indications with regards to its safe
installation, use and maintenance. Keep it with care.
Before using cutting unit DD120R, read carefully the following general safety
rules.
• PACKAGING.
After taking off the packaging make sure that the cutting unit is intact. In
case of doubt do not use it and contact an authorized service centre. Do not
leave pieces of packaging (plastic bags, foam polystyrene, boxes, etc.) within
the reach of children or disabled persons since they are potential sources of
danger.
• AVOID DANGEROUS ENVIRONMENTS.
Prevent the cutting unit DD120R components from coming in contact with
damp or wet surfaces.
• KEEP CHILDREN AWAY.
Unauthorized persons, in particular children, must be kept away from the
working area.
•FEEDCABLE.
Prevent the feed cable from coming in contact with hot objects, pointed
surfaces or sharp edges. Never pull the feed cable of the machine. It must
never be replaced by the user. If necessary contact professionally qualified
staff.
• KEEP THE WORKING AREA ALWAYS IN ORDER.
The workplace must always be kept in order and well lightened; liquids or oil
traces must not be present.
• ALWAYS USE CUTTING UNITS DD120R PROPERLY.
Use the cutting units only to carry out the works they have been designed
for; do not use them improperly.
• OBSERVE THE USE OF THE TOOLS.
Do not cut excessively thick materials and always check blade conditions.
• AVOID ACCIDENTAL STARTINGS.
Before connecting cutting unit DD120R, make sure that everything is installed
properly.
• CLOTHING.
Do not use large clothes or accessories that might get stuck in the moving
parts.
• GOGGLES AND PROTECTIVE METAL MESH GLOVES.
Always use goggles, protective metal mesh gloves approved by Rasor®during
use and maintenance operations (according to UNI EN 388:2004 standard).
•SPAREPARTS.
During maintenance and replacement operations use only original spare parts.
Blade maintenance must be only performed by Rasor®technicians.
• INSTALLATION.
Any installation that is not in conformity with these
specifications could jeopardize your safety and cancels the
warranty.
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ALL RIGHTS ARE RESERVED ACCORDING TO THE
INTERNATIONAL COPYRIGHT CONVENTIONS,
The reproduction of any part of this manual, in any form, is forbidden without
the prior written authorization of Rasor®Elettromeccanica S.r.l.
The content of this guide can be modified without prior notice. Great care has
been taken in collecting and checking the documentation contained in this
manual to make it as complete and comprehensible as possible.
Nothing contained in this manual can be considered as a warranty, either
expressed or implied - including, not in a restrictive way, the suitability warranty
for any special purpose. Nothing contained in this manual can be interpreted as a
modification or confirmation of the terms of any purchase contract.
Rasor®Elettromeccanica S.r.l. machines have not been conceived to work in areas at risk of
explosions and at high risk of fire and they cannot cut wet or damp materials. Moreover, they
cannot work in case of rain.
In case of damage or malfunction, cutting unit DD120R must not be used until the Customer
Care Technical Service has repaired them.
Customer Care Technical Service
WARNING
The installer and the maintenance man must know the content of this manual. Although
the main features of the machine described in this manual are not subject to change,
Rasor®Elettromeccanica S.r.l. reserves the right to modify the components, details
and accessories it deems necessary to improve the machine or to meet manufacturing
or commercial requirements at any time and without being obliged to update this
manual immediately.
Informative letter
For any information, please contact
® ELETTROMECCANICA S.r.l.
Via V. Caldesi, 6; 20161, MILANO (MI) - ITALY
Tel: [phone]; Fax: [phone]
e-mail: [email protected]
web: www.rasor-cutters.com
RASOR
WARNING
The original configuration of the cutting unit must not be changed at all.
On receiving the machine make sure the supply corresponds to what has been ordered.
In case of non-compliance immediately inform Rasor®.
Also make sure the cutting unit has not been damaged during transport.
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2. TRANSPORT AND PACKING
The cutting unit is delivered in a cardboard box, inside which there are various options. The
code of the ordered product and its serial number are indicated outside the package (see
picture 1). The following accessories are contained in a bag inside the package:
1) Poligonal blade;
2) Butterfly wrench for blade nut disassembly.
3. PLATE DATA
The manufacturer's identification and EC STANDARD 2006/42/EC conformity plate (see picture
below) is located on the front part of the cutting unit.
The plate must not be removed at all, even if the machine is resold. Always refer to
the serial number written on the plate itself when contacting the manufacturer.
Several safety warnings are printed on a card which is applied to the cutting unit feeding
cable; such warnings must be strictly followed by everyone dealing with the machine. The
company is not to be held responsible for damage to property or accidents to
people which might occur if the above-mentioned warnings are not observed. In
such a case, the operator is the only person responsible.
1
Serial number
Year of production
Model
Electric data
2
2
1
180
DD
0,52
2600 2___
DD120R
380/400-3ph
READ
THE
INSTRUCTION
MANUAL
DO NOT
REMOVE
THE
SAFETY
DEVICES
HIGH
VOLTAGE
SHEARING
RISK
USE
METAL
GLOVES
USE
GOGGLES
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4. PRODUCT DESCRIPTION
The fixture described in this manual is a cutting unit model DD120R which can be assembled
on automatic machines (e.g. spreaders, computerized cutting) by means of proper holes
located in the motor rest.
DD120R can operate continuously and it can cut at various heights by means of multiple
installation.
By cutting with the blade and the counterblade always in contact and thanks to the steel
upper quality of the blade supplied, DD120R guarantees the clean separation without frayings
of the two borders of the cut material. The cutting time is halved and the material can
slide at a doubled speed, thus reducing idle time. The three-phase motor, with extremely
compact dimensions and extreme reliability with 120 mm diameter blades, guarantees
cuts with thickness up to 4 cm. A sharpener assembled on the cutting unit head allows
whetting the blade at any moment without disassembling it. After carrying out this operation,
it is possible to start cutting again. A high power motor, perfectly balanced, with a high
number of revolutions and totally free of maintenance, reduces the vibrations to the minimum,
thus making the cutting unit comply with European Directive No. 2002/44/EC concerning
the risks deriving from mechanical vibrations.The mechanical parts are made of high resistance
steel, bronze and aluminium.
1
4
14
2
6
10
8
9
11
3
7
5
13
12
1 Connector block 8 Poligonal blade
2 Motor frame 9 Hard metal counterblade
3 Feed cable 10 Aluminium base covered with
Teflon
®
®
4 Motor cover 11 Left aluminium protection cover
5 Sharpening button 12
A
djusting knob for left
protection cover
6
A
djusting knob for right protection
cover 13 Motor rest
7 Right aluminium protection cover 14 Cable gland
Device components
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7. FIELD OF APPLICATION
6. NOISE LEVEL
NOTE
It is advisable for cutting unit DD120R owners to verify the compliance with the standard
concerning safety of workers: Italian legislative decree 81/08.
The maximum acoustic pressure level emitted by cutting unit DD120R is about 60 dB (A).
Noise tests have been carried out in compliance with Standard UNI EN ISO 11202:2010. The
device noise levels, measured at different distances (without any sound wave filtering system),
vary in the extent of few db (A).
Cutting unit DD120R has been designed, manufactured and assembled to cut any kind of
fabrics or materials, with the exception of metal, plastic or wood, by means of rotary poligonal
blades. This equipment must not work:
- in areas prone to explosions;
- in presence of fine dust or corrosive gases;
- on wet or damp materials;
- to cut plastic, metal and wooden materials.
It is forbidden to use cutting unit DD120R for purposes different from the above-
mentioned ones.
5. TECHNICAL FEATURES
The technical data are only indicative and they can be changed without notice.
8 side blade Ø 120 mm, in H.S.S. steel
12 side blade Ø 120 mm, in H.S.S. steel
Circular blade Ø 120 mm, in Extra steel
8 side blade Ø 120 mm, in H.S.S. steel
covered with T IN
12 side blade Ø 120 mm, in H.S.S. steel
covered with T IN
8 side blade Ø 120 mm, in integral hard
metal
8 side blade Ø 120 mm, in H.S.S. steel
covered with Teflon®
12SHSSTF
Features of the available blades
12SHSS
12CSW
12SMD
12DHSSTN
12SHSSTN
12DHSS
120 mm with hard metal counterblade
2600 rev./min
about 4 cm
Three-phase-Asynchronous, 180 W
(
IP65-CL F
)
0,52 A
4700 g
4950 g
1 mt
LUX 200
< 2,5 m/s2
0 ~ 55°C
10 ~ 95% without condensate
Working temperature
Working humidity
Weight (with package)
Electric cable length
Minimum light for working
operations
Vibration at the start up
Cutting working depth
Motor power
Weight (with feeding cable)
DD120R cutting unit features
Blade diameter
Blade speed
Max. absorption
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8. USE WARNINGS
We recommend following the indications below in order to always work in safety conditions.
•All the operations must be carried out complying strictly with the safety rules of the
country where the device is to be installed.
•It is STRICTLY FORBIDDEN to smoke during the installation or adjustment operations
of the cutting unit.
•The Customer undertakes to comply with and make his staff observe all the rules and
regulations in force concerning safety, prevention of accidents and health in the work
place.
Therefore, the Customer assumes the responsibility to strictly follow all the rules and
regulations in force, as well as the special provisions in force in sport and public installations
the Customer declares to know after receiving all the relative necessary information.
•The cutting unit works also without its safety protective device. This
protective device must NEVER be removed.
•Always check the resistance of the material to be cut and the kind of blade which is
being used.
•The Customer shall equip his own personnel with all the individual safety protections
for the execution of the works, as well as with the ones which might be prescribed by
the Manufacturer due to specific danger conditions of the plant or of the area where
the personnel must work.
•Do not make any adjustment while the blade is working or while the electric plug is
connected.
•Always pay attention to the electric cable position to prevent it from being cut or
damaged by the blade.
•It is allowed to assemble cutting unit DD120R on machines O.E.M. on condition that
their original structure is not modified. Otherwise, the intervention must be certified
by Rasor®.
Firstly make sure that the lines are able to feed the cutting unit correcltly, in compliance
with the safety rules (for the feature required see par. 5).
We suggest installing a magnetothermic safety device before the cutting unit and check
that the ground circuit is effective.
Before working on the feeding cable pull the plug out. Check that electric connections and
protections correspond to the driving force and the plate data values (voltage and current),
required by the different electric circuits.
By referring to the CEI 11-27/1 standard all the works carried out by means of electric
current must be performed by a staff, who has been provided with all the devices required
by the above-mentioned standard.
For the works carried out under voltage, it is necessary that the employer certifies the
suitability, against formative processes. The cutting unit DD120R is supplied with electric
cable connected to the connector block located beside the motor
.
The user must connect the cutting unit to the mains (the cable complies with the CEI 20-
22 III Standard). Never change the length of the cable supplied. If it is necessary, use a
longer cable and replace the one supplied.
WARNING
9. ELECTRIC CONNECTION
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10. RESIDUAL RISKS
Even though the cutting unit is safe, operators must pay attention to preserve their and
other people’s safety.


At the end of the working operations, the metal parts could be very hot.

The cutting blade can work even when the protective device is disassembled.
3
B
A
WARNING
The operator must arrange a disconnetting switch on the supply line in order to switch off
the machine, if necessary.
BB
To connect the new cable open the cover “A” by unscrewing
the 4 cross-slotted screws “B” (see picture 3). Connect the
phase cable to the terminal board. The minimum section of the
connecting cables must be determined by the operator in charge
of the installation.
We recommend using safety cables and sockets IMQ approved.
Check the connection by enabling the cutting unit and verify
the rotation direction. The cutting unit is provided with earthing
(yellow-green cable). Possible faulty earthing connections may
cause unsafe working conditions. Possible damages are not at
RASOR®s.r.l. charge.
The electric feeding must be supplied by a line protected against
overcurrent by means of the automatic switch (magnetothermal) or delayed fuses with a
suitable dimensions. The current of the safety devices must be as low as possible considering
the max. absorption of the machine (see identification plate).
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12. BLADE SHARPENING
After many hours of a continuative use of the cutting
unit, or if it should not be able to cut anymore, it is
necessary to sharp the blade.
To carry out this operation, start the blade and press
sharpener “2” located on it for 3-4 seconds (by pressing
push button “1”, as shown in picture 6).
Repeat the operation 2-3 times.
If the sharpening operation is not effective, check
the wear of emery grinding wheel “3” (see picture 7).
If emery grinding wheel “3” is too worn or dirty, replace
it after disassembling the blade by means of the proper
tool.
1
2
7
3
6
11. INSTALLATION AND USE
To install and use the cutting unit, proceed as follows:
1) Fix the cutting unit on level squares or angles by using the two threaded holes “A” for
5MA screws located in the blade holder support (see picture 4).
NOTE
The cutting unit can be installed in any position/angle: vertically, laterally and it can be turned
upside down. It is not compulsory for the aluminium base to touch the machine table.
2) Lay the material to be cut;
3) Connect the cutting unit to the electric feeding;
4) Put the material on the cutting base;
5) Adjust the right and left mobile protection covers “B” and “C” according to the thickness
of the material to be cut (see picture 5);
6) Carry out the cutting operation.
NOTE
Cutting unit DD120R can work in a fixed position (the material has to be moved) or it can
move forward while the material is kept in the same position. Make sure the material to be
cut is properly stretched, preventing it from curling.
5
4
AB
C
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If the blade is no more able to cut (even after repeating
the sharpening operation several times) it is necessary
to replace it. To carry out this operation, use butterfly
wrench “1” (shown in picture 8).
To replace the blade, proceed as follows:
1) Use some protective gloves in compliance with
Italian Legislative Decree 81/08.
2) Remove the two adjusting knobs “A” and “D” of
the right and left protection covers “C” and “F”
by removing the two relative washers “B” and
“E” (see picture 9).
3) Use butterfly wrench “1” to unscrew nut “G” and
remove blade “H” (see picture 10).
5) Replace the worn blade with the new one “2”,
being careful to center the blade on the gear, in
the correct position; we remind you to assemble
it so that the side with the writing Rasor can be
seen by the operator.
6) Assemble all the components again and carry out
the sharpening.
13. BLADE REPLACEMENT
9
D
8
1
2
10
E
F
A
B
C
H
1
G
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15. SPARE PARTS / EXPLODED VIEW
14. TROUBLESHOOTING


SOLUTION
Make sure that the blade touches the counterblade
Check the kind of material
Sharpen the blade
Check the material thickness
Check the compatibility between blade and material
Make sure that the motor turns correctly
Reduce the feeding speed
Check the counterblade integrity
Check the blade integrity
Disassemble the blade and remove the material residues
Check the counterblade integrity
Check the electric connections on the O.E.M. unit
Check the electric connections
Check the feeding cable
The cutting unit starts slowly, works
intermittently or it does not start

PROBLEM
The cutting unit is noisy
The material is not cut or it gets stuck between
the blade and the counterblade
CODE DESCRIPTION CODE DESCRIPTION CODE DESCRIPTION CODE DESCRIPTION
12SHSS 8 SIDE BLADE Ø 120 mm, IN H.S.S.
STEEL GRT12M29 FASTENING NUT SW109100 SHARPENER CAP WITH BEARING SW122600 PLATE LOCKING THE THREAD
GMT12DD COMPLETE MOTOR SERIES DD120, 3-
ph 380 V 50 Hz GRT27 FLAME RETARDANT FEEDING CABLE SW109200 SHARPENER CAP FIXING SCREW SW1244DDL LEFT ALUMINIUM PROTECTION COVER
GRT1213DD COMPLETE ROTOR SERIES DD120 GRT8615 SPACER SW109300 WASHER SW1244DDR RIGHT ALUMINIUM PROTECTION
COVER
GRT12DD24 COMPLETE MOTOR FRAME SERIES
DD120 GRT8616 DOWEL FASTENING THE FAN SW120700 ALLEN SCREW FOR DD120 BASE FIXING SW1255DDR MOTOR REST
GRT12DD26 LOWER MOTOR FLANGE SERIES
DD120 S867900 COUNTERBLADE HOLDER FIXING SCREW SW120800 ALLEN SCREW FOR UPRIGHT FIXING SW1261DD GEAR
GRT12M17 MOTOR FRAME FIXING SCREW SW1076S SPRING WITH DOWEL SW120900 STEEL UPRIGHT SW126300 BLADE FIXING RING NUT
GRT12M18 MOTOR COVER SW108000 COUNTERBLADE HOLDER SW121100 STEEL PIN SW1274DDR RIGHT BASE WITH BEVEL DD120R
GRT12M19 MOTOR FAN SW108100 HARD METAL COUNTERBLADE SW121400 ALLEN SCREWS FOR DD120 SUPPORT
FIXING
SW1274DDRC
PL
RIGHT BASE WITH BEVEL DD120R,
COMPLETE
GRT12M21 UPPER MOTOR COVER SW108200 COUNTERBLADE FIXING SCREW SW121600 L12 MOTOR BEARING SW128600 MEDIUM GRAIN EMERY Ø 30x10x6
GRT12M22 MOTOR COVER FIXING SCREW SW108700 SHARPENER PIN SW122100 SHAFT HEAD FIXING SCREW SW1286CPL COMPLETE EMERY UNIT
GRT12M25 COMPLETE TERMINAL BOARD SW108800 EMERY SPRING Ø 11 mm SW122300 STEEL STUD BOLT T105000 SCREW FOR FIXING THE PLATE
LOCKING THE THREAD
GRT12M27 UPPER MOTOR BEARING SW108900 SHARPENER BUSH SW122400 STEEL WASHER T 107500 BLADE ASSEMBLING/DISASSEMBLING
WRENCH
GRT12M28 COMPENSATION RING SW109000 EMERY SPRING Ø 6 mm SW122500 PROTECTION COVER ADJUSTING
KNOB
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GRT12M28
GRT12DD26
SW120700
S867900
SW108100
SW126300
SW1274DDR
SW1274DDRCPL
SW1076S
SW108000
SW122100
12SHSS
SW122500
SW1261DD
SW1244DDL
SW121100
SW122300
SW121400
SW1255DDR
SW108200
GRT12M29
SW1244DDR
SW122600
SW120800
SW120900
T105000
T105000
SW122400
SW108800
SW109200
SW108900
SW109000
SW128600
SW108700
SW109300
SW1286CPL
SW109100
GRT12M25
GRT12M21
GRT12DD24
SW121600
GRT27
GRT12M17
GRT12M22
GRT12M19
GRT8615
GRT8616
GRT12M18
GRT1213DD
T 107500
GMT 12DD ( 380/400V, 50Hz )
GRT12M27
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WARRANTY
Rasor®Elettromeccanica S.r.l. cutting unit has a 12 month warranty from the date indicated
on the last page of this manual, except in case of different written agreements.
The warranty covers all manufacturing and material defects. Replacement and repair operations
are covered only if carried out by our company and at our workshop. If in-warranty goods
need to be repaired, the customer must always send the complete machine to Rasor®.
Single units will not be repaired under warranty.
The material to be repaired must be sent CARRIAGE FREE.
Once the machine has been repaired, it will be sent CARRIAGE FORWARD to the customer.
The warranty covers neither technicians' intervention on site nor the machine disassembly
from the installation place.
If for practical reasons, one of our technicians is sent to the premises, the customer will be
charged the costs plus the travelling expenses.
The warranty does not include:
failure caused by wrong use or assembly,
failure caused by external agents,
failure caused by lack of maintenance or neglicence;
blades and parts subject to wear.
WARRANTY FORFEITURE:
In case of arrearage or other breaches of contract,
Whenever changes or repairs are carried out on our cutting units without our prior
authorization,
Whenever the serial number is tampered with or cancelled,
Whenever the damage is caused by improper use, bad treatment, bumps, falls and
other causes not due to normal working conditions,
Whenever the unit seems tampered with, dismantled or previously repaired by
unauthorized staff,
In case the cutting units are used for purposes that are different from the ones
described in this manual.
All repair operations carried out under warranty do not interrupt its duration.
All disputes will be settled in the court of justice of Milan (Italy).
We thank you in advance for the attention you will pay to this manual and we invite you to
inform us of any change you deem necessary to improve it and make it more complete.
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D
DECLARA TION OF CON FORMITY
We hereby certify that the device specified hereunder complies to the requirements of
Machinery Directive 2006/42/EC, Electromagnetic Compatibility 2004/108/EC and CEI EN
60204-1, Directive 2002/44/EC and to technical rulings UNI EN 414:2002, UNI EN ISO 12100:2010.
Noise tests have been carried out according to UNI EN ISO 11202:2010 Standards.
Cutting unit DD120R has been produced according to workmanlike standards.
We declare that the above-mentioned goods comply with the standards in force concerning
safety and hygiene at work that can be applied to the material itself according to the Italian
legislative decree No. 81/08 (local law); the above-mentioned goods are not included in the
goods indicated in annex IV of Machinery Directive 2006/42/EC.
1. Category: THREE-PHASE CUTTING UNIT
2. Manufacturer: RASOR®ELETTROMECCANICA S.R.L.
3. Type: DD120R
4. Serial number: ..........................................................................................
5. Year of manufacture:................................................................................
6. Country of manufacture: ITALY
7. Additional information: ..............................................................................
(Firma)
Date:
Warranty expiry:
12 months invoice date or receipt
RASOR ELETTROMECCANICA S.R.L.
CUTTING EQUIPMENTS
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