NARGESA MC400 User manual

INSTRUCTIONS BOOK
PRADA NARGESA, S.L
Ctra. de Garrigàs a Sant Miquel s/n · 17476 Palau de Santa Eulàlia (Girona) SPAIN
Tel. [phone] · [email protected] · www.nargesa.com
SECTION BENDING MACHINE
MC400

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MC400 BENDING MACHINE INSTRUCTION BOOK 1
INDEX
1. MACHINE INFORMATION ................................................................................................... 2
1.1 Identification of the machine. .................................................................................... 2
1.2 Normal use of the machine ....................................................................................... 2
1.3 Contraindications of use............................................................................................. 2
1.4 Noise caused by the machine ................................................................................... 2
1.5 Vibrations. ................................................................................................................. 2
1.6 Operative natural working place.. .............................................................................. 2
1.7 Description of the machine ........................................................................................ 2
1.8 Descripción de los accesorios. .................................................................................. 3
1.9 Description of safety devices .................................................................................... 3
1.10 Basic features of the tooling..................................................................................... 3
1.11 Information related to the electrical equipment........................................................ 3
2. TRANSPORT, MAINTENANCE AND STORAGE. ............................................................... 5
2.1 Storage conditions .................................................................................................... 5
2.2 Transportation ........................................................................................................... 5
2.3 Dimensions…............................................................................................................. 5
3. INSTALLMENT AND STARTING UP ................................................................................... 6
3.1 Instructions to set it up .............................................................................................. 6
3.2 Assembling to reduce noise and vibrations ............................................................ 6
3.3 Instructions for assembling and ................................................................................ 6
3.4 Admissible outer conditions ...................................................................................... 6
3.5 Instructions for the connection to power supply...................................................... 6
3.6 Safety systems for the user........................................................................................ 6
4. INSTRUCTIONS FOR THE USAGE ..................................................................................... 7
4.1 Instructions for adjustment. ....................................................................................... 7
4.2 Waste hazards .......................................................................................................... 7
4.3 Information about forbidden methods of use. ........................................................... 7
4.4 Instructions for locating breakdowns and the further rearming of the machine. ....... 7
4.5 Principles for bending................................................................................................. 8
4.6 Mounting the rollers.................................................................................................... 8
5. ASSEMBLING THE ROLLERS........................................................................................... 10
5.1 Axes traction of the machine.................................................................................... 10
5.2 Rollers for standard pipes........................................................................................ 10
5.3 Capacidad de curvado............................................................................................. 11
5.4 Different samples of bending .................................................................................. 12
TECHNICAL ANNEX

MC400 BENDING MACHINE INSTRUCTION BOOK 2
1. MACHINE INFORMATION
1.1. Identification of the machine.
Trademark : NARGESA
Type: Curvadora
Model: MC 400-9
1.2. Normal use of the machine.
The profile former has been designed for bending profiles, pipes, angles, etc... At different dimensions and
different kinds of materials.
A set of standard tooling is provided with the machine, with which you will be able to bend the different pofi-
les. Anyhow the manufacturer can provide you with any kind of roller so you can make other kinds of ben-
dings as well as Delring rollers to avoid damaging the works in inox or aluminium.
If an accident occurs due to a negligent use on the operative’s side, for not following the safety ru-
les exposed on this book, PRADA NARGESA S.L will not accept any resposibility.
1.3. Contraindications of use
Every use different from the one for bending of materials.
1.4. Noise caused by the machine.
In this particular case the noise is almost nn existent under normalworking conditions.
1.5. Vibrations
Like noise, vibrations could be considered non existent since this is a fixed machine and besides it has a
low rotary speed on the rollers.
1.6. Operative natural working place.
The machine can be used just by only one worker at the time, who will be located in front of the machine so
it can regulate the movement of the threes moveable axes.
1.7. Description of the machine.
The machine is equipped with a 1,1 Kw power and the reducer that transmits rotation to the
three axe through cogged crowns. These are steel treated and rectified axes 40mm diemeter

MC400 BENDING MACHINE INSTRUCTION BOOK 3
The machine has two shelves below where there is the engine to keep the tooling, the machine structure
is made of welded and mechanized steel sheet which gives the machine a strong and solid structure.
TECHNICAL CHARACTERISTICS
1.8. Description of accessories
The basic accessories the machine has are a set of 9 standard rollers with three thick parts, three faste-
ning threads and three washers, one for each axel.
1.9. Description of safety devices
The gear and moveable parts are covered with the exception of the working part of the rollers in the frontal
part.
1.10. Basic characteristics of the tooling that can be adjusted to the machine
The caution to bear in mind with accessoriesto be adjusted to the machine is that they all have to coincide
in the kind of clamping to the machine and they cannot be loosen. Be always careful not to fix the threads
with the hands.
1.11. Information related to the electrical equipment.
The machine has a 230/400 V three phased engine, connected in star when the line tension is 400 v and
connected in triangle when the three phased line tension is 230 v, as it is indicated below:
Star connection, when the line tension is 400v (preset):
Star connection, when the line tension is 400v (preset)
Power 1,1KW/1,5CV (HP)
Tensión 3 phases 230V/400v
Speed 7 r.p.m
Shas diameter 40mm
Roller diameter 130mm
Useful shas length 80mm
Dimensions 650x7740x1260mm
Weight 365Kg

MC400 BENDING MACHINE INSTRUCTION BOOK 4
Connection in triangle, when the line tension is 230v
As well, it is necessary to change the input terminals of the inverter for the change of tension. Input
400V. (Terminals “0”and “400”). Input to 230 V. (Terminals “0” and “230”).
In order to detail the procedure, please see the sketch.

MC400 BENDING MACHINE INSTRUCTION BOOK 5
2.TRANSPORT, MAINTENANCE AND STORAGE.
2.1. Storage conditions
The machine must be stored in places with the following requirements:
- Humidity between 30% and 95% without condensation.
- Temperature from –25ºC to +55ºC or +75ºC for periods no longer than 24 h.
- It is advisable not to pile up machines nor heavy objects on top of them.
- Do not dismantle for storage.
2.2. Transport
Transportation must be carried out by using a forklift truck.
2.3. Dimensions
Weight: 365 Kg

MC400 BENDING MACHINE INSTRUCTION BOOK 6
3. INSTALLMENT AND STARTING UP
3.1.Instructions to set it up:
When the machine is put down by the crane it will be necessary to put it correctly so it doesn’t have to
be moved once it is on the floor. If it isn’t possible then it has to be put on a moveable base to move it
into a proper place.
The machine will be fixed by its own weight on the floor that’s why it has to be set on a flat surface.
3.2. Assembling to reduce noise and vibrations
This machine has a very low level of noise and vibrations, due to its low speed.
3.3. Instructions for the assembling and dismantling
The machine is transported completely assembled.
3.4. Admissible outer conditions
Environmental temperature Between: +5ºC and +40ºC without exceeding as average temperature
during 24h. Do not go beyond +35ºC. Humidity: Between 30% and 90% without water condensation.
3.5. Instructions to connect the machine to the power supply
It must be connected to only one power supply in the indicated power source. If the line tension is not
correct, then the engine bobins must be replaced.
It is very important to connect the machine properly to a groud socket
3.6. Safety systems for the user.
Never touch the rollers when they are bending material for the damage they can caus, there
might be risk of hands smashing.
The place to locate the machine must be selected taking into account the room it will occupy the metal
bar during the performance of the operation.

MC400 BENDING MACHINE INSTRUCTION BOOK 7
4. INSTRUCTIONS FOR THE USAGE
4.1. Instructions for the adjustment.
This machine hasnt got any adjustable element, with the exception of any kind of repair.
4.2. Waste danger (That cannot be eliminated). Hazard caused by adjusted elements.
Always keep in mind that hands must not be placed in the roller moveable parts of the rollers since
there might be risk of cutting out the fingers, hands or arms.
The machine performance place must be protected to prevent the operative from any possible damage
with the bent material.
4.3. Information about forbidden methods of use.
Do not use tooling that are not provided by the manufacturer as a way to avoid the breakdown of any
element that could injure the user.
4.4. Instructions for locating breakdowns, repair and rearming of the machine.
Due to its simple mechanism, this machine does not tend to breakdowns. The only possible one could
be the handling fuse change in the electric box. This is located in the back part of the machine. In order
to replace it, the machine must be unplugged and the back coverwhere the reducer is, must be
removed. There will be a white PVC box where the electric handling and the protection fuse. In case
you need to substitute one, it is advisable to put one of the same value.

MC400 BENDING MACHINE INSTRUCTION BOOK 8
4.5. Principles to bend
 The activation of the machine engine is carried out by usingthe pedals, one to turn right and the
other one to turn left, without nailing in.
 It is necessary to get the side rollers up or down in order to regulate the bending radius, and do the
same with the vertical rollers in order to achieve the torsion.
 Activation pedals have no nailing in. So the machine will stop when the pedal is not pressed.
 For the emergency stop, press the pedal emergency button.
 The material can be put in the machine for both places. Use the upper handling to adjust the entran-
ce of material. Use the milimeter scale to indicate the position.
 Adjust the approximate height to both lateral rollers to get a given radius, (the more you do it , the
more experienced you will get).
 Adjust the two vertical stand rollers. This will be adjusted by tha back part, getting them closer or
farther from the profile that has been already set in the rollers. They will help us control the lateral
distortion. (They must be adjusted so they get to slightly touch the profile).
 If the profile to be worked does not fit in the rollers, it is advisable to cut the extreme to give it a
wedge shape, to ease its entrance.
 In case the desired results are not achieved, then modify the side rollers position and the vertical
ones.
 The fastening nuts of the rollers must be only tightended with the hands stregnth.(no fastening
tooling is required to do that).
 It is advisable to put some oil in the up and down threads of the rollers whenever necessary to avoid
them from getting any hardness.
4.6. Assembling of rollers