NARGESA MC650 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
MC650

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MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 2
INDEX
1. MACHINE DETAILS ................................................................................................................
1.1. Machine identification details ......................................................................................
1.2. Dimensions …..............................................................................................................
1.3. Description of the machine ..........................................................................................
1.4. Machine part identification ..........................................................................................
1.5. General characteristics ……........................................................................................
1.6. Description of the guards ……….................................................................................
2. TRANSPORT AND STORAGE ………….................................................................................
2.1. Transport ..................................................................................................................
2.2. Storage conditions ……………….................................................................................
3. MAINTENANCE ….................................................................................................................
3.1. General maintenance ...............................................................................................
4. INSTALLATION AND START UP ………….............................................................................
4.1. Positioning the machine ..............................................................................................
4.2. Dimensions and work area ……..................................................................................
4.3. External permisible conditions ….................................................................................
4.4. Instructions for connecting to the power supply ..........................................................
5. INSTRUCTIONS FOR USE .....................................................................................................
5.1. Bending principles ……................................................................................................
5.2. Assembly of the rollers ................................................................................................
5.3. Instruction manual …...................................................................................................
5.3.1. Pilot lights …………………….…………………………………………………….
5.3.2. Main buttons …………….…………………………………………………………
5.3.3. Roller position controllers …………………………………………………………
5.3.4. Direction of rotation of rollers ….…………………………………………………
5.4. Working position …………………………………………………………………………….
6. WARNINGS …….....................................................................................................................
6.1. Residual hazards ….....................................................................................................
6.2. Counter-productive methods .......................................................................................
6.3. Other recommendations ..............................................................................................
7. ASSEMBLY OF THE ROLLERS ……......................................................................................
7.1. Bending capacity .........................................................................................................
8. OPTIONAL ACCESSORIES …................................................................................................
TECHNICAL ANNEX
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MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 3
1. MACHINE DETAILS
1.1. Machine identification details
1.2. Dimensions
Picture 1. External dimensions of the MC650 bending machine
1.3. Description of the machine
The MC650 bending machine is a machine specifically designed for bending profiles, the majority of which
are metal, with different thicknesses and configurations, such as solid profiles, pipes, T-profiles, angles...
The bending machine offers a set of standard tools, rollers, to allow the bending of profiles in a range of
shapes and sizes.
Apart from the standard rollers, the manufacturer also offers different types of additional rollers to produce
other types of bending, according to the configuration of the material to be handled, as well as specific
rollers for work with stainless steel or aluminium, manufactured with * SUSTARIN for jobs in stainless steel
or aluminum avoiding the material to be damaged or scratched.
* Sustarín: Polyoxymethylene, high resistance and high rigid crystalline thermoplastic, low friction and excellent dimensional stability
PRADA NARGESA S.L. is not liable for any damage that might occur due to misuse
or failure by users to comply with the safety standards.
Trademark Nargesa
Type Section bending machine
Model MC650

MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 4
1.4. Machine part identification
* Upper main roller
Straightener roller
* Lower main rollers
Straightener guide nut
Hydraulic cylinder
Control panel
* Bending rollers
Nuts to secure the position
of the straightener roller
Anti-rotation plate of the
straightener
Main switch
Connector
Anchoir point
for lifting
Anchor point for horizontal
position rotation
Hydraulic assembly
Oil level sight glass
Adjustment nut for
Back cover
of motor

MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 5
Figure 2. Nameplate
1.5. General characteristics
Hydraulic unit features
Motor power 3 Kw / 4 CV to 1400 r.p.m.
Intensity 12 / 7 A
Voltage supply 230/400 V 3 phased
Traction 3 rollers
Rollers speed 5 r.p.m.
Diameter of rollers 202 mm
Diameter of axes Lower 65 mm / Higher 80 mm
Useful axes length 160 mm
Structure material Sheet
Weight 1250 Kg
Dimensions 1300x990x1300 mm
Motor power 0.75 Kw/1 CV a 1400 r.p.m.
Intensity 3.5 / 2 A
Pump 1,5 l/min
Work pressure 200 bars

MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 6
1.6. Description of the guards
The gear motor and all the gears that allow the operation of the machine are located under the main upper
cover that protects the mechanisms.
Although the major mobile elements are protected by the upper cover, it is necessary to take special
precautions during bending operations in order to avoid entrapment between the rollers and the piece
being bent.
Figure 3. Mechanism protection guards
Protection
drive unit
Frontal
protection

MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 7
2. TRANSPORT AND STORAGE
2.1. Transport
There are two ways of carrying out the transportation of the machine:
- From the bottom, through the base of the machine, using a pallet jack or forklift as shown in the illustra-
tion. Never raise the machine more than 200 mm from the surface in order to prevent the risk of tipping
- From the top of the machine, from the anchor point designed for this purpose defined in figure 4, using a
crane or forklift.
Figure 4. Transportation of the machine
2.2. Storage Conditions
The bending machine shouldn’t be stored in a place that does not meet the following requirements:
- Humidity between 30% and 95%
- Temperature of -25 °C to 55 °C or 75 °C for periods not exceeding 24hrs
(remember that these temperatures are in storage conditions)
- Machines or heavy objects should not be stacked on top
Anchoir point for lifting

MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 8
CAUTION:
The "Emergency Stop" push button must be pressed and the machine brought to a stop in order to
lubricate the machine”.
3. MAINTENANCE
3.1. General maintenance
- To ensure correct operation and prolong service life, it is recommended to clean the piston rods whenev-
er possible.
- It is advisable to keep the friction rule lubricated along which the upper roller support slides. It is also nec-
essary to ensure a minimum lubrication of the inner walls along which the upper roller support slides.
- Regularly check the oil level in the hydraulic tank at the bottom of the machine. To obtain a correct reading
of the oil level the lower rollers should be in their lower position.
In order to lubricate the moving parts of the machine that require lubrication, it’s recommended to follow the
next instructions:
- Clean the surface to be lubricated with a cotton cloth or a soft rag that does not release any threads. To
remove the accumulated grease and any possible residues that have become stuck to it.
- After cleaning, reapply grease onto the surface with the help of a rag or a spatula.
- Spread the grease evenly without creating excesses or clumps.
- Once the machine is lubricated, using the mobile control that manages the height of the upper roller, raise
this until it reaches its highest point.
- When the upper roller comes to a stop, reverse the direction of the piston to lower the roller down to its
lowest point.
- Repeat the operation to ensure that the friction rule is lubricated.
- Repetir la operación para asegurar el engrase de las regla de fricción.
- Lubricate the machine regularly, according to use.
* It is recommended to use lithium grease for the rollers N.850 EP-2.
To replace the hydraulic oil, the following is recommended:
- Check the oil level in the tank every 500 hours of use.
- The oil cap is located at the top of the tank. If it is necessary to add oil, fill to the level of the sight glass
at the front of the tank.
- Change the hydraulic oil in the tank every 2000 hours of work or every 5 years.
- Remove the old oil in a tray and dispose of it at the nearest recycling point.
- Fill the tank with new hydraulic oil to the level of the sight glass located at the front. The capacity of the
tank is approximately 13 litres.
- Return the hydraulic assembly to its location and secure it to the machine with the
bolts.
* We recommend the use of CEPSA HIDRÁULICO HM 68 hydraulic oil.

MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 9
4. INSTALLATION AND START UP
4.1. Positioning the machine
Locate the machine properly in order to avoid moving it; otherwise, follow the guidelines described in the
paragraph transport (no. 2). Must be placed on a flat, level surface to prevent it vibrating and moving during
bending operations.
It is optional to fix the machine by the four bolts since it is provided with a lower base or stand with four per-
forations as it’s shown in Figure 5.
Figure 5. Anchor points of the machine
4.2. Dimensions and work area
The dimensions must be considered when the machine is being placed, the working area for the operator
and the possible lengths of the parts to be worked.
The bending machine can be used by a single operator, who must be directly in the front of the machine to
be able to handle the piece being bend with safety, and never on the side.
Prior to commencing the bending operation, with the machine shut down, the operator must adjust the
Figure 6. Operator's working area
4.3. External permissible conditions
It is advisable to work under the following atmospheric conditions:
- Room temperature between +5 °C and +40 ºC without exceeding an average temperature of +35 °C
within 24 hrs.
- Humidity between 30% and 90% without water condensation.