NARGESA MC200H 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
MC200H

Thank you for choosing our machines
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MC200H BENDING MACHINE INSTRUCTION BOOK 2
TABLE OF CONTENTS
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. INSTALATION AND START UP ..............................................................................................
4.1. Positioning the machine .............................................................................................
4.2. Dimensions and work area .........................................................................................
4.3. External admissible conditions ...................................................................................
4.4. Instructions for connecting to the power supply ..........................................................
5. INSTRUCTIONS FOR USE .....................................................................................................
5.1. Bending principles ......................................................................................................
5.2. Assembling the rollers ................................................................................................
5.3. Positioning the base-plate ...........................................................................................
6. WARNINGS .............................................................................................................................
6.1. Residual hazards .......................................................................................................
6.2. Counter-productive methods ......................................................................................
6.3. Other recommendations .............................................................................................
7. ASSEMBLY OF THE ROLLERS ............................................................................................
7.1. Bending capacity ........................................................................................................
7.2. Different bending samples ..........................................................................................
8. OPTIONAL ACCESSORIES ...................................................................................................
TECHNICAL ANNEX
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MC200H BENDING MACHINE INSTRUCTION BOOK 3
1. MACHINE DETAILS
1.1. Machine identification details
Trademark: NARGESA
Type:Hydraulic bending machine
Model: MC 200H
1.2. Dimensions
Figure 1. External dimensions of the MC200H bending machine
1.3. Description of the machine
The MC200H 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, an-
gles, etc.
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 roll-
ers for works with stainless steel or aluminium, manufactured with *Sustarin, that prevents scratches and
damage on the surfaces.
* 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.

MC200H BENDING MACHINE INSTRUCTION BOOK 4
1.4. Machine part identification
Anchor point
Vertical roller guide adjustment screws
Terminals cover
General switch
Hydraulic piston
Piston rod
Top roller - smooth *
Lower rollers - knurling *
Pedals
Base-plate fastener
Electrical panel
Hydraulic set
Adjustment of the piston stop
Roller guides deformation
adjustment
Mobile control
Emergency
stop
* Bending rollers

MC200H BENDING MACHINE INSTRUCTION BOOK 5
Figure 2. Nameplate
1.5. General Characteristics
Hydraulic engine characteristics
Motor power 1.1Kw/1.5 CV a 900 r.p.m.
Voltage 230/400 V Triphase
Intensity 5.2 / 2.6 A
Type of pull Two rollers
Roller speed 8 r.p.m.
Axes diameter 40 mm
Axes useful length 74 mm
Structure material Plate
Total weight 360 Kg
Dimensions 700x830x1530 mm
Motor power 0.75 Kw/1 CV a 1400 r.p.m.
Pump flow 1.5 l/min
Work pressure 210 bars

MC200H 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 pre-
cautions during bending operations in order to avoid entrapment between the rollers and the piece being
bent.
Figure 3. Mechanism protection guards

MC200H 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
- Do not take apart for storage
CAUTION:
Before moving the machine, it is essential to check that the screw located in the interior of the cabinet, at
its top, is properly secured. This ensures the work of the machine in vertical position without it moving.
If the machine is moved while it is in upright position without the screw being correctly secured, there is
danger that the machine could tip over, damaging its structure or harming users handling it .

MC200H BENDING MACHINE INSTRUCTION BOOK 8
3. MAINTENANCE
3.1. General maintenance
- It is recommended to keep the piston rod clean, whenever possible, to ensure proper operation and to ex-
tend its useful life.
- 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.
- Carry out a regular check of the oil level in the hydraulic tank located in the interior of the base. The upper
roller must be positioned at its highest point in order to obtain a correct oil level reading .
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.
- Lubricate the machine on a regular basis according to its use.
* It is recommended that you use lithium grease type: N.850 EP-2 for bearings.
The following is recommended to replace the hydraulic oil:
- Each 500 hours of use, check the oil level in the tank
- The oil plug is located at the top of the tank. In the event of having to add oil, fill until the peep hole, at the
front of the tank, is covered.
- Replace the hydraulic oil in the tank after every 2000 hours of work, or every 5 years. The screws holding
the tank must be removed in order to replace the hydraulic oil. The drain plug is located at the bottom of the
tank.
- Extract the oil with the help of a bucket and deposit it at the nearest recycling point.
- Fill the tank with new hydraulic oil until the oil covers the peep hole located at the front. The tank capacity
is approximately 8 litres.
- Return the hydraulic unit to its location and secure it to the machine using the screws.
* It is recommended the use of CEPSA HYDRAULIC HM 68 hydraulic oil.
CAUTION:
The "Emergency Stop" push button must be pressed and the machine brought to a stop in order to
lubricate the machine”.

MC200H 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 possible to fix the machine using bolts due to the fact that it already comes with a lower base with four
holes as 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
bending rollers, adapting them to the material and the profile to be bent, as shown in paragraph 7,
figure 13 .
Figure 6. Operator's working area
4.3. External permissible conditions
- Room temperature between +5 °C and +40 ºC without exceeding an average temperature of +35 °C with-
in 24 hrs.
- Humidity between 30% and 90% without water condensation .