DROPSA MiQueL EXT, MiQueL EXT PRO - i, MiQueL EXT BASE, MiQueL EXT BASE - i, MiQueL EXT PRO User Operating And Maintenance Manual
http://www.dropsa.com
MiQueL EXT
Air/oil modular minimal system
With external pump
User Operating and
Maintenance Manual
Original text translation
Warranty Information
CONTENT
1. INTRODUCTION
2. GENERAL DESCRIPTION
3. IDENTIFICATION OF THE MACHINE
4. TECHNICAL FEATURES
5. MACHINE COMPONENTS
6. UNPACKING AND INSTALLATION
7. INSTRUCTIONS FOR USE
8. PROBLEMS AND SOLUTIONS
9. MAINTENANCE PROCEDURES
10. DISPOSAL
11. ORDER INFORMATION
12. DIMENSIONS
13. HANDLING AND TRANSPORT
14. PRECAUTIONS FOR USE
15. OPERATIONAL HAZARDS
16. WARRANTY
17. DECLARATION OF COMPLIANCE
18. DISTRIBUTORS
The manual has been prepared in compliance with Directive C2168IE – WK 01/12
EC 06/42
2
1. INTRODUCTION
Serbatoio pressurizzato
(Optional)
1
2
3
4 5 5
6
7
This user and maintenance manual relates to the MiQueL EXT.
Using this pump means that oils and greases can be distributed within lubrication systems even at high pressures of up to 400
bar (5880 psi).
The latest version may be obtained from the Technical-Commercial Office, or by consulting our web site
http://www.dropsa.com.
The pump subject of this manual must be used by qualified personnel with basic hydraulic and electrical knowledge.
This user and maintenance manual contains important information about protecting the health and safety of the personnel who
intend to use this apparatus. You must read and look after it carefully, making sure that it is available at all times for the
operators who intend to consult it.
2. GENERAL DESCRIPTION
Operation
The system consists of a pressurised lubricant tank, one or more mixture regulation modules, pipes and spray nozzles (see
hydraulic diagram below).
The lubricant is sent to mixing valve through an external pump or a pressurised reservoir.
Each module has oil and air check valves that are controlled manually by the operator. The outward oil and air flow can
be managed independently between the different modules using a mini solenoid valve (“-i”version only) that activates the
control valves on the module. The module has a compensation valve (“PRO” version only) is able to keep the flow rate
constant as the inlet tank pressure and outlet counter-pressure varies.
The lubrication pipes can be traditional or coaxial. In the latter case, the lubricant and nebulisation air are transported
separately to the nozzle. The piston keeps the oil from dripping from the nozzle when the lubrication operation is complete.
Hydraulic diagram
Spray nozzles
When traditional pipes are used, the air and oil are already mixed when they arrive at the nozzle.
If coaxial pipes are used, the nozzle mixes the air and oil at the point to be lubricated. The lubricant is atomised in minuscule
particles by the air flow that passes in front of the oil outlet hole.
The geometry of the nozzle is designed based on the type of spray to be obtained (conic, blade-shaped, etc.).
Advantages
Easy to install on the machine
Reduction in tool wear
Improved surface finish on the part
No lubricant residuals left on the part when the work is complete
The nozzles do not drip after being turned off
Large spray range (up to 300 mm)
Greater safety and environmental hygiene at the workplace
3
Application
TECHNICAL SPECIFICATIONS
Pumping system
External pump
Maximum number of modules
8
Maximum Oil inlet pressure
2,5:1 in relation with air inlet pressure
Air inlet pressure
4bar ÷ 7bar [87psi ÷ 101,5psi]
Maximum air consumption at the outlet
~50Nl/min (per module)
Air inlet pipe
Ø6mm
Oil inlet pipe
Ø6mm
Air outlet pipe
Ø6mm
Oil outlet pipe
Ø3mm
Oil flow rate per element (with compensation valve)
0 ÷ 2cc/min (oil 10cSt ÷ 32 cSt)
0 ÷ 0,5cc/min (oil 32cSt ÷ 100 cSt)
Lubricant
10cSt ÷ 100cSt
Pressure switch calibration
6bar [87psi]
Element solenoid valve power supply
24Vdc
Operating temperature
+5°C ÷ +50°C
Storage temperature
-10°C ÷ +80°C
Max relative humidity without operating condensate
90%
Sound level pressure
< 70 db (A)
Solenoid valve
(“-i ” version only)
Pressure gauge
(optional)
Push-in pipe Ø6 air
outlet
Air regulation
Oil regulation
Compensation valve
(“PRO” version only)
Push-in pipe Ø3 oil
outlet
Machine tools
Machines for cutting and bending plate
Steelworks
The units are supplied without accessories. The installer is responsible for providing the accessories needed for safe and
correct operation (condensate separator, filters, pressure gauges, by-pass, etc…).
3. MACHINE IDENTIFICATION
There is a plate on the side of the unit that displays the product code, the power supply voltages and the basic characteristics.
4. TECHNICAL SPECIFICATIONS
5. MACHINE COMPONENTS
MODULAR ELEMENT
4
Assembly system / increasing modular elements
Final closure
screws
Modular element
Screw assembly modules
Fixing intermidia set screw
Starting element
End cover
Modular element outlets
Air inlet
Mounting screws
Ø3 pipe removal tool
Oil inlet
MiQueL PRO-i EXT Module
5
Pressurized reservoir for MiQueL EXT (optional)
ATTENTION: Always install a regulator filter with condensate recovery on the air inlet. Any unfiltered deposits
or sediments could irreparably damage the product.
TECHNICAL SPECIFICATIONS
Reservoir capacity
1lt – 3lt
Air inlet pressure
4bar ÷ 7bar [87psi ÷ 101,5psi]
Air inlet pipe
Ø6mm
Oil outlet pipe
Ø6mm
Pressure switch calibration
6bar [87psi]
Maximum pressure switch load
Voltage free contact maximum voltage 250V
Maximum power 100W
Maximum electric level load
0,2A @ 30V
1lt Reservoir
3lt Reservoir
Pressure switch
Pressure gauge
Loading cap
Visible level
Air inlet
Oil Outlet
Mounting
brackets
Reservoir
Minimum electric
level
6
6. UNPACKING AND INSTALLATION
6.1 UNPACKING
Once the suitable location for installation has been identified, open the package and remove the unit.
Check that it was not damaged during transport or storage.
The packaging material does not require special disposal precautions as it is not in any way dangerous or polluting.
6.2 INSTALLATION
Allow a sufficient amount of space for installation, leaving a minimum perimeter space of 100 mm (3,93 in.).
Install the unit at “shoulder height” to prevent abnormal positions or the possibility of impacts.
Use the brackets with the holes (see chap. 12) to fix the unit properly. It is also possible to disassemble the brackets from their
current position and reassemble them in the prepared threaded holes for side or corner installation.
It is prohibited to use the unit if submersed in fluids or in a particularly aggressive or explosive/inflammable environment if not
previously prepared for that purpose by the supplier.
Use safety gloves or glasses as specified in the safety sheet for the lubricant.
Do not use aggressive lubricants with NBR gaskets. In the case of doubt, contact the Dropsa SpA technical office to receive a
detailed card about the recommended oils.
Do not ignore the hazards to health and comply with the health regulations.
6.3 PNEUMATIC CONNECTIONS
Before making the connection, check that the valve for the main air, the manual sliding valve and the check valves (air and oil)
are closed. Make sure that the inlet pressure does not exceed 7bar.
Use fittings and pipes that are suitable for the operating pressures, push-in connection for Ø10mm pipe.
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