ACOPULS : Microlubrication system for instantaneous lubrication

ACOPULS systems


AP1EG-V	AP8EG-2E-V	AP3EG-3E-V	AP4EG-RAU-V	AP4EG-4I-05V

Way of functioning
Duty cycle
Applications
Applications at high pace
Models
Standard configurations
Standard options
Samples

Way of functioning

ACOVAL microlubrication systems of the type PULS are instantaneous lubrication systems. They deliver an amount of liquid each time they are activated. They can be used:

(1): to deliver an amount of liquid without using air to drive the liquid
(2): most often with a nozzle which focuses or sprays the liquid with compressed air.

Duty cycle

In he case (1) where an amount of liquid is delivered without using compressed air to drive the liquid, it is important to take into account the superficial tension phenomenon.

Repercussion of the superficial tension phenomenon

the amount of liquid delivered at a hole each time a micropump is activated is :	Natural behaviour	To extract the liquid each pulse	To spread the liquid out over time
bellow a drop	A drop falls down from time to time but not each time the micropump is activated	It's necessary: to suck the liquid up by capillary action (for example with a felt) to suck the liquid up with compressed air and nozzles.	Use of compressed air and nozzles
equal to a drop	A drop falls down each time the micropump is activated		Use of compressed air and nozzles
more than a drop	A drop falls down each time the micropump is activated. Other drops fall down from time to time.		Use of compressed air and nozzles (top)

Close the box

The driving duration and the time interval between two drives must allow an accurate working of micropumps.

In the case (2) where a nozzle focuses or sprays liquid, the driving duration of the system must be:

the same as the time required to spread the liquid (sample: a 3 seconds machining operation)
enough to allow the air pressure to establish at the nozzle and to treat the amount of liquid delivered by micropumps.

The time interval between two drives must be enough to allow a correct system initialisation.

Applications

The systems ACOPULS are often used:

to make short time spaced machining operations
to lubricate forming operations when the load is manual
to lubricate assembly operations.

Applications at high pace

Typical samples concern cutting, stamping and high pace machining operations.

The user often want a system of type PULS to work at the same rate as his equipment (his press or his machine tool). It is often a mistake because:

The number of delivered liquid quantities is so large that the liquid flow may be too important even with low capacity micropumps.
The compressed air pressure may not be able to take a good place in the nozzle. The functioning may be disturbed.

So it is better to use a system of the type ECOFLUX or ACOFLUX with a lower speed. The gas spreads the liquid out all along the time.

Models

These models in a cabinet generally include between one and six micropumps.

The liquid flow of each micropump is adjustable.

There is only one air flow setting or an air flow setting for each nozzle.

Standard configurations

These systems are fitted with:

a 300 ml tank
for each micropump:
- a 1.5 meter transparent coaxial hose
- a copper coaxial nozzle with its fastening

Standard options

0.5 ; 1 ; 2 ; 3 ; 5 ; 9 ; 10 litre tank
Low level switch
Automatic filling device
Micropump selection by groups
Attachment magnet under the system
Attachment magnets for the nozzles
Half capacity micropumps
Double capacity micropumps
VITON seals
Stainless steel sheathed coaxial hoses
Nozzles

Samples

AP1EG-V	a micropump a solenoid valve an one litre tank with a low level switch a stainless steel sheathed coaxial hoses a 150 mm copper coaxial nozzle.
AP8EG-2E-V	eight micropumps two solenoid valves a five litre tank with a low level switch eight stainless steel sheathed coaxial hoses eight short coaxial nozzles.
AP3EG-3E-V	three micropumps three solenoid valves a three litre tank with a low level switch three stainless steel sheathed coaxial hoses three nozzles each micropump are driven separately.
AP4EG-RAU-V	four micropumps a solenoid valve an one litre tank with a low level switch four stainless steel sheathed coaxial hoses four short coaxial nozzles.
AP4EG-4I-05V	four half capacity micropumps four selector switches manual switch automatic switch an one litre tank four stainless steel sheathed coaxial hoses four nozzles.