-micron filtration systems; filtration systems with sludge compaction for emulsions or neat oil. These systems are aimed at companies caring about productivity and quality, in a clean and healthy working environment. In the current machine works market , a constant innovation is needed. Therefore, the use of filtration systems gives so many advantages that the filtration of lubricant and coolant fluids has become an additional activity aimed at the valorisation of the main production activity. The advantages of PMPO systems also positively influence the quality of the final products: thanks to the high quality of the filtered lubricant and coolant fluid, (medium filtration at 5 μm), the roughness incidence decreases and the grinding disc gives high performances for a longer time, so to limit the frequency of wheel dressing. Logistic advantages: With a plan dimensions of 2,5 m², it is possible to supply entire production lines or complete plants (rhuge space recovery). Economical advantages, that allow a fast return of the investment: the automatic regeneration of filtering parts and the longer life of the lubricant and coolant fluid (always clean and oxygenated) result in a reduction of administration and ordinary maintenance costs; the longer life of the lubricant/coolant fluids also allows  a reduction of the costs for waste disposal and the costs for the purchase of new lubricant/coolant fluids. These aspects highlight one of the main characteristics of the current filtering systems PMPO, that is the reduced environmental impact for companies that will install them.

List of the main applications:

• grinders
• working stations
• lathes
• lapping machines
• boring machines
• rolling mills
• drilling machines
• tumblers

The treated lubricant and coolant fluids are:

• emulsions
• neat oils

Materials worked by the machine tools and filtering systems are:

• iron
• steel
• brass
• copper
• alloy
• nickel
• chrome
• calamine
• hard metal

The pumps manufactured by PMPO have internal gears with lobe-type gear-teeth. This type of pump has more advantages over other types of pumps that use different principles; they are quieter, the flow is more consistent and manageable, and they are less bulky. PMPO produces this technology with an industrialized process that guarantees the technical data, the duration and the inexpensiveness of the product. The technical office is also designated to come up with customizations in order to adapt the product to particular applications, which are integrated later on in the production. The majority of the parts are made with synthesized materials. Thanks to material selection, process inspections, final verifications and the concept of self-lubrication, pumps have a long life and their warranty can be extended up to 3 years. The pumps are checked and 100% certified  in compliance with the client’s specifications. All the models are reversible, which means that by inverting the rotation direction , the intake inlet becomes the outlet and vice versa. The pump shaft is coaxial to the pump itself, so to make it easy to apply and less bulky. The main application of the pumps is by submersion in the tank; operations outside the tank are also possible and, in this case, the pump is locked inside jackets with coupling flanges and interface for the inlet and outlet (like, for instance, in the continuous control units, included in the catalogue).

A wide range of models is available. Here are some possible applications:

• power unit supply (control units, actuators)
• lubrication
• fluid transport
• aspiration(for instance, continuous emptying of chambers containing oil drops)
• oil–pressure motor

Technical features:

PMPO offers 2 types of pump:

1. pressure pumps
   • displacement from 0.3 to 2 cc
   • pressure until 120 bar
   • standard rotation speed until 3000 rpm
   • small size (external diameter  = 6 cm)
2. flow-rate pumps
   • displacement from 2.7 to 8 cc
   • pressure until 20 bar
   • standard rotation speed until 7000 rpm
   • small size (external diameter = 6 cm)

Lobe-type pumps are used with the following fluids:

• hydraulic oils
• lubrication oils
• gasoline
• diesel fuel
• polyol and isocynate (for the production of polyurethane)