The pressure die casting machines have many qualities. Some of them are the following ones:

- Speed: these tools are pneumatic and completely computerized and they produce through a very high speed great quantity of pressure die casting dies.

- Precision: moulds are much smaller than which ones produced by traditional presses, they can be shaped more carefully and their maintenance is simpler and more efficient.

- Repeatability: producing more rapidly also means build moulds with less cavities maintaining competitive prices.

- Planning Freedom: thanks to new technological solutions these presses can now produce any kind of objects and shape.

- Flexibility: all these new machines can allow specific and customized solutions: not only moulds but also machines themselves can be built in relation to the object that should be produced.

- Cheapness: all these qualities produce economical benefits for the final consumer because these tools offer an important prices reduction and the increase of the items performances.

Technically this kind of tool is made up by:

- an engine powered by electricity

- some rotating abrasive blades.

These disks can be made up by diamond, corundum or by silicon carbide. The corundum is an aluminium oxide and it is usually used to prepare special abrasives while the silicon carbide is a very tough mineral: its hardness is only surpassed by that of diamonds. Even this material, together with the previous ones, is used in industry as an abrasive and wayward material because of its resistance to high temperatures (up to two thousand centigrades).

The most common application of the honing machine is in the production of internal combustion engine cylinders and of hydraulic components.

Within the industrial production chain, the honing machine is used after that all the mechanical pieces have been corrected and polished. In the smoothing industrial processes the object that should be treated is inserted in the tool by maintaining a constant pressure of the blades.

This functional tool smooths materials thanks to its rotating and oscillatory movements by refining the object. The best application of this kind of machinery is applied in the automobile industry.

- cast iron

- carbon steel

- stainless steel

- bronze

- marine bronze

Other very important steps in the production of these items are represented by the mechanical processes and by the treatment of surfaces. All the technological advanced modern engines can now be supported by the presence of very innovative check valves that have been developed to fully satisfy all the different needs of the most complex hydraulic systems that characterize many industrial machinery.

The main purpose of these valves is to maintain a set pressure in a given circuit, usually to counterbalance a weight or external force or counteract a weight keeping it from free-falling. The pressure setting is lightly higher than that needed to keep the load from free-falling. Specific counterbalance valves are commonly drained internally. When the cylinder extends, the valve open and its secondary port is linked to reservoir. When the cylinder retracts, the so-called hydraulic check valves bypasses the valve’s spool.

Overcenter valves and counterbalance valves have more or less the same function: as it has been already said, they aim at maintaining a set pressure opposite a load by keeping it from free-falling. Differing from counterbalance valves, the overcenter ones are characterized by a pilot signal that assists in opening the spool. This technical feature makes these particular valves much more functional and efficient by reducing the horsepower requirement and heat generation in the whole hydraulic system.

OTM produces exclusive “ad hoc” protection systems that enable the manufacturing of made to measure protective packaging capable of constantly guaranteeing minimum clutter and maximum safety.

Each type of protection is produced by the Italian company: threaded plugs and caps; pipe end protections; flange protections; high temperature protections; safety and special protections.

The high quality of products and the services offered assures the maximum satisfaction of the customers. It also manufactures special items based on specific needs or based on client designs.

OTM – Special protections
20040 AicuRzio (MI) ITALY