NPC DIGIT

The ORMAMACCHINE NPC presses are the result of constant studies in the research of highly functional and reliable machines. The main characteristics of these machines are:

PRESS STRUCTURE
• Structure entirely made of welded and tool machined beams. The choice to prefer the beam structure instead of the bended steel sheet (economically more viable) has come from the decision to offer to the client a highly reliable product where quality plays the main role.

HYDRAULIC SYSTEM
• The rams are thickness chromed to grant a perfect flowing and a higher working life either of the seal gaskets and of the piston itself. Even in this case quality has been our main concern, and we have chosen the thickness chromed system instead of the chrome bath which has lower costs but absolutely no lasting guarantee.
• All the cylinders are bolted to the structure, so to be easily removed in case of servicing. Another possibility is to weld cylinders to the structure but in so doing all the functions of the press would be of a much lower quality.
• Highly reliable hydraulic power units fitted with a double stage pump, first stage at low pressure and high delivery to move up the platen, second stage at high pressure and low delivery to get the working pressure set by the operator on the keyboard.
• Hydraulic power unit motor plunged in oil bath to get a better cooling and to reduce noise, and further more to avoid any possible damages caused by accidental shocks.

ELECTRIC SYSTEM
• General switch board from where the operator can set and use all the functions of the press. As a standard equipment all the presses are supplied with the automatic pressure recovery device. This accessory allows to keep the same given pressure, even in case the panel, under the platen thrust, shall lower its thickness.
• The switch board is mounted on a hinged door (with a 180° opening) so all the servicing operations can be easily carried out.
• On the digital display touchscreen type the operator can set and/or adjust all press functions, particularly:

  • working pressure (kg/cm )
  • working temperature (for presses with electric boiler)
  • pressing timer to adjust the pressing time
  • automatic switching On of the heating unit (for presses with electric boiler); possibility to set all days of the week
  • On/Off selection of one row pistons exclusion (the exclusion is standard on all presses with 8/10 pistons, while it is an option on all presses with 6 pistons)
  • possibility to use 50% capacity of the boiler (for boilers over 20 kW)

• Automatic calculation of the pressure in bar according to the specific pressure in kg/cm 2 2 which must be used for the panels to be worked.
• The electric switch board is manufactured according the CE rules and the controls are at low voltage.
• On all the NPC Presses as standard fitting there is a perimetral safety emergency cable that allows to stop or block the press platens from any side of the press.

MECHANICAL ELEMENTS
• All the NPC Presses are fitted with a crossed rack system so composed: 2 rack groups for the platen depth and 2 groups for the length all connected between them by torsion shafts so to grant a perfect platen movement.
• Nr. 4 lateral guides, positioned on the 4 interior faces of the press legs. This is a further guarantee of a perfect platen movement during either their opening or closing.
• The press platen flatness is guaranteed by the precision with which the beams are processed. indeed both the platens are made with beams welded between them and after mechanically milled.

NPC/A

SIDE LOADING VERSION

npc a

END LOADING VERSION

npc a2

NPC/R

npc r

Handling properly panels on through feed presses has always been a problem. To improve productivity and to facilitate these operations we designed and now manufacture the device shown in the bottom picture (NPC/R).

This device, or rather a double composite conveyor, allows the transfer of boards from the glue spreading machine onto the press lay up table turning them of 90°. The double conveyor, fixed to the press lay up table frame, is composed by a powered system whose knives run orthogonally to the press and by a free wheel conveyor, inserted in the same direction of the press infeed conveyor.

Once boards are in uloading position on the knife conveyor, acting on a lever, a pneumatic circuit turns up the free wheel conveyor and lets boards slide, for gravity, onto the press lay up table. Through feed press type NPC/R can be chosen among our following standard sizes 2500 x 1300, 3000 x 1300, 3500 x 1300 mm. working pressures range from 40 up to 200 ton.

NPC/RF

npc rf

The Press type NPC/RF includes three working units:

A. Loading conveyor for the preparation and following feeding of material to be pressed into the press platens.

B. The press belongs to the NPC series equipped with a motorization system for the piece movement on the mylar belt. The panels to be processed are coming from the loading section and throughout the mylar belt are positioned on the hot platens of the press where the pressing cycle will take place. Then the driving device reverses the sense of rotation, unloading, through the mylar belt, the pressed panels from the same side of the loading section, but at a higher level and at the same height of the unloading roller.

C. The unloading free wheel conveyor receives the pieces coming out from the press platens. This free wheel conveyor, during the loading phase is placed in a vertical position not to hamper the movements during the laying up of the panels. Once the pressing is over, automatically, it will position itself horizontally ready to receive the panels.

Under Construction