Technical Characteristics; Important - Mestra R-030350 Mode D'emploi

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The R-030350 is a practical hydraulic press,

with maximum power level 15.2 tonnes (rated, 9.5

tonnes),

specially

manufacture of muffles for dental prostheses.

INSTRUCTIONS FOR USE

1. Put the muffle(s) between the plates (E) taking

care to centre it/them properly.

2. Bring up spindle (A) until it touches the

muffle(s), close up the screw (B) and start

pumping.

3. The pressure gauge will not stabilize until the

muffle(s) is/are compacted and all excess resin

is squeezed out. When the pressure gauge

needle is steady, optimum pressing has been

achieved.

4. To remove the muffle(s) from the press,

unscrew the locking screw (B) so that the

bottom plate (E) is lowered by the springs, and

the unit will be ready for the next pressing.

Every 50 Bars (725 psi) a pressure of 1,900 kg is

obtained. Thus at 100 bars (1450 psi) 3,800 kg is

obtained, and at 200 bars (2900 psi) 7,600 kg is

obtained. The maximum is 400 bars (5801 psi) or

15,200 kg of pressure. We do not advise going this

far, as the pressure gauge may suffer mechanical

damage at this level, and the service life of all

components of the press and the muffles may be

reduced.

The maximum recommended pressure is 250

bars (3625 psi), red mark on pressure gauge.

Normal working pressure is 150 - 250 bars

(2175 – 3625 psi).

If more liquid is needed use only EXTRA (SAE

10) oil. No other liquids may be used under

any circumstances.

IMPORTANT

During the warranty period this press should

only be handled at our workshops. Any

handling elsewhere will cause cancellation of

the warranty.

All assembly and disassembly operations

should be carried out with extreme care so as

not damage any part of the press.

If there is considerable oil spillage between

the piston of the pump (3) and the nut (4)

when the lower plate drops to its rest

position, too much oil has been put into the

unit (Fig. 1). Unscrew the oil filling screw and

allow excess oil to drain off. The level must

be between Max. and Min. (Fig. 1).

designed

for

use

the

PRECAUTIONS

 Do not operate the press with fragile materials.

 Protect yourself adequately during operation of

the unit, and use safety gauntlets and goggles.

 Do not allow children or unqualified staff to

handle the unit.

 Before using the facility, ensure that it is resting

on a firm solid base.

 Ensure that the items to be pressed are correctly

positioned between the plates.

 Be extremely careful to remove your fingers from

the plates before starting the pressing operation.