ELMAC/F1

Automatic machine for forming sand cores with the HOT-BOX system

DESCRIPTION OF THE ELMAC F1 machine

The ELMAC F1 machine for foundries is a universal product for forming sand cores using the Hot Box system. Electro Mac Srl offers the market this top quality, very reliable and extremely precise machine: cores have no burr and they are compact, even if sand is injected at a low pressure. This exceptional qualitative result is made possible by a mould tight closure system supported by four hardened, ground guiding columns and by a mould holder car moved by means of a hydraulic cylinder able to develop a closure force of 3,000 kg. The mould heating plates are made of highly non-deformable special steel in order to guarantee perfect and tight closure of the mould at any operating temperature. This is indispensable to obtain homogenous and well pressed surfaces of the sand cores. The Elmac F1 machine of Electro Mac Srl is particularly easy to use and to maintain even by non-specialized staff. This results in a significant reduction of rejects, control times and machine downtimes and in an increase of the production yield and savings. The structure of the bed of the Elmac F1 automatic machine is made of electro-welded steel with a thickness of 10 mm. Sand cores are transported to the mould by a conveyor belt. The central extraction of the workpiece is carried out by the mobile tilting part of the plate. The hydraulic control unit is equipped with electrovalves and a filter located on the discharge. The pneumatic panel is mounted on board the machine and it consists of electrovalves with an ISO base. Furthermore the Elmac F1 machine is equipped with an auxiliary keyboard complete with selector switches for manual handling and for setting the work cycle. The work cycle times can be saved from 0 to 9.

HEATING OF PLATES
  • Electrical, with a power of kW 5 F1/6 F2 for each plate
  • On-off temperature control with an independent heat regulator on each plate
  • Pre-heating time: about 40’ to reach 350 °C
  • Mould hydraulic closing force: 3000 kg
ADVANTAGES
  • better product quality
  • better resistance to wear
  • fewer rejects
  • higher productivity
  • immediate operability
  • extremely simple use
TECHNICAL DATA
INJECTION4,5 Kg.
INJECTION CAPACITY3 Lt.
MAXIMUM DIMENSION OF THE CORE BOX:
WIDTH450 mm.
MAXIMUM THICKNESS120+120 mm.
MINIMUM THICKNESS40+40 mm.
HEIGHT300 mm.
EXTRACTION STROKE
3D RADIAL EXTRACTION
350 mm.
TECHNICAL DATA
TOTAL INSTALLED POWER16 Kw.
HYDRAULIC PRESSURE150 Atm.
MOULD CLOSING FORCE 3.000 Kg.
HYDRAULIC CONTROL UNIT5,5 Kw.
AIR PRESSURE6 Atm.
AIR CONSUMPTION
Nm3/min. 0,5
VACUUM CYCLE TIME10 Sec.
TOTAL MACHINE WEIGHT2.500 Kg.
TECHNICAL DATA
MACHINE OVERALL DIMENSIONS:
HEIGHT2.400 mm.
WIDTH4.500 mm.
ELECTRICAL HEATING OF THE HEATING PLATES:
POWER OF EACH INDIVIDUAL HEATING PLATE6 Atm.
ARMOURED RESISTANCE UNITS48V./2.500W.
PRE-HEATING TIME TO ACHIEVE 300°30 Min.
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