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IMG S.r.l.

Via Industriale 106 - 108
25020 Capriano del Colle (BS)
+39 030 314645
info@imgmacchine.it

The best is yet to gum

Gum Horizontal

IMG’s horizontal moulding machines for elastomers belong to the GUM family and are available with 3 mould clamping types: Hydroblock, toggle, toggle and Hydroblock (with piston). Each of these 3 clamping systems is available with 3 injection units: reciprocating screw injection, screw + piston injection and FIFO injection.

The reciprocating screw injection system is the most requested type by IMG customers, because it is extremely versatile. The screw + piston injection system is recommended for production involving large quantities of raw material (rubber). The third system, the FIFO injection system, is smaller in size than the other two and allows the creation of a machine with compact final dimensions, particularly suitable for customers with reduced space availability. FIFO stands for “first in-first out”. This type of injection ensures that the raw material entering the chamber is always the first to be injected through the nozzle, so the material used is always the most recent.

In our horizontal rubber machines, the moving platen is self-guided on the base with recirculating bearing guides and an automatic grease unit. The reaction head and the cylinder-cutter supports have recirculating bearing guides. IMG’s horizontal rubber machines are equipped with “free” moving platen columns and square heating platens with chamfer, with corresponding insulating plates.

In our horizontal rubber machines, the moving platen is self-guided on the base with recirculating bearing guides and an automatic grease unit. The reaction head and cylinder-cutter supports have recirculating bearing guides. IMG’s horizontal rubber machines are equipped with “free” moving platen columns and square heating platens with chamfer, with corresponding insulating plates.

Advantages

  • 3 available closures: Hydroblock, toggle, toggle and Hydroblock (piston): click below for available closures.
  • Self-lubricating bushings on the reaction plate and latch strut.
  • Insulating plates type ORVIN 340° max.
  • 3 types of injection available: with reciprocating screw injection, with screw + piston injection and with FIFO injection.
  • Hydraulic ejector/ Electric central ejector.
  • Electric strip loader.
  • Painting of machine according to customer specifications (all colours).
  • On our horizontal machines we provide the “shifter system”, which allows very flexible mould height adjustment.

Main technical features, specifications for standard machines

Clamping force: 1,000 – 4,500 Kn

Injection capacity: 200 – 2,500 cm3

Max daylight between platens: 0 – 1,300 mm

Mould thickness: 0 – 600 mm

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Technology The closures available

Hydroblock clamping unit

IMG’s horizontal GUM machines with Hydroblock closure are recommended for the production of technical parts (or items with high precision requirements). This unit allows the degassing cycles required for certain materials and enables high moving platen strokes. Lastly, the clamping force applied to the mould coincides with the set hydraulic force.

These machines are available with reciprocating screw injection, screw + piston injection and FIFO injection.

Hydroblock clamping for horizontal moulds consists of the following 3 steps:

  1. fast approach of the moving platen, by means of 2 hydraulic cylinders;
  2. insertion of a plate (cutter) which locks struts connected to the moving platen;
  3. closure of the mould by means of a central high-pressure piston with reduced stroke.

The feature of the Hydroblock clamping system consists in having the two movements of rapid approach and actual compression separate from each other: this allows 2 specific operations (which are not possible with simple piston or toggle clamping):

Transfer moulding: in case of problems in filling the mould cavity, due to the high viscosity of the material, or other filling problems;

Degassing (both during and after the injection phase): degassing consists in being able to eliminate the gases generated in the mould cavity during or after injection, again taking advantage of the possibility of alternating the two opening movements, (1) approach and (2) compression, of the Hydroblock closure.

Toggle clamping unit

IMG’s horizontal toggle-clamp GUM machines are excellent for the production of O-RINGS and plain articles.

These machines are available with reciprocating screw injection, screw + piston injection and FIFO injection.

Toggle closure + Hydroblock (with piston)

IMG’s horizontal GUM machines with toggle closure + Hydroblock (with piston) are flexible solutions that combine the advantages of both closures.  Recommended for customers with frequent production changes.

These machines are available with reciprocating screw injection, screw + piston injection and FIFO injection.

Contact us for more informations

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