Cold chamber


Cold chamber die casting machines from 200 to 3200 ton for moulding aluminium, brass and magnesium.

The face of efficiency with the highest reliability

Each PFO Series die casting machine is designed and built to be fully digital and is completed by a memory to save dies parameters (Control System). The control of the data, their recording and saving allow to repeat the optimal pressure, speed and stroke parameters for each single die, displaying the injection curves for each casting (Fullcoltrol).

The double-circuit injection unit with floating piston accumulators operates at the highest speeds and is suitable for all die casting needs for magnesium, aluminum and brass. The injection allows to choose between a first phase at constant speed “under pump” or progressive “under accumulator”. The control of the multiplier takes place through an independent circuit – powered by its own pre-chargeable accumulator – which guarantees to carry out this phase with the force necessary for each injection profile.


Thanks to more than fifty years of experience in the sector, Colosio specializes in the production of die casting machines for light alloys. The Colosio range of cold chamber machines – specific for the die casting of aluminum, brass and magnesium – ranges from 200 up to 2500 tons of clamping force.

U.M.PFO 200PFO 250PFO 320PFO 400PFO 560PFO 750PFO 1000PFO 1200PFO 1600PFO 2000PFO 2500
HA maxmm28492909293931003094314832823878402042304646
HA minmm26892709273929002874288830223578397037304146
AI maxmm13101360140014201470154516151775192521102220
AI minmm11501160120012201250128513551475152516101720
U.M.PFO 200PFO 250PFO 320PFO 400PFO 560PFO 750PFO 1000PFO 1200PFO 1600PFO 2000PFO 2500
Locking forcekN196224533139412056907701981012115158921991424672
Max injection forcekN262288361442522751738980102515951801
Ejection forcekN121170170170266372372563603814865
Min die heightmm200200200250350400450450550500650
Max die heightmm50055070075085095010001100120014001600
Moving platen strokemm4604805006007207508801000114013501500
Ejection strokemm100110120130170170200220240300300
Platens dimensionsmm700 700800 800880 880980 9801120 11201270 12701410 14101540 15401750 17502020 20202240 2240
Distance between tie-barsmm450500560620715800900995110012601430
Tie-bars diametermm90100110125145170190205240280300
Max shot weight (AL)Kg22,63,34,76,510,313,217,324,235,642,4
Max projected area (400 kg/cm²cm²500625800105014501962,525003087,5405050756287,5
Casting cycles (empty)N°/1’141211108665332,5
Machine weightkg10200127001550188002528033450430005950080000110000140000
Overall dimensions (Width - Length - Height)mm2050 5502 28492150 6080 29092230 6365 29392290 6738 31002430 7613 30942600 8618 31482740 9185 32823700 10981 38783910 11498 40204180 12365 42304400 13011 4646


The Green Line system

In addition to the high technical and production performance at Colosio, we aim to reduce the operating costs and environmental impact of our die-casting machinery as much as possible. This is why we have designed and implemented the system to ensure maximum energy savings.

The aluminum, brass and magnesium die casting machines are available with the innovative GREEN LINE system, a new reference model of energy saving system for cold chamber machines.


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