Details
Calm mould filling
The molten metal rises into the mould in a controlled way from below. This allows the mould cavity to be filled uniformly and makes the process suitable for castings with high quality requirements.
Kurtz Al 10-7 TC low pressure die casting machine ND1346, used
Year: 2001, Siemens S 7 control system, incl. Morgan NDEM 600/3 low pressure furnace, electrical heated
Kurtz ND- GM B47-48 low pressure die casting machine ND1348, used
Year of construction: 2015, max. part size: 850 x 400 x h 600 mm, top pull: min. opening: 600 mm; max. opening: 2400 mm, incl. BALZER holding furnace
CPC 1303 low pressure machine ND1342, used
Year of construction: 2003, control system: Allen Bradley SLC5/04, incl. Ilinden PS 500.36S holding furnace, electrically heated
Kurtz AK 96 Low Pressure Die Casting Machine, used
Year: 1994, Kuhnke control system, incl. Morgan NDEM 600/900 low pressure furnace, electrical heated, overhauled in 2014
Low Pressure Die Casting Machines
Low pressure die casting machines are mainly used for high-quality aluminium castings where calm mould filling, good feeding and reproducible part quality are essential. Typical applications include aluminium wheels, structural parts, housings, engine and chassis components as well as technical castings with high quality requirements.
FISS Machines offers used low pressure die casting machines and low pressure permanent mould casting systems from established manufacturers. Depending on the system, the low pressure furnace, mould, casting frame, control system, cooling, extraction unit and additional peripheral equipment may already be part of the machine solution.
Low pressure casting
Mould filling from below through the riser tube
In low pressure die casting, the molten metal is held in a pressure-tight furnace below the mould. Controlled gas pressure pushes the liquid metal upwards through a riser tube into the mould cavity.
The calm and uniform filling process reduces turbulence and supports clean mould filling. During solidification, the pressure can be maintained so that the casting is fed from the furnace.
Furnace and melt
Prepare the molten metal in the pressure-tight furnace
The alloy is melted or kept warm in the low pressure furnace below the mould.
Riser tube
Move the molten metal upwards
Defined gas pressure forces the liquid metal through the riser tube against gravity into the mould.
Mould
Fill the mould in a controlled way
The mould cavity is filled slowly and uniformly, allowing air and gases to escape upwards more easily.
Feeding
Feed the casting during solidification
The applied pressure supports feeding of the casting before the pressure is reduced and remaining molten metal returns to the furnace.
Why low pressure casting is used for high-quality aluminium castings
Low pressure die casting is used when castings must meet high requirements for structure, tightness, dimensional accuracy and surface quality. Filling the mould from below allows the molten metal to enter the mould comparatively calmly.
The process is especially useful when oxide films, cold shuts, air inclusions and unnecessary return material need to be reduced. At the same time, aluminium castings with good feeding and reproducible series quality can be produced.
Good feeding
During solidification, the casting can be fed by the applied furnace pressure. This supports directional solidification and stable component properties.
Less return material
Since feeders and complex gating systems can partly be reduced, low pressure casting is economically attractive for series production with aluminium alloys.
Components, materials and typical applications
Low pressure die casting machines are mainly used for aluminium alloys. Depending on the machine and process, magnesium, brass or other non-ferrous alloys may also be relevant.
Typical components include car wheels, aluminium rims, engine and chassis components, housings, fittings and technical castings for the automotive industry, mechanical engineering, aerospace, sanitary technology, household appliances and other industrial sectors.
What to check when buying a used low pressure die casting machine
When buying a used low pressure die casting machine, the manufacturer or year of manufacture should not be the only criteria. The decisive question is whether the machine, furnace, mould, control system, cooling, component size and existing automation match the planned production process.
Mounting area, clear width, stroke and component size
Condition of casting frame, hydraulics, guides and drives
Low pressure furnace, crucible, heating, sealing and furnace chamber
Riser tube, pouring nozzle, compensator and melt transfer
Mould, ejectors, slides, cooling circuits and temperature control
Control system, pressure curves, documentation and spare parts availability
Extraction unit, robot, automation and safety technology
Dismantling, transport, reassembly and later recommissioning
Used low pressure die casting machines from established manufacturers
FISS Machines trades used low pressure die casting machines and low pressure casting systems from established manufacturers. Depending on availability, systems from Kurtz, CPC, Fill, Tillcaster and other manufacturers may be considered.
Buy or sell used low pressure die casting machines
FISS Machines supports industrial companies worldwide in buying and selling used low pressure die casting machines. If a suitable system is not currently listed online, FISS can search its international network and check suitable offers.
When selling used low pressure die casting machines, FISS Machines supports technical evaluation, international marketing, buyer communication and project handling. In addition to brokerage and marketing, direct purchase by FISS may also be an option depending on the project.
