GDC MACHINES

Gravity Die Casting (GDC) Machine Manufacturer in Pune, Maharashtra, India

Desire Hydraulics is a GDC Machine Manufacturer designing and building Gravity Die Casting Machines in-house at MIDC Bhosari, Pune — including Tilting, Stationary, Alloy Wheel, Vertical, Horizontal and Special Customized GDC Machines — sized to your clamping force, platen and daylight requirement, and pressure-tested before dispatch to foundries across India and the UAE.

Technical diagram of a Gravity Die Casting (GDC) machine showing the tilting die unit, die halves and pouring ladle TILT 95° DAYLIGHT PLATEN WIDTH 500mm CLAMPING FORCE 15T

Built for consistent, repeatable castings

A Gravity Die Casting (GDC) Machine uses gravity — rather than injected pressure — to fill a reusable metal die with molten non-ferrous metal, most commonly aluminium. Desire Hydraulics manufactures tilting-type GDC machines in Pune, Maharashtra, where the die tilts through a controlled arc during pouring so the metal fills the cavity smoothly, reducing turbulence, porosity and rejection rates compared to static pouring.

Every machine is engineered around a hydraulic clamping unit that holds the two die halves shut under load during solidification, and a tilt-drive assembly that governs the pour angle and speed. Because both are built in-house, we can size the clamping force, platen width, daylight opening and tilt angle to the actual part being cast, rather than fitting your job around a fixed catalogue frame.

Frames, cylinders, tilt gearboxes and control panels are fabricated, assembled and pressure-tested on our own floor at MIDC Bhosari before a machine is cleared for dispatch — the same in-house approach behind the 5,000+ hydraulic machines we've delivered across India and the UAE.

What is a GDC Machine?

A GDC Machine, also known as a Gravity Die Casting Machine, is equipment used to produce cast components using a reusable metal mould or die. Unlike high-pressure die casting, where molten metal is forced into a die at high injection pressure, gravity die casting relies mainly on controlled pouring and gravity to fill the mould cavity.

The die is normally manufactured from suitable tool steel or other appropriate die materials and consists of mould sections that create the required shape of the casting. Depending on the component, the die may also incorporate cores, slides, cooling passages, runners, gates, vents and an ejection arrangement.

The basic objective of a GDC machine is to provide controlled and repeatable movement of the die, controlled pouring and filling conditions, suitable cooling or solidification conditions, and safe removal of the finished casting. Modern casting equipment can incorporate hydraulic systems, mechanical mechanisms, sensors, controls, temperature monitoring, automated die movement and other auxiliary systems to improve consistency and productivity.

In short: Gravity Die Casting (GDC) is a permanent-mould casting process in which molten metal fills a reusable metal die primarily under gravity, rather than being injected at the high pressures used in conventional high-pressure die casting.

How does a Gravity Die Casting machine work?

The Gravity Die Casting process follows a sequence of controlled operations. The exact cycle depends on machine design, component, alloy and die configuration, but the underlying principle stays the same.

Die Preparation

The reusable metal die is cleaned and prepared, with a suitable coating or release treatment applied depending on the alloy and process requirements before it is positioned for the next cycle.

Die Closing

The mould sections are brought into the required closed position, with alignment and clamping maintained so the die stays properly closed during filling and solidification.

Molten Metal Preparation

The selected alloy — typically aluminium or another suitable non-ferrous alloy — is melted separately and brought to the required pouring temperature and condition.

Pouring and Die Filling

Molten metal is introduced through the designed pouring system, with gravity carrying it through the sprue, runners and gates into the mould cavity while the gating and venting control the fill.

Solidification

Once the cavity is filled, the metal cools and solidifies against the die surfaces. Cooling channels in the die help control heat removal and support consistent, defect-free solidification.

Die Opening and Ejection

After sufficient solidification, the die opens and the casting is removed — manually, mechanically, hydraulically or via automation — before it proceeds to trimming, machining, inspection or finishing.

Main components of a GDC machine

A Gravity Die Casting Machine brings together mechanical, hydraulic, electrical and control systems. The exact configuration depends on the machine type and the customer's requirement.

Die mounting arrangement
Die opening & closing mechanism
Hydraulic system
Hydraulic cylinders
Control panel
Electrical control system
Die locking arrangement
Pouring arrangement
Runner & gating system
Cooling arrangement
Ejection mechanism
Safety guarding
Sensors & limit switches
Temperature monitoring
Automation interfaces
Operator controls

The die itself is one of the most important parts of the complete casting system. A properly designed die must provide suitable metal flow, venting, cooling, ejection and dimensional control.

What goes into every GDC machine we build

Standard on every unit, and adjusted to your part before fabrication begins.

Controlled tilt pour

Motorised tilt drive governs pour angle and speed for a smooth, low-turbulence fill.

Hydraulic die clamping

Sized clamping cylinder holds die halves shut under solidification pressure without drift.

Custom platen & daylight

Platen width and die-opening daylight built to your tooling, not a fixed frame size.

Safety interlocks

Guarded tilt zone and clamp interlocks to keep the operator clear during the pour cycle.

Panel-mounted controls

Straightforward electricals for tilt, clamp and cycle control — PLC control on request.

Pressure-tested before dispatch

Every clamping cylinder and tilt drive is run and checked under load before it leaves our floor.

Typical GDC machine specification range

Every machine is engineered to the part being cast — these ranges reflect what we commonly build; exact figures are confirmed against your drawing.

Machine typeTilting-type Gravity Die Casting (GDC) Machine
Clamping forceCustom-built to part and die weight, as per requirement
Platen widthSized to your die tooling
Daylight (die opening)Sized to your die height and ejection stroke
Tilt angleUp to approx. 95°, motor-driven
Clamping typeHydraulic cylinder clamping
ControlPanel-mounted controls; PLC/semi-automatic control available on request
ConstructionFabricated steel frame, in-house machining and assembly
TestingPressure-tested under load before dispatch

Looking for an exact clamping force, platen size or tilt profile? Share your die drawing and part weight and we'll size the machine against it.

Types of GDC machines we manufacture

Different castings require different machine configurations. The right configuration depends on component design, die arrangement, alloy, casting method, production volume, automation requirement and the desired method of filling and solidification.

GDC Tilting Machine

Tilts or rotates the die during the casting cycle so controlled die movement — instead of a fixed pouring position — creates a more controlled filling sequence.

  • Better control over filling sequence
  • Suitable for selected complex castings
  • Adaptable die orientation, supports automation

GDC Stationary Machine

Uses a fixed die position while molten metal is poured through the designed pouring and gating arrangement — a straightforward operating cycle where the die doesn't need to rotate or tilt.

  • Simple, repeatable operating arrangement
  • Suited to a fixed filling orientation
  • Considered on die size, cooling and ejection needs

GDC Alloy Wheel Machine

A specialized configuration built around the geometry, metal distribution, solidification and dimensional accuracy that alloy wheel casting demands.

  • Built around wheel-specific dimensions
  • Consistent geometry across production runs
  • Part of a complete casting solution, not a standalone unit

Vertical GDC Machine

Uses a vertical die arrangement, with die movement, pouring and ejection configured around vertical operation — useful where component geometry benefits from it.

  • Influences metal flow & feeding behaviour
  • Practical die accessibility for ejection
  • Compact machine footprint

Horizontal GDC Machine

Uses a horizontal die arrangement and mould movement, which can suit certain component geometries and offer convenient access depending on layout.

  • Engineered around your die & production cycle
  • Convenient die access for automation
  • Fits varied floor-space arrangements

Special Customized GDC Machine

Built around the product, die, production cycle, automation system or factory layout when a standard configuration can't efficiently handle the application.

  • Dedicated die arrangements & tilting sequences
  • Automated pouring, ejection & controls
  • Integration with existing production lines

Applications of GDC machines

Gravity Die Casting Machines are used for manufacturing a variety of metal components. Applications depend on the alloy, component geometry, die design, production requirements and casting specifications.

Automotive industry

Selected automotive components and aluminium castings where permanent-mould casting is appropriate.

Engineering components

Industrial machinery and engineering applications needing repeatable geometry and material properties.

Electrical & industrial equipment

Suitable cast components for electrical, industrial and equipment manufacturing applications.

Pump & valve components

Housings, covers and bodies produced using permanent-mould casting, depending on design and alloy.

Alloy wheels

Specialized GDC equipment configured for alloy wheel manufacturing applications.

General aluminium castings

Various aluminium castings compatible with gravity die casting's design and production requirements.

Advantages of Gravity Die Casting

Gravity Die Casting offers several potential advantages when the process is correctly matched to the component.

Reusable metal dies

Unlike sand moulds made for individual casting cycles, GDC uses reusable dies suited to repeated production.

Consistent component geometry

A properly maintained permanent die gives repeatable dimensions across multiple production cycles.

Good surface finish

Metal dies provide a relatively smooth mould surface, improving surface quality over expendable moulding.

Suitable for repeated production

Useful wherever manufacturers require repeated production of the same or similar component.

Flexible machine configurations

Tilting, stationary, vertical, horizontal, alloy wheel and customized configurations adapt to your process.

Reduced manual dependence

Several operations can be mechanized or automated, improving cycle consistency and cutting operator intervention.

How to select the right GDC machine

Selecting the correct Gravity Die Casting Machine starts with understanding the product before selecting the equipment.

Component size
The machine and die must accommodate the required casting dimensions.
Component geometry
Complex shapes may need special cores, slides, tilting or customized die movement.
Alloy
The casting alloy influences pouring temperature, die temperature and cooling design.
Production volume
Higher requirements may justify greater automation and faster, repeatable cycles.
Die configuration
The machine must be compatible with the intended die construction and movement.
Casting orientation
Vertical, horizontal, stationary or tilting operation, chosen to suit filling requirements.
Automation
Manual, semi-automatic or fully automated machine operation, as your process needs.
Factory layout
Machine footprint, operator access and integration with existing equipment.

Reasons foundries in Pune and beyond choose us for GDC machines

Built to your die, not a catalogue

Clamping force, platen and daylight sized to your actual tooling and part.

In-house from steel to dispatch

Frame fabrication, machining, assembly and testing all done at MIDC Bhosari.

Pressure-tested, not assumed

Clamping cylinders and tilt drives are run under load before the machine ships.

Support after delivery

Installation guidance and after-sales service across India and the UAE.

Frequently asked questions about GDC machines

Common questions we hear from foundries evaluating a Gravity Die Casting machine.

What is a GDC Machine?
A GDC Machine is a Gravity Die Casting machine used to produce metal components by pouring molten metal into a reusable metal die, with gravity providing the primary force for filling the mould cavity.
What is the difference between GDC and High Pressure Die Casting?
The main difference is the method used to fill the die. Gravity Die Casting primarily relies on gravity and controlled pouring, while High Pressure Die Casting uses a mechanical injection system to force molten metal into the die at high pressure.
Which metals can be used in GDC?
Gravity Die Casting is commonly associated with suitable non-ferrous alloys, particularly aluminium alloys, although the appropriate alloy depends on the specific process, die material, component and application.
What is a GDC Tilting Machine?
A GDC Tilting Machine is designed to change the orientation of the die during the casting cycle. Controlled tilting can be used to influence the filling sequence and casting process.
What is an Alloy Wheel GDC Machine?
An Alloy Wheel GDC Machine is a specialized Gravity Die Casting machine configuration designed for manufacturing suitable alloy wheel components.
Can GDC Machines be customized?
Yes. GDC equipment can be configured or customized according to component geometry, die requirements, production volume, automation, machine orientation, pouring method, ejection requirements and factory layout.
Which GDC Machine is best for my component?
There is no single GDC machine that is best for every product. The correct configuration depends on the component geometry, alloy, die design, production quantity, casting orientation, automation requirements and manufacturing process. Share your drawing with our engineers and we'll recommend a configuration.

Have a casting drawing ready? Let's size the machine to it.