Tank capacity for die casting machines is the volume of hydraulic oil that can be held in the die casting machine tank, usually in liters (L).

The die casting machine tank capacity is directly related to machine lubrication, cooling, stability, energy efficiency. And with productivity, environmental impact, cost-effectiveness, process and quality control.

Selection of die-casting machine tank capacity should base on the specific model of the machine. Also with working conditions, hydraulic system requirements, and safety factors such as comprehensive consideration. To ensure that the tank capacity not only meets the work requirements but also has sufficient safety margins.

• Impact of Tank Capacity on Die Casting Machine Performance
• How to choose the die casting machine tank capacity
• Process parameters
• Haichen die casting machine tank capacity
• Daily maintenance and key die casting machine tank accessories
• HAICHEN’s Professionalism in Tank Capacity Planning

Impact of Tank Capacity on Die Casting Machine Performance

• Lubrication and cooling
• System pressure and stability
• Continuity of operation
• Energy efficiency
• Die casting machine specifications

Lubrication and cooling

The oil in the tank is responsible for lubricating and cooling the moving parts of the die casting machine. Adequate oil volume ensures stable oil temperature during operation of the system and avoids overheating of components, thus reducing wear and prolonging component life.

System pressure and stability

the tank capacity needs to be large enough to maintain stable pressure in the hydraulic system. When the hydraulic oil circulates in the system, the larger tank can reduce the change of oil temperature and keep the system pressure constant, so as to ensure the stability of the die casting process .

Continuity of operation

A larger tank reduces the number of refuelings and improves the continuity of production. During long production runs, this reduces downtime due to refueling, increasing productivity.

Energy efficiency

Fuel tank capacity affects energy efficiency. A larger fuel tank maintains fuel temperature better and reduces energy consumption, as fluctuations in fuel temperature can lead to a decrease in energy efficiency.

• Environmental impact: Energy consumption and environmental impact can be reduced by maintaining the oil in the optimal temperature range.
• Process Parameter Control: Tank capacity is critical to maintaining process parameters in the die casting process, such as fill rate, pressure and cycle time, which directly affect product quality.
• Quality control: Oil tank capacity is also related to quality control during the die casting process. For example, by monitoring and adjusting the oil temperature in real time, product defects can be reduced and product quality can be improved .

Die casting machine specifications

Different models of die casting machine oil tank capacity is different. Different machine brand manufacturers have different design drawing. For example, some die casting machine oil tank capacity may be 3600 liter.

How to choose the die casting machine tank capacity

• Tonnage of die casting machine
• Hydraulic System Requirements
• Oil quality

Tonnage of die casting machine

The larger the tonnage of the die casting machine, the more oil required for its hydraulic system, so the tank capacity needs to be increased accordingly. For example, a larger die-casting machine may require a larger tank to ensure an adequate supply of hydraulic oil.

Hydraulic System Requirements

Hydraulic systems require sufficient oil for lubrication and cooling, and tank capacity must ensure that the oil can be circulated and cooled efficiently throughout the production cycle.

Oil quality

Tank capacity also relates to the quality of the oil. A larger tank will better maintain the cleanliness and temperature of the oil, thus extending the life of the oil and reducing maintenance costs.

Process parameters

• Neglecting the actual production demand
• Oil tank capacity is too small
• Excessive Fuel Tank Capacity
• Oil circulation and cooling are not considered
• No room for expansion

Process parameters in the die casting process, such as filling speed, pressure and cycle time. They are all directly affect product quality. The tank capacity needs to be able to support the stable operation of these parameters.

The following are some common misconceptions that should be avoided when choosing the capacity of a die casting machine tank:

Neglecting the actual production demand

When choosing the tank capacity, not only the tonnage of the die casting machine should be considered, but also the actual production demand, including the production volume, die size and complexity and other factors .

Oil tank capacity is too small

Too small a tank capacity may lead to high oil temperature, oil oxidation and sludge generation, affecting the performance and life of the hydraulic system.

Excessive Fuel Tank Capacity

Excessive fuel tank capacity may result in unnecessary cost increases and wasted space.

Oil circulation and cooling are not considered

The tank capacity needs to ensure that the hydraulic oil has enough circulation and cooling space to maintain a stable oil temperature and prevent the oil from overheating.

No room for expansion

When selecting tank capacity, a certain amount of room for expansion should be reserved to accommodate possible future production expansion or process changes.

Haichen die casting machine tank capacity

Haichen is one Chinese die casting machine manufacturer. We produce durable and high precision cold chamber and hot chamber die casting machines with more than 10years production experience.

Below is the parameter table of our Haichen brand cold chamber die casting machines. And you can check and find other machine tonnage in our full range of Haichen catalog.

Hot chamber die casting machine and cold chamber die casting machine, oil tank also different.

You can check the tank capacity of each of our die casting machines against the table, and you can also select a die casting machine with different tank capacity according to your product design requirements. If you need, please leave us a message, we will be glad to reply you quickly.

Daily maintenance and key die casting machine tank accessories

Once the machine goes into production, proper maintenance is the key to long tank and hydraulic system life. The various accessories on the tank, such as level gauges, air filters, and temperature control systems, directly affect oil cleanliness and thermal stability.

• Oil level monitoring and oil change intervals
• Air breather and contamination prevention
• Auxiliary tank and integrated cooling design

Oil level monitoring and oil change intervals

Tanks usually have a float level switch or a level gauge to show oil quantity in real time. When the oil level drops to the set low limit and triggers the sensor, the machine control system automatically stops the pump and sounds an alarm.

• This mechanism prevents pump seizure or component damage due to too little oil. Die casting machine tank capacity planning must incorporate low-level alarm margins that anticipate real-world leakage risks.The normal oil change interval is one to two years.
• When changing oil or adding oil, fill to the upper mark on the level gauge, but do not fill beyond that. Leave at least 10% air space at the top for thermal expansion and bubble release.
• If you ignore oil testing for a long time, water and particle contamination will significantly speed up wear of hydraulic parts. It is a good practice to sample and test the oil every 2,000 working hours.

Air breather and contamination prevention

To keep dust and moisture out of the tank, install an air breather with a filter element on the tank cover.

• The breather keeps the air pressure above the oil level equal to atmospheric pressure.
• It also blocks solid particles from entering. For machines working in high humidity environments, if the breather seal is poor or the breather has no drying function, moist air can get into the tank and form condensation water.
• This speeds up oxidation and corrosion. For open tanks, choose a breather with a high-efficiency filter element. Replace the filter element regularly following the instructions.

Auxiliary tank and integrated cooling design

For some large or vertical die casting machines where the injection system is located far from the main hydraulic tank, an auxiliary tank is needed.

• Connect the auxiliary tank to the main tank with minimal flow resistance. The auxiliary tank volume should be at least 10% of the main tank capacity.
• It should have its own oil pump, level gauge, and low level alarm. For high duty applications, the manufacturer can also install a heat exchanger in the oil return area of the tank or add an external circulation cooling loop.
• Forced air cooling or water cooling can make up for the limits of natural oil cooling. With such cooling in place, the tank can be smaller while still keeping oil temperature stable.
• When planning a production line, buyers should check whether the tank has enough cooling connections and whether the cooling power matches the machine’s heat generation.

HAICHEN’s Professionalism in Tank Capacity Planning

HAICHEN Machinery not only pays attention to tank capacity parameters but is also committed to improving the overall efficiency of the metal storage, holding, and feeding units through systematic design, forming one of the core advantages of its die casting machines.

HAICHEN engineers provide scientific capacity selection recommendations based on the customer’s product mix, production capacity plan, and alloy type. This helps customers avoid production issues from insufficient capacity or wasted investment and operating costs from excessive capacity.

Technical Advantages of HAICHEN Holding Furnaces

(For cold chamber machines) The holding furnaces supplied or recommended by HAICHEN utilize efficient heating elements and intelligent temperature control systems, achieving excellent temperature uniformity within the furnace (e.g., ±5°C). Their unique lining materials and structural design ensure high thermal efficiency and low metal oxidation loss.

Exceptional Performance of HAICHEN Hot Chamber Machine Goosenecks

(For hot chamber machines) HAICHEN manufactures goosenecks from special alloy steel, offering excellent resistance to zinc corrosion and thermal fatigue. Their capacity design is precisely matched with the injection system, ensuring accuracy and consistency for every shot cycle and extending the life of key components.

Integrated Feeding Solutions Synergized with the Machine

HAICHEN can provide a complete molten metal treatment solution, from automatic melting and precise dosing to degassing and dross removal within the furnace. The control system of HAICHEN die casting machines can interface with these peripherals, enabling full process stable management of metal quality, temperature, and supply rhythm, ensuring casting quality from the source.

Comprehensive Benefits for Customers

Choosing HAICHEN die casting machines and their supporting material storage system, customers gain a more stable process starting point, lower comprehensive energy consumption (energy and metal loss), higher equipment utilization rates, and better casting quality consistency. This significantly reduces long-term production costs and enhances competitiveness.