1. Clamping Force
Locking force, also known as clamping force or clamping force, is the most intuitive indicator in the specifications and models of die-casting machines. It refers to the maximum clamping force that the machine can apply to the mold after clamping to resist the expansion force of the molten metal during injection, usually measured in kilonewtons (kN) or tons (Ton). When selecting, there is a safety formula to refer to: the locking force (F) of the die-casting machine is ≥ (casting projection area x mold pressure)/1000, and it is recommended to reserve a 20% margin to ensure safety.

2. Tie Bar Distance
This refers to the width (horizontal) x height (vertical) of the rectangular space enclosed between four Corinthian columns (large bars), usually measured in millimeters (mm). It determines the maximum outer contour size of the mold that can be installed in the die-casting machine. If the length and width dimensions of the mold exceed this spacing, it cannot be installed on the equipment.

3. Mold Thickness
The thickness of the mold is the adjustable range that accommodates the thickness of the mold, and also refers to the minimum and maximum thickness of the mold that can be installed on the die-casting machine, measured in millimeters (mm). It determines the height and size of the mold that can be accommodated by the die-casting machine. When making a purchase, it is necessary to ensure that the actual thickness of the mold is within this adjustable range.

4. Opening stroke/Platen stroke
The mold opening stroke, also known as the movable plate stroke, is the maximum movement distance of the movable template in the direction of opening and closing the mold, measured in millimeters (mm). It determines the maximum distance that the moving part of the mold can move after the mold is opened, directly affecting the convenience and production pace of removing the casting. The larger the stroke, the easier it is to remove larger or more complex castings.

5. Ejector Force
The pushing force is the maximum thrust that the pushing mechanism can apply when pushing the casting out of the mold, measured in kilonewtons (kN) or tons (Ton). For complex castings with deep cavities, dense reinforcement positions, or easy mold sticking, a larger ejection force is required to prevent difficulty in ejection or casting deformation.

Core indicators that affect process capability
These parameters determine the process of filling and compacting the molten metal, and are key to the internal quality and surface forming of the casting.

6. Injection Force
The injection force is the power source for the injection mechanism to push the injection punch and hydraulic the metal into the mold cavity, measured in kilonewtons (kN) or tons (Ton). Sufficient injection force is the basis for generating the required injection pressure, which is closely related to the injection pressure and the density of the casting.

7. Shot Weight
The injection quantity refers to the maximum weight of molten metal (usually aluminum) that can be injected by a press casting machine in one injection action, usually measured in kilograms (kg). This is an important capability parameter of the die-casting machine, and its value must be greater than the sum of the weight of the casting, the weight of the pouring system, and the weight of the slag collection bag.

8. Locked on Pressure/Intensity Pressure
Casting pressure, also known as boost pressure or casting specific pressure, is the final compaction pressure applied by the injection mechanism to the molten metal after filling, usually measured in megapascals (MPa). It is a key parameter for obtaining dense castings. According to the casting requirements, it can be divided into the following types:

General parts: 30-50 MPa
Bearing capacity: 50-80 MPa
Requirements for air tightness: 80-100 MPa

9. Injection Speed
The injection speed refers to the speed at which the injection punch pushes the molten metal to fill the mold cavity, with the high-speed segment measured in meters per second (m/s). It is one of the soul parameters of die-casting technology, which directly affects the filling form of the molten metal.

Slow injection speed: approximately 0.2-0.3 m/s, designed to smoothly push the molten metal and expel air from the pressure chamber.
Fast injection speed: usually between 2-10 m/s, it is necessary to quickly fill the mold cavity to avoid premature solidification of the molten metal.
The importance of precise control: High end die-casting machines can achieve more precise multi-stage speed control. For example, the equipment can achieve 10 points and 9 stages of speed control from injection to filling completion, which is crucial for optimizing exhaust, avoiding gas entrapment, and incomplete filling.

10. Intensity Build up Time&Injection Acceleration
The pressure building time is usually at the end of the injection, when the metal liquid fills the mold cavity, the time required for the injection pressure to rise from the injection pressure to the casting pressure, measured in milliseconds (ms). It directly reflects the efficiency of the die-casting machine in achieving "boosting and shrinking" of castings, and the shorter the time, the better the shrinking effect. Meanwhile, high-end devices pay more attention to injection acceleration (in grams), which reflects the explosive force of the injection system from rest to high speed. The shorter the build-up time and the greater the acceleration, the stronger the machine performance. For example, mainstream high-performance models can control the build-up time within 30 milliseconds.

Comprehensive evaluation: the dimension of "physical examination" to determine the level of equipment
In addition to the ten core parameters, sometimes the performance level of a die-casting machine can be comprehensively evaluated from the following dimensions:

Reliability: Whether the equipment can maintain stability during long-term, high load operation is related to the continuity of production and maintenance costs.
Precision: refers to the control accuracy and repeatability of various process parameters (such as pressure, speed, temperature) by equipment, which directly determines the consistency of casting quality.
Control and automation level: High performance die-casting machines commonly use PLC and microcomputer control systems, which can achieve electrical proportional control of pressure and flow, and provide multi-stage pressure and speed control functions. For example, mainstream brands such as B ü hler's Ecoline S series, Shibaura from Japan, and Haitian and Lijin from China are constantly optimizing these aspects. This is like the engine performance and driving experience of a car, although difficult to fully summarize with a single parameter, it profoundly affects the quality, efficiency, and cost of die-casting production.