Hydraulic trimming press machine is a die casting machine auxiliary equipment. It mainly uses to remove excess metal on flash, gate, overflow and parting line on die casting parts.
Hydraulic trimming press is an indispensable equipment in the die-casting process. It realizes efficient finishing of die-casting parts through high-tonnage hydraulic system and precision mold. Its design integrates automation, safety and environmental protection concepts. It is widely used in the fields of automobile, aerospace, etc. to meet the high-precision requirements of complex workpieces. The diverse models and customized solutions provided by different manufacturers have further promoted the popularization and innovation of this technology.
This machine usually equippes with hydraulic cylinders that can provide strong pressure and are suitable for different types of molds. It’s always mounts on mechanical or hydraulic presses. Because it requires low press so the bed area to tonnage ratio is relatively large.

Core functions and effects
Hydraulic Trimming Press is a key equipment used to remove burrs, flash and excess material from castings in the die-casting process. Its core function is to apply high-tonnage pressure through the hydraulic system and cooperate with special molds to complete the finishing of die-castings.
Removing burrs and excess material
The hydraulic trimming press drives the die through the hydraulic cylinder to apply pressure to the die casting, accurately cutting the flash, runners and sprue, ensuring that the product surface is smooth and meets the dimensional tolerance, and adapting to the processing requirements of complex geometric shapes.
Automation and synchronization
Modern hydraulic trimming presses are usually linked with die casting machines to realize automated trimming processes.
In the die casting automated production line, it can be used in conjunction with a robot system. Thus, it can improve operational flexibility and efficiency. This type of equipment plays an important role in modern manufacturing. Especially in production environments, it can improve high precision and efficiency.

Structure and technical features
Four-column structure
Most hydraulic trimming presses adopt a four-column frame design (such as a four-column hydraulic press), which provides high rigidity and stability and is suitable for the processing of heavy die castings. For example, the press tonnage range is 10-300 tons, equipped with self-lubricating bronze bushings with long bearing lengths to effectively resist eccentric loads.
Hydraulic system and control
The hydraulic system uses hydraulic cylinders to achieve up and down movement, providing high precision and adjustable pressure. For example, the 20-ton press is equipped with an Allen Bradley PLC control system that supports remote diagnosis and touch screen operation. In addition, some equipment uses central hydraulic ejection (hyd ejection) to reduce manual intervention.
Safety and environmental protection design
The equipment is usually equipped with safety devices such as two-hand control and light curtains to prevent operational risks. At the same time, the trimmed waste can be recycled to the furnace for reuse through bottom cylinder ejection or conveyor belts to reduce material waste.

Application scenarios and industry needs
This machine is very common. The main function is to increase production efficiency by increasing the force. At the same, use hydraulic trimming press machine to maintain maximum productivity.
Automobile and aerospace
Hydraulic trimming presses are widely used in the production of automotive structural parts (such as engine housings, wheels) and aerospace parts (such as turbine blades) because they can handle complex castings with high precision and lightweight requirements.
Customization and modularity
Equipment parameters (such as tonnage, stroke, bed size) can be customized according to customer needs.
Environmental protection and sustainability
The waste generated during the trimming process can be reused through the recycling system, and some equipment (such as ABK’s SP series) is even equipped with a water immersion cooling tank to directly handle large castings.
Except removing flash and overflow from die casting machine, they can also be used to cut precise cutouts in body parts. They are also capable of performing precise punching operations. Such as small holes for wiring harnesses and interior trim installations.
Collaboration with other equipment
Automation integration
Hydraulic trimming presses are often linked with robots (such as KUKA, Fanuc), conveyor belts and furnaces to achieve full process automation from trimming to scrap recycling.
Auxiliary equipment
Some presses are equipped with a compressed air purge system (triggered by a foot switch) to clean chips.

Technical advantages and challenges
Advantages
high precision, high efficiency, strong adaptability, and can significantly improve production cycle (such as ABK’s presses achieve short cycle production through automatic mold change).
Challenges
Trimming of large die castings (such as mega-castings) requires a balance between tonnage and precision, while considering mold replacement and maintenance costs.
Haichen die casting machine
Haichen is one Chinese die casting machine for more than 10years. We produce both high pressure cold chamber die casting machine and hot chamber die casting machine.They have durable and highly precise features. Haichen also produce die casting machine auxiliary equipment. Such as conveyor, vacuum machine, industrial robot, sprayer and so on.
Hydraulic trimming press machine is an indispensable part of die casting production. It ensures the quality and production efficiency of die castings by providing strong pressure and precise operation.