Plunger Rod Manufacturers have certain market influence and technical advantages in the production field of die-casting plunger rod and related accessories.
Plunger Rod is the core component of pumps, compressors, and medical devices that transmit pressure or fluid, and its performance directly affects the efficiency and life of the equipment.
The main uses of the pressure rod
Pushing the molten metal
During the die casting process, the pressure rod pushes the molten metal out of the injection cylinder through the piston and injects it into the mold cavity.
Ensuring that the metal can completely fill the mold and form the desired shape.
Transfer pressure
The pressure bar is subjected to high pressure in high-speed movement, which ensures that the molten metal can be injected into the mold at sufficient pressure in a short period of time, avoiding defects such as porosity or unfilled areas.
Increased production efficiency
By optimizing the design and lubrication system of the pressure bar, wear can be reduced and service life can be extended.
Thereby improving the efficiency and product quality of die casting production.
LK Technology Group
Market position
The world’s largest die-casting machine manufacturer, with a domestic market share of nearly 60%.
And the die-casting machine was selected as a national “single champion product” in 2021.
Technical capabilities
Took the lead in launching 6000T ultra-large die-casting machines, and cooperated with Tesla to achieve a breakthrough in integrated die-casting technology.
Plunger rod supply mode
Self-produced key accessories: LK provides core accessories including injection rod (plunger rod), injection tube, etc.
Supply chain cooperation: Some non-standard parts are provided through suppliers such as Dongguan Chengda Machinery and Qinze Machinery.
Guangdong Yizumi Precision Machinery
Market position
The second largest brand of domestic die-casting machines, ranking among the top ten manufacturers in the world.
Technical capability
Close to the international level in the field of real-time control injection technology.
Plunger rod supply mode
Self-production of core components: independent processing of important parts such as clamping parts and injection parts.
Outsourced production
Ordinary parts (such as flanges and pistons) are outsourced, but high value-added components such as plunger rods may be developed in-house.
Ningbo Haichen
Haichen provides die-casting plunger rods, plunger sleeves and other products, and the technology is benchmarked against international brands, and there are breakthroughs in the field of real-time control injection.
At the same time, it focuses on small and medium-sized die-casting equipment and has an independent supply chain.
Plunger Rod Manufacturers Supply chain characteristics and trends
Technical barriers
The plunger rod requires cemented carbide surface treatment (such as chrome plating, nitriding).
And it is difficult for small and medium-sized enterprises to break through the material process.
Regional clusters
East China (Ningbo, Suzhou): LK, Yizumi, and Sanji form a technological highland.
South China (Dongguan, Shenzhen): complete accessories support, relying on LK supply chain.
Domestic substitution: high-end plunger rods still rely on imports.
Such as IDRA, but the LK 9000T model has achieved self-production of super-large parts.
Future development direction
Material innovation
Develop a plunger rod made of nano-coated and ceramic composite material to prolong the service life (refer to cemented carbide technology).
Intelligent detection
Combined with IoT, real-time monitoring of plunger rod stress changes to prevent fracture failure.
Ultra-large
With the popularization of integrated die-casting, the plunger rod of models above 6000T will become the focus of technical competition.
