DENISON hydraulic pump continuous casting machine application

DENISON hydraulic pumps stand as a reliable and high-performance core component in the hydraulic systems of continuous casting machines, a key equipment in the steelmaking process that converts molten steel into solid billets, blooms or slabs with continuous forming. Tailored to the harsh and demanding operational characteristics of continuous casting production, DENISON hydraulic pumps deliver stable hydraulic power to drive all critical motion mechanisms of the casting machine, ensuring the precision, efficiency and safety of the entire continuous casting process.

Continuous casting machines operate in extreme industrial environments—exposed to high temperatures from molten steel, heavy vibration during production, dust and metal particle contamination, and require 24/7 continuous operation with minimal downtime. DENISON hydraulic pumps are engineered to address these challenges with robust structural design and premium material selection: their high-strength pump bodies and precision-machined internal components resist wear, corrosion and vibration, maintaining stable performance even under long-term high-load working conditions; the advanced sealing technology effectively prevents the intrusion of external contaminants and the leakage of hydraulic oil, ensuring the cleanliness and reliability of the hydraulic system, and reducing the risk of unexpected shutdowns caused by pump failure.

In terms of functional application, DENISON hydraulic pumps provide precise and adjustable hydraulic power for all core units of the continuous casting machine, covering every key link from molten steel pouring to billet cutting:

1. Mold Oscillation System: The pump drives the precise reciprocating oscillation of the crystallizer, a critical step to prevent molten steel from sticking to the mold wall and ensure the smooth formation of the initial solidified shell of the billet. DENISON pumps’ excellent flow and pressure control accuracy ensures the stability of the oscillation frequency and amplitude, improving the surface quality of the cast billet and reducing defects such as surface cracks.
2. Segment Pinch Roll & Straightener System: It supplies stable hydraulic power to the pinch rolls and straighteners in each segment of the casting machine, realizing the steady traction and straightening of the hot cast billet. The high torque and pressure output capacity of DENISON pumps adapts to the different traction forces required for cast billets of various specifications, ensuring the continuous and smooth movement of the billet without deformation or jamming.
3. Secondary Cooling Zone Control: The pump drives the hydraulic control valves of the secondary cooling spray system, adjusting the spray flow and pressure according to the casting speed and steel grade, realizing precise and uniform cooling of the cast billet, which is essential for controlling the internal structure of the steel and reducing internal defects such as shrinkage cavities and porosity.
4. Dummy Bar Handling & Billet Cutting System: It powers the hydraulic cylinders for the storage, feeding and retraction of the dummy bar (the guide bar for initial casting), as well as the hydraulic shears or torches for billet cutting. DENISON pumps’ fast response speed ensures the quick and accurate action of these mechanisms, matching the casting rhythm and improving the production efficiency of the continuous casting line.
5. Emergency Hydraulic System: As a key component of the emergency power supply system of the continuous casting machine, DENISON pumps can quickly provide hydraulic power in case of sudden power failure or equipment abnormality, driving the emergency lifting of the tundish, the closing of the stopper rod and other emergency actions, preventing molten steel leakage and major safety accidents, and protecting the equipment and personnel safety.

Beyond the core performance and functional adaptation, DENISON hydraulic pumps also feature excellent energy efficiency and maintainability, which bring significant economic benefits to steel enterprises. The advanced hydraulic design reduces internal flow loss of the pump, improving the energy conversion efficiency, lowering the power consumption of the hydraulic system and reducing the production energy cost; the modular design and standardized spare parts make the daily maintenance, inspection and replacement of the pump more convenient and fast, shortening the maintenance time and improving the overall operational rate of the continuous casting production line.

Moreover, DENISON offers customized hydraulic pump solutions for continuous casting machines of different specifications (slab, bloom, billet casting machines) and production requirements (conventional casting speed, high-speed casting). Combined with professional technical support and after-sales service, it can optimize the pump model selection, system matching and on-site debugging according to the actual production conditions of steel plants, ensuring that the hydraulic pump system is perfectly integrated with the continuous casting machine, and maximizing the production efficiency and product quality of the continuous casting line.

In summary, DENISON hydraulic pumps have become the preferred choice for the hydraulic systems of continuous casting machines in the steel industry due to their high reliability, precise control, strong environmental adaptability and excellent energy efficiency. By providing stable and efficient hydraulic power support, they play an irreplaceable role in promoting the automation, intelligence and high-efficiency development of the steel continuous casting process, helping steel enterprises reduce production costs, improve product quality and enhance the overall competitiveness of production.