As core protective components for high-temperature industries such as metallurgy, building materials and petrochemical engineering, special-shaped refractory materials have long posed a technical bottleneck for the industry in terms of forming processes due to their complex structures, diverse dimensions and stringent working condition adaptability requirements. Ranging from curved furnace lining bricks and trough-type burner bricks to honeycomb checker bricks and assembled special-shaped components, the production of such refractories demands both high density and compactness, while avoiding defects like dimensional deviations and internal cracks – placing extremely high demands on the press’s precise control, structural stability and process adaptability. With over 40 years of deep cultivation in the forging and pressing equipment field, Zhengzhou Haloong Machinery Co., Ltd. leverages the technical accumulation of three generations of servo numerical control technology to build specialized presses for special-shaped refractory materials. Boasting eight core advantages, the presses address the industry’s pain points and have become the preferred equipment for the production of high-end special-shaped refractories.

Precise Pressure Control + Flexible Processes, Solving the Uneven Forming Problem of Special-shaped Components

Due to the asymmetric structures of special-shaped refractory materials, traditional presses are prone to uneven stress and insufficient air exhaust, leading to product cracking and excessive density deviation. The HLDS Series Special-shaped Refractory Press by Zhengzhou Haloong is equipped with permanent magnet synchronous servo motor direct drive technology, achieving zero redundant loss in the transmission chain and a rotational speed error controlled within 0.0001 r/min. It enables digital presetting of striking times, force and speed, and realizes free switching between high and low speeds in a single stroke, perfectly simulating the flexible manual process of "light pressing for air exhaust first, heavy striking for forming later". Combined with a 23-bit high-precision encoder and a closed-loop control system, the energy fluctuation is ≤±0.5% and the slide stroke accuracy reaches ±0.05mm. The press can precisely distribute pressure for different special-shaped structures and fully expel air between materials, increasing the product density uniformity by more than 30% and stably controlling the apparent porosity below 8%, thus fundamentally eliminating internal defects such as looseness and microcracks.

Fully Enclosed Hydrostatic Structure, Adapting to Long-term Stable Operation in Harsh Working Conditions

Refractory production involves heavy dust, and the forming of special-shaped components requires frequent mold adjustments. Core components of traditional equipment are vulnerable to dust erosion, resulting in rapid precision attenuation and high maintenance costs. Zhengzhou Haloong has adopted a fully enclosed hydrostatic lubrication system in a targeted manner, placing core components such as screws, nuts and thrust bearings in a thin oil-immersed circulating lubrication environment. Matched with a fully automatic forced lubricating oil station for intelligent filtration and high-pressure supply, the system completely isolates the erosion of dust such as magnesia and corundum powder, extending the service life of key components to more than twice that of traditional equipment. Meanwhile, the press features a split-type prestressed fuselage structure with high rigidity and excellent anti-unloading capacity, paired with an X-shaped guide rail and a cylindrical guide design for the slide block. This effectively avoids dimensional deviation defects such as "tilted heads and caps" in the forming of special-shaped components, ensures trouble-free 24-hour continuous high-load operation, and significantly reduces unplanned shutdown losses.

High Efficiency & Energy Saving + Intelligent Management and Control, Boosting Green and Intelligent Transformation

Guided by the dual carbon goals, energy conservation, consumption reduction and digital upgrading have become core demands of refractory enterprises. Zhengzhou Haloong’s special-shaped refractory press adopts an on-demand start mode for the servo motor, which shuts down with zero energy consumption during feeding, demolding and mold cleaning. Compared with traditional friction presses, its comprehensive energy saving rate exceeds 60%, a single unit can save tens of thousands of kilowatt-hours of electricity annually, and the low starting current causes no impact on the power grid. The press is equipped with a PLC programmable control system and a touch screen human-machine interface, supporting one-click operation without the need for skilled technicians. It can collect key parameters such as striking force, temperature and forming cycle in real time, realize full-process production data traceability and remote monitoring, and support seamless connection with automated production lines. A multi-layer safety protection design ensures worry-free production: the zero-speed torque braking of the servo motor, mechanical braking and infrared safety light curtain form a triple protection, and the bottom dead center-free design completely eliminates press jamming.

Facing the trend of high-end and refined development in the special-shaped refractory material industry, Zhengzhou Haloong will continue to deepen the integrated innovation of servo control and refractory forming processes, and iterate products focusing on the forming demands of complex special-shaped components and high-performance refractories. Backed by 40 years of technical accumulation, Zhengzhou Haloong is committed to customizing tailor-made forming solutions for special-shaped components for refractory enterprises, solving production pain points and enhancing core competitiveness. We are ready to work hand in hand with the industry to build a new ecosystem for high-end refractory material manufacturing and win the new future of industrial upgrading together!