The core advantage of chrome magnesia bricks lies in the precise matching of raw material properties and forming processes. The raw materials, including magnesium oxide and chromium oxide particles, are hard and have poor fluidity. The forming process requires strict control over moisture, pressure, and exhaust - high-quality chrome magnesia bricks demand a porosity of less than 12%, a density of no less than 2.8g/cm³, and a compressive strength at room temperature of ≥90MPa. At the same time, it is essential to ensure that the green body has no micro-cracks, no delamination, and no chipped corners. Otherwise, under the effects of high-temperature erosion and thermal cycling, the brick body is prone to peeling and damage, leading to leakage in the kiln lining and potential equipment damage or safety incidents. As the global steel and cement industries shift towards large-scale, efficient, and green production, the quality requirements for chrome magnesia bricks continue to rise. High density, low porosity, high corrosion resistance, and batch stability have become the hard standards for chrome magnesia bricks to be qualified for factory release.

Compared with traditional forming equipment, the servo screw press, with its core advantages of digital precision pressure control, flexible pressure transmission, and batch stability, is the best choice to solve the forming challenges of chrome magnesia bricks. It can not only completely address the shortcomings of traditional equipment such as uneven pressure application, incomplete exhaust, and easy cracking, but also ensure the consistency of batch production, achieving full density and crack-free green bodies, perfectly meeting the core requirements of chrome magnesia brick forming. It helps chrome magnesia brick enterprises break through quality bottlenecks, expand into high-end markets, and drive the upgrade of refractory industry equipment from traditional mechanical transmission to digital and intelligent systems.

Relying on 45 years of experience in refractory forming equipment research and manufacturing, Zhengzhou Haloong has deeply integrated the third-generation permanent magnet synchronous servo direct drive technology with the semi-dry forming process of chrome magnesia bricks. Combining the core demands of chrome magnesia bricks - hard raw materials, prone to cracking, high density, and high corrosion resistance - it has developed a dedicated servo screw press for chrome magnesia bricks. This press benchmarks against global high-end equipment standards, with "precise pressure control, flexible pressure transmission, and intelligent stable production" as its core, ensuring the quality of chrome magnesia brick forming. It has become the preferred equipment for domestic and international chrome magnesia brick enterprises, and its core performance can rival that of international high-end similar equipment.

It adopts a permanent magnet synchronous servo motor direct drive design, eliminating traditional clutch and gear transmission structures. The transmission chain is short and energy loss is low. It is equipped with Haloong's independently developed intelligent pressure control system, which can precisely preset the pressure energy, speed, and frequency through digital programs. The energy repetition control accuracy is ≤±1%, far exceeding the industry average, achieving "full-area precise uniform pressure application", precisely matching the high hardness and poor fluidity of chrome magnesia brick raw materials. According to the characteristics of chrome magnesia brick forming, it intelligently matches a three-stage forming process: "light pressure slow exhaust - medium pressure uniform material distribution - heavy pressure densification". In the light pressure stage, pressure is applied slowly to completely expel the internal air and excess moisture of the raw materials, avoiding crack formation due to air bubble residue. In the medium pressure stage, pressure is applied uniformly to promote the uniform distribution of magnesium oxide and chromium oxide particles, eliminating density differences that cause uneven corrosion resistance. In the heavy pressure stage, pressure is precisely controlled, and the pressure size is flexibly adjusted according to the specifications, raw material ratios, and shapes of the chrome magnesia bricks (converter lining bricks, ladle bricks, and special-shaped chrome magnesia bricks), achieving full-area densification of the green body (density increase of more than 20% compared to traditional equipment), while ensuring precise dimensions with an error of less than ±0.3mm. It completely eliminates defects such as dimensional deviation, delamination, layer cracking, and chipped corners, with a stable product qualification rate of over 99.6%. The compressive strength is 22% higher than that of products produced by traditional equipment, and the corrosion resistance is significantly enhanced, greatly extending the service life of chrome magnesia bricks.

It breaks through the structural bottom dead center limitation of traditional equipment and adopts a step-by-step forging mode. According to the different specifications, shapes (converter lining bricks, ladle bricks, and special-shaped chrome magnesia bricks), and raw material ratios of chrome magnesia bricks, it can flexibly adjust the slide block stroke, pressure angle, and pressure size, without worrying about uneven pressure application caused by raw material particle deviations or complex brick shapes. Whether it is ordinary-sized chrome-magnesia standard bricks or large-sized special-shaped chrome-magnesia bricks, precise and uniform pressure can be achieved, ensuring consistent density and accurate dimensions throughout the entire body and at the corners and details of the brick, eliminating the risk of cracking due to overpressure or looseness due to underpressure. Moreover, the equipment can flexibly adapt to chrome-magnesia brick raw materials with different compression ratios without frequent adjustments to the equipment structure. Coupled with a rapid mold change system, mold replacement is convenient and efficient, significantly reducing production preparation time. It can meet both small-batch customized production and large-scale mass production needs, helping enterprises expand their chrome-magnesia brick product range and respond to diversified market demands.

 The equipment adopts a fully enclosed static pressure screw, nut, and bearing transmission, forming a stable oil film during operation for protection. Combined with an automatic forced lubrication system, it effectively reduces the wear of transmission components, ensuring continuous and stable pressure transmission without energy loss or pressure drop. This perfectly meets the forming requirements of chrome-magnesia bricks, which are brittle and prone to cracking. Compared with the rigid transmission of traditional equipment, the static pressure transmission of the Haloong servo screw press can achieve flexible pressure transmission, avoiding stress concentration at the corners and special-shaped parts of the chrome-magnesia brick, effectively eliminating the risks of micro-cracks, deformation, and corner loss in the brick body. At the same time, the transmission is stable, and the equipment operation vibration is small, further ensuring the uniformity, consistency, and dimensional accuracy of the chrome-magnesia brick body, eliminating forming risks from the process level. Additionally, the transmission chain is short, the structure is simple, and it is easy to maintain and repair, reducing the later operation and maintenance costs by more than 40% compared to traditional equipment, meeting the needs of large-scale and low-cost production of chrome-magnesia brick enterprises and significantly improving production efficiency.

 Relying on Haloong's 45 years of refractory forming process experience, the servo screw press is equipped with a dedicated chrome-magnesia brick forming parameter database, covering the forming parameters of chrome-magnesia bricks of different ratios, sizes, and shapes. It can intelligently customize forming programs and pressure parameters based on customer needs and the characteristics of raw materials from different origins, eliminating the need for frequent manual adjustments and reducing the impact of human factors on forming accuracy. For the batch production needs of chrome-magnesia bricks, the equipment can achieve one-click calling and batch replication of forming parameters, ensuring consistent density, size, density, and strength for each batch and each product, with a density variation coefficient controlled below 1.0%, perfectly meeting the batch purchasing needs of high-end steel and cement enterprises. At the same time, it is equipped with an intelligent detection and early warning function, which can monitor forming parameters in real time and correct pressure deviations promptly, further ensuring the stability of batch production and solving the industry pain point of large quality fluctuations in batch production by traditional equipment.

 Equipped with the intelligent production management system independently developed by Zhengzhou Haloong, it is equipped with standardized industrial communication interfaces, which can be seamlessly linked with the automatic feeding system, raw material ratio system, and brick body detection equipment for chrome-magnesia bricks, building an intelligent production line for the entire process of chrome-magnesia brick forming, achieving unmanned control from "raw material entry - ratio - pressing - detection - storage", significantly reducing labor input and meeting the industry's need to cope with rising labor costs. It can help enterprises reduce two-thirds of the operators and significantly improve production efficiency. The system can collect data on forming pressure, speed, and size in real time, dynamically adjust the pressing process, promptly correct pressure deviations, ensure uniform pressure, and guarantee the density, dimensional accuracy, and consistency of the chrome-magnesia brick body; it also supports remote monitoring and parameter adjustment, facilitating remote control of production by domestic and foreign customers, real-time detection of forming risks, and further ensuring product quality. In addition, the equipment adopts a "start on demand, sleep for energy saving" mode, saving more than 55% of energy compared to traditional friction presses, helping chrome-magnesia brick enterprises achieve multiple goals of "energy conservation, cost reduction, high quality, and high efficiency", in line with the global trend of green production and injecting impetus into the sustainable development of enterprises.

 The quality of chrome-magnesia bricks directly relates to the safety, efficiency, and service life of high-temperature industrial equipment, and the forming equipment is the core guarantee of quality. As the global steel and cement industries transform towards high-end, green and efficient development, the quality requirements for chrome-magnesia bricks continue to rise. High-performance, long-life and batch-stable chrome-magnesia bricks have become the mainstream demand in the industry, and this has also put forward higher requirements for the precision, intelligence and stability of forming equipment. Zhengzhou Haloong has been deeply engaged in the field of refractory forming equipment for 45 years, always adhering to the concept of "starting from design, excelling in process, emphasizing processing and achieving success in assembly". Relying on technological progress, with strict process regulations, complete testing methods and a perfect management system, it continuously promotes technological innovation of servo screw presses, focuses on the core pain points of chrome-magnesia brick forming, and creates exclusive intelligent solutions.