With over 30 years of intensive dedication to mining equipment, Chongqing Sanming Heavy Industry has served dozens of high-speed railway, expressway, road & bridge, water conservancy and hydropower projects. The company has supported construction of local aggregate processing and tunnel muck resource utilization for numerous key transportation projects including Yuwan High‑Speed Railway, Chengdawan High‑Speed Railway, Yukun High‑Speed Railway, Yifu High‑Speed Railway and Qian‑Gui Railway. It consistently delivers integrated high-standard aggregate complete-set solutions for project engineering departments, featuring qualified quality, cost-effective operation & maintenance and stable continuous production.

As the sand and aggregate supply base for the G7611 Xichang-Xianggelila Expressway, this full-process EPC production line with a capacity of 500 tons per hour was delivered as an integrated turnkey project by Chongqing Sanming Heavy Industry. Customized complete processes are developed for two raw materials: limestone ore and expressway tunnel muck. Adopting an intensive modular layout, the plant effectively reduces land occupation and enables low-energy, eco-friendly and continuous stable production. The whole line produces high-standard premium aggregates, delivering a stable raw material supply for bridges, super-long tunnels and subgrade main works along the entire expressway project.

The complete production line adopts the industry benchmark three-stage short-process energy-saving crushing technology. All equipment across the whole line operates in coordinated matching, cutting power consumption per unit capacity from the source. It addresses the pain points of mountain projects, including limited site space and complex raw material working conditions.

1.Primary Crushing Unit: PEW Deep Chamber Jaw Crusher Equipped with a deep crushing chamber enabling dead-zone-free operation, it accepts large-sized tunnel muck and raw limestone thanks to its wide feed opening. Featuring a large reduction ratio and low risk of material blockage, its heavy-duty wear-resistant structure accommodates long-term high-intensity continuous production.

2.Pre-mounted Desliming Pre-screening Module: YKR Circular Vibrating Screen It removes muddy impurities in advance to improve the cleanliness of finished aggregates at the front end and significantly reduce the load on the downstream washing system.

3.Intermediate Silo Installed Between Jaw Crusher and Impact Crusher It balances fluctuations in incoming material, avoids no-load energy loss of equipment, and ensures sustained stable production capacity of the whole line.

4.Secondary Crushing & Shaping Unit: VF New-type Impact Crusher Adopting VF new-type impact crusher for secondary crushing, it features three-chamber four-stage layered crushing, which drastically reduces flaky and elongated particles. The machine performs crushing and aggregate shaping simultaneously, fully complying with material specifications for high-grade concrete used in expressway projects.

5.Fine Crushing & Sand Making Unit: VCX Ultra-fine Sand Maker Equipped with VCX ultra-fine sand maker, it addresses the bottleneck in producing high-quality manufactured sand of 3–10 mm. The equipment cuts energy consumption and delivers finished sand with rounded particle shape and continuous, stable gradation.

6.Grading Screening: DYS & YKR Series Vibrating Screens Fitted with DYS and YKR series vibrating screens featuring high-excitation screening structure, the system delivers high grading accuracy. It can produce multiple specifications of standardized finished aggregates simultaneously to satisfy differentiated material requirements for bridges and tunnels.

The production line is equipped with a fully automatic washing and refining unit to thoroughly remove mud and powder on aggregate surfaces and guarantee qualified cleanliness of finished products. Meanwhile, an integrated closed-loop wastewater treatment system consisting of sedimentation tanks and filter presses is constructed. The sand washing water is recycled for reuse, while sludge is dried for resource utilization of solid waste, fulfilling the requirements for green mines and ecological infrastructure construction in plateau regions.

Installation of core equipment for crushing, screening, feeding and conveying at the project has been largely completed. Construction of the intelligent central control system and fully enclosed steel structure workshop is steadily underway. Supporting works for the intelligent central control management system and enclosed steel plant are being carried out in an orderly manner. Upon full commissioning, the project will continuously supply high-standard premium aggregates for key works of the Xichang-Xianggelila Expressway and facilitate the strategic transportation corridor connecting Sichuan, Yunnan and Guizhou. Relying on integrated overall solutions for complete mining equipment, Chongqing Sanming Heavy Industry empowers the upgrading of western infrastructure with robust intelligent manufacturing, and helps foster a new development landscape for western China’s opening-up in the new era.

From July 16 to 18, the 2026 Xinjiang International Mining & Equipment Expo grandly opens at Urumqi International Convention & Exhibition Center. Rooted in the strategic hub of Northwest China and covering the Central Asian market, this exhibition centers on green mine development, mineral resource exploitation and supporting transportation infrastructure. It serves as an extremely influential platform for communication and cooperation on mining equipment across the region.

With over 30 years of dedicated experience in crushing and sand-making equipment, Sanming Heavy Industry (Chongqing) specializes in complete mining equipment and turnkey EPC overall solutions. Rooted in Southwest China and deeply cultivating the Northwest market, our equipment and processes are highly compatible with high-altitude, frigid and complex mountain working conditions.

Our enterprise will showcase green and intelligent complete crushing & sand-making systems at Booth 318, Hall 11. We sincerely invite general construction contractors, mining enterprises and project managers to visit us for exchanges and business negotiations.

Drawing on extensive experience serving key national projects including expressways, high-speed railways, water conservancy and hydropower works nationwide, our company has maturely adopted the low-energy three-stage crushing process to realize resource recycling of various raw materials such as limestone, basalt, river pebbles and tunnel muck.

We can customize intelligent production lines with hourly output ranging from 100 to 3,000 tons as required. The finished aggregates feature stable gradation and excellent particle shape, which effectively cuts energy consumption and overall operating costs, fully meeting the material standards for high-grade national infrastructure projects.

To address the practical operating conditions of mining areas in Xinjiang and Central Asia, such as remote locations, difficult maintenance and long transportation distances, the company has established a localized technical service system. We deliver one-stop full-process services covering site survey, scheme design, equipment installation, commissioning and handover, as well as lifelong maintenance, to fully guarantee the safe and stable commissioning of all projects.

In the current context of accelerated infrastructure construction in western China, the development of road networks and key projects in Xinjiang and Xizang is in full swing, driving steady growth in demand for high-quality manufactured sand and aggregates. Sanming Heavy Industry (Chongqing) consistently empowers green mine construction with eco-friendly and intelligent equipment, and facilitates high-quality development of western infrastructure through standardized complete-set solutions.

During the exhibition, our professional technical team will provide one-on-one dedicated consultation at Booth 318, Hall 11. We offer free customized exclusive production line schemes tailored to on-site working conditions, alongside special cooperation policies exclusively available for the expo. We sincerely welcome industry peers to visit our booth for inspection and business discussions, to jointly forge a new landscape of infrastructure and mining development in Northwest China.