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Countdown l Chongqing Banan 1215 limestone production line is coming soon
How to build a perfect production line for broken stone and sand? Which crusher production plant in Chongqing is reliable? Longjian Group, as the leading enterprise in Chongqing's mining machinery crushing industry, is willing to serve you wholeheartedly and tailor-made scientific and reasonable solutions.
Recently, our Longjian Group Chongqing Banan 1215 limestone production line is in the final commissioning phase, and the official commissioning has entered the countdown. After the production line is put into production, it is a new environmental protection sand and gravel production line with an annual output of 1,000 tons.
On-site debugging pictures:

It is worth noting that, in order to actively respond to the national ecological civilization construction policy, our Longjian Group designed the sand and gravel production line strictly in accordance with the requirements of factoryization, environmental protection, and standardization, taking into account the diversified needs of customers. "Green mineization" achieves zero emissions and zero pollution, and solidifies the waste materials after crushing.
When designing the production line plan, Longjian Group adheres to the concept and purpose of "large output, high efficiency, low energy consumption, reasonable layout, and environmental protection". With the unity and hard work of all project personnel, the foundation has now been completed to a high standard. Construction, Longjian Group won the affirmation and praise of customers.
Here, Longjian Group wished Chongqing Banan 1215 limestone production line to start in advance! Rich money! At the same time, friends from all over the country who have invested in the sand and gravel industry are also welcome to visit and guide. My Longjian Group has been focusing on mining machinery and equipment for nearly 30 years. It is mainly engaged in fixed crusher series, mobile crushing station, environmental protection and supporting equipment. Customers tailor-made solutions for broken stone and sand production lines.
For more details, please pay attention to the official website of Longjian Group: www.longjiangroup.cn. National Service Hotline: 400-023-0808.
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SAMYHI Corporate Profile 2026(PDF Download)Learn more >
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Wisdom Lights Up Beijing, Innovation Leads Mining Machinery Chongqing Sanming Heavy Industry Debuts at CIME2026, Empowering a New Era of Mining Through Technological InnovationLearn more >
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Only 4 days to go! Sanming Heavy Industry is set to make a grand appearance at the 11th China International Mining Exhibition. See you in Beijing!
A Grand Mining Event is About to Kick Off! The 11th China International Mining Exhibition (CIME) will be grandly held at China International Exhibition Center (Shunyi Hall), Beijing from June 10 to 12, 2026.
This time, Sanming Heavy Industry will arrive in full force with eco-friendly intelligent mine solutions and flagship equipment. We look forward to welcoming you at Booth E1!Solid Strength Creates Extraordinary Excellence
Technical Excellence Powers Enterprise Development, Resolving Industry Pain Points
We tackle the tough challenge of sand production for gravel and crushed stone head-on. Our self-developed VCX ultra-fine sand maker has been listed in the Catalogue of Chongqing’s First Set of Major Technical Equipment. Adopting a five-stage crushing chamber design, it realizes "more crushing, less grinding", boosting sand yield by over 70% and cutting energy consumption by 50%, effectively improving product quality and lowering costs for clients.
Intelligence, High Efficiency & Eco-friendliness
Upholding the philosophy of "Intelligent, Efficient, Energy-saving and Environment-friendly", we deliver one-stop full-industry-chain solutions covering crushing, screening and intelligent control. Backed by dozens of national patents and intelligent digital production workshops, Sanming Heavy Industry guarantees high precision and strong stability for every piece of delivered equipment, supporting mining enterprises in green transformation and upgrading.
Customized Mine Solutions & Value-added Services
Facing a sluggish market, we help you break through bottlenecks. As an industry pioneer, Sanming Heavy Industry launched the exclusive "One-Yuan Plus" service system. We tailor personalized "one mine, one strategy" solutions based on your ore properties and working conditions, striving to be your most trusted mining service expert.
Exhibition Info
Exhibition Dates: June 10–12, 2026 Venue: China International Exhibition Center (Shunyi Hall), Beijing Sanming Heavy Industry Booth: Stand A52, Hall E1 See you in Beijing!
全国统一服务热线:400-023-0808
TEL:023-58536666 / 15330481597
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"Peak Empowerment · Smart Elevating the Plateau" — Chongqing Sanming Heavy Industry attends the 2026 Tibet Linzhi Engineering Construction Expo.
Snow-Covered Forest Sea Welcomes Grand Event; Rugged Equipment Builds the Plateau. From May 28 to 30, 2026, the 2026 China Engineering Construction (Linzhi) Expo, themed "Peak Convergence · Equipment Driving · Boosting Plateau Century Projects," was grandly held in Linzhi, Tibet. Chongqing Sanming Heavy Industry Co., Ltd. (abbreviated as "Sanming Heavy Industry") participated in this grand event, focusing on extreme high-altitude and plateau conditions. The company brought customized crushing production lines and plateau-adapted solutions to the expo. Leveraging 30 years of technical expertise in mining crushing, Sanming Heavy Industry addresses key challenges such as plateau infrastructure, mining operations, and high-standard aggregate production, fully supporting the high-quality construction of super projects and green mines in the Tibet region.
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Plateau Focus. Custom Solutions.To address the actual working conditions in Tibet—such as high altitude, low temperature, oxygen deficiency, complex geology, abundant hard materials, and limited construction space—Sanming Heavy Industry showcased its main equipment models specifically adapted for plateau operations. These include the PEW deep-cavity jaw crusher, HPT multi-cylinder cone crusher, FPB compound spring cone crusher, and ULS vertical shaft impact crusher, forming a complete crushing system covering the entire process from primary crushing to medium-fine crushing and sand shaping.
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Additionally, the equipment has undergone targeted optimizations for plateau environments, featuring cold-resistant and durable performance, stable operation, and controllable energy consumption. It is suitable for processing hard materials such as basalt and limestone, and is widely used in projects including water conservancy and hydropower, mining, and high-standard manufactured aggregates. Also showcased was the plateau-modularized production line, which features a high degree of integration, low reliance on civil construction, quick assembly and disassembly, and flexible relocation—effectively adapting to the characteristics of dispersed construction sites and multi-point operations on the plateau, thereby significantly improving construction efficiency and reducing overall construction costs.Deepening Presence in Snowy Plateau Markets, Empowering New Infrastructure on the Highlands
Leveraging the strategic advantages of its headquarters in Chongqing and regional service centers in Xinjiang and Tibet, Sanming Heavy Industry has long been deeply engaged in the plateau markets of Southwest China. Focusing on technological iteration tailored to extreme cold and high-altitude conditions, the company provides one-stop EPC turnkey services covering surveying, design, customization, installation, and operation & maintenance for regional projects.Learn more >