Download:SAMYHI Corporate Profile.pdf
National Search-Recruit elite mechanical engineers!
who are we?
——About Us——
Chongqing Longjian Group has been making progress for the past 30 years.
Integrating R & D, production, sales and service
National high-tech enterprise.
Since the planned launch in 2019,
Talented people from all corners of the world.
It is urgent to issue an engineer elite recruitment order!
As long as you are talented, just be bold!
What for you?
——For What——
Choose a new life,
Only for better self.
High salary? platform? feelings? future?
There is wine and meat and stories here,
There are stars and the sea!
The world is so big,
Longjianfudi "job" is waiting for you!
we need you!
——We Want You——
How high is the sky?
How vast is the land?
What is the salary?
Your ability + your attitude = full salary!
Nuggets engineer, please stay!
Competitive position
——Jobs——
01, 3 mechanical engineers, 7000-30000 yuan / ≉
Job Responsibilities:
1. Responsible for product design and development, and control product development schedule, quality, and cost;
2. Responsible for product improvement, modification and update iteration;
3. Provide BOM and technology support for production, art, and after-sales;
job requirements:
1. The degree of junior college or above, mechanical, mechanical and electrical related majors;
2. With more than two years of product design and development experience, those with experience in designing mining and sand machinery and equipment are preferred;
3. Skilled application of AutoCAD and other drawing software;
4. Strong communication skills and team spirit;
5. Be able to adapt to the travel arrangements;
02. 5 engineers of mobile crushing station 7000-30000 yuan / ≉
Job Responsibilities:
1. Design the main structure according to the requirements of the host, and the matching belt machine, feeder or vibrating screen equipment;
2. According to actual needs, design a hydraulic device for the matching belt conveyor, feeder or vibrating screen equipment to meet the needs;
3. Other technical support of mobile crushing station;
job requirements:
1. Mechanical design, chemical machinery and other related majors;
2. Proficiency in industry design software, such as AUTOCAD, solidwork, and 3D modeling related work experience is preferred;
3. Those with experience in mobile vehicle plus enterprise design and production are preferred;
4. Have relevant experience in designing mobile or crawler crushing stations;
03, 3 structural engineers, 7000-30000 yuan / ≉
Job Responsibilities:
1. In accordance with the company and department plans for new product development and product technology improvement;
2. 5 years or more experience in the design and production of on-site automatic equipment and on-site debugging, can design the complete product independently according to the requirements;
3. Familiar with the mechanical principles and tolerances, familiar with the machining and surface treatment methods of machined parts and sheet metal parts, and understand the mechanical assembly technology;
4. Proficiency in mechanism design, calculation check and material application, familiar with the application of commonly used transmission mechanism, etc .;
5. Familiar with the design of motor, hydraulic, hydraulic, servo stepping and other transmission systems;
6. Familiar with product design, development, assembly, production process, familiar with related product industry standards and test requirements, and be proficient in using various drawing software;
job requirements:
1. Mechanical design related majors in mechanical design and manufacturing and automation, college degree or above;
2. At least three years of mechanical structure design experience;
3. Familiar with structural system simulation analysis tools, able to analyze circuit diagrams of more complex structural systems and perform three-dimensional layout design of structural system loops, and be proficient in use
Solidwork, UG, Proe and other three-dimensional software;
4. Experience in design of mining machinery structure is preferred;
5. Experience in designing radiation protection structures is preferred;
6. Able to do static stress analysis is preferred.
Work together
——Develop Together——
Chongqing Longjian Industrial Group Co., Ltd.
A lot of on-board benefits ... Equity incentives, employee apartments, dining subsidies, five insurance treatments, generous year-end bonus
Holiday gifts, trick team building, travel abroad
More clear career promotion channel
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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
Learn more > -
"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 >