Download：SAMYHI Corporate Profile.pdf
National Search-Recruit elite mechanical engineers!
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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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Gathering Strength of Young Entrepreneurs, Demonstrating the Responsibility of Intelligent Manufacturing ——Sanming Heavy Industry Discusses New Development Drivers with the Municipal Young Entrepreneurs Delegation
On March 17, the event “Young Entrepreneurs United for Common Development” was successfully held in Wanzhou. Hosted by Chongqing Federation of Industry and Commerce, and organized by Wanzhou District Federation of Industry and Commerce and Chongqing Young Entrepreneurs Chamber of Commerce, the inspection and exchange activity gathered representatives from various chambers and relevant government authorities.
During the event, the delegation led by Chongqing Young Entrepreneurs Chamber of Commerce, together with representatives from Wanzhou Economic Development Zone Chamber of Commerce, Wanzhou District Young Entrepreneurs Chamber of Commerce and relevant government officials, visited Chongqing Sanming Heavy Industry Co., Ltd. for on-site inspection and in-depth exchanges.
The delegation toured the assembly and finished product workshops of Sanming Heavy Industry, gaining a detailed understanding of the company’s production, R&D, product application and operation management. They spoke highly of the company’s comprehensive strength in mining equipment manufacturing and providing integrated solutions for infrastructure aggregate systems.
Accompanying the inspection, Mr. Long Han Lijue, General Manager of Sanming Heavy Industry, stated that amid Chongqing’s efforts to build a national key advanced manufacturing center, Wanzhou’s drive to become a major sub-center of the city, and the Economic Development Zone’s push for the “3233” modern manufacturing system, the enterprise will uphold innovation-driven development, continuously strengthen technological breakthroughs and quality improvement, actively support transportation infrastructure and regional economic growth, and accelerate market expansion along the Belt and Road.
Based on this inspection and exchange, Sanming Heavy Industry will actively integrate into the “Young Entrepreneurs United for Common Development” development layout, participate in chamber activities, leverage the advantages of government and chamber platforms, deepen cooperation with peer enterprises, promote resource sharing and industrial collaboration, stimulate new development drivers with new quality productive forces, and contribute intelligent manufacturing strength to the high-quality development of the regional economy.
Learn more > -
Chongqing-Xinjiang Unity Paves the Way | Sanming Heavy Industry's Modular Equipment Delivered to Xinjiang for S24 Expressway Construction
Revitalizing the Ancient Silk Road, Embarking on a New Journey at the Foot of the Tianshan Mountains. Recently, a batch of modular mining equipment from Chongqing Sanming Heavy Industry, embodying the robust strength of Chongqing intelligent manufacturing, has completed long-distance transportation and safely arrived at the construction site of the Shanshan–Kumush Section of Xinjiang S24 Expressway. Integrating high efficiency, stability and intelligence, this crushing and screening equipment will be fully deployed in the project, forging a solid "lifeline" of aggregate supply for a key western transportation hub project, and empowering high-quality development of the core area of the Silk Road Economic Belt through solid work and responsibility.
Precision Adaptation to Key Projects, Intelligent Equipment Overcomes Complex Working Conditions
The Shanshan–Kumush Section of S24 Expressway, a key transportation infrastructure project of the Xinjiang Uygur Autonomous Region, stretches 182.038 kilometers and serves as a critical link connecting the G30 and G3012 trunk highways. Traversing complex areas including the Flaming Mountains and the Kumtag Desert, the project, upon completion, will end the history of local residents taking detours to enter or exit Xinjiang, significantly enhancing transportation connectivity and mineral transport efficiency in eastern Xinjiang. It holds milestone strategic significance for optimizing the regional road network, boosting cultural and tourism development, and promoting economic and social progress along the route.
To fully meet the project’s construction demands, Sanming Heavy Industry has custom-developed a modular crushing and screening production line, integrating three core pieces of equipment: the PEW Series Jaw Crusher, the VF New-type Impact Crusher, and the YKR Series Vibrating Screen. This forms a highly efficient full-process processing system of "primary crushing + secondary crushing + screening". With a designed hourly capacity of 200,000 to 300,000 tons, the line efficiently handles crushing challenges of high-hardness parent rocks such as basalt. The finished crushed stone features excellent particle shape, low flakiness content and high compressive strength, with all indicators far exceeding national standards for expressway construction, guaranteeing high-quality aggregates for core works including subgrades, tunnels and bridges.
Empowered by Modular Design, Efficient Solutions to Xinjiang Construction Challenges
In response to complex working conditions in Xinjiang, such as low temperatures, strong winds and sand, scattered construction sites and tight schedules, Sanming Heavy Industry’s modular equipment achieves integration, standardization and high efficiency in design, effectively addressing pain points of traditional construction:
- Quick installation and accelerated commissioning: Adopting an integrated modular structure, the equipment requires no large-scale civil construction and can be rapidly assembled and put into operation upon arrival. This greatly shortens the pre-construction preparation period, enables fast deployment on conventional sites, and precisely matches the tight project schedule.
- Compact layout and flexible adaptation: With a compact layout and small footprint, the equipment is highly flexible for relocation and movement. It perfectly adapts to field construction in Xinjiang’s complex geographical environments, including Gobi deserts, wilderness and mountainous areas, effectively solving problems such as scattered construction sites and limited civil conditions.
- Strong resilience and stable operation: The equipment has undergone special optimization for wear resistance, sealing and cold resistance to suit Xinjiang’s extreme climate. Operational stability, continuity and durability have been upgraded, enabling long-term high-intensity and heavy-load operation to provide consistent and reliable equipment support for project construction.
Empowering Western Infrastructure Development, Chongqing Intelligent Manufacturing Writes a New Chapter of Cooperation
As a Chongqing-based manufacturing enterprise deeply engaged in the mining equipment sector for more than 30 years, Sanming Heavy Industry has consistently aligned with national strategic layouts including the New Western Land-Sea Trade Corridor and the Chengdu-Chongqing Economic Circle, driving product upgrading through technological innovation and empowering major projects with high-quality services.
The establishment of its Xinjiang Branch in 2026 has further built an integrated service system of "equipment supply + technical service + after-sales support", providing efficient supporting solutions for regional transportation infrastructure, energy development and other projects. The smooth arrival and application of the modular production line in Xinjiang represents a vivid practice of Sanming Heavy Industry leveraging local intelligent manufacturing to serve major western infrastructure, as well as a strong testament to industrial cooperation and joint development between Chongqing and Xinjiang.
Going forward, Sanming Heavy Industry will continue to take technological innovation as its core driving force, constantly optimize product performance and improve its service system, and deeply participate in more national key projects in Xinjiang and western China. With solid work and a strong sense of responsibility, the company will write a new chapter in serving national strategies.Learn more > -
Heroines Shine in Splendor, Craftsmanship Builds Heavy Industry Chongqing Sanming Heavy Industry Holds Post Condolence Activities for International Women's Day
As spring breeze graces every post and radiance blooms in full splendour, on the occasion of the 116th International Women’s Day, Chongqing Sanming Heavy Industry extended care and greetings to female employees at production workshops, technical positions and office frontlines. We presented gifts and festival wishes to all women colleagues who stick to their posts, wishing you a joyful holiday, happiness and good health.
Women Inheriting Legacy, Leading the Development of Mining Equipment Together
The mining equipment industry has long been a domain of steel sparks and strength. Yet, the female employees of Sanming Heavy Industry shine uniquely in this robust field with the distinctive delicacy, resilience and responsibility of women.
They are rooted in key positions including production, R&D, quality inspection and logistics. With modesty and diligence, they build a solid line of defense for product quality through rigor and precision, drive technological innovation with professional wisdom, and ensure the efficient operation of the enterprise with dedication.
With their persistent efforts day in and day out, they hold up “half the sky” of Sanming Heavy Industry’s development, injecting gentle yet unwavering strength into the company’s progress.
Every act of care and kindness is a source of motivation for moving forward. May all female employees turn this warmth and recognition into driving force at work.
We hope you will continue to uphold your original aspirations, demonstrate your value through diligence, and shine brilliantly on the broad stage of the mining equipment industry. Let us stand together with Sanming Heavy Industry and jointly write a new chapter.
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This post-care activity for International Women's Day has not only made the female employees truly feel the warmth and care of the enterprise, but also demonstrated the corporate culture of Sanming Heavy Industry: respecting women, caring for women, and empowering women.
In the future, the company will continue to build a broader platform for career growth, stand side by side with all women strugglers, uphold our original aspiration with craftsmanship, and pursue long-term development with steady dedication.Learn more >
