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Jianjia Heavy Industry focuses on the research and development, leasing, and aftermarket services of construction machinery. Its core products include small and medium-sized excavators, loaders, and specialized equipment for tunnel construction. We reduce equipment maintenance complexity through modular design and provide a flexible cooperation model of "renting instead of selling" to help customers cope with schedule fluctuations and financial pressures.
The company has provided equipment support for road, water conservancy, and municipal projects in 12 provinces in China, with an average fault free working time of equipment exceeding the industry standard by 22%.

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New Products

Original Komatsu Used PC45mr-2 PC45 Second Hand Excavator with High Quality

Original Komatsu Used PC45mr-2 PC45 Second Hand Excavator with High Quality

Factory Sale 2000kg Small Digger Miniexcavadora/Excavadora/Mini Excavator

Factory Sale 2000kg Small Digger Miniexcavadora/Excavadora/Mini Excavator

1 Ton Mini Digger Shovel

1 Ton Mini Digger Shovel

Used Good Quality/80% New/Cat 312bcat 320d/320c/325c/330c Crawler Excavator Excavadora De Cadenas Usada De Buena Calidad / 80% Nuevo

Used Good Quality/80% New/Cat 312bcat 320d/320c/325c/330c Crawler Excavator Excavadora De Cadenas Usada De Buena Calidad / 80% Nuevo

Factory Supply Concrete Batching Plant with Higher Accuracy

Factory Supply Concrete Batching Plant with Higher Accuracy

Used Wonderful Working Condition Japan 35 Ton Crawler Excavator Kobelco Sk350LC-8 Digger for Sale

Used Wonderful Working Condition Japan 35 Ton Crawler Excavator Kobelco Sk350LC-8 Digger for Sale

6 Inches Hollow Block Making Machine in Jamaica Qt4-24 Concrete Pavement Brick Machine

6 Inches Hollow Block Making Machine in Jamaica Qt4-24 Concrete Pavement Brick Machine

Qt8-15 Automatic Paver Block Machine for Road Pavement

Qt8-15 Automatic Paver Block Machine for Road Pavement

News

  • UV Digital Printer Company: Innovating High-Speed, High-Resolution Printing Solutions for Modern Businesses
  • How Does a Steel Plate Pretreatment Line Improve Industrial Surface Quality?
  • How VCI Paper Protects Metal from Corrosion During Storage and Shipping
  • How Does a Box Forming Machine Improve Packaging Efficiency?
  • How Does a Closed Eccentric Gear Press Work and Why Is It Important?
  • How Does Industrial High-temperature Oven Improve Industrial Heat Processing?
  • How Does an Automatic Brick Production Line Improve Manufacturing Efficiency?
  • What Makes a Cutter Suction Dredger with Gold Washing Plant the Most Efficient Solution for Alluvial Gold Mining?

  • UV Digital Printer Company: Innovating High-Speed, High-Resolution Printing Solutions for Modern Businesses

    Discover how Danmajet is reshaping the world of UV digital printing with unmatched speed and precision. This article dives into the company's groundbreaking technology that transforms bold concepts into high-resolution signage, custom packaging, and complex industrial prints faster than ever. Through real-world insights, you'll see why Danmajet stands apart in a crowded market, pushing beyond conventional limits to deliver vibrant, durable results. Learn how their innovative approach empowers businesses to accelerate production without sacrificing quality, making the impossible a daily reality. Whether you're an industry veteran or a curious newcomer, get ready to explore the future of print—where creativity meets cutting-edge engineering.

  • How Does a Steel Plate Pretreatment Line Improve Industrial Surface Quality?

    ​Steel Plate Pretreatment Line is a critical system in modern steel processing industries, designed to clean, strengthen, and prepare steel plates before they undergo coating, welding, cutting, or further fabrication. In heavy industries such as shipbuilding, automotive manufacturing, construction machinery, and steel structure engineering, surface quality directly determines product durability and performance. A well-designed pretreatment line not only enhances adhesion for coatings but also significantly extends the service life of steel components.

  • How VCI Paper Protects Metal from Corrosion During Storage and Shipping

    VCI Paper (Volatile Corrosion Inhibitor Paper) is a specialized packaging material designed to prevent rust and corrosion on metal products during storage, transportation, and long-term warehousing. By releasing corrosion-inhibiting molecules that form a protective molecular layer on metal surfaces, VCI Paper eliminates the need for oil-based coatings and complex post-cleaning processes. This article explains how VCI Paper works, its industrial applications, selection criteria, and best practices for achieving maximum protection efficiency in real-world environments.

  • How Does a Box Forming Machine Improve Packaging Efficiency?

    In modern manufacturing and logistics environments, packaging efficiency directly impacts production cost, delivery speed, and product safety. A Box Forming Machine has become a critical piece of automation equipment for businesses aiming to streamline carton erection and reduce manual labor dependency. This article explores how this machine works, its key advantages, selection considerations, and real-world applications. It also provides a structured overview of how companies like Jinjiu Packing Machinery are advancing packaging automation technology to support diverse industrial needs.

  • How Does a Closed Eccentric Gear Press Work and Why Is It Important?

    A closed eccentric gear press is a high-performance mechanical press widely used in metal forming, stamping, and precision manufacturing industries. It integrates eccentric gear transmission technology with a closed-frame structure to deliver high rigidity, stable force distribution, and superior accuracy. This article explains its working principle, structural advantages, industrial applications, selection considerations, and maintenance requirements. It also addresses common user concerns such as efficiency loss, operational stability, and long-term durability, helping manufacturers make informed purchasing decisions.

  • How Does Industrial High-temperature Oven Improve Industrial Heat Processing?

    Industrial high-temperature ovens are essential thermal processing equipment used across manufacturing, electronics, automotive, aerospace, and materials engineering industries. They provide controlled, stable, and uniform heating environments for processes such as curing, drying, aging, annealing, and heat treatment. This article explains how industrial high-temperature ovens work, their core features, applications, selection criteria, and maintenance practices. It also highlights key challenges users face and how modern solutions, including equipment from Dingfeng, address these issues effectively.

  • How Does an Automatic Brick Production Line Improve Manufacturing Efficiency?

    An Automatic Brick Production Line is a modern industrial system designed to transform raw materials such as clay, shale, concrete, and fly ash into high-quality bricks with minimal manual intervention. By integrating automation technologies, hydraulic systems, intelligent control units, and continuous production workflows, it significantly improves output consistency, reduces labor dependency, and optimizes operational costs. This article explores how such systems work, what components are involved, and why they are becoming essential for construction material manufacturers worldwide.

  • What Makes a Cutter Suction Dredger with Gold Washing Plant the Most Efficient Solution for Alluvial Gold Mining?

    ​In modern alluvial gold mining, efficiency, mobility, and integrated processing have become the key factors determining project profitability. Among various mining solutions, the Cutter Suction Dredger with Gold Washing Plant stands out as a highly effective system that combines dredging, screening, and gold recovery into one continuous operation. It is widely used in river mining, tailings recovery, and offshore sediment processing due to its strong adaptability and high recovery rate. Companies like Qingzhou Jinqi Mining Machinery Co., Ltd. have developed advanced models that significantly improve mining productivity while reducing operational costs.

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