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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

  • How Does a Type C No-Cylinder Wax Injection Machine Improve Precision Casting?
  • Which Laser Cut Bulk Metal Garage Cabinets Meet Heavy-Duty Storage Needs?
  • What Is an Electric Car and How Does It Work?
  • How Does a Crawler Type Shot Blasting Machine Improve Industrial Surface Treatment?
  • What Is a Handheld Marking Machine Used For?
  • Why Is a Nut Tapping Machine for Furniture Hardware Important for Modern Production?
  • Which Disassembly Plate Heat Exchanger for the HVAC Industry Fits Long-Term Maintenance Needs?
  • Does Hot Rolled Checkered Steel Plate for Platforms Require Anti-Corrosion Treatment

  • How Does a Type C No-Cylinder Wax Injection Machine Improve Precision Casting?

    ​In investment casting, the quality of the wax pattern directly affects the accuracy, surface quality, and consistency of the final metal casting. For manufacturers producing complex or precision components, the wax injection stage therefore requires stable temperature control, reliable injection pressure, accurate mold clamping, and efficient operation. The Type C No-Cylinder Wax Injection Machine is designed to address these requirements while simplifying the wax injection process.

  • Which Laser Cut Bulk Metal Garage Cabinets Meet Heavy-Duty Storage Needs?

    Which Laser Cut Bulk Metal Garage Cabinets can support demanding workshop storage? Explore steel construction, precision cutting, flexible layouts, durable finishes, bulk production, OEM customization, and practical sourcing considerations.

  • What Is an Electric Car and How Does It Work?

    An electric car is more than a vehicle with a large battery. Its performance depends on the interaction between the battery pack, electric motor, inverter, charging system, thermal management components, regenerative braking and vehicle control software. This guide explains the basic structure of an electric car, how electricity becomes motion, what determines driving range, how charging works, and which practical factors matter when evaluating an EV for daily transportation or commercial use.

  • How Does a Crawler Type Shot Blasting Machine Improve Industrial Surface Treatment?

    ​A Crawler Type Shot Blasting Machine is designed to clean, descale, deburr, and prepare metal workpieces through controlled high-speed abrasive impact. Unlike manual surface cleaning or less suitable blasting methods, the crawler system allows multiple small and medium-sized components to tumble or move through the blasting zone while receiving relatively consistent treatment. This makes it particularly useful for foundries, automotive component manufacturers, machinery plants, and metal-processing operations where surface preparation must be efficient and repeatable.

  • What Is a Handheld Marking Machine Used For?

    Learn what a Handheld Marking Machine is used for, including metal part identification, serial numbers, QR codes, logos and industrial traceability. Explore applications, material compatibility and selection tips from Jinan Luyue.

  • Why Is a Nut Tapping Machine for Furniture Hardware Important for Modern Production?

    ​Furniture hardware may be small, but the quality of its internal threads directly affects assembly accuracy, connection strength, and the finished product's reliability. As furniture manufacturers and hardware suppliers move toward higher-volume and more consistent production, manual or semi-automatic tapping methods can become difficult to manage. A Nut Tapping Machine for Furniture Hardware provides an automated approach to processing internal threads in furniture nuts, threaded inserts, and other metal hardware components.

  • Which Disassembly Plate Heat Exchanger for the HVAC Industry Fits Long-Term Maintenance Needs?

    Learn how to select a disassembly plate heat exchanger for HVAC applications based on heat duty, pressure, temperature, fluid compatibility and maintenance access. Jiangyin Daniel Cooler Co., Ltd. provides practical plate heat exchanger solutions for heating and cooling systems.

  • Does Hot Rolled Checkered Steel Plate for Platforms Require Anti-Corrosion Treatment

    When specifying Hot Rolled Checkered Steel Plate for Platforms, engineers and project managers often ask whether anti-corrosion treatment is truly necessary. At Sanhe, we have supplied thousands of tons of Hot Rolled Checkered Steel Plate for Platforms to industrial, commercial, and municipal projects worldwide. The short answer is yes—but the type and extent of treatment depend on several critical factors. This guide explains when protection is essential, which methods perform best, and how to specify the right system for your platform.

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