Crawler Excavator
Your Professional Crawler Excavator Supplier!
Shandong Zhongjue Heavy Industry Co., Ltd., established in 2015, originated from the predecessor Hengyuan Group. The company first founded Jining Luzhong Machinery Equipment Co., Ltd. in 2015, followed by the establishment of Shandong Zhongjue Heavy Industry Co., Ltd. in 2019 and Shanyi Heavy Industry Co., Ltd. in 2022. Dedicated to the fields of agricultural machinery and small to medium-sized construction machinery, the company operates with advanced production facilities and modern manufacturing processes. Our product portfolio includes fully hydraulic wheel excavators, small and medium-sized tracked excavators, CNC steel processing equipment, dredging and demolition robots, as well as customized modification solutions for special excavator applications.
Why Choose Us
Certifications & Qualifications
We have obtained ISO 9001 Quality Management System Certification and ISO 14001 Environmental Management System Certification, as well as EU CE certification, demonstrating our ability to manage quality and the environment in accordance with international standards.
Advanced Equipment
We are equipped with a complete modern production equipment system covering key manufacturing processes such as precision cutting, forming, welding, machining, assembly, testing, and painting, ensuring comprehensive product manufacturing precision and process stability.
Sales Market
Our domestic business continues to grow steadily, and our overseas markets have successfully expanded to Europe, the Americas, Southeast Asia, Africa, and other parts of Asia; initially establishing a broad global sales and service network.
High-Quality Service
We provide customized solutions and assist customers in extending equipment lifespan through a rapid response mechanism. Services include regular maintenance, comprehensive spare parts supply, technical training, value-added services, warranty service，and an efficient complaint handling mechanism.
Specification
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ZJ40 CRAWLER EXCAVATOR |
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Dimensions |
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Overall Length(erm lowered) |
4400(MM) |
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Overall Height |
2200(MM) |
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width |
1530/1600(MM) |
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Track width |
300(MM) |
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Total track length |
2175(MM) |
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Track gauge |
1703(MM) |
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Platform ground clearance |
557(MM) |
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Working Range |
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Max.Digging Height |
4450(MM) |
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Max.Dumping Height |
3050(MM) |
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Max.Digging Depth |
2545(MM) |
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Maximum digging distanc |
4630(MM) |
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Max.Digging radius |
4730(MM) |
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Minimum radius of gyration |
1820(mm) |
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Maximum lifting height of earth shovel |
359(MM) |
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The maximum digging depth of dozer |
268(MM) |
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Min Tail swing radius |
1170(MM) |
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Engine |
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Model |
Changchai ZN490 / Laidong 490 / Yanmar 3TVN-88 |
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Power |
34KW/19.6KW |
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Cooling method |
Water-cooling Diesel engine |
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Hydraulic System |
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Operating Pressure |
22mpa |
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Walking motor |
Two speed plunger |
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Rotary motor |
Variable plunger |
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The main pump |
32cc Plunger 32cc |
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Flow |
99/MIN |
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Performance parameter |
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Climbing ability |
35° |
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Maximum digging force |
55.6KN(5560) |
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Travel speed |
2.7/4.6km/h |
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Unit swing speed |
9-11r/min |
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Rail contact pressure on the ground |
34.8kpa [ 0.355kgf/cm ² ] |
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Specification |
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(SAE)Bucket Capacity |
0.26m³ |
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Fuel reservoir |
60L |
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Hydraulic tank capacity |
75L |
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Operating Weight |
3600kg |
Advantages of Crawler Excavator
Versatility
One of the most significant advantages of crawler excavators is their versatility. They can work on various terrains, including rough or uneven surfaces, without the risk of tipping over. The tracks provide stability and support, making it easier to manoeuvre around tight spaces and work in challenging conditions.
Stability
One of the many advantages of crawler excavators is their stability. The tracks distribute the excavator's weight over a larger surface area, reducing the risk of tipping over. This stability allows them to handle heavier loads and perform more heavy-duty tasks than other excavators.
Power
Crawler excavators are also incredibly powerful, making them popular for mining and other heavy-duty applications. They can handle larger loads and dig deeper than other excavators, making them a more efficient tool for moving large quantities of earth. The tracks provide additional traction and grip, allowing them to work more effectively in wet or muddy conditions.
Efficiency
Crawler excavators are incredibly efficient, allowing them to move quickly and easily around job sites. This speed and agility can reduce the time and effort required to complete projects, resulting in more efficient and cost-effective operations. Additionally, their fuel efficiency is higher than wheeled excavators, making them a more environmentally friendly choice.
Adaptability
Crawler excavators are incredibly adaptable, thanks to the various attachments available. You can fit them with multiple tools, including hammers, buckets, and grapples, to perform different tasks. This adaptability makes them versatile tools on construction sites, where they can handle various tasks without needing multiple pieces of equipment.
Our Best-Selling Crawler Excavator
Our Company Has More Products to Offer, Please Browse the Product Categories on the Website, If You Have Any Needs, Please Contact Us.
Ton Mini Excavator
The 1 Ton Mini Excavator is a lightweight device specifically designed for small-scale work environments. With an operating weight of only one ton and a compact, flexible body featuring a small turning radius, the 1 ton mini excavator can easily navigate space-constrained areas such as home gardens, narrow alleys, and indoor renovation sites, enabling work to commence without complex site planning.
Landscaping Excavator
The Landscaping Excavator is a lightweight equipment designed specifically for operation in confined spaces. With an operating weight of 3600 kg and a standard 0.26 m³ bucket, this landscaping excavator balances working efficiency with agility and mobility, making it suitable for small-scale project scenarios like municipal maintenance and rural infrastructure construction.
Excavators for Municipal Construction
Industry-renowned Weichai high-performance engine: Equipped with a Weichai WP4.6N four-cylinder engine, delivering a powerful 129kW of power, its performance rivals that of mainstream six-cylinder engines in the industry, fully meeting the 20-ton operating needs of customers. Daily operations are streamlined and hassle-free. Optimized post-processing regeneration logic extends regeneration intervals, saves fuel, and ensures maximum operational efficiency.
Design and Functioning of a Crawler Excavator
A crawler excavator consists of the undercarriage (crawler undercarriage), upper carriage (engine, hydraulics, cab), and the equipment set (boom, stick, quick coupler/adapter plate). The auxiliary hydraulics provide the attachment with oil flow and pressure.
Crawler undercarriage and stability
Stability results from track gauge, track length, and machine mass. Wide track shoes reduce ground pressure and improve bearing capacity on soft ground, while narrow, toothed shoes provide more traction on rocky terrain.
Hydraulics and auxiliary circuits
Key parameters are maximum system pressure, flow rate (L/min), return line and, if applicable, case drain connection. For high-performance concrete demolition shears, combination shears, and steel shears, a high-throughput, pressure-stable auxiliary circuit with sufficient tank capacity and cooling is important.
Basic Principles of Crawler Excavator
The operation of a crawler excavator involves several components working together:
Engine:
The heart of the excavator, providing power to the hydraulic system.
Cab:
The operator's station, equipped with controls and a comfortable seating position.
Hydraulic System:
Consists of pumps, valves, and cylinders that control the movement of the excavator's boom, arm, bucket, and tracks.
Tracks:
The crawler tracks provide mobility and stability.
Common Applications of Crawler Excavator
Excavation operations: Crawler excavators are equipped with powerful buckets that can excavate various types of soil and rocks. They are widely used in earth excavation, foundation excavation, road cutting construction and other fields.
Loading and transportation: Crawler excavators can load excavated materials into transport vehicles, or unload them directly to designated locations, such as stockpiles, landfills, etc.
Leveling operations: Crawler excavators can use their bulldozers and scrapers to perform ground leveling, backfilling and other operations to improve operating efficiency and accuracy.
Crushing operations: Crawler excavators can be equipped with breakers and other devices to perform rock crushing, concrete crushing and other operations, and are widely used in construction demolition, road maintenance and other fields.
Hoisting operations: Crawler excavators can be equipped with hoisting equipment, such as hooks, grab buckets, etc., to perform hoisting, transportation and other operations. They are widely used in construction sites, logistics and transportation and other fields.
Other operations: Cawler excavators can also be used in river dredging, fire rescue, military engineering and other fields. Its versatility and flexibility make it one of the indispensable and important equipment in the engineering field.
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