About Us
Anhui Nengjue Construction Machinery Trading Co., Ltd.
Anhui Nengjue Engineering Machinery Trade Co., Ltd. supplies used construction machinery for global buyers, including used excavators, bulldozers, wheel loaders, motor graders and road rollers. With more than 20 years of industry experience and an established delivery network, the company supports equipment selection, inspection, refurbishment, export documentation, international logistics and after-sales service. Its goal is to help buyers source reliable used machinery from China with clearer condition information and practical shipping support.
0+
Years of Experience
0+
Export Countries and Regions
Global Network
Business Distribution
We connect reliable used construction machinery with customers across global infrastructure markets.
0+
Types of machinery
0+
Product inventory
0+
Factory area(m²)
0+
Exporting country
Blog
View More
News Center
Stay updated with company news, equipment insights, and practical guidance for global construction machinery buyers.
Functions of Bulldozers in Operation
The functions of bulldozers extend far beyond simply pushing soil. On construction, mining, roadbuilding, forestry, and land-development projects, a dozer can clear a work area, strip topsoil, move material over short distances, spread fill, rough-grade surfaces, backfill excavations, manage stockpiles, and rip compacted ground. Its value comes from combining high traction with a front blade and, on many machines, a rear ripper or winch. The most productive application depends on machine size, blade type, undercarriage configuration, ground conditions, slope, material density, push distance, and the required finish tolerance. This guide explains what bulldozers do, where they are most efficient, and what to check when selecting a used machine for a specific job. Main Functions of Bulldozers at a Glance Bulldozer…
Bulldozer Application Scope & Key Features
The bulldozer is an earthmoving machine capable of independently performing blading, hauling, and dumping. Its core advantages lie in flexible operation, minimal space requirements, and high efficiency over short distances. Key Characteristics High Work Capacity: Capable of independent excavation and grading. When equipped with a ripper, it can break up hard soil (Class III–IV) or soft rock. Mobility & Adaptability: Crawler Type: Features low ground pressure, high traction, and excellent climbing ability (up to approx. 30°), making it ideal for complex terrain. Wheel Type: Offers high travel speed without damaging paved surfaces, suitable for urban environments. Short Economic Haul Distance: The most economical operating distance is 30–60 meters, with an effective range generally not exceeding 100 meters. Efficiency drops significantly…
06
/ 03
News
Nengjue Used Machinery Export Services
NJ Construction Machinery helps international buyers source used construction machinery for earthmoving, roadwork, material handling and general jobsite applications. Our product range includes used excavators, used loaders, used bulldozers, used motor graders and used road rollers from established machinery brands. Used Machinery Sourcing for Different Projects Choosing the right used machine starts with the work it needs to perform. Excavator buyers usually compare operating weight, bucket capacity, digging reach and hydraulic condition. Loader buyers may focus on rated load, bucket size, transmission response and tire condition. For bulldozers, graders and rollers, the undercarriage, blade or drum, articulation points and service history are important parts of the comparison. Buyers can browse the current used construction machinery inventory to compare available brands,…
06
/ 15
News
Road Roller Operation Methods
Road roller operation requires certified personnel and strict adherence to the workflow: "Inspection – Startup – Operation – Shutdown" to ensure safety. 🚜 Pre-Operation Preparation Personnel Qualification: Operators must undergo professional training and hold a valid operation certificate. Always wear safety helmets, reflective vests, and other Personal Protective Equipment (PPE). Equipment Inspection: Walk around the machine to check engine oil, fuel, hydraulic oil, and coolant levels. Confirm tire pressure, brakes, and steering systems are normal, and ensure there are no obstacles or personnel nearby. 🚗 Driving and Operating Essentials Starting & Moving Off: Place the gear in neutral, set the throttle to 1/4, and warm up for at least 5 minutes. Sound the horn to confirm safety before releasing the…
08
/ 12
News
How to Inspect a Used Cat Excavator: 7 Essential Checks
A used Cat excavator can feel like the practical middle ground between paying new-machine prices and gambling on an unfamiliar brand. You may get proven digging power, widely available parts, dealer support, and many productive years ahead. But there is a catch: two machines with the same model year and hour reading can have completely different futures. One may have spent its life loading loose soil with careful operators and regular servicing. The other may have hammered rock, worked in salt, missed oil changes, and received fresh paint shortly before being listed. The hour meter alone cannot reveal that difference. Key takeaway: You are not simply buying a used Cat excavator. You are buying its previous workload, maintenance habits, hidden…