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.
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We connect reliable used construction machinery with customers across global infrastructure markets.
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Stay updated with company news, equipment insights, and practical guidance for global construction machinery buyers.
Bulldozer Maintenance and Care
Used bulldozer maintenance is not just a service schedule. It is a daily system for finding wear before it becomes downtime. A reliable plan combines pre-start checks, correct fluid and filter service, undercarriage measurement, cooling-system care, hydraulic inspection, operator reporting, and accurate records. Service intervals vary by manufacturer, model, serial-number range, operating environment, fluid specification, and attachment use. Always follow the operation and maintenance manual for the exact machine. Use the intervals below as planning guidance, not as a replacement for the manufacturer schedule. Why Used Bulldozer Maintenance Starts With a Baseline When a used dozer enters your fleet, do not assume that the previous service history is complete. Record the serial number, meter hours, active fault codes, fluid levels,…
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…
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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…
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/ 04
News
Excavator Operation Inspection Points
During excavator operations, supervising engineers must focus their safety patrols and inspections on four core dimensions: Personnel Qualification, Equipment Status, Working Environment, and Operational Compliance. 1. Personnel and Access Management Verification of Certification: Strictly inspect whether operators hold a valid Special Equipment Operation Certificate, ensuring it is within its validity period and matches the equipment category. Working without a certificate or with an expired license is strictly prohibited. Technical Disclosure: Confirm that written safety technical disclosures have been completed prior to work. Operators must be aware of underground utility distribution, emergency measures, and the day's risk points. Working Hour Compliance: According to the 2026 New Regulations, supervise that continuous operation time does not exceed 4 hours to prevent fatigue-related accidents.…
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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…