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,…
Loader Operation Methods & Procedures
Loader operation is divided into three main steps: Pre-start Inspection, Operating Procedure, and Shutdown & Maintenance. The core principle is: Certified Operation and Safety First. 1. Pre-Start Preparation Vehicle Inspection Check tire pressure, engine oil, and coolant levels. Ensure bolts are tight and there are no signs of oil or water leakage. Environmental Check Walk around the machine to confirm there are no personnel or obstacles nearby. Clear the area and ensure it is safe before boarding. Personnel Qualification Operators must hold a valid Special Equipment Operation Certificate. Operating under the influence of alcohol, while fatigued, or while ill is strictly prohibited. 2. Operating Techniques Starting & Warm-up Start the engine with the key and let it idle for several…
07
/ 16
News
Used Cat Excavator: 7 Checks Before You Buy
A used Cat excavator can help you add digging capacity without paying the full price of a new machine. It can also become an expensive problem if you focus only on the model year, paint, or hour meter. You may find two excavators of the same model with nearly identical hours, yet one is ready to work while the other needs an undercarriage, hydraulic repairs, and emissions-system service. The difference often comes down to how the machine was operated, maintained, stored, transported, and repaired. The market also changes quickly. In May 2026, inventory for used heavy-duty construction equipment in the United States was down 11.55% year over year. Used crawler excavator inventory fell 1.41% month over month, while crawler excavator…
06
/ 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.…
05
/ 21
News
Precautions for Used Machinery Operation
The core principle for operating used machinery is "Inspect Before Operation, Strict Load Control, and High-Frequency Maintenance." Due to the unknown history of the equipment, a more cautious approach than with new machines is mandatory. 1. In-Depth Inspection Before Commissioning Core Component Health Check: Focus on the engine (checking for smoke and oil leaks), hydraulic system (hose aging and pressure loss), and drivetrain (gear and bearing wear). Never operate a machine with known faults. Structural Integrity Verification: Carefully inspect load-bearing components such as the frame and boom for secondary welding, cracks, or straightening marks. Be vigilant for structural fatigue damage hidden by refurbishment. Documentation & Compatibility: Verify the nameplate serial number to confirm actual age. Ensure fuel grades and lubricant…