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.
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…
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,…
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/ 12
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Maintenance & Repair of Used Motor Graders
Upon purchasing a used motor grader, the core strategy must be "Comprehensive Inspection, Proper Break-in, and Strict Maintenance." Due to the unknown history of previous usage, it is critical to focus on hidden wear and oil contamination. Systematic maintenance is required to restore performance and extend service life. I. In-Depth Inspection Upon Purchase (Critical Steps) Before deploying the machine for high-intensity operations, a full teardown-level inspection is necessary to prevent operating with existing faults. Powertrain System: Check engine oil for metal shavings (indicating cylinder or bearing wear). Test torque converter outlet pressure and oil temperature; if the oil contains a large amount of aluminum particles and the temperature spikes rapidly, this indicates damage to the pump or turbine wheel, requiring…
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/ 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…
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/ 02
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Post-Operation Handling of Excavators
Post-Operation Handling of Excavators Upon completing operations, the excavator must strictly follow the four-step process of "Parking, Inspection, Cleaning, and Storage" to ensure equipment safety and prolong service life. Core Shutdown Procedures Idle Cool-down: Before turning off the engine, allow it to idle for 3–5 minutes to let the turbocharger and engine temperature decrease naturally. Direct shutdown under high temperatures is strictly prohibited. Reset Devices: Position the machine squarely, lower the bucket to the ground (bottom touching the surface), and release hydraulic system pressure. Place all control levers in Neutral, and push the safety lock lever to the Locked position. Power Cut-off: Engage all brakes, turn off the engine, and lock the doors, windows, and cab. Post-Operation Inspection and Cleaning…