Recently, the service team of Hubei Xingda Import and Export Trading Co., Ltd. traveled far to a project construction site in the Philippines, delivering full-process technical guidance services including DTH drilling rigs and mobile screw air compressors for local mining engineering clients. On-site technical engineers carried out hands-on troubleshooting and on-site training targeting various frequent equipment malfunctions encountered by customers during operation, while sharing standardized fault handling solutions. These efforts effectively ensured steady construction progress for clients and demonstrated the supporting strength of Chinese-manufactured machinery through professional services.

As core air supply equipment for mine drilling and infrastructure construction, mobile screw air compressors operate long-term in harsh field conditions with heavy dust, rough roads and fluctuating temperature and humidity. They are highly susceptible to issues such as abnormal pressure, overheat shutdown, oil leakage, insufficient air output and startup failures, which will directly delay construction schedules. Drawing on practical experience from this on-site service in the Philippines, Xingda has sorted out high-frequency industry faults and standardized solutions for reference by clients at home and abroad:

1.Frequent shutdown due to equipment overheating Causes: Radiator clogged with dust and gravel, insufficient or deteriorated lubricating oil, faulty cooling fan, extremely poor ambient ventilation. Solutions: Clean dust off cooling fins daily after shutdown; replace original special air compressor oil on a regular basis; inspect fan wiring and motor; keep the ventilation zone of outdoor units free from obstructions like gravel and debris.

2.Insufficient air output pressure failing to meet drilling rig operation demand Causes: Severely clogged air filter element, stuck intake valve that cannot fully open, air leakage in pipelines, malfunctioning pressure sensor. Solutions: Replace air filter elements on schedule; disassemble and clean the spool of the intake valve; fully inspect high-pressure pipeline joints and hoses for damage and air leakage; calibrate or replace pressure sensing components.

3.Oil leakage on unit body and seepage in pipelines Causes: Aging oil seals, loose oil pipe joints, damaged oil separator core, blocked oil return pipe. Solutions: Replace aged sealing oil seals; fasten all oil circuit joints; change oil separator core periodically; dredge oil return pipelines to guarantee smooth backflow of lubricating oil.

4.Failure to start normally / tripping upon startup Causes: Unstable voltage, damaged contactor, triggered overload protection, accidental activation of emergency stop switch, motor malfunction. Solutions: Test whether the power supply voltage at the construction site matches the rated parameters of the equipment; inspect contactors and wiring inside the electric control cabinet; check for overload operation and reset protection devices; verify the status of the emergency stop button and repair the drive motor.

5.Excessive moisture in exhaust air that damages downstream drilling rig equipment Causes: Failed post-processing drying device, irregular draining of air storage tank, high ambient humidity. Solutions: Manually drain condensed water from the air storage tank every day; inspect refrigerated dryers and precision filters; select enlarged drying processing components for high-humidity working conditions.

Xingda has specialized in the R&D and manufacturing of air compressors and DTH drilling rigs supporting drilling projects for many years, with business covering multiple countries across Southeast Asia, Africa and Central Asia. Besides supplying complete mobile screw air compressors highly suitable for field engineering, the company has established a comprehensive global after-sales service system. Professional technical teams are dispatched to overseas construction sites to provide one-on-one equipment maintenance, operation training and emergency fault handling.

This on-site service in the Philippines not only quickly resolved the customer’s immediate equipment malfunctions, but also provided hands-on training for local operators on daily maintenance and self-inspection of minor faults, cutting down long-term operation and maintenance costs.

Moving forward, Xingda will continuously upgrade its localized overseas service network. Relying on mature equipment operation and maintenance experience and sufficient stock of original spare parts, we provide round-the-clock technical support for global clients engaged in infrastructure and mine drilling. We strive to enable domestic drilling machinery to gain deeper traction in the international market with stable quality and thoughtful all-round services.