Given that my country lacks a dedicated quality inquiry and registration system for used construction machinery, leading to some market chaos, how can we ensure we purchase a rotary drilling rig that meets our needs? Price is a primary concern, as it is often linked to quality. So, how can we buy a rotary drilling rig with a high cost-performance ratio?#bore hole driller#
① First, when purchasing a used rotary drilling rig, check its condition, including the paint and exterior.
② Inspect the engine, checking for unstable idling speed, abnormalities, and power output. Check the exhaust.
③ If possible, inspect the rig's performance.
④ Check that all electrical components are functioning correctly.
⑤ Check the rig's operating time; 2000-4000 hours is generally ideal.
⑥ Check the peak pressure of the hydraulic main pump, inspect for corrosion, ensure the hydraulic oil is clean, and verify the hydraulic system's operation.
⑦ Inspect easily worn parts such as the drill rod, wheels, and mains.#bore hole driller#
