Buyer's Guide
Frequently Asked Questions
Transparent answers on procurement, factory origin, and delivery.
Zhejiang Bili Machinery Co., Ltd was founded in 2022 in Quzhou City, Zhejiang Province as an integrated foreign trade subsidiary of Kaishan Group. We operate directly from Kaishan's primary manufacturing base to handle global marketing, customer engineering consulting, and direct export deliveries.
DTH drilling relies heavily on matching air volume (m³/min) and working pressure (Bar) to lift heavy cuttings out of the borehole. Sourcing compressors locally often leads to mismatched pressure, causing bit jamming or slow penetration. Bili Machinery pairs Kaishan's proprietary screw compressors with our rigs for calibrated performance and bundled freight savings.
We enforce a 100% pre-shipment testing protocol. Before packing, our test technicians film a comprehensive operational inspection video demonstrating engine start, hydraulic mast extension, rotation torque, and compressor air delivery. This video package and machine serial photos are sent to you for confirmation before crating.
Standard models (such as KW180R, KW300, KG510H, and LGCY mobile compressors) are frequently in stock for shipment within 7–10 days. Custom configured machinery (special engine emissions, customized voltages, or truck-mounted rigs) typically ships within 15–25 business days from Ningbo or Shanghai Port.
We maintain a dedicated spare parts division supplying genuine Kaishan DHD bits, drill pipes, filters, and hydraulic valves. Emergency spare parts ship via express air courier within 72 hours. Furthermore, all equipment comes with comprehensive English parts manuals and online video engineer assistance.
