Zhengzhou Hongyue Drill knows that every minute of drilling operations matters to your bottom line. Therefore, we not only provide high-quality PDC bits and drilling tools, but have also built a full-cycle service system covering pre-sale, in-sale and after-sale stages. From selection guidance to on-site training, from bit rebuild to emergency spare parts supply, our professional technical team is always your most reliable backup. Letting you buy with confidence and use with peace of mind is Hongyue Drill's unchanging commitment.
Comprehensive coverage of pre-sale, in-sale and after-sale stages, providing one-stop drill tool solutions
7×24 all-weather online service. Senior engineers quickly diagnose and solve various technical problems in bit use via phone, video call or on-site inspection. Whether you are deep in a mine or at a remote site, we are always by your side.
Professional PDC bit wear assessment and rebuild services, including full-process procedures such as cutter replacement, matrix repair and nozzle cleaning. Rebuilt bits undergo strict quality inspection with performance recovery of over 80%, significantly reducing customers' overall operating costs.
Based on the geological conditions, rock types, hole diameter and depth requirements of the customer's construction area, our technical team provides optimal bit model recommendations and drilling parameter solutions for free, avoiding efficiency losses and cost waste caused by improper selection.
Providing purchasing customers with hands-on training in bit installation, operation and routine maintenance, helping front-line operators master correct usage, extend bit service life and reduce abnormal damage caused by improper operation.
Year-round inventory of genuine OEM parts such as nozzles, bit seats, connectors and seals, with fast shipping. Ensures customers do not wait long for part replacement and restores normal drilling tool operation in the shortest time.
All PDC bits and drilling tools shipped by Hongyue Drill enjoy a standard warranty period (6-12 months). During the warranty period, confirmed manufacturing defects or material problems not caused by human factors are repaired or replaced free of charge.
Standardized processes ensure every service is efficient, transparent and traceable
Customers submit service requests via phone, email, WeChat or the online form. Customer service responds within 1 hour, registers issue details and creates a service ticket, providing a complete record basis for subsequent handling.
Issues are assigned to engineers in the corresponding field for professional diagnosis based on type. Using photos, videos or operating data provided by the customer, they analyze and determine wear causes, failure types or selection needs.
Engineers propose solutions based on diagnosis results, which may include repair plans and quotations, rebuild assessment reports, alternative product recommendations or on-site service arrangements, confirming details with the customer one by one.
Execution starts immediately after mutual confirmation — repairs and rebuilds follow standard procedures, parts are shipped as agreed, and engineers are dispatched for on-site training according to schedule, ensuring every step proceeds in an orderly manner.
After service completion, the customer conducts acceptance confirmation, and repaired/rebuilt products come with inspection reports. The customer service team follows up within 7 working days after completion, collecting satisfaction feedback and continuously tracking product usage.
Your most concerned questions about after-sales service are here
Please take clear photos of worn parts (multi-angle recommended), and provide operating conditions including rock type, WOB, RPM, cumulative footage, etc. Send via WeChat or email to our after-sales department. Our engineers will complete wear assessment and issue an analysis report within 24 hours, then propose repair, rebuild or replacement suggestions. The entire assessment is free of charge.
Most non-structurally damaged PDC bits can be rebuilt. Our rebuild process includes inspection, removing old cutters and matrix residues, re-welding or setting new cutters, matrix repair, surface treatment, and nozzle cleaning. Rebuilt bits must pass appearance, dimension and performance tests. Typically, rebuilt bits recover 80%+ performance of new bits at 30%-50% cost.
This is the most important part of pre-sales service. Just provide construction location, rock type, hole diameter and depth, drilling method and expected intensity. Our technical team will recommend the best matching bit model and drilling parameters, with multi-option benefit comparison.
Hongyue Drill provides a standard warranty period of 6-12 months for all products. The warranty covers abnormal damage caused by manufacturing defects or material quality issues. During the warranty period, we provide free repair or replacement after technical confirmation. Normal wear, damage caused by improper operation, or use beyond recommended parameters are not covered. After warranty, customers still enjoy discounted repair services and free technical consultation.
Contact us by phone 139-3852-9153 (8:30-17:30 workdays, leave message off-hours), email 1119415405@qq.com (with photos/videos preferred), scan WeChat QR code on the right sidebar, or fill in the form below. We promise response within 1 hour for routine issues and preliminary solution within 24 hours for complex issues.
Whether for drill bit selection, troubleshooting or repair/rebuild needs, submit your information and we will contact you within 24 hours.
