.news-article, .news-article * { box-sizing: border-box; } .news-article { max-width: 1080px; margin: 0 auto; padding: 16px 20px; color: #333; background: #fff; font-family: "Public Sans", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.75; } .news-article h2 { margin: 26px 0 12px; padding: 8px 13px; border-left: 3px solid #d9aaaa; border-radius: 5px; background: #fcfcfc; color: #990000; font-size: 20px; line-height: 1.45; } .news-article p { margin: 0 0 14px; } .news-article strong { color: #333; } .news-article .news-media { margin: 18px 0 22px; text-align: center; } .news-article .news-media img { display: block; width: 56%; max-width: 560px; height: auto; margin: 0 auto; border-radius: 7px; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14); } @media (max-width: 640px) { .news-article { padding: 12px; font-size: 15px; } .news-article h2 { margin-top: 22px; font-size: 18px; } .news-article .news-media img { width: 100%; max-width: 100%; } } In the JCDRILL workshop, a long welded steel assembly sits on a row of rollers at the entrance to a shot blast machine. The beams and brackets have already been welded together. Before the assembly can be powder coated, the exposed steel needs to be cleaned and given a surface texture that helps the coating adhere. For these welded drilling rig assemblies, we use roller conveyor shot blasting. The conveyor supports the assembly and carries it through the blast chamber. This setup is well suited to long steel components with large exposed surfaces. How the Roller Conveyor Shot Blast Machine Works As the assembly moves through the enclosed chamber, spinning blast wheels propel abrasive media against the steel. The impact removes surface rust and mill scale, the oxide layer that can form during hot rolling. It also leaves a pattern of small peaks and valleys in the steel. This texture is known as the surface profile. The position of the assembly on the conveyor matters. A broad steel face is relatively easy to expose to the abrasive stream. The area behind a bracket or inside a recess is harder to reach because another part of the assembly can block the stream. Depending on the shape of the part, these areas may need extra attention before coating. The process has two distinct goals: surface cleanliness and a suitable surface profile. Cleanliness describes what has been removed from the steel. The profile describes the texture left behind. A part may look clean from a distance, but its appearance alone does not tell you whether the surface has the right texture for coating. Loose dust and abrasive also need to be cleared away before the powder is applied. Why the Steel Is Shot Blasted Before Powder Coating When powder coating is applied over loose rust or scale, it can adhere to that layer instead of the steel underneath. If the layer comes loose, the coating can come away with it. Shot blasting removes material that can interfere with adhesion and gives the coating a textured surface to bond to. After application and curing, the powder forms a protective layer over the steel. Preparing the surface helps that layer adhere more consistently across broad faces and around welded joints. It also contributes to a more even appearance on the finished part. The coating is visible on the completed rig, but how well it bonds depends in part on the condition of the steel underneath. How Shot Blasting Compares With Other Methods Air blasting: Both wheel blasting and air blasting can be used to clean and texture steel. The difference is how the abrasive is propelled. A wheel blast machine uses spinning wheels; an air blast system uses compressed air and a nozzle. A nozzle can be aimed at a particular recess or weld area, which makes air blasting useful for targeted work. A roller conveyor machine is better suited to feeding long assemblies through an enclosed chamber and treating broad exposed surfaces as they pass through. Grinding and wire brushing: A grinder is useful for dressing a weld or removing a burr. A powered wire brush can remove loose rust from a small area. These tools work where they make direct contact with the steel, so they are useful for local work or touch-ups. For a long assembly with several faces, brackets and joints, conveyor blasting treats a much larger area in one operation. Shot peening: Shot peening also uses particles that strike the metal, but its purpose is different. It is a controlled process that introduces compressive stress near the surface to improve fatigue resistance in suitable components. The operation shown in our workshop is shot blast cleaning: its job is to remove rust and scale and prepare the steel for powder coating. Stress relief of a welded assembly is a separate manufacturing operation. A Look at the Process in Our Workshop The workshop video shows a welded drilling rig assembly on the roller conveyor at the blast chamber. The close-up photo gives a different view of the workpiece: the weld bead and the texture of the bare steel beside it. Both show a stage that is easy to miss once the rig is fully assembled and coated. For these steel assemblies, shot blasting is the step between welding and powder coating that prepares the surface for the finish. Its job is straightforward: remove what could weaken the bond and leave the steel ready for the coating that will protect it.

.news-article, .news-article * { box-sizing: border-box; } .news-article { max-width: 1080px; margin: 0 auto; padding: 16px 20px; color: #333; background: #fff; font-family: "Public Sans", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.75; } .news-article h2 { margin: 24px 0 12px; padding: 8px 13px; border-left: 3px solid #d9aaaa; border-radius: 5px; background: #fcfcfc; color: #990000; font-size: 20px; line-height: 1.45; } .news-article p { margin: 0 0 14px; } .news-article a { color: #990000; text-decoration: underline; text-underline-offset: 2px; } .news-article .news-video { margin: 16px 0 22px; } .news-article .news-video video { display: block; width: 100%; max-width: 760px; height: auto; margin: 0 auto; border-radius: 7px; background: #fcfcfc; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14); } .news-article .news-photo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 16px 0 22px; } .news-article .news-photo-grid img { display: block; width: 100%; height: auto; border-radius: 7px; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14); } @media (max-width: 640px) { .news-article { padding: 12px; font-size: 15px; } .news-article h2 { margin-top: 21px; font-size: 18px; } .news-article .news-photo-grid { gap: 9px; } } Beijing Jincheng Mining Technology Co., Ltd. (JCDRILL) took part in MiningMetals Uzbekistan 2026, held from October 27 to 29 at UZEXPOCENTRE in Tashkent. The exhibition gave our team an opportunity to introduce our drilling equipment to customers in Central Asia and speak with mining professionals and potential partners in person. Meeting Customers in Tashkent At our booth, we shared product information on five types of equipment: water well drilling rigs, blast hole drilling rigs, core drilling rigs, reverse circulation (RC) drilling rigs and solar pile drilling rigs. These machines serve different applications, from water well construction and mineral exploration to quarrying, infrastructure work and solar farm installation. One of our goals in Tashkent was to help customers who were new to JCDRILL understand what each type of rig is designed to do. Speaking face to face gave our team time to explain the differences between drilling methods, answer questions about the equipment and learn more about the projects visitors were planning. It was also a chance to start conversations with companies that had not worked with us before. Thank you to everyone who visited our booth and took the time to speak with us. We appreciated hearing about your projects and what you look for when choosing drilling equipment. Meet JCDRILL at The Mining Show 2026 in Dubai JCDRILL will next exhibit at The Mining Show 2026 on November 16–17 at the Dubai World Trade Centre, in Sheikh Saeed Halls. We invite customers and partners to visit our booth and discuss their upcoming drilling projects with our team. If you are planning a water well, mineral exploration, blast hole drilling or solar installation project, tell us about the work you need to do. We can walk through the relevant rig options with you and answer questions about drilling methods and equipment configurations. If we met in Tashkent and you’ll also be in Dubai, we’d be glad to continue the conversation there. About JCDRILL Beijing Jincheng Mining Technology Co., Ltd. supplies drilling rigs and related equipment to customers worldwide. Its product range includes water well, blast hole, core, reverse circulation and solar pile drilling rigs for mining, water resource development, infrastructure and renewable energy projects.

.news-article, .news-article * { box-sizing: border-box; } .news-article { max-width: 1080px; margin: 0 auto; padding: 18px 20px; color: #333; background: #fff; font-family: "Public Sans", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.75; } .news-article p { margin: 0 0 14px; } .news-article h2 { margin: 32px 0 16px; padding: 9px 14px; border-left: 4px solid #990000; border-radius: 6px; background: #faf5f5; color: #990000; font-size: 21px; line-height: 1.45; } .news-article h3 { margin: 22px 0 10px; padding-left: 11px; border-left: 2px solid #d9aaaa; color: #990000; font-size: 17px; line-height: 1.5; } .news-article ul { margin: 10px 0 18px; padding: 14px 18px 14px 38px; border-radius: 6px; background: #fcfcfc; } .news-article li { margin: 4px 0; padding-left: 3px; } .news-article a { color: #990000; text-decoration: underline; text-underline-offset: 2px; } .news-article .news-image { margin: 18px 0 22px; text-align: center; } .news-article .news-image img { display: inline-block; max-width: 100%; height: auto; border-radius: 7px; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14); vertical-align: middle; } .news-article .news-table-wrap { width: 100%; margin: 14px 0 20px; overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 6px; } .news-article table { width: 100%; min-width: 620px; border-collapse: collapse !important; border-spacing: 0 !important; border: 0 !important; font-size: 15px; } .news-article th, .news-article td { padding: 10px 12px; border: 1px solid #e8e1e1; text-align: left; vertical-align: top; } .news-article th { background: #990000; color: #fff; font-weight: 600; } .news-article tbody tr:nth-child(even) td { background: #fcfcfc; } .news-article .process-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 18px; padding: 0; list-style: none; } .news-article .process-list li { flex: 1 1 175px; margin: 0; padding: 9px 12px; border-radius: 6px; background: #faf5f5; color: #444; } @media (max-width: 640px) { .news-article { padding: 12px; font-size: 15px; } .news-article h2 { margin-top: 26px; font-size: 19px; } .news-article .process-list { display: block; } .news-article .process-list li { margin: 6px 0; } } Early-stage mineral exploration often begins with a practical challenge: prospective geology lies beneath cover, targets extend across a large area, and drilling budgets are limited. Exploration teams need subsurface information to decide where further investment is justified. Air core drilling, also written as aircore or AC, is a drilling method that uses a rotating blade bit and compressed air to carry sample material to the surface through an inner tube. Its effectiveness depends on more than drilling speed. Sample recovery, the geological questions being asked, and the point at which another drilling method is needed all matter. 1. What Is Air Core Drilling? Air core drilling uses rotary action to cut through the ground. Compressed air helps clear the hole and transports cuttings through an inner tube to the surface for collection. Technical reference: Alcoa Technical Report Summary Aircore typically produces chips, particles, and fines rather than intact core. These samples can help identify lithology, weathering, alteration, and geochemical anomalies, but provide limited evidence of original rock fabric, fractures, and vein geometry. 2. How Aircore Works: Cutting and Sample Transport The blade bit and the airflow perform two different functions. The blade bit uses rotary torque and axial load to cut the formation. Air clears the hole and transports the cuttings. The blade bit cuts the formation cuttings are generated airflow carries them into the inner tube the sample returns to the surface material is collected, split, and logged by depth interval. Aircore is generally suited to weathered or softer formations. Hard, competent rock can make drilling more difficult. Performance also depends on the drilling system and site conditions; no single factor determines whether the method will work well. 3. The Value of Sampling Beneath Cover Aircore drilling helps exploration teams investigate geology beneath cover and gather information across a target area. The results can help teams decide where follow-up drilling should be focused. Questions an aircore programme can help investigate include: How thick is the cover sequence? How does the weathering profile change with depth? Which lithologies and alteration features occur beneath cover? At what geological horizon does an anomaly appear? Does the anomaly continue between neighbouring holes? Where should follow-up drilling be concentrated? Considering results across multiple holes can reveal patterns in the weathering profile and help put anomalies in geological context. 4. Suitable Ground Conditions and Common Limitations Aircore can be useful in weathered and relatively easy-to-cut ground. Local geology and drilling conditions may affect penetration, sample return, and the ability to complete a hole. Ground condition Potential effect Relatively uniform, readily cut weathered material Supports steady penetration and consistent sample return Sticky clay-rich material May adhere to inner tubes and collection equipment, causing blockages and carryover Gravel, boulders, or hard bands May reduce penetration, increase wear, or cause early termination Formations with substantial air loss May reduce the airflow available to lift samples Water-bearing intervals May produce wet samples, adhesion, and splitting difficulties Fresh, competent hard rock Limits the effectiveness of conventional blade aircore drilling When a blade bit reaches material it cannot penetrate effectively, the hole may stop before the planned depth. Field example: St Barbara Exploration Report There is no universal maximum depth that applies to every aircore programme. Ground conditions, equipment configuration, and the required sample quality all affect what is achievable. 5. Why Inner-Tube Recovery Still Requires Quality Control Incomplete recovery can change sample composition If only part of the material from an interval is recovered, the sample may not represent the formation evenly. Assess the recovered quantity, particle size, and how the material relates to assay results. Wet samples can complicate transport and splitting Groundwater can make samples wet, causing material to adhere to equipment and complicating collection and splitting. Project reference: Catalyst Metals ASX Announcement Residual material can contaminate subsequent intervals Material left in the inner tube or collection equipment may carry over into a subsequent sample. Cleaning between intervals helps limit this risk. Subsampling affects representativeness Splitting and subsampling methods affect the material retained for analysis. Quality-control checks help assess whether the samples are representative of their logged intervals. 6. Aircore vs RAB, RC, and Diamond Drilling Feature Aircore Common single-wall RAB Common downhole-hammer RC Diamond drilling Main drilling action Rotary blade cutting Rotary cutting or percussion, depending on configuration Percussion combined with rotation Annular cutting to recover core Typical sample return Through an inner tube Between the drill rods and borehole wall Through an inner tube Core retained within a core barrel Typical ground suitability Unconsolidated and weathered materials Depends on bit and equipment configuration Includes harder rock formations Formations requiring core recovery Main sample form Chips, particles, and fines Cuttings Rock chips Cylindrical core Common exploration role Cover investigation and initial anomaly delineation Preliminary investigation Mineralisation testing and deeper drilling Detailed geological interpretation and structural information Aircore itself uses reverse-circulation sample return. In common usage, “RC drilling” refers to dual-wall reverse-circulation drilling using a downhole hammer. The distinction between methods involves the cutting or rock-breaking mechanism and the ground conditions each method suits, as well as the sample-return arrangement. Method definitions: Novo Resources Drilling method selection depends on the geological setting, the information required, and the purpose of the exploration programme. 7. Assessing Cost: The Price of Useful Geological Information Drilling cost is one part of an exploration programme. The usefulness of the information collected also matters when assessing the value of a drilling method. What does it cost to obtain a reliable sampling interval that supports the next exploration decision? The answer depends on project conditions, sample requirements, drilling performance, and the decisions the results need to support. 8. Designing an Aircore Programme That Supports Decisions An effective programme should establish three things before drilling begins. Define the geological objective Set out the geological questions the drilling programme is intended to investigate and the information needed to address them. Establish sample quality requirements Consider the sample quality needed for the planned logging, analysis, and interpretation, including how samples will be collected and split. Plan the follow-up pathway Decide how results will inform the next stage of exploration. Incomplete recovery, multi-metre composite samples, and other sampling considerations should be evaluated in relation to the intended interpretation. 9. Interpreting Aircore Results Responsibly An isolated result does not establish the size of a mineralised zone. Downhole length does not necessarily represent true thickness, and an anomaly needs to be interpreted in its geological context. Aircore results are most useful when considered alongside sample quality, geological logging, neighbouring holes, and other available exploration information. Conclusion Aircore drilling offers a way to investigate geology beneath cover and collect samples across a target area. Its value depends on whether the method suits the ground conditions and whether the recovered samples are adequate for the geological questions being asked. Understanding the method’s capabilities and limitations helps exploration teams interpret results and plan appropriate follow-up work.

.jcd1000-shipment, .jcd1000-shipment * { box-sizing: border-box; } .jcd1000-shipment { max-width: 1080px; margin: 0 auto; padding: 16px; color: #333; background: #fff; font-family: "Public Sans", Helvetica, Arial, sans-serif; font-size: 15px; line-height: 1.75; } .jcd1000-shipment p { margin: 0 0 14px; } .jcd1000-shipment .intro, .jcd1000-shipment .closing { margin-bottom: 18px; padding: 15px 18px; background: #faf5f5; border-left: 4px solid #990000; border-radius: 6px; } .jcd1000-shipment .section-title { margin: 24px 0 12px; padding: 9px 13px; color: #990000; background: #faf5f5; border-left: 4px solid #990000; border-radius: 6px; font-size: 19px; line-height: 1.45; } .jcd1000-shipment .text-block { margin-bottom: 16px; padding: 15px 18px; background: #fcfcfc; border-radius: 6px; } .jcd1000-shipment .text-block p:last-child { margin-bottom: 0; } .jcd1000-shipment .article-image { margin: 16px auto 20px; text-align: center; } .jcd1000-shipment .article-image img { display: block; width: auto; max-width: 100%; height: auto; max-height: 580px; margin: 0 auto; border-radius: 7px; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12); } .jcd1000-shipment .spec-list { margin: 0 0 18px; padding: 0; list-style: none; } .jcd1000-shipment .spec-list li { margin: 0 0 7px; padding: 9px 13px; background: #fcfcfc; border: 1px solid #f0e8e8; border-radius: 5px; } .jcd1000-shipment .spec-list strong { color: #990000; } @media (max-width: 600px) { .jcd1000-shipment { padding: 12px; font-size: 14px; } .jcd1000-shipment .intro, .jcd1000-shipment .closing, .jcd1000-shipment .text-block { padding: 13px 14px; } .jcd1000-shipment .section-title { margin-top: 20px; font-size: 18px; } } Four JCDRILL JCD1000 diamond core drilling rigs have been loaded into two 40-foot high-cube containers and shipped to Africa by sea. The rigs were prepared with hydraulic rod-handling equipment and separate hoisting systems for drill pipes and core retrieval. Configuration for Core Drilling Each JCD1000 is powered by a 132 kW six-cylinder Cummins diesel engine. Rated drilling depths are 500 meters with HQ tooling and 1,100 meters with NQ tooling, depending on ground conditions and drilling configuration. The rigs feature a 6.6-meter extended mast for handling 3-meter drill rods and support drilling angles from 45° to 90°. Each unit is equipped with two winches. The main winch handles drill pipes, while the wireline winch retrieves the inner tube containing the core sample. This arrangement allows core retrieval without pulling the full drill string out of the hole. Double hydraulic clamps hold the drill pipes in place, while a hydraulic wrench assists with making and breaking rod connections during installation and removal. Hydraulic System and Controls The JCD1000 combines the drill head, feed system, hoisting equipment and clamps in a hydraulically operated system. An integrated valve block and simplified hydraulic circuit help keep the system compact and accessible for maintenance. Rotation speed can be adjusted to suit drilling requirements. With loading complete, all four rigs are now on their way to Africa.

.jrc300-delivery, .jrc300-delivery * { box-sizing: border-box; } .jrc300-delivery { max-width: 1080px; margin: 0 auto; padding: 20px 16px; color: #333; background: #fff; font-family: "Public Sans", Helvetica, Arial, sans-serif; font-size: 15px; line-height: 1.8; } .jrc300-delivery p { margin: 0 0 16px; } .jrc300-delivery .intro, .jrc300-delivery .closing { padding: 18px 20px; background: #faf5f5; border-left: 4px solid #990000; border-radius: 6px; } .jrc300-delivery .story-block { margin: 20px 0; padding: 20px; background: #fcfcfc; border-radius: 7px; } .jrc300-delivery h2 { margin: 28px 0 15px; padding: 11px 15px; color: #990000; background: #faf5f5; border-left: 4px solid #990000; border-radius: 6px; font-size: 20px; line-height: 1.45; } .jrc300-delivery .article-image { margin: 22px 0; } .jrc300-delivery .article-image img { display: block; width: 100%; max-width: 850px; height: auto; margin: 0 auto; border-radius: 7px; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14); } .jrc300-delivery .spec-list { margin: 0 0 20px; padding: 0; list-style: none; } .jrc300-delivery .spec-list li { margin: 0 0 9px; padding: 11px 15px; background: #fcfcfc; border: 1px solid #f0e8e8; border-radius: 6px; } .jrc300-delivery .spec-list strong { color: #990000; } @media (max-width: 600px) { .jrc300-delivery { padding: 14px 12px; font-size: 14px; } .jrc300-delivery .story-block { padding: 15px; } .jrc300-delivery h2 { margin-top: 23px; font-size: 18px; } } A JRC300 reverse circulation drilling rig has been delivered to a customer in Central Asia after modifications and an on-site factory inspection. The inquiry was received on September 26, and the customer took delivery on October 14 following customs clearance. The customer was looking for an RC drilling rig with a maximum drilling depth of 300 meters. With a JRC300 available in stock, our team reviewed the required modifications with the customer before starting work. After receiving the deposit on September 29, we began preparing the accessories and modifying the rig to the agreed requirements. Factory Inspection and Shipment The customer visited our factory on October 7, during China’s National Day holiday, to inspect and test the machine. Following the inspection, the customer approved the rig and completed the balance payment on October 8. Our team then arranged shipment with the freight forwarder, and the rig was loaded onto a truck on the afternoon of October 9. We also prepared and provided the documents required for customs clearance. The JRC300 arrived at its destination in Central Asia on October 14, completed customs clearance and was handed over to the customer. JRC300 Specifications The JRC300 supports reverse circulation hammer drilling and conventional direct circulation drilling. Key specifications include: Maximum drilling depth: 300 m Drilling methods: DTH and reverse circulation (RC) Rotation torque: 4,800–9,600 N·m Engine: 74 kW Cummins diesel engine Support system: Four hydraulic support legs Undercarriage: Crawler chassis Having the rig in stock allowed modification work to begin promptly after the deposit was received. Coordination between the workshop, customer and freight forwarder kept inspection, dispatch and customs documentation moving through to delivery.

.diamond-core-guide, .diamond-core-guide * { box-sizing: border-box; } .diamond-core-guide { max-width: 1080px; margin: 0 auto; padding: 20px 16px; color: #333; background: #fff; font-family: "Public Sans", Helvetica, Arial, sans-serif; font-size: 15px; line-height: 1.8; } .diamond-core-guide p { margin: 0 0 16px; } .diamond-core-guide .intro { padding: 18px 20px; background: #faf5f5; border-left: 4px solid #990000; border-radius: 6px; } .diamond-core-guide .section-title { margin: 28px 0 15px; padding: 11px 15px; color: #990000; background: #faf5f5; border-left: 4px solid #990000; border-radius: 6px; font-size: 19px; line-height: 1.45; } .diamond-core-guide .content-block { margin-bottom: 18px; padding: 18px 20px; background: #fcfcfc; border-radius: 7px; } .diamond-core-guide .content-block p:last-child { margin-bottom: 0; } .diamond-core-guide .point-list { margin: 0; padding: 0; list-style: none; } .diamond-core-guide .point-list li { position: relative; margin: 0 0 8px; padding: 10px 14px 10px 30px; background: #fff; border: 1px solid #f0e8e8; border-radius: 6px; } .diamond-core-guide .point-list li::before { content: ""; position: absolute; top: 18px; left: 13px; width: 6px; height: 6px; background: #990000; border-radius: 50%; } .diamond-core-guide .article-image { margin: 20px 0 24px; } .diamond-core-guide .article-image img { display: block; width: 100%; max-width: 650px; height: auto !important; margin: 0 auto; border-radius: 7px; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14); } .diamond-core-guide .image-pair { display: flex; align-items: center; justify-content: center; gap: 22px; margin: 22px 0; padding: 16px; background: #fcfcfc; border-radius: 7px; } .diamond-core-guide .image-pair img { display: block; width: 100%; max-width: 337px; height: auto !important; border-radius: 7px; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14); } @media (max-width: 650px) { .diamond-core-guide { padding: 14px 12px; font-size: 14px; } .diamond-core-guide .section-title { margin-top: 23px; font-size: 18px; } .diamond-core-guide .content-block { padding: 14px 15px; } .diamond-core-guide .image-pair { flex-direction: column; gap: 16px; } } Choosing the right diamond core drilling rig depends on several factors, including the type of drilling project, geological conditions, depth requirements, and budget. Here’s a step-by-step guide to help you select the best rig for your needs Determine the Drilling Purpose 1. Exploration drilling (mineral, geotechnical, oil/gas) 2. Construction drilling (concrete, reinforced structures) 3. Water well drilling 4. Scientific/research drilling (deep core sampling) 5. Grade control(GC) drilling rig(RC drilling rig) Consider Drilling Depth & Diameter 1. Depth: (1) Shallow holes (0–100m): Light-duty rigs (2) Medium-depth (100–500m): Mid-sized rigs (3) Deep drilling (500m+): Heavy-duty rigs with high torque 2. Core Diameter: (1) Small (BQ/NQ sizes: 47–63mm) (2) Large (HQ/PQ sizes: 85–122mm) Power Source & Mobility 1. Electric: Best for indoor construction (low noise, no fumes) 2. Hydraulic: High torque, suitable for tough rock formations 3. Diesel: Portable, ideal for remote locations 4. Track-mounted vs. Truck-mounted: Choose based on terrain Rock Hardness & Formation Type 1. Soft to medium rock (limestone, sandstone): Standard diamond bits 2. Hard rock (granite, basalt): High-quality impregnated diamond bits 3. Fractured/abrasive formations: Use surface-set diamond bits Rig Features to Look For 1. Rotation speed (RPM): Adjustable for different formations 2. Torque capacity: Higher torque for deeper/harder drilling 3. Auto-feed system: Ensures consistent drilling pressure 4. Core recovery system: Important for geological sampling 5. Stability & rig weight: Heavy rigs reduce vibration in deep drilling Final Recommendation 1. For mining/exploration: Choose a hydraulic or diesel-powered rig with high torque. 2. Construction/core sampling: A compact electric rig. 3. Deep scientific drilling: A heavy-duty drilling rig with auto-feed. Would you like recommendations based on a specific project type?