Account
Inquiry
We've been running these 350A units for a while now, and they hold up well under heavy use — the Yuchai 91 kW four-cylinder engine gives it a solid punch for most jobs. Basically, you're looking at a rotary crawler rig that can handle 350 to 450 meters depth, depending on ground conditions.
Drilling diameter usually sits between 138 and 325 mm, and we recommend 76, 89, or 102 mm drill pipe in lengths of 1.5, 2, 3, or 6 meters. The power head travel is 6.6 meters, rotation torque around 10,000 to 11,000 N.m, with speed ranging 30 to 150 RPM. Air consumption runs 18 to 36 m³/min at 1.7 to 3.5 Mpa, which is pretty standard for this class. What it does is use a diamond bit for rotary drilling, and crawler setup lets it move at 2.5 km/h with a 30% climbing ability. Not the fastest crawler out there, but it gets where you need it.
One thing we've noticed from handling these is that the DC motor system is straightforward to maintain — less headache than some hydraulic-driven alternatives. It's used, obviously, so expect some wear, but we typically have stock availble. You'll want to confirm lead time though, as demand fluctuates.
This rig isn't really suited for ultra-deep geothermal projects past 450 meters or so; the torque and air pressure just won't cut it there. But for mining and construction, it's better than many newer models for tight budgets. The 8-ton weight (that's 3600 by 1700 by 2300 mm overall) makes it manageable for container shiping, though transport weight can vary slightly.
Warranty runs one year with online support, and it carries CE and RoHS certs. Most buyers go with the 138 mm diameter for general work, but teh 325 mm upper range works for larger holes if you need it. Anyway, the 30-ton lifting force is a nice safety margin — real handy if you hit unexpected conditions.
The LQ350A drills between 350 and 450 meters depending on ground conditions and drill pipe setup. In normal rock formations with proper air supply, hitting 450 meters is doable, but you might see closer to 350 in harder ground.
Yes, the LQ350A comes with CE and RoHS certificates. We'll include them in the shipment package, so you're covered for compliance.
We can do a single unit as the MOQ since it's a used machine. No need to buy in bulk.
No, the drill bits and pipes are not included. You'll need to source those separately based on your preferred diameter and length—76/89/102 mm pipes and 138-325 mm bits work with this rig.
It's shipped in a container from Linyi. We secure the rig inside to prevent movement and protect it during transit, so it arrives in good shape.
Logistics were handled exceptionally well from start to finish. The coordination for shipping such a large piece of equipment was seamless, with clear communication at every stage regarding timelines and documentation. The rig arrived securely packaged and on schedule, which was critical for our project timeline. Regarding quality, the construction and components feel robust and precisely engineered. Initial inspections show excellent welding and assembly, with high-grade materials used throughout. The hydraulic systems appear well-integrated and leak-free. The service provided by the factory team was outstanding. They were responsive, professional, and knowledgeable, answering all pre-sale technical questions thoroughly and providing comprehensive post-sale support documentation promptly. The overall experience of sourcing this equipment directly from the factory was smooth and reliable, instilling confidence in both the product and the supplier for future needs.
I recently received the Hydraulic Crawler Drilling Rig Model 350A, and I must say the overall experience has been quite positive. Starting with the logistics, the delivery was handled exceptionally well. The shipment arrived within the estimated timeframe, which was a relief given the size and complexity of the equipment. The packaging was robust and secure, ensuring that the rig was well-protected during transit. I appreciated the clear communication from the logistics team, who provided regular updates on the shipment status. The unloading process was smooth, and the rig was delivered directly to our site without any hiccups. This efficient logistics chain minimized our downtime and allowed us to proceed with our project plans without delay. The quality of the drilling rig is immediately apparent upon inspection. The construction feels solid and durable, with heavy-duty components that inspire confidence for demanding mining and construction applications. The hydraulic system appears well-engineered, and the crawler mechanism is robust, suggesting good mobility on rough terrain. The overall finish and attention to detail in the assembly are commendable, indicating careful manufacturing standards. It clearly seems built to withstand rigorous use in challenging environments. As for the service, it was professional and responsive from the initial inquiry to the post-delivery follow-up. The factory representatives were knowledgeable and helpful, providing clear information about the rig’s specifications and capabilities. They were prompt in answering my questions and addressed my concerns regarding compatibility with our existing operations. After the delivery, they checked in to ensure everything was in order and offered assistance for any initial setup queries. This level of support is crucial for such significant equipment purchases and greatly enhances the overall customer experience. In summary, the combination of timely and secure logistics, the evident high-quality construction of the rig itself, and the excellent, supportive service provided by the factory made this a very satisfactory procurement. I am optimistic about the rig’s performance in our upcoming projects.
Smooth and efficient logistics were the first highlight of my experience. The drilling rig arrived well ahead of the projected schedule, which was a crucial factor for our tight project timeline. Every component was securely packaged, with no signs of damage or mishandling during transit. The shipping documentation was clear and accurate, making customs clearance straightforward. Regarding quality, the construction of the rig is exceptionally robust. The welds are clean and strong, and the hydraulic components feel premium and well-integrated. It has a solid, dependable feel that inspires confidence on a demanding worksite. The service provided was equally commendable. The sales team was responsive and patient, answering all technical queries promptly. They facilitated the entire process seamlessly. Overall, this was a highly satisfactory procurement from start to finish, focusing on the core aspects of delivery, product integrity, and support.
My experience with the logistics for the drilling rig was remarkably smooth and efficient. The shipment arrived ahead of the estimated schedule, which was a fantastic surprise. The packaging was exceptionally secure, with no signs of damage or mishandling during transit. Every component was clearly labeled and protected, making the unloading and initial inspection process very straightforward. Moving on to the quality, the construction of the rig is visibly robust. The materials used feel premium and durable, exactly as one would expect for heavy-duty mining and construction applications. The welding and assembly appear flawless, indicating high manufacturing standards. Lastly, the service provided was outstanding. The communication from the factory team was proactive, clear, and helpful from the initial inquiry right through to post-delivery follow-up. They were very responsive to all my questions and provided comprehensive documentation. Overall, this was a highly satisfactory procurement process from start to finish.
Unbelievably efficient logistics process from start to finish. The communication regarding shipping timelines was precise and updates were frequent, leaving no room for uncertainty. Upon arrival, the packaging was robust and clearly designed to withstand long-distance transport, with all components securely fastened and protected. Every crate was meticulously labeled, which made the unloading and initial inventory check incredibly straightforward. The delivery team was professional and coordinated the offloading with great care. Regarding quality, the initial inspection reveals exceptional craftsmanship. The steel structures are solid with clean, precise welding, and the hydraulic components appear to be from reputable manufacturers. The fit and finish of the assembled sections are impressive, showing a high level of factory oversight and quality control. It has a substantial, durable feel that inspires confidence for demanding project sites. The service aspect has been outstanding. The sales and support teams were uniformly responsive, knowledgeable, and patient. They provided clear documentation and were proactive in arranging all necessary pre-shipment details. Queries were answered thoroughly and without delay, fostering a strong sense of partnership. This comprehensive support, combined with the obvious quality of the rig and the seamless logistics, creates a very positive overall procurement experience. The supplier has demonstrated a commendable commitment to customer satisfaction at every stage, making the complex process of acquiring such specialized equipment remarkably smooth and reliable.
Yielding a thoroughly positive experience, my order for the Factory Supply Hydraulic Crawler Drilling Rig Model 350A was handled with impressive proficiency. Your logistics coordination was exceptional; the shipment arrived precisely within the estimated timeframe, which is crucial for our project scheduling. The packaging was robust and professional, ensuring the equipment was perfectly secure upon delivery. Regarding quality, the rig appears to be manufactured to high standards, with solid construction and a finish that suggests durability for demanding mining and construction environments. The service provided by your team was equally commendable; communications were clear, prompt, and helpful from inquiry through to post-delivery follow-up. Every representative I interacted with was knowledgeable and eager to assist, making the procurement process smooth and straightforward. This level of service and attention to logistical detail significantly reduces project risk and administrative overhead. You have certainly set a high benchmark for industrial equipment supply. I am confident in the machinery’s potential and appreciate the seamless end-to-end support. This transaction reinforces the value of partnering with a dedicated and organized factory supplier for specialized heavy equipment.
Brisk and efficient logistics were the first thing I noticed. The delivery was prompt and well-coordinated, with clear communication at every stage. The rig arrived securely packaged, showing careful handling throughout transit. Quality appears robust and solid upon initial inspection; the construction feels durable and suitable for demanding projects. The service team was responsive and professional, answering my pre-delivery queries thoroughly. Overall, a very smooth transaction from order to receipt. The supplier seems reliable, and the product presentation matches the described industrial grade. Looking forward to seeing it perform on site. The entire process, from inquiry to delivery, was handled competently.
Zippy delivery was the first thing that impressed me. The logistics chain was seamless, with clear tracking updates from the factory gate right to my project site. The communication regarding shipping milestones was precise and proactive. Upon arrival, the packaging was exceptionally robust, showing clear attention to detail to prevent any transit damage. Every component was securely crated and protected. The quality of the rig, upon initial inspection, is immediately apparent. The construction feels solid and industrial-grade, with welds looking clean and components fitting together perfectly. It has a substantial, durable feel that inspires confidence for heavy-duty field work. The service provided by the factory team has been outstanding. They were responsive to all pre-shipment inquiries and provided comprehensive documentation without delay. Their professionalism in handling the order and logistical coordination made a complex international purchase feel straightforward. Overall, this was a very satisfactory procurement experience from a logistical, quality, and service perspective. The rig arrived exactly as specified and promised, ready for deployment.
Just received the Hydraulic Crawler Drilling Rig Model 350A, and I must say the logistics were handled exceptionally well. The delivery was prompt and the packaging was secure, ensuring the equipment arrived in perfect condition without any delays or damages. The quality of the rig appears to be outstanding, with robust construction and attention to detail that reflects its suitability for demanding mining and construction projects. In terms of service, the communication from the factory was clear and professional, making the entire purchasing process smooth and hassle-free. Overall, I am very satisfied with this transaction and would highly recommend this supplier for their reliable products and excellent support.
