Buying a suitable hydraulic rotary drilling rig is the key to smooth foundation construction. Many global contractors and new buyers often make wrong choices when purchasing rotary piling rig and rotary drilling equipment. Unmatched models, blind price pursuit and ignored site conditions will cause low efficiency, frequent breakdowns and wasted investment. Below are 7 simple and critical buying tips to help you pick a cost-effective rotary piling machine. If you are interested, please contact YG for a discount.
Rotary Drilling Machine Parameter
| Model | YG13 | YG15 | YG16 | YG20 |
| Max.Drilling Diameter | 1000mm | 1600mm | 1500mm | 1600mm |
| Max.Drilling Depth | 13m | 15m | 16m | 20m |
| Max. Rotary torque | 50KN.m | 45kN .m | 46KN.m | 36KN.m |
| Rotary angle | 360° | 180° | 180° | 360° |
| Rotary speed | 10-45r/min | 17-45r/min | 20-46r/min | 22-43r/min |
| Dimension(m) | 3.1×1.92×3.5m | 6.8×2.27×3.2m | 10 x 2.3x 3.2 m | 9.5×2.6×3.5m |
| Weight | 9ton | 13 ton | 11 ton | 17.8 ton |
1. Match Drilling Parameters with Actual Project Needs
Never choose rotary drilling equipment only by price or appearance. All projects have fixed requirements for drilling depth, pile diameter, and geology. YG product covers 13–20m drilling depth and 1000–1600mm pile diameter, with 36–50KN·m rotary torque.
Small residential foundation projects only need shallow and small-diameter piling. Choosing a heavy high-torque rig will cause extra fuel consumption and low equipment utilization. For deep bridge piling and hard stratum construction, low-power compact machines will lead to slow drilling and drill jamming. Confirm your project parameters first to select the right hydraulic rotary drilling rig.
2. Do Not Trust Inflated Nominal Parameters blindly
Many suppliers mark attractive theoretical data on brochures, but actual working performance is unstable. The low-quality rotary piling rig has fake high torque and depth data, while its poor hydraulic system cannot sustain heavy-load continuous work.
YG rotary piling machine supports 10–46r/min adjustable rotary speed with stable and consistent output. When purchasing, do not only watch nominal parameters. Check real project cases, field working effects, and customer feedback, especially working stability in sand, clay, and weathered rock strata, to avoid inflated parameter traps.
Shocking! Rotary drilling rigs have a 14-step workflow, and 80% of engineers miss some of them. Click to see the rotary drilling rig workflow!
3. Avoid Only Chasing Low Price and Ignoring Comprehensive Cost
Most buyers prioritize low price, which is the most common purchasing mistake. Cheap rotary drilling equipment cuts corners on hydraulic motors, reducers, and structural steel. It has a low one-time cost but high hidden risks.
Inferior equipment easily suffers from oil leakage, power attenuation, and frequent failures. Construction shutdowns, repeated maintenance, and delayed projects bring huge losses. A high-quality hydraulic rotary drilling rig has reliable core parts and a low failure rate. Buyers should calculate the full-cycle cost, including purchase fee, fuel cost, and maintenance cost, instead of only comparing quotations.
4. Fully Consider Site and Transportation Adaptability
Construction site conditions directly decide whether the rotary piling rig can work normally. Many buyers buy large heavy-duty rigs blindly, failing to work in narrow urban zones, suburban yards, and rural mountain roads.
Our YG13 model is only 9 tons with a compact size, perfect for narrow sites and cross-region transportation. The YG20 heavy-duty model suits open large municipal and bridge projects. 360° rotary models fit complex multi-directional piling, while 180° rotary models adapt to linear road piling. Matching site conditions greatly improves construction flexibility and reduces transfer costs.
5. Select Models According to Local Geological Conditions
Geology is a core factor affecting drilling efficiency. Different countries and regions have different stratum structures, and universal models cannot adapt to all working conditions.
For soft soil, sand, and shale, low-speed and high-torque operation can effectively prevent hole collapse. For gravel and weathered rock, stable high power avoids drill jamming. YG rotary drilling equipment supports stepless speed adjustment and flexible torque regulation, adapting to various complex strata. Communicate local geological conditions with suppliers before ordering.
6. Attach Great Importance to Overseas After-Sales and Spare Parts Supply
For overseas buyers, after-sales service is more important than a low price. Many small manufacturers lack complete overseas service systems. Once the hydraulic rotary drilling rig breaks down, spare parts cannot be delivered in time, causing a long-term shutdown.
Reliable suppliers provide complete spare parts packages, multi-language manuals, remote debugging, and 24-hour online technical support. A stable after-sales guarantee ensures long-term stable operation of rotary piling machine. Always verify the supplier’s overseas service capacity and case experience before purchase.
Shocking! Rotary drilling rigs can be paired with 6 different pieces of equipment! Some engineers don’t even know this; anyone who sees this will benefit. Click to see the rotary drilling rig pairing options!
7. Match Rotary Angle Function with Construction Scenarios
Different rotary angle designs have different applicable scenarios, which many buyers ignore. YG13 and YG20 adopt 360° full rotation, which can drill in all directions. They are ideal for scattered urban buildings and narrow complex sites.
YG15 and YG16 are 180° rotary models, more suitable for linear projects such as highway side piles and river foundation construction. Wrong rotary function matching will reduce working flexibility, lower daily piling output, and waste equipment performance. Matching functions with scenarios maximizes the value of your rotary piling rig.
Rotary Drilling Equipment For Sale-Choose YG Machinery
Purchasing high-quality rotary drilling equipment does not mean choosing the most expensive or largest model. It requires reasonable matching of project parameters, geological conditions, site space, and after-sales resources. By avoiding the above 7 key mistakes, global buyers can select the most suitable hydraulic rotary drilling rig, reduce operating risks and investment waste, and achieve higher construction efficiency and long-term economic returns in foundation, municipal, and bridge engineering projects. If you are interested, please contact YG for a discount.