YTR306HE Range-Extended Electric Rotary Drilling Rig
YTR306HE Range-Extended Electric Rotary Drilling Rig manufactured by Yutong Heavy Industries.
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Product Overview
The YTR406HE keeps penetration on schedule through gravels and weathered rock with 2800 mm of diameter and 406 kN·m of torque, backed by 260 kW of installed power matched to winch and crowd loads.
69/106
Key Dimension
406
Power / Torque
6～21
Performance Metric
Performance Feature
Drills 2800 mm diameter holes, which covers most production pile and diaphragm-wall specifications.
406 kN·m of rotary torque is held at depth without stalling in gravels and weathered rock.
Technical Parameters
| Max Drilling Diameter (mm) | 2800 |
|---|---|
| Max Depth (4/6 sections) (m) | 69/106 |
| Max Output Torque (kN·m) | 406 |
| Rotation Speed (rpm) | 6～21 |
| Power (kW) | 260 |
| Crowd Force (kN) | 340 |
| Pulling Force (kN) | 400 |
| Stroke (mm) | 6000 |
| Max Hoisting Capacity (kN) | 420 |
| Max Speed (m/min) | 70 |
| Wire Rope Diameter (mm) | 40 |
| Power (kW) | 260 |
| Max Hoisting Capacity (kN) | 100 |
| Max Speed (m/min) | 70 |
| Wire Rope Diameter (mm) | 20 |
| Total Track Length (mm) | 6675 |
| Expanded Width (mm) | 5000 |
| Retracted Width (mm) | 3620 |
| Track Width (mm) | 800 |
| Range Extender Model | L9CS4 360C |
| Range Extender Power (kW) | 264 |
| Forward/Backward (°) | 4/90 |
| Left/Right (°) | ±3 |
| Overall Height (mm) | 28100 |
| Operating Weight (t) | 139 |
| Transport Width (mm) | 3620 |
| Transport Height (mm) | 3542 (excluding track frame, crowd cylinder)3725 (including track frame, excluding crowd cylinder) |
| Standard Drill Pipe Specification | JSφ580-4X18m-250B |
| Max Length Drill Pipe Specification | JSφ580-4X19m-250B (Optional) |
About the YTR406HE Range-Extended Electric Rotary Drilling Rig
The YTR406HE rotary drilling rig uses a range-extended electric driveline and is rated for the rated mm of diameter with the rated kN·m of rotary torque on the rated kW of installed power. Yutong sizes the rotary drive, crowd and winch together so the rig holds torque at depth through gravels and weathered rock rather than trading penetration for boom size.
The mast, rod handling and winch are built as a matched system: rod changes are sequenced so the crew keeps penetration on schedule, and the crowd and rotary drive are protected against stall loads in mixed ground. Load tests and torque calibration are run on every unit before it leaves the factory.
Selecting the YTR406HE comes down to bore diameter, depth and the ground profile on site. Yutong works from the tender drawings to confirm diameter, depth and torque, then matches the rig, rods and tooling to the contract, with spare parts and field support available through the global service network.
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View DetailsEngineering & Application Notes
The YTR406HE drills the rated mm diameter bores with the rated kN·m of rotary torque where the ground changes: the drive system is mapped so torque is available at depth without stalling the rotary head, and the rated kW of installed power covers winch, crowd and rotation together. Piling contractors use the rig where the soil report shows gravel lenses or weathered rock, because it keeps penetration rather than tripping the breaker.
Electric drive for emission-limited sites
The YTR406HE electric-drive rig answers site emission rules that ban diesel plant inside city excavation envelopes. The electric rotary and crowd keep the same torque band while cutting exhaust and fuel logistics on site, and the power delivery is flat across the working range so the tool sees no voltage sag on the hardest metres. Foundation contractors on metro and building cores specify the HE class where the tender requires low-emission plant.
Frequently Asked Questions
What is the maximum drilling depth of the YTR406HE Range-Extended Electric Rotary Drilling Rig?
The drilling depth depends on the specific configuration and mast length selected. Yutong rotary drilling rigs are available in configurations ranging from approximately 30 meters for small urban models to over 100 meters for large deep-pile machines. Contact our engineering team for exact specifications for your project requirements.
What ground conditions can this rig handle?
Yutong rotary drilling rigs are designed to handle a wide range of strata including clay, sand, silt, gravel, and moderately weathered rock. The appropriate drilling tool (auger, bucket, core barrel, or DTH hammer) should be selected based on the specific ground conditions encountered at your site.
Is the YTR406HE Range-Extended Electric Rotary Drilling Rig suitable for urban construction?
Yes, especially the electric and range-extended models. These produce zero local emissions and significantly lower noise levels compared to diesel rigs, making them ideal for urban core projects near residential areas, hospitals, and schools where environmental regulations are strict.
What is the lead time for delivery?
Standard models typically have a lead time of 30-60 days from order confirmation, depending on configuration and shipping destination. Customized options and special tooling may require additional time. We export to over 60 countries worldwide with reliable logistics partners.
What after-sales support does Yutong provide?
Yutong provides comprehensive after-sales support including spare parts supply, operator training, and remote technical assistance. Our global service network covers major markets, and we can dispatch engineers to project sites for commissioning and maintenance when required.
Can the rig be customized for specific project requirements?
Absolutely. Yutong offers customization options including extended masts, specialized drilling tools, cabin configurations, and telematics systems. Our engineering team works directly with customers to match the machine to specific pile diameters, depths, and ground conditions.
Does Yutong export to my country?
Yutong Heavy Industries exports construction machinery to over 60 countries across Asia, Africa, the Middle East, South America, and Eastern Europe. We have established dealer and service networks in major markets. Contact us to confirm availability in your region.