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ST350 Air‑powered Drilling Rig Machine For Large Borehole Blasting
large air drilling rig
,large water well drilling rig
,borehole air drilling rig
The ST350 Air‑powered Drilling Rig Machine is engineered for large borehole blasting operations, delivering exceptional performance and reliability in demanding conditions.
The drill rig features multiple positive speed stages with a 14-500r/min speed range and output torque of 13428-250N.m. It includes 2 reverse speeds for efficient accident handling and utilizes dual oil pumps for optimized operation—single pump for drilling and double pump confluence for lifting, minimizing power loss and reducing auxiliary time.
With an advanced structure and rational layout, the ST350 ensures easy maintenance, servicing, and repairs. Every component has been rigorously tested under extreme field conditions to guarantee dependable performance. The reinforced mast structure and high-torque hydraulic motor enable this rig to handle the most demanding borehole projects with ease, while the spacious operator platform and centralized controls ensure comfortable, precise all-day operation.
| Parameter | Specification |
|---|---|
| Drilling Depth | 350m |
| Hole Diameter | φ140-305mm |
| Advance Length per Cycle | 6.6m |
| Working Pressure | 1.7-3.0MPa |
| Air Consumption | 17-35m³/min |
| Rod Length | 1.5m, 2m, 3m, 6m |
| Rod Diameter | φ76, φ89, φ102, φ114 |
| Lifting Power | 24T |
| Rotation Torque | 8500-11000N.m |
| Rotation Speed | 40-70r/min |
| Diesel Engine | Yuchai |
| Engine Power | 85Kw/2200rpm |
| Travelling Speed | 0-2.5 Km/h |
| Climb Capacity | 30° |
| Weight | 9000kgs |
| Dimensions | 5900x2000x2850mm |
| Application | Complicated geological conditions: Rock, Mud, Sand etc. |
| Drilling Method | Top drive hydraulic rotary and propulsion, DTH Drilling or Mud Pump Drilling |
| DTH Hammer | 4", 5", 6", 8" Drill hammer or CIR110, 130, 150, 170 |
- Complete a well in 1 day – effectively shortening your construction period
- Proven quality with 10+ years of reliable service life
- Capable of drilling depths up to 1600 meters
- 20-30% diesel fuel savings for enhanced resource efficiency
- When engaging the clutch or rotating the working wheel, operate gently, evenly, and steadily
- When changing speeds, engaging horizontal/vertical axle boxes, or operating transfer handles, ensure the clutch is in separation position or the work wheel is stopped
- When using the lift, avoid pressing both left and right handlebars simultaneously
- After starting the gear oil pump, monitor oil pressure gauge and hole bottom pressure indicator responses
- During drilling, adjust hole bottom pressure gradually—avoid sudden increases or decreases
- When using the oil pressure system for rapid vertical shaft lifting (fast reversing rod), only operate under original load conditions to prevent component damage
We offer small hydraulic rigs, water well rigs, core drilling machines, engineering drills, and exploration rigs. Send us your depth, diameter, and formation details, and our engineers will recommend the optimal machine.
Our headquarters and manufacturing plant are in Jinzhou, Shijiazhuang, Hebei, China—a well-established industrial zone with efficient logistics to all major export ports.
Yes, 100% factory-direct. We have been building drilling equipment for over 20 years with ISO-certified processes and a modern production facility capable of full-cycle manufacturing.
Small hydraulic units: 5-7 days. Heavy pneumatic rigs: 7-15 days. We can fast-track critical orders—inform our team of your deadline when inquiring.
Full one-year warranty on all non-consumable components. Remote support and spare parts assistance are included.
Under normal operating and maintenance conditions, our compressors deliver 10+ years of reliable performance.
We accept T/T and transfers.
Yes—commercial invoice, sales contract, packing list, bill of lading, insurance policy, and certificate of origin are all provided as required.
24/7 online assistance. We target 48-hour turnaround on all technical issues.
Remote setup guidance is standard. Overseas engineer deployment is available for installation, commissioning, and hands-on operator training.
Located in the industrial heart of Hebei Province, our factory spans advanced production lines for drilling rig assembly, component machining, and quality inspection. With ISO certification and 20+ years of experience, we are a reliable partner for drilling contractors worldwide.
Jinzhou Shitan Machinery Equipment Co., Ltd. Main Products:
Pneumatic Drilling Rig / Air Drilling Rig(ST-180,ST-200,ST-260,ST-300,ST-350,ST-400,ST450,ST-450,ST-500, ST-600,ST-800 and other Pneumatic water well drilling Rigs.), Crawler Water Well Drilling Rig / Trailer Mounted Drilling Rig / Water Well Drilling Rig / Hydraulic Borewell Machine / Hard Rock Drilling Equipment / Diamond Core Drill Rig / Geological Drilling Rig / Soil Testing Drilling Rig / Portable Water Well Drilling Rig(ST-30,ST-50,XY-1A, XY-1B, XY-2, XY-2B,GK180, GK200, GY150, GY200 and 30 impact drill rig, ZLJ series tunnel drilling rig and other geological drilling machines)Crawler Track Undercarriage, Drilling Mud Pump(BW150,BW160,BW200,BW250,BW850 series Drilling mud pumps), Drilling Air Compressor, Water Well Drill Bits(PDC Drill Bit, Tricone Bit, DTH Button Bit), Water Well Drill Pipe, Drilling Rig Spare Parts( drilling rods , drilling rods joint , casing pipe, casing coupling, core tube, core tube coupling, lifters, automatic drop hammer, sampler, SPT tool, wrench fork, pad fork, lock joint), Track Transporter
Mrs. Anna
Manager
- Email: anna@waterwelldrillingmachine.com
- Tel: +8615511892512
- WhatsApp: 8615511892512
-
wechat:
+8615630441112
-
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