Full Hydraulic Portable Pneumatic Dth Machine Low Fuel Consumption

Product Summary
Full Hydraulic Portable Pneumatic DTH Machine with 400m drilling depth, Φ140-Φ350mm drilling diameter, and low fuel consumption. Features hydraulic feeding, 6M push length, 1.7-3.5MPa working air pressure, and video technical support. Compact structure, easy operation, suitable for various terrains.
Basic Properties
Place of Origin: Hebei China
Brand Name: Shitan
Certification: ISO 9001
Model Number: ST-400
Trading Properties
Minimum Order Quantity: 1 set
Price: 35000 USD-45000 USD
Payment Terms: T/T,Western Union
Supply Ability: 2000 sets/month
Product Details
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Product Name: 400 Pneumatic DTH Drilling Rig
Drilling Depth: 400m
Drilling Diameter: Φ140-Φ350mm
Dimension: 5900x2100x2850mm
Feeding Type: Hydraulic
One Push Length: 6M
Length Of Drill Pipe: 1.5m, 2.0m, 3.0m,6.0m
Drilling Pipe Diameter: Φ89, Φ102mm, Φ108mm
Weight: 9.8T
Working Air Pressure: 1.7-3.5MPa
After-Sales Service Provided: Video Technical Support
Product Description
Full Hydraulic Portable Pneumatic DTH Machine Low Fuel Consumption
This Pneumatic DTH Drilling Rig features 400 meters drilling depth and 300mm hole diameter. Our machines are designed for global application and suitable for various scenarios including deserts, swamps, grasslands, mountains, orchards, and diverse geological conditions.
ST 400 Pneumatic DTH Drilling Rig Technical Specifications
Model ST 400
Max drilling depth 400 Meters
Drilling diameter 105-325 mm
Air pressure 1.2-3.5 mpa
Rod length 3 meter
Rod diameter 89-102-114 mm
Main shaft pressure 5T
Lifting force 25T
Power head stroke 6.6M
Max rotary torque 12000 Nm
Max rotary speed 100 r/min
Secondary winch lifting force 3T
Jacks stroke 1.5m
Moving speed 2.5 km/h
Uphill angle 21° Slope
Weight of the rig 8.8T
The engine 92KW / 6 cylinder
Overall dimensions 3900*1600*2350 mm
Working condition Loose layer and bedrock
Drilling method Hydraulic rotary, down-the-hole impactor
ST 400 Pneumatic DTH Drilling Rig Advantages
  • Improves drilling efficiency and reduces labor intensity with hydraulic automatic feeding mechanism
  • Easy to operate, safe and reliable with ball clip holding mechanism or hydraulic chuck, allowing rod changes without stopping
  • Features hole bottom pressure gauge for easy monitoring of hole conditions
  • Compact structure, concentrated handle, small footprint, light weight, strong decomposition, easy to move and operate in plains and mountain areas
Frequently Asked Questions
Q1: How long can your air compressor be used?
A: Normally more than 10 years.
Q2: What are the terms of payment?
A: TT, transfer.
Q3: Can you provide us with the documents for customs clearance?
A: Of course. We will send you commercial invoice, sales contract, packing list, bill of lading (FOB or CFR, CIF terms), insurance policy (if CIF terms), and certificate of origin if you need it.
Q4: How is your customer service?
A: 24-hour online service. The 48 hour problem was solved (except in special cases).
Q5: How about your after-sales service?
A: 1. Provide customers with online installation and commissioning instructions. Well trained engineers can serve overseas (non epidemic impact).
DTH Bit Usage Guidelines
  • Select drill bits according to rock conditions (hardness, corrosion) and drill type (high wind pressure, low wind pressure). Different forms of alloy and cloth teeth are suitable for drilling different rocks
  • When installing the drill bit, gently insert the bit into the drill bit sleeve of the impactor. Do not force collision to avoid damaging the drill bit
  • Ensure sufficient air pressure on the drilling rig during rock drilling process
  • Check compressed air system for intermittent work and ensure no rock slag in the hole during drilling
  • If metal objects fall into the hole, remove immediately with magnet or other methods to avoid damaging the bit
  • Monitor hole size when replacing drill bits. If bit diameter is worn but hole not completed, avoid using new bits to prevent sticking. Complete operation with worn bits of approximately same diameter
Prevention of Drilling Hole Collapse

Preventive measures for hole collapse should meet two conditions: mud liquid column pressure = technological pore pressure; minimize water infiltration into rock and soil or water seepage around hole wall.

Prevention for Geological Factors
  • Increase mud density and mud liquid column pressure to balance formation pressure
  • Use larger ratio of mud to plastic to protect the hole
Prevention for Physical Factors
  • Start pump gradually and maintain constant tension on drill pipe to avoid sudden pressure increases and violent impact on hole wall
  • Design drilling track and reaming procedures according to underground obstacle distribution to avoid excessive curvature and rotary extrusion on hole wall
  • Control mud density and rheological properties to maintain adequate liquid column pressure and low mud return velocity
Product Images

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

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