300 Meters Depth Pneumatic Borewell Machine Customized Rocky Hard Stone Strong

Product Details:

Place of Origin:	China
Brand Name:	ShiTan
Certification:	ISO
Model Number:	ST-300

Payment & Shipping Terms:

Minimum Order Quantity:	1 set
Packaging Details:	standard export packing
Delivery Time:	7-10 days
Payment Terms:	T/T, Western Union
Supply Ability:	5000 sets per year

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Detailed Product Description

Product Name:	300 Meters Depth Customized Rocky Hard Stone Strong Pneumatic Borewell Machine	Drilling Depths:	300 Meters
Place Of Origin:	China (Mainland)	Model Numbe(m):	ST-300
Certification:	ISO,CE,SGS,	Open Hole Caliber:	75m'm
Warranty:	1 Year	Material:	Steel
Condition:	New	OEM:	Customized Drilling Rig
Color:	Yellow ,Red,Blue	Tech Support:	Acceptable,video Support
Highlight:	300 meters depth pneumatic borewell machine , customized pneumatic borewell machine , pneumatic bore well machine

300 Meters Depth Pneumatic Borewell Machine Customized Rocky Hard Stone Strong

Product Specifications

Attribute	Value
Product Name	300 Meters Depth Customized Rocky Hard Stone Strong Pneumatic Borewell Machine
Drilling Depths	300 Meters
Place Of Origin	China (Mainland)
Model Number	ST-300
Certification	ISO, CE, SGS
Open Hole Caliber	75mm
Warranty	1 year
Material	Steel
Condition	New
OEM	Customized Drilling Rig
Color	Yellow, Red, Blue
Tech Support	Acceptable, video support

Product Overview

The ST-300 Pneumatic Borewell Machine is designed for water well drilling with a maximum depth of 300 meters and hole diameter of 300mm. Ideal for industrial and civil drilling applications, including geothermal drilling, this rig features compact structure, fast advancing, mobility, and wide application range.

Technical Specifications

Parameter	Value
Model	ST 300
Dimension	590020002850mm
The hole diameter	140-325mm
Drilling depth	300m
One-time advance length	3m
Walking speed	2.5KM/H
Climbing angles	30
Power	84KW
Using air pressure	1.7-3.3MPA
Air consumption	17-35cubic meter/min
Drill pipe length	2 meter or 3 meter
Drill pipe diameter	102mm, 89mm
Rig lifting force	20T
Swing speed	55-115rpm
Swing torque	6200-8500N.m

Key Features

Automatic telescopic rig supported by two high-strength oil cylinders with hydraulic valve control for safe, reliable, and efficient operation
Rubber crawler chassis reduces weight, noise, vibration, and fuel consumption while protecting road surfaces
Hydraulic high outriggers for drilling rig leveling, truck loading/unloading, and auxiliary support
24V electric start diesel engine reduces operator fatigue, especially in cold conditions
Equipped with BW-160 mud pump for large flow and pressure with easy maintenance
Optional hydraulic pipe screwing machine (75-168mm) available to enhance efficiency

Drill Pipe Fracture Prevention

Primary causes of drill pipe fracture include excessive bending moment during reaming and pipe pulling back. This typically occurs when the actual guide hole curve deviates significantly from the theoretical curve, or when the reamed hole becomes irregular, creating angles between the pipe and reamer/drill pipe axis.

Operating Instructions

During operation, the pump performs reverse circulation. Atmospheric pressure causes the circulating fluid to flow from the sedimentation tank to the well bottom via the return ditch along the annular well gap. Simultaneously, the rotary table drives the drill pipe and bit for rotation drilling.