Rotary drilling rig JINT SD22 Precise alignment with holes

1、 Core power and hydraulic advantages

Strong torque power head: With an output torque of 220kN · m and a speed of 8-30r/min, it has strong penetration through hard rocks, pebbles, and moderately weathered formations, reducing the risk of drilling jamming and machine holding.
Efficient power system: equipped with Cummins QSL9 engine, rated power of 221kW/1850rpm, sufficient power reserve, continuous construction without losing speed.
Intelligent hydraulic matching: dual pump flow rate of 2 × 288L/min, pressure of 33MPa, dynamically adjusting power output, balancing drilling efficiency and fuel consumption, saving more than 15% energy compared to similar models.

2、 Structural and stability advantages

Heavy duty chassis design: The entire machine weighs 64 tons (excluding drilling tools), with strong anti overturning ability and more stable deep hole operation.
Long main arm and high mast: working height 22040mm, maximum drilling depth up to 60 meters, suitable for high-rise buildings and bridge deep piles.
Mechanical clearance control: key transmission precision machining, releasing working stress, reducing strong rock fatigue damage, and making continuous hard rock operations more durable.

3、 Construction efficiency advantage

Fast drilling speed: Combined with high torque and high speed, the daily footage is 30% -50% more than that of small-sized machines, and the construction period is more controllable.
Strong hoisting performance: the maximum lifting force of the main hoist is 200kN, with a speed of 60m/min, and the auxiliary hoist is 75kN, with high efficiency in lifting and lowering the drill and cage.
Good pore quality: the pore wall is regular, there is less sediment, and the pile side friction and end bearing force are more guaranteed.

4、 Multi functional and economic advantages

One machine for multiple purposes: capable of drilling, coring, and infusion, suitable for various construction methods such as rotary drilling, short spiral drilling, and bottom expansion.
Flexible transition: Medium sized body, self-propelled tracks, easy disassembly and transportation, suitable for frequent transitions across multiple construction sites.
Low maintenance cost: The hydraulic system is mature and reliable, with fast supply of localized accessories and better total cost of ownership (TCO).
Environmental compliance: Low noise, low vibration, mud usage is only 1/10-1/20 of traditional processes, and the site is cleaner.

5、 Brand and service advantages

Domestic veteran: Jintai was founded in 1921, with mature underground engineering equipment technology and stable reputation.
Wide after-sales network: Fast domestic service response, complete accessories, and convenient maintenance.
Outstanding cost-effectiveness: Performance close to international brands, lower price and usage costs, suitable for projects with an annual usage time of<1000 hours