Extra large torque SANY SR445 Rotary Drill Rig

EUltra high torque, powerful rock penetration

The rated torque is 445kN · m, and the maximum pressure of the pressurized winch is 400kN. Paired with a 377kW high-power Isuzu engine, it can easily penetrate extremely hard formations such as thick gravel layers, strongly/moderately weathered granite, limestone, etc. The rock embedding and coring efficiency far exceeds that of medium and large models in the same class.

Large aperture+ultra deep drilling, covering heavy-duty engineering

The maximum pore diameter is 3000mm; the maximum depth of the friction rod is 116m, and the machine lock rod is 95m. It is suitable for 100 meter deep hole projects such as wind power foundations, cross river and cross sea bridges, super high-rise main buildings, and large roadbed deep piles. A single device can accommodate both large diameter and ultra deep difficult pile foundations.

Dual stroke pressurization system, compatible with all working conditions

It supports 10m standard full stroke and 21m ultra long stroke free switching: short stroke efficient hard rock drilling, long stroke suitable for long casing construction in collapsible strata such as backfill, quicksand, mudflat, etc., and complex geological construction methods can be switched without replacing structural parts.

Main winch heavy-duty lifting, high construction efficiency

The maximum lifting force of the main winch is 560kN, with a maximum lifting speed of 60m/min. A single 100 meter deep pile can be completed in 10 hours at the fastest, and nearly 100 meters of footage can be constructed in a single day. The advantage of high-density rush hour projects is obvious.

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