SOILMEC

SOILMEC SR-125 Blue-Tech

A heavy 496 kNm-class piling rig for large-diameter Kelly drilling, CFA, CAP/CSP, displacement piling, and selected ground-improvement applications.

Equipment inquiry

Discuss the required working method, configuration, delivery location, and project timeline with Vernep.

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Temporary SOILMEC piling drill rig image for the SR-125 Blue-Tech catalog record
SOILMEC SR-125 Blue-Tech
At a glance

Key specifications

Maximum rotary torque
496 kNm
Blue-Tech multigear rotary
Rated rotary torque
453 kNm
First gear
Maximum drilling speed
32 rpm
Rotary drilling speed
Maximum main-winch line pull
470 kN
Optional SW470 single-layer winch
Standard LDP Kelly depth
120 m / 100 m
Friction / locking Kelly
Configured LDP pile diameter
Up to 4,000 mm
Increased drilling axis and lower-mast arrangement
Equipment profile

Built around the project configuration

The SOILMEC SR-125 Blue-Tech is a 496 kNm-class piling rig built for large-diameter foundations, deep Kelly drilling, and high-capacity continuous-flight-auger work. Its configuration range covers conventional bored piles, CFA piles, cased augered and secant piles, displacement methods, and selected ground-improvement processes.

The platform combines a 470 kW power system with cylinder- and winch-crowd arrangements, removable crawler sides, and modular transport assemblies. This places it at the heavy end of the Vernep piling-rig catalog for projects where pile geometry and extraction demand exceed the working range of compact and medium-heavy rigs.
Technical data

Detailed specifications

Performance data grouped for quick review and comparison.

Rotary and large-diameter drilling

Maximum rotary torque 496 kNm
First-gear rated torque 453 kNm
Maximum drilling speed 32 rpm
Maximum spin-off speed 81 rpm
Standard Kelly depth 120 m friction / 100 m locking
Extended Kelly depth 138 m friction / 115 m locking
Standard pile diameter 3,000 mm CCS / 2,800 mm WCS
Configured pile diameter Up to 4,000 mm

CFA and CAP/CSP performance

Standard CFA 1,200 mm diameter / 34.5 m depth / 1,300 kN extraction
Special CFA 1,200 mm diameter / 38.5 m depth / 1,065 kN extraction
CAP/CSP at 900 mm 32 m auger depth / 25.8 m cased depth
CAP/CSP at 1,200 mm 28 m auger depth / 21.8 m cased depth

Crowd and winches

Cylinder crowd stroke 7,650 mm
Cylinder crowd force down / up 345 / 412 kN
Winch crowd stroke 20,430 / 23,400 mm
Winch crowd force down / up 540 / 540 kN
Standard main winch SW440 / 442 kN / 68 m/min
Optional single-layer main winch SW470 / 470 kN / 56 m/min
Auxiliary winch 132 kN / 77 m/min

Power and carrier

Engine CAT C18 ACERT
Rated output 470 kW at 1,800 rpm
Emissions configuration EU Stage V / EPA Tier 4 Final
Published LDP operating weight 125.5 t CCS / 127.7 t WCS, without Kelly bar
Undercarriage Variable-gauge telescopic unit with removable sides
Crawler overall width 3,500 mm retracted / 5,200 mm extended
Traction force 889 kN
Equipment inquiry

Match the machine to your project.

Send Vernep the required drilling method, pile diameter, target depth, ground conditions, available working height, delivery location, and project timing. We will use those details to review a suitable configuration or available unit.

Request equipment support