Soilmec sr45 casing drive adapter used connect on  800mm double wall casing for bored pile foundation work

800mm casing driver used on soilmec sr45 drill rig for secant pile foundation work

800mm casing twister used on soilmec sr45 drill rig for cased bored pile foundation work

800mm casing drive adapter used on 800/720mm double wall casing match soilmec sr45 drill rig

Tianjin huachang xingye technology co ltd

Casing drive adapter (Twister) that transfers the torque from the rotary drive to the tubes column
The casing driver is attached to the cardan joint on the rotary drive and is the connecting element to the casing , if the casing drive and the casing are bolted , the casings can be rotated or extracted
Available range of diameters 620 to 2,500 mm
Featurs
 
The joints are made of 25CrMo forgings, which are wear-resistant and not suitable for deformation. The pipe body is Q345B, bolt 42CrMo material, high strength, high torque
CASINGS DRIVE ADAPTER WITH KELLY BOX
Casing Twister driven by machine rotary table







Casing drive adapter (Twister) that transfers the torque from the rotary drive to the tubes column
Casing drivers
The casing driver is attached to the cardan joint on the rotary drive and is the connecting element to the casing , if the casing drive and the casing are bolted , the casings can be rotated or extracted
Available range of diameters 620 to 2,500 mm
Featurs
 The joints are made of 25CrMo forgings, which are wear-resistant and not suitable for deformation. The pipe body is Q345B, bolt 42CrMo material, high strength, high torque
CASINGS DRIVE ADAPTER WITH KELLY BOX
Casing Twister driven by machine rotary table

On a Soilmec SR-45 (including the ADV and Blue Tech versions), the casing drive adapter (or casing driver) is the critical interface that transfers the rig's rotational torque and downward crowd force directly into the casing string.

Because the SR-45 is a highly versatile, mid-sized rig with a maximum torque of 185 kNm, its casing adapters are engineered to optimize this power without overloading the mast geometry.

Mounting Options for the SR-45

Depending on your specific drilling setup and depth requirements, there are two primary configurations for a casing drive adapter on this rig:

1. Direct Flange-Mounted Casing Driver (Rotary Mounted)

How it works: This adapter bolts directly to the underside flange of the SR-45’s rotary table.

Advantages: It provides the most efficient transfer of the rig’s full 185 kNm torque and its high crowd/extraction forces (whether using the Cylinder Crowd System [CCS] or Winch Crowd System [WCS]).

Best for: Standard cased boreholes where the maximum casing length stays within the mast's clear clearance (typically up to 15 meters depending on configuration).

2. Kelly Bar-Driven Adapter (Casing Twister / Spinner)

How it works: This adapter features a female Kelly box (typically matching standard Soilmec sizes like $130 \times 130\text{ mm}$ or $200 \times 200\text{ mm}$) that slides onto the terminal joint of the Kelly bar.

Advantages: Allows you to drive casing deeper into the borehole than the stroke of the rotary table allows, and makes it easier to quickly switch between drilling tools and casing operations.

Best for: Projects requiring temporary casing placement through unstable upper layers before drilling deeper with a friction or locking Kelly bar.

Key Technical Specifications & Compatibility

Diameter Range: While the SR-45 can handle tools up to 1500 mm below the mast, standard cased applications along the mast usually range from 600 mm to 1200 mm / 1300 mm outer diameter (OD). The adapter must match the exact OD of your casing string.

Casing Joint Connection: The bottom of the adapter is outfitted with standard female/male conical casing joints and pin slots (compatible with Soilmec or Bauer-style bolt connections) to lock seamlessly into the top double-wall or single-wall casing section.

Construction: High-tensile forged steel with reinforced "U" blocks or welded ribs to withstand intense torsional fatigue during casing installation and extraction in dense gravels or stiff silts.