220 Rotary Drilling Machine for Bored Pile Foundations

Where a 220 Rotary Drilling Machine fits on site

Rigs in the 220 class sit in the middle of the rotary range. They are big enough for most bridge piers and tower foundations, yet lighter to move between sites than the largest rigs. Contractors often pick this size when pile depth and diameter vary from one job to the next.

The rig swaps its tool to suit the ground. A drilling bucket works well in clay, silt and sand, while a rock auger or core barrel handles harder layers. Changing tools takes far less time than moving in a second machine.

Typical specification for this class

The values below are typical for the equipment type and are confirmed for your order at quotation:

• Automation: hydraulic rotary table, operator cab controlled
• Power: diesel engine, kelly bar rotary drive, hydraulic winch
• Build: steel mast, kelly bar, drilling bucket/auger
• Capacity: 1.5-3.5 m drilling diameter, up to 100 m depth

Real depth depends on the kelly bar you choose and the soil profile, so we size the bar and tools against your pile schedule rather than the brochure figure.

Points we check before we build

Buyers usually send us their pile diameters, pile depths and a soil report. From that we confirm:

• Kelly bar type (friction or interlocking) and length
• Which buckets, augers and core barrels to ship with the rig
• Fuel grade and engine setup for the site climate
• Transport size, since the mast folds down for road and sea transit

For the step up in size, compare our 280 rotary drilling machine or the smaller 180 rotary drilling rigs. Site crews should also follow OSHA construction equipment safety guidance around rotating plant and suspended loads.

Export supply of the 220 Rotary Drilling Machine

We supply single rigs, fleet orders and tender quantities to importers, contractors and government projects. Recent enquiries come from Nigeria, Kenya, Ghana and South Africa. Each shipment leaves with the commercial invoice, packing list, certificate of origin and bill of lading your customs broker will ask for.

Our shipping, Incoterms and export documents page explains how a rig moves from our yard to your port. Browse the full construction machinery and equipments range if you are equipping a whole piling crew.