Wholesale DR-90 Rotary Drilling Rig with 90KN.m Torque for Foundation Work

You're looking at the DR-90 then — that 90KN.m torque is the sweet spot for mid-range foundation work, we move a lot of these for building piles and retaining walls. Drilling depth maxes at 15m with a 450-1500mm diameter range, so you're covered for most residential and light commercial projects; it'll punch through sand, clay, and even reinforced concrete surfaces without bogging down. Packaged on tracks with 500mm width and a 2 km/h travel speed, it's slow but stable—you'll maneuver it around tight job sites better than a bigger rig.

Power head runs at 10-50 RPM with that 90KN.m torque, which basically means you get solid penetration in harder ground without spinning out. The Cummins 110KW diesel engine is a workhorse (we usually have stock on these, but confirm lead time for specific configurations), and hydraulic system holds steady at 32MPa working presure. 120KN main winch capacity is enough for pulling casing or lifting accessories, just don't expect it to handle deeper shafts beyond 15m efficiently.

For ordering, MOQ is typically 1 unit for direct wholesale — we've done as low as single rigs for small contractors and larger lots for equipment fleets. Factory lead time is about 30-45 days depending on kelly bar length and whether you need any mast adjustments (the ±4° sideways and 4° forwards tilt is standard, but our company can tweak it slightly). Also, CE and ISO 9001:2008 certs come with the paperwork, but RoHS compliance depends on the electronics batch—so check if that's critical for your region.

17 tons empty weight, overall dimensions 9600×2300×3200mm — that means it'll squeeze onto a flatbed trailer without special permits in most countries. One thing buyers don't always ask is the maximum drilling depth drops to about 12m in full casing mode, and in pure loose sand you'll want to run the rotation speed closer to 50 RPM for better cleaning. We've seen places use it for installing sheet pile guides too, though it's not ideal for that application compared to a dedicated vibratory hammer rig.

Warranty is standerd 1 year, and we do send field maintenance techs for commission and initial training — usually a 2-week site visit (travel costs and accommodation covered on orders over 3 units or so). Most customers opt for teh 10m kelly bar setup as it's handier for transport, but the 15m bar gives you full depth if your project calls for it. Quick note on the hydraulic rotary system: it's a top-drive design, so less chance of rod jams than bottom-drive units, but pre-drill water or mud circulation holes if you're hitting hardpan clay.