Quarry & Earthmoving Heavy Plant 4,000 PSI Rig
Client: Civil Earthmoving & Quarry Operations Contractor
Extreme-duty single-fuel diesel rig engineered to strip hardened clay, grease, and bitumen from 50-tonne quarry excavators
Client Requirements
Operating across aggressive limestone quarries and major motorway earthworks projects, the client needed to wash down 30-to-50-tonne excavators, bulldozers, and crushing plant in remote locations where neither electric power nor running water was available. Hardened clay, track compacted limestone aggregate, and hydraulic leaks required massive impact force combined with 100°C hot water degreasing.
Technical Constraints
Quarry haul roads are unpaved, potholed, and steep. Standard rubber torsion axles struggle under 3.5 tonnes over rough terrain. The chassis had to incorporate heavy parabolic leaf spring suspension, commercial 14-inch high-load tyres, and structural steel gusseting to survive continuous off-highway punishment.
SYSTEM ARCHITECTURE & INNOVATIONS.
Alkota UK engineered an ultra-rugged open deck tandem chassis with parabolic leaf springs and oil-damped shock absorbers. The power unit is an Alkota DED skid powered by a 3-cylinder liquid-cooled Kubota industrial diesel engine. A massive 2,000L water tank allows extended cleaning shifts on remote extraction faces without returning to the depot for water.
Heavy-duty parabolic leaf suspension with commercial shock absorbers for brutal quarry haul roads
4,000 PSI @ 19.0 LPM delivers massive kinetic impact for dislodging packed clay and track muck
Unified single-fuel architecture: Kubota diesel engine and Alkota burner share single 80L diesel fuel supply
Dual stacked 50m hose reels allowing operators to walk completely around massive 50T excavators
Lockable chequerplate tool chests housing turbo nozzles, scrapers, and extension lances
Subsystem Walkthrough
01 — Kubota 3-Cylinder Diesel Power
Industrial liquid-cooled diesel engine designed for 10,000+ hour operating lifetime under harsh dusty conditions.
02 — 4,000 PSI Triplex Plunger Pump
Low-RPM ceramic triplex pump delivering 19 LPM of cutting flow with stainless steel valve seats and brass manifold.
03 — Parabolic Suspension System
Twin heavy-duty axles with multi-leaf parabolic springs, equalising rocker beams, and automotive shock absorbers.
04 — 2,000L Heavy Reservoir System
Dual interconnected baffled tanks with low center-of-gravity mounting across the axle bed.
VERIFIED PROJECT SPECIFICATIONS.
Lifecycle Support & Maintenance
Like all Alkota UK bespoke builds, this system is supported by scheduled Planned Preventative Maintenance (PPM), annual IVA roadworthiness inspection certification, and our industry-leading 7-year hydro-insulated coil warranty.
Learn About Trailer PPM & Lifecycle Care →ENGINEER YOUR SYSTEM.
Use this completed build as your starting blueprint in our interactive rig configurator. Customise water volume, machines, recovery, and chassis MAM in real time.