Scrapers Buyer Guide

• Used market pricing typically ranges from $45,000 to $180,000 for pull-type scrapers, and $150,000 to over $1,200,000 for motorized scrapers depending on age and twin- vs. single-engine design.
• Operating weights range from 15,000 to 35,000 lbs for agricultural/construction pull-types, up to 75,000 to 140,000 lbs empty (and over 200,000 lbs loaded) for motorized twin-engine units.
• Struck and heaped capacities range from 15 to 44 cubic yards per machine cycle.
• Expected chassis life ranges from 15,000 to 25,000+ operating hours, with major powertrain rebuilds commonly required every 7,000 to 10,000 hours.
• Fuel consumption varies widely, from 12 to 25 gallons per hour on single-engine units, to 30 to 55+ gallons per hour on hard-working twin-engine push-pull configurations.
• Common configurations include open-bowl, elevating (paddle wheel), and auger bowls, along with factory push-pull cushion hitches.

• 1Draft frame and gooseneck welds: Thoroughly inspect the gooseneck casting and main draft arms for structural stress cracks, gusset tearing, and prior field welds.
• 2Hitch assembly and cushion hitch play: Check kingpins and oscillating hitch bushings for excessive radial or axial play; test cushion hitch accumulator charge and dampening action under load.
• 3Bowl components and floor wear: Inspect cutting edges, router bits, bowl floor liner thickness, and apron linkage pivots for severe wear, cupping, or deformation.
• 4Ejector guide rollers and cylinders: Examine ejector tracking rollers, guide rails, and push cylinders for scoring, bending, or side-wear caused by rocks packing behind the ejector face.
• 5Twin-engine synchronization: On twin-power units (e.g., Cat 627 or 637), ensure front and rear engines throttle, shift, and load-share evenly without rear torque-converter slippage.
• 6Tire condition and casing integrity: Measure remaining tread depth and check bead areas on ultra-expensive 33.25R29 to 37.25R35 scraper tires, where a single replacement can exceed $12,000 to $20,000.
• 7Elevator chain and drive sprockets: On elevating scrapers, measure flight bar straightness, chain roller stretch, lower idler play, and hydraulic drive motor case-drain leakage.
• 8Hydraulic system pressures and cycle times: Measure bowl lift, apron raise, and ejector extend/retract cycle times against factory spec, inspecting valve blocks for internal bypass under full hydraulic load.
• 9Hour meter integrity and telematics verification: Cross-reference engine ECM, transmission controller, and telematics hours against the dash readout to ensure accurate hours and identify excessive idle ratios.
• 10Oil analysis records: Request oil sampling reports for engines, power shift transmissions, differentials, and planetaries to detect early bronze wear or bearing fatigue.

Commonly-reported issues from operators and technicians. Every machine varies — always inspect before you buy.