MRF Costs

What Municipal Waste Sorting Really Costs per Ton: Estimating and Quoting MRF Processing

A cost breakdown for municipal sorting plants: where the dollars actually go across labor, capital recovery, residue disposal, energy, and maintenance, and how to assemble a per ton quote that holds up.

US single stream MRFs processed material for 75 to 110 dollars per ton in 2024 to 2026 contracts, up from 55 to 70 dollars a decade earlier, and the spread between a profitable line and a money loser is rarely the equipment brand. It is how honestly the estimate treats labor, residue, downtime, and commodity revenue risk. This guide breaks processing cost into its five real drivers and shows how to build a per ton quote that survives a municipal procurement audit. The formulas behind throughput and separation live in our calculations guide; here the only subject is where the dollars go and how to prove it.

Labor is the largest operating line at 40 to 50 percent of O&M in a typical manually assisted plant. A sorter earning 18 to 22 dollars per hour costs 26 to 32 dollars fully loaded once payroll taxes, workers comp, PPE, and turnover are counted. Turnover in this industry commonly exceeds 50 percent annually, adding 2,000 to 4,000 dollars per seat in rehiring and training that most estimates omit. At 12 sorters on a 20 ton per hour line, labor alone runs about 18 dollars per ton. The Pick Line Labor calculator converts headcount, loaded wage, and shift schedule into a per ton figure you can defend line by line.

Capital recovery is the quiet giant. A 25 t/h retrofit with two optical sorters at 350,000 to 600,000 dollars each installed, plus a ballistic separator, screens, and conveyors, lands at 12 to 20 million dollars; a greenfield building can double that. Amortized over 10 years at 7 percent on 120,000 annual tons, 15 million dollars of equipment costs about 17.80 dollars per ton before the building. Quote machine time at realistic availability, 80 to 85 percent of scheduled hours, never nameplate. A line quoted at 25 t/h nameplate but running 20.5 t/h effective inflates every per ton figure by 22 percent, which is the single most common estimating error in this category.

Residue is a double charge: you pay to process it, then pay again to dump it. At 15 percent residue on 120,000 inbound tons, 18,000 tons go to landfill at 60 to 120 dollars per ton tip fee plus 15 to 25 dollars hauling, call it 1.6 to 2.6 million dollars per year, or 13 to 22 dollars per inbound ton. Every percentage point of residue on this plant is worth roughly 100,000 to 170,000 dollars annually. The Reject Stream Cost calculator prices your actual residue rate against local tip fees, and the Contamination Rate calculator tells you how much of that residue arrived dirty versus how much your line failed to recover.

Energy and maintenance are smaller per ton but volatile. Sorting consumes 8 to 15 kWh per ton; at 0.10 to 0.14 dollars per kWh that is only 1 to 2 dollars per ton, though air systems deserve scrutiny because fans run whether material flows or not, and the Air Separator Energy calculator often finds 20 to 30 percent savings from VFD control. Budget maintenance at 3 to 5 percent of installed equipment value annually, 450,000 to 750,000 dollars on a 15 million dollar line, plus consumables: baler wire at 1.50 to 3 dollars per ton and screen discs every 6 to 18 months. The Maintenance Downtime calculator converts unplanned stops into lost throughput, typically 1,500 to 3,000 dollars per hour.

Assemble the quote bottom up: per ton price = (annual fixed costs + variable cost per ton x tons) / tons, plus margin, computed at contracted tonnage rather than capacity. Then layer the revenue side. Commodity revenue sharing is standard in municipal contracts; protect yourself with a floor so the processing fee applies regardless of market, and an index, because mixed paper swung from 75 dollars per ton to negative 5 and back within recent memory. Include a contamination surcharge, commonly 2 to 4 dollars per ton for each point above a 15 percent threshold, measured by an audit protocol you and the municipality agree on in writing before the first load.

The failure modes repeat across bids. Quoting nameplate throughput instead of effective, a 20 percent error. Using national average wages in a metro market that pays 15 percent over. Ignoring disposal escalation; tip fees rose 4 to 6 percent annually in most regions over the past five years, so a flat 10 year price loses a quarter of its residue margin by year 6. Forgetting the second shift premium when tonnage grows. And skipping downtime: a plant available 78 percent of scheduled hours delivers 8 percent fewer tons than one at 85, spreading identical fixed costs over less material. Price at your worst realistic quarter, then let the good quarters be the margin.

Published 2026-07-02.