Bark Dryer Manufacturer in the United States
See how we dry BarkLooking for bark dryer manufacturers in the United States? STRONGA builds FlowDrya lines to order at its Hertfordshire works and supplies them to the United States — see the regulatory and economic context below.
FlowDrya bark dryers are built to order at STRONGA's Hertfordshire factory and shipped to American sawmills and wood-processing sites; we hold no documented US bark installation yet, and we will not pretend otherwise. Sawmills already run biomass boilers to kiln their lumber, so the surplus heat needed to dry bark is usually on site, and FlowDrya simply taps it. Drying turns a low-grade, hard-to-store residue that arrives at 56 to 65% moisture into clean, screened, uniform bark for the horticulture, landscaping and mulch trade, and the machine's sub-floor screening lifts soil and stones out during the drying pass so the finished product needs far less handling downstream.
Supplying the United States
We supply the United States from our Hertfordshire works — we have no documented Bark installation in the United States yet.
Regulatory context
Non-hazardous solid waste is regulated under Subtitle D of the federal Resource Conservation and Recovery Act (RCRA): open dumping is banned and municipal solid waste landfills must meet the minimum national criteria of 40 CFR Part 258, but the individual states run the permitting programs and may set stricter rules, so the requirements a drying or waste-processing plant faces vary from state to state.
Source: https://www.ecfr.gov/current/title-40/chapter-I/subchapter-I/part-258 · checked 2026-08
There is no single federal compost standard; instead, marketable compost quality is demonstrated through the US Composting Council's Seal of Testing Assurance (STA) Certified Compost program, which uses the TMECC test methods and is referenced by a growing number of state and municipal purchasing specifications.
Source: https://www.compostingcouncil.org/page/STARequirements · checked 2026-08
Applicable standards: EN ISO 21640, EN ISO 17225-4, EN ISO 18134, US Composting Council STA (TMECC), 40 CFR Part 503.
Economic context
US landfill tipping fees have climbed year on year — the latest national survey by the Environmental Research & Education Foundation (EREF) put the average at $62.28 per ton, roughly 10% up on the prior year, and large or private landfills charge appreciably more — so avoiding disposal is a growing cost saving.
Source: https://www.recyclingmonster.com/article/eref-us-landfill-tipping-fees-soared-10-in-2024/4251 · checked 2026-08
US industrial customers paid an average of roughly 8.29 cents per kWh for electricity in 2025 (EIA Electric Power Monthly, Table 5.6.A) — cheaper than in Europe but still well above the cost of recovered process heat, so a dryer that runs on waste heat and draws little grid power protects the operating margin.
Source: https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_5_6_a · checked 2026-08
US industrial natural gas is inexpensive by world standards — recent EIA data put it at $4.07 per thousand cubic feet — which favours drying systems designed around gas-fired or biomass-fired heat, or recovered kiln and boiler exhaust, rather than electric heating.
Source: https://www.eia.gov/dnav/ng/hist/n3035us3a.htm · checked 2026-08
Worked illustration (assumptions stated):
The bark case is a freight-and-value story. Wet bark is heavy and cheap; dry, screened bark commands premium landscaping prices and travels much further per truckload, cutting the number of loads. Because a sawmill's biomass boiler already supplies the drying heat, the marginal energy cost stays low even with industrial power near 8.29 cents per kWh, and the stop-start floor draws little electricity anyway. Any bark that would otherwise be dumped avoids a landfill tipping fee averaging $62.28 per ton. Rural mills may also recover part of the capital through a USDA REAP grant of up to 50% of the project cost. Assumptions: the best returns assume on-site waste heat and access to premium horticultural markets; the figures are national references, not a quotation.
Figures are indicative and were last reviewed August 2026; energy and disposal prices move — contact us for a current assessment.
Bark Dryer Manufacturer in the United States — FAQ
Do you have a US bark drying installation?
Not yet. We will not imply an American bark reference we do not hold; our documented projects dry bark, digestate fibre and woodchips in Britain, on the same platform a US bark dryer would use.
Can a sawmill use its own heat to dry bark?
Almost always. Sawmills run biomass boilers for lumber kilning, and FlowDrya is designed to reuse that surplus thermal energy, so bark drying adds little to the site's fuel bill.
What are dried bark's markets in America?
Screened dry bark sells into horticulture, decorative landscaping, playground surfacing and soil-conditioning blends, where clean, uniform, consistently dry fractions attract far higher prices than damp mill residue.
Does drying extend bark's shelf life?
Considerably. Wet bark self-heats, moulds and breaks down in the pile; dried bark stays stable, odour-free and saleable through the off-season, letting a mill hold inventory for peak landscaping demand.
Is bark drying viable without buying extra fuel?
Usually. The biomass boiler already installed for timber kilning supplies the heat, so the mill monetises a residue using thermal energy it is generating anyway.
Does FlowDrya reduce bark handling and labour?
Yes. Automated infeed, continuous throughput and a large hopper mean minimal operator attention, while cleaner screened output needs less downstream rehandling before bagging or bulk dispatch.