What materials can a jaw crusher recycle?
All three Evortle CT-series jaw crushers handle concrete, cinder block, brick, and masonry. The CT-740 and CT-850 also handle hard rock — granite, basalt, dolomite, and limestone. The CT-535 handles soft rock and limestone only, not hard rock. None of the CT-series jaw crushers are rated for asphalt. Drywall, treated lumber, plastics, insulation, and hazardous materials are not jaw crusher feed materials and require pre-sorting before the crusher.
What is the difference between the CT-535, CT-740, and CT-850?
The primary differences are jaw opening size, throughput, and hard rock capability. The CT-535 accepts material up to 20 inches and produces 20 tons per hour at 0-50mm output — rated for concrete, masonry, and soft rock. The CT-740 accepts up to 28 inches and produces 45 to 55 tons per hour — rated for concrete, masonry, and hard rock (granite, basalt, dolomite). The CT-850 accepts up to 32 inches and produces 65 to 95 tons per hour — same material capability as the CT-740 at higher throughput. The CT-740 includes intelligent level control (automatic feed rate regulation). The CT-850 includes a by-pass conveyor. Both the CT-740 and CT-850 include cross-belt magnets for rebar separation as standard.
Do I need permits to crush concrete on-site?
Permit requirements vary by state and local jurisdiction. Most states classify on-site concrete crushing as a standard construction activity that does not require a dedicated air or processing permit when the output is reused on the same project site. Some states require an air permit for dust-generating operations; silica dust at the crusher discharge is an OSHA-regulated exposure under 29 CFR 1926.1153 regardless of local permit requirements. Transporting crushed material off-site and selling it as aggregate may trigger additional requirements in some jurisdictions. Call us at 770-433-2670 — we work with contractors in every state and can point you toward the right framework for your region.
Can the same machine handle both concrete and cinder block?
Yes. All three CT-series jaw crushers handle concrete, cinder block, brick, and masonry. Cinder block is softer than reinforced concrete and feeds well in all three models. Masonry without rebar does not require a cross-belt magnet — the magnet is included on the CT-740 and CT-850 as standard, and available as an option on the CT-535 (+$7,000). For mixed feeds of reinforced concrete and masonry on the same site, add the magnet on the CT-535 and rely on the included magnet on the CT-740 and CT-850.
What is the minimum volume that makes on-site crushing worthwhile?
At typical tipping fees of $45 to $120 per ton, most contractors find on-site crushing makes financial sense above 100 tons per project or site. Below 50 tons, the mobilization cost of the crusher affects the per-ton math. Above 200 tons, the numbers favor on-site crushing in nearly every US market. For contractors running smaller jobs frequently — 50 to 80 tons per job, multiple projects per month within a working radius — the aggregate annual volume and equipment utilization changes the calculation. Use the calculator above with your actual disposal rate and volume.
Can crushed concrete be used as road base?
At 0-50mm output, crushed concrete meets the gradation for road base and structural fill in most state DOT programs. Acceptance varies by state — some DOTs have explicit specifications for recycled concrete aggregate (RCA) as base course; others accept it on a project-by-project basis. For DOT bid work, confirm local specification acceptance before including RCA in your plan. For private site work — access roads, parking lot base, sub-base under new slabs — crushed concrete at 0-50mm performs the same function as virgin aggregate in the same application.
What happens to the rebar from reinforced concrete?
On the CT-740 and CT-850, the cross-belt magnet separates rebar from the crusher discharge belt automatically during normal operation. Rebar bends and passes through the jaw chamber without wrapping on the jaw mechanism — it exits on the discharge belt and the magnet pulls it off. The rebar pile beside the machine is ferrous scrap at current market rates — typically $100 to $200 per ton depending on your market. On the CT-535, the cross-belt magnet is an optional add-on (+$7,000). For reinforced concrete work on a CT-535, the magnet is the right call.
Does Screen USA offer financing or rental for jaw crushers?
Call us at 770-433-2670 to discuss financing options. For rental, Screen USA maintains a rental directory of Evortle CT-series jaw crushers available through authorized dealers. Some buyers rent for a single high-volume project before committing to a purchase; others need short-term capacity without the capital requirement. We will point you to the right option for your situation.
