Eagle Crusher helps aggregate producers and recycling yards match feed size, discharge opening and output capacity (t/h) before the PO — then backs every string with CE, EPA Tier 4 Final options and parts dispatch that keeps closed-side settings honest through the season.
Field-engineer FAQ
Typical portable jaw plants ship 12–16 weeks ex-works after chamber and chassis confirmation. Impact-and-screen strings average 14–18 weeks including foundation drawing review and a seven-day commissioning audit on first start.
Mobile plants destined for regulated pits ship with DPF + SCR aftertreatment and per-machine NOx/PM logs. Stationary electric drives are available when the site grid supports continuous duty without diesel gensets.
On high-silica granite at roughly 200 t/h, expect 350–700 operating hours per jaw plate set depending on feed size distribution and discharge opening discipline. We gauge thickness at planned shutdowns and stage OEM-profile replacements from regional hubs.
Contracted crushing circuits target under 18-hour mean time to repair on critical crushers. Eighteen regional hubs stock fast-moving jaw plates, blow bars and screen media; non-stock chamber kits ship overnight in major North American corridors.
Hydraulic circuits on tracked plants are flushed to ISO 4406 18/16/13 before shipment. Commissioning includes hydraulic system pressure baselines (bar/MPa) logged into your service portal for later wear trending.
Keep the jaw as the primary when feed sizes sit above roughly 600–800 mm and rock hardness is high — compressive crushing is more efficient. Choose impact when cubicity into asphalt fractions matters more than maximum feed size. Our Solutions matcher walks both sides with abrasion index inputs.
Why quarry crews stay with Eagle
Application engineers map jaw opening (mm), closed-side setting and expected output capacity (t/h) to your blast fragmentation curve before the plant leaves Galion. That matching reduces bridging in the hopper and keeps secondary screens fed without starving or flooding the circuit.
When asphalt plants demand cubical fractions, impact rotors and apron settings are documented against target product curves. Fleet managers use those numbers during the 0-hour commissioning walk so the first stockpile is a measured baseline — not a week of trial-and-error screen changes.
Where quarries sit inside low-emission zones, portable plants ship EPA Tier 4 Final with DPF/SCR aftertreatment and in-cab DEF alarms. Hydraulic system pressure stays within published bar/MPa ranges so crusher adjustment remains predictable while emissions paperwork stays audit-ready for municipal and highway tenders.
When a jaw plate or blow bar fails mid-shift, every idle hour burns asphalt-plant contingency. Eagle stocks high-wear SKUs at regional hubs and pairs them with application engineers who already know your chamber class — so the fix arrives with the right torque procedure, not a generic catalog page.
Compare common configurations
Use this comparison when your estimator is choosing between a mid-range portable jaw and a higher-capacity primary for hard limestone. Final selection still follows feed size (mm), abrasion index and required discharge opening.
| Parameter | Eagle 1200 Class | Eagle 1400 Class |
|---|---|---|
| Operating weight | 48 t | 62 t |
| Jaw opening | 760 × 1,070 mm | 910 × 1,220 mm |
| Feed size (typical max) | 650 mm | 800 mm |
| Output capacity band | 180–280 t/h | 260–420 t/h |
| Discharge opening range | 50–150 mm | 60–180 mm |
| Engine option | Tier 4 Final 280 kW | Tier 4 Final 350 kW |
| Hydraulic system pressure | 280 bar | 320 bar |
Throughput bands assume limestone UCS typical of Midwest quarries; abrasive granite or wet clay feed will shift sustained t/h and liner windows.
“We held 310 t/h of limestone through a rainy Ohio season with one Eagle jaw-and-screen string and zero unplanned chamber change-outs. Their closed-side setting map matched our blast curve, and the secondary screen never starved the asphalt plant.”
Share company, country, equipment class and project type. If you already know preferred jaw opening or discharge opening, include them; if not, describe feed size and target fractions and we propose chamber and screen combinations within 24 hours.
From hard-rock primary jaws to C&D impact strings — we ship the plant and stay on-site through the first 1,000 crushing hours.
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