Limestone Mobile Crushing Plant
The limestone mobile crushing station integrates the "feeding—primary crushing—secondary crushing—screening" process onto a mobile chassis. Specifically designed for limestone, it requires no concrete foundation and can be put into operation within 24 hours of arrival. Its production capacity deviates by less than 5% from fixed production lines of the same specifications, with a comprehensive cost of approximately ¥2.9 per ton. For limestone projects involving multiple work faces, short operational cycles, or space constraints, this equipment configuration offers the fastest return on investment.
I. Overview: Why Limestone Operations Need Mobile Crushing Stations
Limestone has a bulk density of approximately 1.6 t/m³, a Mohs hardness of 3–4, and low abrasiveness, classifying it as a typical medium-soft rock. The optimal processing route is "jaw crusher for primary crushing + impact crusher for secondary crushing," which delivers a high reduction ratio and produces well-shaped, rounded aggregates. The blow bars offer a service life exceeding 180 hours, and the wear cost per ton is merely one-third of that incurred when processing granite.
Mobile crushing stations turn this process flow into a standardized product: a ZSW feeder, PE jaw crusher, PF impact crusher, and circular vibrating screen are integrated onto a wheeled or tracked chassis. Fully assembled and tested before leaving the factory, the unit is ready for immediate operation upon delivery. It is the chassis that moves, not the core crushing units—the crushing chambers are identical to those used in fixed lines, ensuring no compromise in production capacity. II. Application Scenarios
| Scenario | Typical Requirements | Value of Mobile Station |
|---|---|---|
| Aggregate lines for cement/ready-mix concrete plants | 0–31.5mm graded aggregate | Impact crusher for shaping; <10% flaky/elongated particles |
| Highway/railway linear projects | Local material sourcing; relocation alongside project progress | Relocation follows project schedule |
| Metallurgical flux limestone | 40–80mm lump flux | Produces 4 product sizes in one pass |
| Short-term leased quarries | Short extraction window; rapid site clearance | Foundation-free; leaves no trace upon removal |
| Construction site self-supply | On-site crushing for backfill/sub-base material | Saves on external aggregate transport costs |
III. Standard Configuration and Core Parameters
The following details the standard configuration for a 150–200 TPH limestone mobile crushing station (rated based on medium-hardness limestone):
| Equipment Unit | Main Unit Model | Quantity | Power (kW) | Feed Size (mm) | Output Size (mm) | Unit Capacity (t/h) |
|---|---|---|---|---|---|---|
| Mobile Feeding Unit | ZSW490×110 | 1 | 15 | ≤500 | — | 120–280 |
| Mobile Jaw Crushing Unit (Primary) | PE750×1060 | 1 | 110 | ≤630 | 80–140 | 110–180 |
| Mobile Impact Crushing Unit (Secondary) | PF1315 | 1 | 220 | ≤350 | 5–40 (adjustable) | 130–250 |
| Mobile Screening Unit | 4YK2160 (4-deck) | 1 | 37 | ≤200 | 0–5/5–20/20–40/40–80 | 80–320 |
| Total Line | — | 4 | ~382 | ≤630 | 4 product sizes | 150–200 |
Capacity conversion basis (Limestone = 1.0): Dolomite ×0.95; Bluestone ×0.90; Granite ×0.75–0.85 (requires switching to a cone crusher). All price quotes are calculated based on this standard.
Quick calculation of operating costs (CNY/ton; electricity at CNY 0.8/kWh): Power consumption 2.2 kWh (CNY 1.76) + Jaw plates (CNY 0.36) + Blow bars (CNY 0.39) + Screen mesh (CNY 0.15) + Labor (CNY 0.24) ≈ Total cost of CNY 2.90/ton. The CNY 250,000–400,000 saved on foundation and installation costs translates directly into first-year profit.
IV. Equipment Advantages
1. No foundation required; immediate production — Output begins 4–6 hours after arrival; compared to the 15–30 day installation time for fixed lines, production starts 2–4 weeks earlier.
2. Impact crusher + limestone = optimal match — Finished product achieved in a single pass with rounded particle shapes, suitable for direct use as concrete aggregate.
3. Relocation costs near zero — The entire line can be relocated using one tractor unit and a crew of 2–3 people, with production resuming in 1–2 days; a single relocation of a fixed line incurs losses of CNY 180,000–360,000 (based on 1,200 tpd output and CNY 15/ton gross profit).
4. Power compatibility with global standards — Total line power is approx. 382 kW; supports 380V/50Hz, 400V/50Hz, and 440V/60Hz; diesel generator power supply is also an option.
5. Low investment threshold and scalable expansion — Eliminates civil works and installation/commissioning, reducing CAPEX by 25–30%; allows for initial deployment of primary crushing and screening units, with secondary crushing units added later.
mobile crusher for limestone
V. Customer Case Study: Aggregate line for a cement group in the Philippines
A cement group in the Philippines required a 150–200 tph limestone production line; however, the quarry site was far from the urban area, foundation construction conditions were poor, and the plant was scheduled to be relocated after two years. After adopting the Baichy four-unit mobile modular crushing station (ZSW490×110 + PE750×1060 + PF1315 + 4YK2160):
• Commissioning time: Production began on the second day after arrival, saving 25 days compared to a fixed production line;
• Actual capacity: Stable at 170–185 tph for limestone operations, with a compliance rate exceeding 95%;
• Finished product profile: Four aggregate sizes; needle-and-flake content for the 5–20mm fraction is <10%, meeting C30–C50 concrete grading standards;
• Economic analysis: Comprehensive cost per ton is approximately ¥2.9; relocation takes only 2 days after two years of operation, whereas a fixed line would require over 20 days of downtime.
Case Insight: Choosing a mobile production line for limestone projects isn't a gamble on output volume, but a strategic decision regarding relocation frequency and commissioning speed—factors that determine the Total Cost of Ownership (TCO).
VI. Related Recommended Equipment
• Crawler-type mobile crushing station — Self-propelled entry; suitable for quarries without established access roads;
• Wheeled single-unit stations — Can be added as needed by customers with existing fixed equipment to upgrade or expand the line incrementally;
• Fixed limestone crushing line — Can reduce cost per ton by an additional 10–15% when mining rights are stable and the project duration exceeds 5 years;
• VSI sand-making unit — Can be installed after the screening stage if manufactured sand is required, supplementing the 0–5mm sand supply;
• Limestone grinding equipment (Raymond mill/Vertical mill) — Mobile station output can be fed directly into the mill if 325-mesh powder is required.
VII. FAQ
Q1: How do I choose between a limestone mobile crushing station and a fixed crushing line?
Consider three variables: project duration, number of work faces, and site conditions. Choose a mobile station if the duration is ≤3 years, there are ≥2 work faces, or site foundation conditions are poor; the savings on foundation costs (¥250,000–¥400,000) and the flexibility of relocation determine the TCO. Choose a fixed line if mining rights are stable, the duration exceeds 5 years, and no further relocation is planned; this can reduce the cost per ton by an additional 10–15%.
Q2: For a limestone project, should I choose a wheeled or tracked mobile crushing station?
Choose the wheeled type (YDPZ) if there are access roads, towing vehicles are available for transport, and low initial investment is a priority. Choose the tracked type if there are no roads and the unit needs to move under its own power or relocate frequently; however, the purchase cost is 15–20% higher. For most quarries and cement plants, the wheeled type is sufficient.
Q3: Does the aggregate produced by mobile crushing stations meet concrete standards?
Yes. Impact crushers offer excellent shaping capabilities; for the 5–20mm product fraction, the content of flaky and elongated particles is less than 10%, and the crushing value and clay content meet the requirements for C30–C50 concrete. If the moisture content exceeds 5%, it is recommended to install a spray system on the screening unit and provide an outlet for discharging mud/fines. If the clay content is high, a grizzly screen can be installed at the feeding stage to separate the soil before primary crushing.
Baichy Heavy Industry
Baichy Heavy Industry is a high-tech mining equipment company integrating R&D, manufacturing, sales, and after-sales service. Focusing on crushing, grinding, and mineral processing equipment, we provide professional solutions to our customers. We are ISO9001:2015 、certified, and our products include mobile crushing palnts, crawler crushing plant, construction waste crushing plants, jaw crushers, sand making machines, cone crushers, fine crushers, grinding mills, ball mills, etc., all with reliable performance to meet diverse project needs.
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Our complete after-sales service system guarantees long-term, stable operation of your machinery with minimal downtime.
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