Stationary Fine-Crushing Jaw Crusher (30–60 t/h Capacity)
For a stationary fine-crushing jaw crusher with an hourly output of 30–60 tons, the optimal choice is the PEX-250×1200. It features a 250×1200mm feed opening, a maximum feed size of 210mm, and a continuously adjustable discharge size of 25–60mm. With a rated capacity of 20–61 t/h, it perfectly covers the 30–60 ton operational range. It utilizes the simple structure of a jaw crusher to achieve fine-crushing granularity comparable to that of a cone crusher; the investment cost is roughly half that of a cone-crusher setup of similar capacity, and maintenance involves simply replacing jaw plates rather than entire assemblies. Whether for small-scale aggregate lines, medium-to-fine crushing in mineral processing, construction waste recycling, or pre-crushing for grinding operations, this stationary fine-crushing jaw crusher represents a reliable, cost-effective, and efficient long-term choice for the secondary crushing stage.
I. Overview: Positioning the Stationary Fine-Crushing Jaw Crusher in the Production Line
Standard crushing production lines follow the principle that "primary crushing sets the upper limit, while fine crushing determines the final product." A primary jaw crusher reduces raw material to 100–300mm, after which medium-to-fine crushing equipment reduces the particle size to meet final product specifications. In the 30–60 ton/hour capacity range, most production lines choose between cone crushers, impact crushers, and fine-crushing jaw crushers. However, the stationary fine-crushing jaw crusher has long been underestimated; many industry professionals associate jaw crushers solely with primary crushing, overlooking the structural advantages of the PEX fine-crushing series for small-to-medium capacity operations.
The stationary fine-crushing jaw crusher shares the same inter-particle (laminated) crushing principle as the primary PE jaw crusher, but it features a flatter, elongated feed opening, a deeper crushing chamber, and a crushing ratio of 6–9. It is specifically designed for the secondary crushing stage, handling a "100–210mm feed to 25–60mm discharge" process. Stationary installation offers two direct benefits: a stable foundation and minimal vibration, resulting in a longer service life for the machine; and a fixed process flow with fewer potential points of failure, ensuring highly stable discharge grading when integrated into a closed-loop circuit with vibrating screens and belt conveyors. For production lines with an hourly output of 30–60 tons, this machine serves as the primary unit for secondary crushing or as a pre-crusher ahead of a cone crusher, ensuring the intermediate and fine crushing stages maintain core characteristics: simple structure, rapid maintenance, and low power consumption.
II. Core Specifications
| Parameter | Specification |
|---|---|
| Equipment Model | PEX-250×1200 (Stationary fine-crushing jaw crusher) |
| Feed Opening Size | 250×1200 mm |
| Max. Feed Size | ≤210 mm |
| Discharge Opening Adjustment Range | 25–60 mm (continuously adjustable) |
| Processing Capacity | 20–61 t/h (covering the 30–60 t/h range) |
| Eccentric Shaft Speed | 330 r/min |
| Motor Power | 37 kW (6-pole; 55 kW optional) |
| Applicable Material Compressive Strength | ≤320 MPa |
| Crushing Principle | Laminar crushing (swing jaw compression) |
| Typical Applications | Secondary aggregate crushing, intermediate/fine crushing in mineral processing, construction waste recycling, pre-crushing for grinding |
Note: Rated capacity is based on limestone (density 1.6 t/m³); actual capacity for granite is calculated by multiplying by 0.8–0.9, and for iron ore by 0.7–0.8. A 10–15% margin is recommended for equipment selection.
PEX-250×1200, 30–60 t/h jaw crusher
III. Application Scenarios
3.1 Secondary Crushing in Small-Scale Aggregate Lines
For aggregate plants with an hourly output of 30–60 tons, a standard "two-stage crushing plus screening" line can be configured using a PE primary jaw crusher and this stationary fine-crushing jaw crusher. Material from primary crushing (100–210 mm) feeds directly into the fine-crushing jaw crusher; the output (25–60 mm) then goes to a vibrating screen for classification. The resulting 0–5 mm and 5–25 mm fractions can be supplied directly to concrete mixing plants and for use in roadbed cushion layers. The entire line requires minimal civil engineering and a small footprint, making it ideal for startup quarries with limited capital and space, as well as for "phased investment" models (starting production now and expanding later).
3.2 Pre-stage for Fine Crushing in Mineral Processing Plants
Mineral processing for gold, copper, and manganese ores requires uniform feed size and minimal over-pulverization prior to the grinding stage. Fine-crushing jaw crushers deliver a stable, controllable output of 25–60 mm; when paired with a closed-circuit screening system, they provide "uniform-size feed" to ball mills, thereby reducing over-grinding and energy consumption. Saving 1 kWh in the crushing stage lowers the processing cost per ton—a direct application of the "crushing instead of grinding" strategy.
3.3 Construction Waste and Concrete Recycling
Construction waste often contains rebar and brick-concrete fragments; impact-type crushers are prone to tooth damage and jamming in such conditions, whereas the jaw crusher structure is naturally resilient to iron and impurities. Stationary fine-crushing jaw crushers are highly adaptable to materials with high moisture or impurity content. The output can be used as recycled aggregate for backfilling or as raw material for brick making, making them a highly reliable choice for the secondary crushing stage in urban solid waste resource recovery lines.
3.4 Pre-crushing for Powder Grinding Lines
Raymond mills and ball mills typically require a feed size of ≤30–50 mm; grinding large, raw chunks directly results in high electricity consumption and excessive wear. Using a fine-crushing jaw crusher to reduce ore to 25–60 mm before grinding significantly boosts hourly mill output and reduces wear—representing one of the most cost-effective energy-saving upgrades for powder grinding plants.
IV. Equipment Advantages
4.1 Elongated Feed Opening for High Intake Capacity
The 250×1200 mm flat feed opening ensures even material distribution within the crushing chamber, preventing single-point overloading. It offers superior adaptability to flaky or slab-like materials (such as gneiss, shale, and layered limestone) compared to models with square feed openings, resulting in a lower risk of jamming.
4.2 Mechanical discharge opening adjustment for controllable output
Continuously adjustable between 25–60 mm; the wedge-style adjustment mechanism eliminates the need for machine shutdowns or disassembly. Switching production specifications (graded aggregate / base course material / pre-grinding feed) takes only minutes—allowing a single machine to produce multiple finished products and maximizing capacity utilization.
4.3 Inter-particle (lamination) crushing with controllable wear costs
The swing and fixed jaw plates are cast from high-manganese steel, typically lasting 6–12 months in medium-hard rock applications. The plates are reversible and replaceable in pairs; the cost per ton for wear parts is significantly lower than that of blow bars in impact crushers (an advantage even more pronounced with hard rock), and spare parts offer short lead times and transparent pricing.
4.4 Stationary structure for lower maintenance requirements
No reliance on hydraulic systems or oil stations; bearings and drive components are standardized, allowing local maintenance staff to handle routine upkeep. Stationary installation ensures minimal foundation vibration and stable alignment; maintenance downtime is measured in hours rather than days, providing an invisible safeguard for continuous production lines.
V. Real-world Case Studies
Case 1: Small-scale granite aggregate quarry in Southeast Asia.
A 40 t/h production line featuring a PE-400×600 primary jaw crusher, a PEX-250×1200 secondary jaw crusher, and a vibrating screen. With a granite-specific capacity adjustment factor of 0.85, the actual output is approximately 34 t/h. The 25–40 mm output serves as graded aggregate supplied directly to local commercial concrete plants. The project went from contract signing to commissioning in six weeks; the total investment was roughly half that of a cone-crusher-based line of similar capacity, and the initial set of jaw plates lasted approximately eight months.
Case 2: Pre-crushing at an African gold processing plant.
Run-of-mine ore (≤210 mm) is crushed in a closed circuit using a secondary jaw crusher to ≤60 mm before entering the ball mill. The proportion of -200 mesh fines increased by approximately 5 percentage points, and mill power consumption dropped by about 12%. The consistent output particle size provided reproducible feed conditions for the CIL (Carbon-in-Leach) process.
Case 3: Construction waste recycling line in Latin America.
Urban demolition waste often contains rebar fragments, which frequently caused jamming in the original impact crusher. After switching to a stationary fine-crushing jaw crusher for the secondary crushing stage, monthly downtime dropped by approximately 70%. The output is used for recycled backfill and as raw material for permeable bricks, with a stable production capacity of 25–30 t/h.
VI. Recommended Auxiliary Equipment
| Station | Recommended Equipment | Notes |
|---|---|---|
| Feeding | ZSW-380×96 Vibrating Feeder | Uniform feeding; pre-screening to remove soil |
| Primary Crushing | PE-400×600 / PE-500×750 Jaw Crusher | Capacity matched with the fine-crushing jaw crusher |
| Fine Crushing (This Unit) | PEX-250×1200 Stationary Fine-Crushing Jaw Crusher | Main unit for secondary crushing |
| Screening | YA Series Vibrating Screen | Closed-circuit circulation for material return |
| Sand Making | VSI-7611 Sand-Making Machine OPTIONAL | Aggregate line also produces manufactured sand |
| Powder Grinding | Raymond Mill / Ball Mill OPTIONAL | Material enters mill after pre-crushing |
Fine-Crushing Jaw Crusher
VII. FAQ
Q1: Which model should be selected for a stationary fine-crushing jaw crusher with an hourly output of 30–60 tons?
The PEX-250×1200 is the top choice; its rated capacity of 20–61 t/h covers the 30–60 ton range. Actual capacity should be calculated by applying a factor of 0.8–0.9 for granite and 0.7–0.8 for iron ore; allow a 10–15% margin during selection and configure with a closed-circuit screening system. If the material is relatively soft and particle shape is a priority, consider comparing this with an impact crusher solution before deciding.
Q2: How do I choose between a stationary fine-crushing jaw crusher and a cone crusher?
Consider capacity and hardness: For hourly outputs under 50 tons and materials of medium hardness or lower, the fine-crushing jaw crusher offers significantly lower investment and maintenance costs (about half that of a cone crusher setup). Cone crushers are required only for high-volume production lines processing hard rock where their specific capacity and finer output are needed. The two can also be used in series—with the fine-crushing jaw crusher for pre-crushing and the cone crusher for final crushing.
Q3: How often should the jaw plates of a fine-crushing jaw crusher be replaced?
It depends on the abrasiveness of the material and the feed particle size: for medium-hard rock applications, the interval is typically 6–12 months. The jaw plates are reversible to extend their service life; once worn to the limit, they should be replaced in symmetrical pairs, with a downtime of approximately 4–8 hours per replacement.
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.
Baichy Heavy Industry – Your Trusted Partner
To ensure optimal performance of your equipment, Baichy Heavy Industry offers:
- Professional on-site installation guidance
- Comprehensive operator training
- 24/7 technical support & maintenance services
Our complete after-sales service system guarantees long-term, stable operation of your machinery with minimal downtime.
Protect Your Rights – Only Use Official Channels
To avoid scams and ensure authentic support, contact us exclusively through:
• Official Website: www.baichychina.com
• WhatsApp: +8615093222637
• Email: [email protected]
Your satisfaction is our priority – expect prompt, professional service every time.
(Note: Beware of unauthorized third parties claiming to represent Baichy. Always verify through official contacts.)
