Small-scale PC series hammer crusher
The small-scale PC series hammer crusher (models PC-400×300, PC-600×400, and PC-800×600) represents the most cost-effective option for medium-to-small mines, sand-making plants, and building material facilities looking for medium-to-fine crushing equipment. With a single-unit capacity of 5–45 t/h, it can reduce medium-soft materials—such as limestone, coal, and gypsum—to a particle size of ≤15mm in a single pass. The equipment costs roughly half that of an impact crusher with equivalent capacity, requires simple civil engineering infrastructure, and offers a short lead time from installation to production. Baichy Heavy Industry is a professional manufacturer of mining crushing, ore grinding, and mineral processing equipment; the PC series has been utilized in mining and building material projects across more than 150 countries. This article evaluates the equipment across four dimensions—overview, application scenarios, core advantages, and case studies—to help you determine if it can serve as a key driver for cost reduction in your production line.
I. Overview of the Small-Scale PC Series Hammer Crusher
The small-scale PC series hammer crusher is a type of impact crushing equipment. Upon entering the crushing chamber, material is violently struck by hammers mounted on a high-speed rotor and hurled against impact liners; particles smaller than the grate bar gaps are discharged from the bottom, achieving the desired size in a single crushing stage. The machine consists of a housing, rotor, hammers, and grate bars; it features a compact structure with a small footprint and requires no complex hydraulic or lubrication systems.
Its process role is clearly defined: designed for medium-hard, brittle materials with an input size of ≤150mm and a target output of ≤15mm, a single unit can replace the traditional two-stage "coarse crushing + fine crushing" process. For small-scale production lines, it serves as both the primary crusher and a pre-crushing unit for the grinding stage; by pre-crushing ore to the optimal feed size for the mill, it can increase the mill's hourly output by 20–30%, thereby achieving cost savings through the "crushing-instead-of-grinding" approach.
II. Application Scenarios for the Small-Scale PC Series Hammer Crusher
1. Pre-crushing for small-scale mines and ASGM (Artisanal and Small-Scale Gold Mining) processing operations. For small-to-medium-sized gold mines and ASGM (Artisanal and Small-scale Gold Mining) projects in Africa and South America, it is the preferred choice for primary crushing prior to ball milling. Crushing gold ore to ≤15mm before it enters the mill significantly boosts grinding efficiency; the equipment is easy to transport and install, making it ideal for remote mining areas with limited power supply.
2. Small limestone quarries and cement raw material preparation. Limestone with a feed size of ≤150mm is fed directly into the machine; the output (≤15mm) meets the requirements for raw meal grinding, eliminating the need for a two-stage "jaw crusher plus impact crusher" setup. For small quarries with a daily output of several hundred tons, a single PC-800×600 unit can handle the primary crushing requirements.
3. Raw material preparation for coal yards, coking plants, and brick factories. Raw coal, coal gangue, and coke breeze are crushed to ≤15mm before proceeding directly to coal blending or briquetting stages. As coal is less abrasive than limestone, hammer service life can be extended by over 50%.
4. Size reduction of chemical raw materials such as gypsum and phosphate rock. Output particle size can be adjusted within the 5–15mm range simply by changing the grate bars, allowing a single production line to handle perse orders without replacing the main machine.
5. Sand making from construction waste and soft rock. When configured in a closed-loop circuit with a vibrating screen, it enables "crushing-instead-of-grinding" sand production—suitable for base course and fill materials—with energy consumption as low as 1.5–2.5 kWh/t.
small hammer crushe
III. Technical Parameters for PC Series Hammer Crushers
Key Parameters for Small-Scale PC Series Single-Rotor Models (Capacity based on limestone bulk density of 1.6 t/m³)
Small PC Series Hammer Crusher — Main Parameters
Capacity basis: limestone 1.6 t/m³| Model | Feed Size (mm) | Output Size (mm) | Capacity (t/h) | Motor Power (kW) | Total Weight (t) | Typical Applications |
|---|---|---|---|---|---|---|
| PC-400×300 | ≤100 | ≤15 | 5–10 | 11 | 0.8 | Pilot lines, small coal yards |
| PC-600×400 | ≤120 | ≤15 | 12–25 | 22 | 1.5 | Small-scale mine pre-crushing, brick plants |
| PC-800×600 | ≤150 | ≤15 | 25–45 | 55 | 3.9 | Small quarries, sand-making lines |
IV. Key Advantages of Small-Scale PC Series Hammer Crushers
1. Low investment, fast payback. Equipment cost is approximately half that of an impact crusher with equivalent capacity; civil works are simple, requiring no heavy-duty foundations; total line investment is 25–30% lower than two-stage crushing processes.
2. Single-stage shaping, streamlined process. With a crushing ratio of 10–25, a single pass yields over 85% of the product at ≤15mm, eliminating the need for secondary crushing equipment and associated civil works.
3. Low specific power consumption. Approximately 1.5–2.5 kWh/t for limestone applications, representing a saving of about 30% in overall power consumption compared to two-stage crushing.
4. Low maintenance requirements. Modular hammer installation allows for independent replacement of inpidual hammers (approx. 30 minutes per replacement); high-manganese steel hammers feature four usable sides, extending service life through rotation; the casing is equipped with an opening mechanism, allowing for maintenance without dismantling the entire machine.
5. Selection Constraints: Suitable only for medium-hard, brittle materials with a compressive strength of ≤150 MPa; strictly prohibited for use with high-hardness, abrasive materials such as granite or basalt. Recommended feed moisture content is ≤10%; sticky materials with moisture exceeding 15% will clog the grate bars and reduce production capacity by over 30%.
V. Application Cases of Small PC Series Hammer Crushers
small-scale mining crushing equipment
Case 1: Pre-crushing upgrade for a small gold mine in Southeast Asia.
Previously, run-of-mine ore was fed directly into the ball mill, yielding a throughput of only 8 t/h. After introducing a PC-600×400 unit to pre-crush material to ≤15 mm, the mill's throughput increased to 11 t/h (a rise of approximately 37%). Specific energy consumption for the crushing stage was 2.0 kWh/t, and the equipment was installed and commissioned within 15 days.
Case 2: Coal gangue crushing at an African brick factory.
A PC-800×600 unit was used to process coal gangue, achieving a capacity of 30–38 t/h and a product pass rate of 93%, with a single set of hammers lasting over 8 months. The original two-stage setup (jaw crusher plus fine crusher) was replaced by a single machine, reducing installed power by 45% and annual maintenance man-hours by approximately 60%.
Case 3: Small gypsum powder plant.
A PC-400×300 unit was used to crush agglomerated desulfurization gypsum. The crushed product (≤10 mm) was fed directly into a Raymond mill, eliminating the need for manual breaking and reducing overall production costs by approximately 15%.
VI. Recommended Auxiliary Equipment for Small PC Series Hammer Crushers
• ZSW Vibrating Feeder: Ensures uniform feeding, prevents material from directly impacting the rotor, and extends hammer lifespan.
• PE Jaw Crusher: Used for primary crushing of large ore blocks (>150mm) before feeding into this machine.
• YK Vibrating Screen: Handles product grading and closed-circuit screening to enable multi-stage product utilization.
• Spiral/Wheel-bucket Sand Washer: Paired with sand-making operations to produce clean sand.
• Ball Mill/Raymond Mill: Acts as a pre-crushing stage; can increase the mill's hourly output by 20–30%.
• Bag-type Dust Collector: Ensures dust emissions comply with environmental regulations.
VII. FAQs for Small PC Series Hammer Crushers
Q1: How do I choose between the small PC series hammer crusher and an impact crusher?
A: It depends on material hardness and the target output. For medium-hard, brittle materials with a target output size of ≤15mm, the PC series hammer crusher is preferred due to lower investment costs per ton and reduced power consumption. For hard rock with a compressive strength >150MPa or when cubical aggregate shapes are required, an impact crusher or cone crusher should be selected.
Q2: How is the actual capacity of the PC-600×400 calculated?
A: Rated capacity is based on limestone with a bulk density of 1.6t/m³. When crushing coal, a conversion factor of 0.45–0.7 is applied, resulting in an actual capacity of approximately 8–18t/h; for gypsum, it is about 10–20t/h. Baichy Heavy Industry can provide a free capacity calculation report if you supply details on material bulk density, moisture content, and target particle size.
Q3: What is the service life of the hammers, and how can it be extended?
A: Under limestone crushing conditions, a set of hammers lasts about 2–4 months; this lifespan can be extended by over 50% when processing coal. Key measures include: ensuring uniform feeding to avoid impact from idling; installing an iron remover to clear foreign objects; flipping the hammers over after wear occurs; and keeping material moisture content below 10%.
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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