C120 jaw crusher
The C120 jaw crusher is a primary crushing workhorse for mining and aggregate production lines with hourly capacities in the 300–500 tonne range. Featuring a 1200×870 mm feed opening, a maximum feed size of ≤700 mm, and a capacity of 160–500 t/h, a single unit can handle the "first-stage crushing" of run-of-mine ore. Compared to using multiple small-to-medium jaw crushers in parallel to achieve the required capacity, the C120 requires fewer units and a shorter production line, while offering lower electricity consumption per tonne and reduced maintenance costs—representing the standard solution for large-scale primary crushing stations that prioritize "fewer units and high throughput."
I. Overview: What is the C120 Jaw Crusher?
The C120 belongs to the C-Series of large jaw crushers and is a flagship model designed for primary crushing applications requiring large feed sizes and high capacity. It utilizes a deep V-shaped crushing chamber and the principle of inter-particle (lamination) crushing; a crank-link mechanism drives the reciprocating motion of the swing jaw, crushing run-of-mine ore (≤700 mm) down to an adjustable semi-finished product size of 70–200 mm, thereby providing a stable feed for downstream secondary crushing (cone crushers) or grinding (ball mills or semi-autogenous grinding mills).
The design philosophy of the C-Series is clear: to make the crushing process simple and reliable. It features no complex hydraulic systems or reliance on precision electronic controls; the core wear parts are limited to jaw plates and toggle plates. With a high degree of standardization and excellent spare part interchangeability, the machine ensures long-term availability even in the harsh operating conditions typical of mining sites. For mine owners, the C120 addresses not merely the question of "can it crush?" but three more practical concerns: stable performance, cost-efficiency, and ease of repair.
Structural Diagram of C-Series Jaw Crusher
II. Core Application Scenarios
2.1 Primary Crushing in Large-Scale Metal Ore Processing Plants
In processing plants for iron, copper, and gold ores, the primary crushing stage involves large run-of-mine ore blocks (500–700 mm) and high throughput requirements. The C120 is installed directly between the ore bin and the conveyor belt, crushing the raw ore to a feed size suitable for downstream cone crushers or ball mills. The "more crushing, less grinding" approach relies on a stable coarse-crushing output size to directly improve mill hourly throughput and energy efficiency, thereby positively impacting the plant's overall recovery rate and cost per ton of ore.
2.2 Large-scale sand and aggregate production lines
For 300–500 t/h aggregate lines processing granite, basalt, or limestone, the C120 handles the primary coarse-crushing stage. When paired with secondary cone crushers and sand-making/shaping equipment, it forms a complete three-stage process ("jaw crusher + cone crusher + sand maker"). This setup ensures stable product gradation and controllable flake/elongation content, meeting the rigorous aggregate standards required for highway construction and commercial concrete plants.
2.3 Crushing of cement raw materials
Cement plant limestone quarries typically employ a "two-stage crushing + raw meal grinding" process. The C120 performs primary crushing on run-of-mine limestone (≤700 mm) down to 100–200 mm. By providing a uniform feed to the raw meal mill and indirectly boosting hourly throughput, it serves as the starting point for energy savings in the raw material section through the "crushing-instead-of-grinding" strategy.
2.4 Processing of metallurgical and chemical raw materials
For metallurgical additives and chemical raw materials characterized by large lump sizes and moderate hardness (such as dolomite, gypsum, and bauxite), the C120 serves as the primary crusher, delivering a consistently sized feed for downstream grinding and calcination processes.
Somalia C-Series Jaw Crusher Production Line
III. Core Technical Parameters (C120 Standard Configuration)
| Parameter Item | C120 Standard Configuration |
| Feed Opening Dimensions | 1200 × 870 mm |
| Maximum Feed Size | ≤700 mm |
| Discharge Opening Adjustment Range | 70–200 mm (Wedge-type adjustment) |
| Processing Capacity | 160–500 t/h |
| Motor Power | 160 kW |
| Applicable Material Compressive Strength | ≤320 MPa |
| Crushing Principle | Inter-particle (lamination) crushing (reciprocating crank-link mechanism) |
| Total Machine Weight | ≈33 t |
Note: Capacity is rated based on limestone (density 1.6 t/m³); conversion factors of ×0.8–0.9 for granite and ×0.7–0.8 for iron ore apply. Actual configuration (motor, voltage level, hydraulic assistance, etc.) is subject to the specific selection plan; the unit is compatible with various regional power standards (e.g., 380V/400V/440V/60Hz).
IV. Core Advantages of the C120 Jaw Crusher
4.1 High single-unit capacity: shorter production lines and lower investment
A throughput of 160–500 t/h means that the primary crushing stage of a 300–500 t/h production line requires only one main unit, replacing the parallel setup of 2–3 small-to-medium jaw crushers. This reduces the number of machines, conveyor links, and civil foundation requirements, lowering total line investment by approximately 15–25% and shortening the project commissioning timeline.
4.2 Deep-cavity inter-particle crushing: low energy consumption per ton and minimal over-crushing
The deep V-shaped crushing cavity extends the material's crushing path within the chamber and utilizes compression (inter-particle) crushing rather than impact crushing. Both energy consumption per ton and the over-crushing rate are lower than those of impact-type equipment: in mineral processing lines, this reduces sludge formation and stabilizes separation metrics; in aggregate lines, it lowers the proportion of fines and reduces the screening load.
4.3 Wedge-style discharge opening adjustment; size switching without downtime
The discharge opening is continuously adjustable between 70–200 mm. The wedge mechanism allows for rapid adjustment (taking only minutes), eliminating the need for prolonged downtime when changing product sizes or adapting to downstream equipment; this flexibility and high production line utilization translate directly into increased output value.
4.4 Heavy-duty structural design; reliable long-term operation in harsh conditions
Features a one-piece cast steel frame and large-sized spherical roller bearings designed to withstand the impact loads of large raw ore blocks. Core wear parts (jaw plates and toggle plates) are standardized; when processing moderately abrasive materials, the initial set of jaw plates lasts over 12 months, ensuring controllable wear costs per ton and reliable long-cycle operation.
4.5 Low maintenance requirements and high spare part interchangeability
No hydraulic stations or complex electronic control systems are required; daily maintenance focuses primarily on jaw plate inspection and replacement, tasks easily handled by local maintenance teams. High interchangeability of spare parts across C-series models reduces both inventory pressure and the risk of downtime for mines in remote locations.
V. Real-world Case Studies
C-Series Jaw Crusher Customer Site
Case 1: Large-scale iron ore primary crushing station in Russia.
Processing magnetite ore (feed size ≤650 mm), a single C120 unit operates continuously with an actual throughput of approximately 420 t/h, producing material ≤180 mm for direct feeding into a secondary cone crusher. With over 7,800 hours of annual operation, the initial jaw plate set lasts about 14 months, and the wear cost per ton is approximately 20% lower than the previous "dual-unit parallel" configuration.
Case 2: Primary crushing stage at an African gold CIL processing plant.
A plant with a 350 t/h capacity utilizes the C120 for primary crushing of raw ore; the crushed product (≤150 mm) undergoes closed-circuit crushing before entering the ball mill. This setup increased the proportion of -200 mesh fines by approximately 5 percentage points and reduced mill power consumption by about 12%—demonstrating that stable primary crushing output size is a prerequisite for consistent leaching performance.
Case 3: Granite aggregate production line in Southeast Asia.
This 400 tph quarry operation utilizes a "C120 primary crusher + cone crusher (secondary) + VSI sand maker/shaper" configuration, supplying graded aggregates (5–31.5 mm) directly to a ready-mix concrete plant. The entire line went from contract signing to commissioning in approximately 10 weeks, with the C120 unit consistently maintaining a capacity utilization rate of over 90%.
VI. Recommended Auxiliary Equipment
| Station | Recommended Equipment | Selection Highlights |
| Feeding | ZSW Series Large Vibrating Feeder (ZSW-600×150) | Uniform feeding and pre-screening (soil removal); matches C120's high intake capacity |
| Primary Crushing | C120 Jaw Crusher | 160–500 t/h; feed size ≤700 mm |
| Secondary Crushing | CS / HP Series Cone Crusher | Accepts 70–200 mm feed; output ≤40 mm |
| Fine Crushing / Sand Making | VSI Sand Maker | Aggregate shaping; simultaneous production of manufactured sand |
| Screening | YA / YK Series Vibrating Screen | Closed-circuit material return; ensures stable product gradation |
| Grinding Extension | Overflow Ball Mill / Vertical Roller Mill | Feed preparation for mineral processing or powder grinding lines |
VII. FAQ
Q1: What is the difference between the C120 Jaw Crusher and PE Series large jaw crushers (e.g., PE-1200×1500)?
Both the C Series and PE Series operate on the jaw crushing principle, but they differ primarily in structural design. The C Series features a deep V-shaped crushing chamber and a wedge-based adjustment mechanism; it offers a higher reduction ratio and more precise control over discharge particle size, making it optimized for high-capacity, continuous operations. The PE Series emphasizes versatility and cost-effectiveness. For the same feed opening size, the C Series produces more uniform output and offers easier adjustment, making it ideal for medium-to-large production lines that demand high stability.
Q2: How hard a material can the C120 Jaw Crusher process?
How is capacity calculated? Suitable for materials with a compressive strength of ≤320 MPa, covering mainstream minerals such as limestone, dolomite, granite, iron ore, and copper ore. Capacity ratings in the specifications are based on limestone (1.6 t/m³); for granite, multiply by 0.8–0.9, and for iron ore, multiply by 0.7–0.8. Large-scale crushing of ultra-hard, fresh basalt requires an assessment of wear costs, with a cone crusher used to share the load if necessary.
Q3: Are the maintenance costs for the C120 jaw crusher high? What is the service life of the jaw plates?
The C120 features a simple structure and does not rely on a hydraulic power unit; routine maintenance primarily involves replacing jaw plates and toggle plates. Jaw plate service life depends on material abrasiveness: the first set can last 12–15 months for moderately abrasive materials (limestone) and approximately 6–10 months for highly abrasive materials (granite, iron ore). The high-manganese steel jaw plates are reversible, allowing for use on both sides, which further reduces the cost per ton.
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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