Multiple-cylinder and single-cylinder: What are the differences in structure and performance between the PYS/F series compound cone crushers?
Last year, a Guangxi boss paid an extra 800,000 yuan for a lesson. In the summer of 2023, the owner of a quarry in Guangxi called me, his voice hoarse. He had just installed a new production line, equipped with two single-cylinder cone crushers to process granite, but the production capacity simply couldn’t reach the design value. The finished product also had a high content of needle-like and flaky particles, resulting in two trucks of stones being rejected by the mixing plant. I asked him how he had chosen the model initially, and he said, “Single-cylinder is cheaper, and the equipment seller said that single-cylinder has a high throughput. I thought that high throughput must mean high production capacity.” This sounded familiar, but after twenty years in the crusher parts business, I know that the difference between single-cylinder and multi-cylinder PYS/F series compound cone crushers in terms of structure and performance cannot be understood simply by looking at a few parameters. That time, I went to the site to help him analyze for a week and finally suggested that he replace the fine crushing section with multi-cylinder equipment. Although it cost more, the production capacity was finally restored. Today, I will use the experience accumulated over these years to talk to you about how to choose between these two types of machines.
1. Main shaft structure: one moving, one fixed, what’s the difference?
Let’s first discuss the fundamental difference. The main shaft of the single-cylinder cone crusher is “moving” – the hydraulic cylinder is positioned at the bottom, and the main shaft moves up and down to adjust the discharge opening, with the moving cone swinging along with the main shaft. The advantage of this structure is its simplicity; the entire machine only requires one hydraulic cylinder, which reduces failure points and simplifies maintenance. But what are the disadvantages? The main shaft plays multiple roles, supporting the moving cone and transmitting crushing force, resulting in a complex stress situation.
The main shaft of the multi-cylinder cone crusher is “fixed” – it is fixed on the frame and does not move. The moving cone performs a rotary pendulum motion around the main shaft through an eccentric sleeve. This design allows the main shaft to only bear pressure and not be subjected to bending moments, resulting in high strength utilization and the ability to withstand greater crushing forces. A cement mine in Sichuan uses a multi-cylinder cone crusher to process basalt with a hardness coefficient f=16-18. After three years of continuous operation, the main shaft was dismantled for inspection, and the amount of deformation was almost negligible.
The old purchaser often asks, “Is a multi-cylinder crusher necessarily stronger than a single-cylinder one?” It depends on the working conditions. The structure of a single-cylinder crusher determines that its main shaft bears a relatively large impact load when processing large pieces of material. I have seen a single-cylinder crusher break granite over 400mm, and the main shaft was replaced twice in three years. However, if you control the particle size of the feed material well, the reliability of a single-cylinder crusher is completely fine.
II. Crushing Effect: Who is suitable for coarse crushing, and who excels at fine crushing?
This is where the selection is most prone to failure. The characteristic of the single-cylinder cone crusher is its “high throughput capacity”, with outstanding secondary crushing effect. Because its discharge opening can be adjusted to be relatively large, the material passes through smoothly, making it particularly suitable for secondary crushing, quickly breaking down the material from the jaw crusher. However, its crushing chamber design determines that it is inferior to multi-cylinder crushers in controlling the particle shape of the finished product.
The advantage of multi-cylinder cone crushers lies in “layered crushing” – the fast swing speed of the moving cone allows materials to be repeatedly squeezed in the crushing chamber, resulting in a high content of fine particles in the finished product and good cube shape. A sand making building in Hunan uses two multi-cylinder cone crushers for fine crushing, and the needle-like content of 5-10mm aggregates in the output is controlled within 8%, which is 5 percentage points lower than that of peers. When sold to commercial concrete stations, it can be priced two yuan per ton higher.
Let’s look at the data directly: under the same power, when handling fine crushing operations of medium-hard or harder ores, the qualified product output of multi-cylinder cone crushers is at least 1.2 to 1.5 times that of single-cylinder crushers, and the higher the hardness, the more pronounced the difference. A tungsten mine in Jiangxi Province conducted a comparison. When processing the same 100 tons/h of tungsten ore, the proportion of fine crushing products (-12mm) was 68% for the single-cylinder crusher, while it reached 79% for the multi-cylinder crusher.
Production managers often struggle with the dilemma: “I want high production, but I also want good particle shape. Can I have both?” A trade-off is necessary. If you are doing medium or coarse crushing, a single cylinder is more suitable; if you are doing fine crushing or sand making, multiple cylinders are the right choice. Solutions that expect the horse to run without eating grass often end up pleasing neither side.
III. Feeding method: Feeding by crowding Not all machines can handle multi-cylinder cone crushers, which have a characteristic – they must be “fed by crowding”. What does it mean? The crushing chamber should always be kept full of material, allowing the materials to press against each other and achieving laminated crushing. If the feeding is insufficient, the materials will directly hit the lining plate, resulting in poor particle shape, rapid wear of the lining plate, and even damage to the eccentric sleeve in severe cases.
The single-cylinder cone crusher is more tolerant in this regard and can operate without being fully loaded with feed material. However, the problem is that when it is not fully loaded, the crushing efficiency will be compromised. A quarry in Guizhou Province has tried this, and found that when the single-cylinder cone crusher is fully loaded with feed material, its production capacity increases by 18%, and the lifespan of the lining plate extends by 25%.
The novice purchaser is most confused: “How do I know if my production line can be fully loaded with feedstock?” It depends on the stability of the output from the preceding equipment. If the feedstock is intermittently fed after being screened by a vibrating screen, the multi-cylinder cone crusher will not perform well. If the feedstock is directly fed by a jaw crusher and the flow is stable, the multi-cylinder crusher can fully demonstrate its advantages.
IV. Maintenance: Single Cylinder for Convenience, Multiple Cylinders for Efficiency. From a maintenance perspective, both have their advantages. The single-cylinder cone crusher has a simple structure, with only one hydraulic cylinder for the entire machine and a straightforward hydraulic system, resulting in a low failure rate. A phosphate mine in Yunnan has been using a single-cylinder crusher for eight years, and the operators themselves can replace the lining plates and adjust the discharge ports, rarely needing after-sales service from the manufacturer.
The hydraulic system of a multi-cylinder cone crusher is complex, but it is convenient to replace the liner plate – all parts can be disassembled and assembled from the top or side without dismantling the frame. In a stone factory in Shanxi, two fitters cooperated to replace the rolling mill wall of a multi-cylinder cone crusher in four hours. For a single-cylinder crusher of the same specification, it would take a whole day to dismantle and assemble the frame.
The head of the equipment department often wonders, “Which one has lower maintenance costs?” We need to take a comprehensive view. Single-cylinder maintenance is simple on a daily basis, but it’s laborious when replacing major components; multi-cylinder has more routine inspection items, but it’s quick to replace wear parts. I generally recommend: if there is a dedicated maintenance team, choose multi-cylinder to leverage their technical expertise; if there are only ordinary operators, choose single-cylinder to avoid having to call you every day.
V. Practical Model Selection: Matching Materials Based on Their Hardness. Based on my years of on-site experience, I have compiled a simple model selection comparison:
Crushed limestone, marl, and other soft materials: Single-cylinder cone crushers offer high cost-effectiveness and can fully leverage their advantages of high throughput capacity. A cement mine in Anhui uses single-cylinder crushers for limestone, achieving a production rate per hour that is 5% higher than that of multi-cylinder crushers of the same specification.
For high-hardness materials such as crushed granite and basalt (fine crushing stage): Multi-cylinder cone crushers are the preferred choice, as they exhibit a clear advantage in laminated crushing. In a high-speed rail aggregate project in Fujian, multi-cylinder cone crushers were specified for use, precisely to achieve a cube content of over 95%.
Crushing of metal ores such as iron ore and tungsten ore (secondary crushing): It depends on the joint development of the ore. For ores with well-developed joints and easy to crush, a single cylinder is sufficient; for ores with dense structure and difficult to crush, multiple cylinders are more reliable. An iron mine in Inner Mongolia conducted a comparison and found that when processing the same batch of ore, the power consumption of multiple cylinders was 12% lower than that of a single cylinder.
Sand making building, high-quality aggregate production line: multiple cylinders are necessary, and those with high pendulum frequency should be selected. A Zhejiang-based aggregate production line with an annual output of 5 million tons utilizes three multi-cylinder cone crushers for fine crushing, resulting in a stable fineness modulus of 2.6-2.9 for the produced machine-made sand, which is more stable than many sand making machines.
The biggest headache for the purchasing director is: “With a limited budget, where should we invest our money?” My suggestion is that choosing the right model for the crushing section is more important than saving money. A production line can last for ten years, and the difference in equipment price may only be a few hundred thousand yuan, but the difference in production capacity can result in millions of yuan in profit. Don’t spend more unnecessary money just to save money on model selection.
FAQ Q1: Can the wearing parts of single-cylinder and multi-cylinder cone crushers be interchanged?
They are basically not interchangeable. The main shaft structures and crushing chamber shapes of the two models are different, and the curved surface designs of the rolling mortar wall and crushing wall are completely different. We have encountered customers who, in an attempt to save money, tried to use the lining plate of a single-cylinder model on a multi-cylinder model. Not only did it fail to fit, but it also damaged the adjustment ring. When purchasing accessories, it is recommended to stick to the original manufacturer or reliable supporting factories, rather than buying generic parts for the sake of cheapness.
Q2: How can I determine whether my working conditions are suitable for a single-cylinder or multi-cylinder engine?
Consider three factors: material hardness, crushing stage, and finished product requirements. For materials with a hardness of f>14, requiring fine crushing and specific particle shape, opt for a multi-cylinder crusher. For materials of medium hardness, requiring medium crushing and prioritizing production capacity, a single-cylinder crusher is sufficient. If you are unsure, you can send us the material for a trial crushing on our machine. Data speaks the loudest.
Q3: Is the compound cone crusher between the single-cylinder and multi-cylinder types?
The PYS/F series compound cone crusher is actually optimized from the spring cone crusher, combining the reliability of the spring crusher with the convenience of the hydraulic crusher. Its structure is somewhat similar to that of a multi-cylinder crusher, and the main shaft is also fixed, but the hydraulic system is relatively simple. If you have a limited budget but still want to enjoy the benefits of layered crushing, the compound cone crusher is a good compromise.
Meta Description: How to choose between single-cylinder and multi-cylinder cone crushers? A 20-year expert in crusher parts breaks it down with real-life mining case studies: Single-cylinder for medium crushing with high throughput, multi-cylinder for fine crushing with good particle shape. Attached is a comparison table for selecting models for granite, iron ore, and limestone, helping you avoid 80% of the pitfalls in model selection.
Core Keywords: Single-cylinder Cone Crusher, Multi-cylinder Cone Crusher, Compound Cone Crusher, Cone Crusher Selection, Lamination Crushing, Cone Crusher Accessories, Discharge Port Adjustment, Crushing Chamber Design
Post time: Mar-05-2026