Fine jaw crushers are designed for medium-to-fine crushing of various ores and large bulk materials. They offer a balanced combination of fine product sizing, moderate throughput, and low operating costs. A common question among users is: What is the minimum discharge particle size achievable with a fine jaw crusher? This article provides a detailed answer.
For fine jaw crushers, the smallest discharge setting can reach 20mm. This depends on the model and application requirements.
How It Works?
The fine jaw crusher operates on a compression principle. Its crushing chamber is formed by two jaw plates: a movable jaw and a fixed jaw. Simulating the chewing motion of animal jaws, the moving jaw presses the material against the fixed jaw, breaking it down. Key design differences from conventional jaw crushers include:
Finer and denser tooth plates – These produce a more uniform, smaller product.
Slightly smaller feed opening – Optimized for medium-to-fine feed sizes.
Double-wedge discharge adjustment – Allows precise control of the outlet gap, reducing labor intensity and downtime. An optional hydraulic discharge system is also available for even easier adjustment.
Models and Technical Specifications
| Model | Max. Feed Size（mm） | Discharge Opening Size(mm) | Capacity(t/h） | Power(kw) |
| 400×250 | ≤210 | 20-80 | 7-23 | 15 |
| 600×400 | ≤340 | 40-100 | 25-64 | 30 |
| 750×480 | ≤400 | 50-120 | 60-120 | 55 |
| 1300×300 | ≤240 | 20-90 | 30-110 | 75 |
Features of Fine Jaw Crusher
1. Adopting a unique waveform wear-resistant alloy jaw plate, the product has uniform particle size, high yield and long service life of the jaw plate.
2. The crushing chamber is deeper than the traditional jaw crusher chamber, and has obvious advantages such as high crushing ratio and high production capacity.
3. The heavy-duty movable jaw structure with strong swing and small meshing angle can adapt to the crushing of various hard rock minerals and rocks, especially for processing crushed river pebbles.
4. It has more advantages, faster cutting, and larger production capacity.
5. The adjustment of the discharge port is simple and flexible, with convenient operation and maintenance, smooth operation convenient installation, and low operating cost.
Price Range of Fine Jaw Crusher
As compact, lightweight equipment, fine jaw crushers are space-saving and easy to install and transport. Their overall price is relatively moderate, generally ranging from tens of thousands of US dollars. Several factors influence the final cost:
Model and capacity – Larger models cost more.
Manufacturer and region – Competitive markets offer varied pricing.
Material quality and sales model – Direct-sale vs. Distributor price
Optional features – Hydraulic discharge systems add to the cost.
Luoyang Dahua Heavy Industry is a high-tech enterprise with research & development production, sales, and service. Our company not only guarantees the products quality, but also provides perfect after-sales service. Luoyang Dahua has a professional R & D team, a strong after-sales team, from the equipment selection, site inspection, equipment manufacturing, installation, commissioning, delivery and other aspects for your service.