Two stages in one
Large crushing ratio combines coarse reduction and fine crushing in a single pass.
Hammer Crusher
Coarse and fine crushing in one compact machine, engineered for limestone, coal, gypsum and other medium-hard materials.
PC series crushers use a high-speed rotor and replaceable grate system to produce a controlled, fine discharge with a simple, maintainable structure.
5–30 t/hVerified standard range
Up to 350 mmMaximum feed
5–20 mmTypical discharge
≤100 MPaRecommended compressive strength
Simple investment
Compact construction, fewer auxiliary machines and a lower total equipment cost.
Fine, uniform product
Replaceable grate bars help control discharge size for aggregates and stone powder.
Small footprint
A practical solution for workshops and production lines where installation space matters.
How it works
Impact, rebound and screening in one crushing chamber
The motor drives the main shaft through a V-belt. As the rotor accelerates, pivoted hammers extend under centrifugal force. Feed entering the chamber is struck at high speed, then repeatedly broken against the impact surfaces and liners.
Material small enough to pass through the lower grate is discharged. Oversized particles remain in the chamber for further impact until they reach the selected size. This closed internal path explains the crusher’s high reduction ratio and fine product.
1Controlled feed
2High-speed impact
3Repeated reduction
4Grate-controlled discharge
Machine range
Choose the right hammer crusher
From compact workshop machines to heavy-duty quarry configurations, Cronus matches rotor size, grate opening and motor power to the actual material and target capacity.
Compact PC Series
For laboratories, pilot plants, small mines and low-capacity aggregate production.
- Low installation height
- Simple belt drive
- Easy wear-part access
Standard PC Series
Balanced capacity and footprint for limestone, coal, brick, gypsum and mineral processing.
- Replaceable liners
- Adjustable product size
- 5–30 t/h verified range
Heavy Hammer Crusher
Reinforced configuration for larger feed, higher throughput and continuous duty.
- Heavy rotor assembly
- Reinforced housing
- Project-specific design
Technical data
PC series reference specifications
Values marked “configured” are finalized after material testing and process review. The first three rotor configurations are verified from the supplied Cronus operating manual.
| Sales model | Rotor Ø × width | Speed | Max feed | Discharge | Capacity | Motor | Hammers | Overall dimensions |
|---|---|---|---|---|---|---|---|---|
| PC300×400 | Ø400 × 300 mm | 1,100 r/min | <100 mm | 5–10 mm | 5–13 t/h | 11 kW | 16 | 900 × 670 × 860 mm |
| PC400×600 | Ø600 × 400 mm | 1,000 r/min | <220 mm | 5–15 mm | 10–20 t/h | 18.5 kW | 20 | 1,200 × 1,050 × 1,200 mm |
| PC600×800 | Ø800 × 600 mm | 900 r/min | <350 mm | 5–20 mm | 18–30 t/h | 45 kW | 28 | 2,360 × 1,490 × 1,415 mm |
| PC800×1000 | Ø1000 × 800 mm | Configured | Material-based | Grate-based | Configured | Configured | Configured | Project-specific |
| PC1000×1200 | Ø1200 × 1000 mm | Configured | Material-based | Grate-based | Configured | Configured | Configured | Project-specific |
Model names may also be written by rotor diameter first (for example, PC400×300). Final selection depends on bulk density, moisture, feed distribution, hardness and required output.
Applications
Built for medium-hard, low-moisture materials
Best performance is achieved with evenly fed material, compressive strength up to 100 MPa and moisture generally below 10–15%.
Limestone
Aggregate, cement and lime preparation
Medium-hard stone
Construction aggregate and road base
Dolomite & gypsum
Mineral and building-material processing
Coal & friable minerals
Fuel preparation and industrial processing
MiningCementMetallurgyChemicalsCeramicsRecyclingConstructionRefractory materials
Wear-part accessReplaceable components simplify planned maintenance.
Wear parts & spares
Original parts, controlled metallurgy
Wear life depends on feed hardness, abrasiveness, moisture and operating practice. Cronus supplies original-dimension parts from its own casting resources, with material selection matched to the duty.
Hammers
High-manganese steel or high-chromium alloy; the primary consumable in the crushing chamber.
Liners & grate bars
Protect the housing and control final particle size through the selected grate opening.
Rotor discs & pins
Precision-matched rotor components designed to maintain stable rotation and hammer movement.
Bearings & guard plates
Critical support and protection parts supplied to original assembly dimensions.
- Original fit and traceable specifications
- Own casting capability and material control
- Quality inspection before dispatch
- Competitive factory-direct pricing
Manufacturing references
Machines built, inspected and prepared for delivery
Every configuration is reviewed against feed size, target product, capacity and site conditions before production release.
About Cronus
More than 50 years of mineral equipment manufacturing behind every machine
Cronus is the international business subsidiary of Guilin Mining Machinery, a manufacturer founded in 1973. The group combines equipment engineering, casting, machining, assembly, testing and global project support.
Its manufacturing heritage spans more than five decades, supported by enterprise technology capabilities, patented solutions and certified quality systems. Cronus connects this production base with international customers from its Shanghai operation.
1973Manufacturing heritage since
50+Years of equipment experience
ISOQuality management system
CEConformity experience for export equipment
Lifecycle support
Support from material review to long-term operation
A crusher is only productive when the complete process is right. Our team reviews the material, feed control, foundation, discharge arrangement, dust control and maintenance access before confirming the configuration.
Discuss your process- 01
Application review
Material, capacity, moisture, feed size and target product analysis.
- 02
Engineering & production
Configuration confirmation, manufacturing, quality inspection and test run.
- 03
Delivery & commissioning
Foundation guidance, installation support, alignment and safe start-up.
- 04
Training & maintenance
Operating checks, lubrication, wear inspection and preventive maintenance.
- 05
Parts & technical response
Original spares, remote troubleshooting and field support when required.
FAQ
Hammer crusher questions, answered
Practical answers for selection, installation and maintenance.
What materials can a hammer crusher process?
It is suitable for limestone, coal, gypsum, dolomite, brick, slag and other soft to medium-hard materials. The supplied manual recommends compressive strength not exceeding 100 MPa.
What moisture level is acceptable?
For stable discharge, moisture should generally remain below 10–15%. Sticky or wet feed can bridge the grate openings and reduce capacity.
How is the final particle size controlled?
The lower grate opening is the primary control. Rotor speed, hammer condition, feed rate and material properties also influence the finished size.
Can one machine perform coarse and fine crushing?
Yes. The high reduction ratio and repeated impact path can replace separate coarse and fine stages in suitable applications.
How do I select the right model?
Provide material name, compressive strength, bulk density, moisture, maximum feed size, required output size and hourly capacity. Cronus will confirm the rotor, motor and grate configuration.
What are the main wear parts?
Hammers consume most frequently. Liners, grate bars, rotor discs, pins, bearings and housing guard plates should also be included in the maintenance plan.
Which hammer material should I choose?
High-manganese steel suits impact-dominant duties, while high-chromium alloy offers higher abrasion resistance. The best choice depends on hardness, silica content and tramp material risk.
How often should hammers and grate bars be inspected?
Inspect them after shutdown on a schedule based on operating hours and material abrasiveness. Uneven hammer wear should be corrected in balanced sets to protect the rotor and bearings.
What feeding conditions are required?
Use a controlled, even feed. Remove uncrushable metal and avoid overfeeding, which can overload the motor and fill the crushing chamber.
Does the machine require a concrete foundation?
Yes. The foundation must consider machine loads, vibration isolation and unobstructed discharge. Final foundation drawings are supplied with the selected model.
Can Cronus supply a complete crushing line?
Yes. Feeders, conveyors, magnetic separation, dust collection, screens and downstream grinding equipment can be integrated around the crusher.
What information is included with a quotation?
A technical proposal can include model selection, key specifications, motor power, scope of supply, delivery schedule, price, foundation requirements and recommended spare parts.
Start your project
Send us your material and capacity
Our application team will recommend a model, grate range, motor and supporting equipment for your process.
Phone / WhatsApp+86 199 2122 1418
Emailsales@shcronus.com
OfficeRoom 801, Building 2, Shanghai Zhicheng, No. 8666 Hunan Highway, Pudong New Area, Shanghai, China