Calcite
Coatings, plastic, rubber, paper and artificial marble fillers.
Industrial Grinding Mills Built Around Your Final Powder
CRGM ultrafine ring roller mills for high-value fine powder and CRRM Raymond mills for efficient conventional mineral grinding, engineered by a team with more than 50 years of manufacturing experience.
Typical project targets: CRGM 300-3000 mesh* | CRRM 40-400 mesh*
1973Parent company founded
50+ yearsPowder equipment experience
CRGM 60-125Four published ultrafine models
CRRM 1280-2500Scalable Raymond mill platform
Manufacturing depthMachining, welding, assembly and test capability for complete powder lines.
About CRONUS
A Shanghai subsidiary backed by Guilin mining machinery expertise since 1973
Shanghai Cronus Machinery Co., Ltd. is a wholly-owned subsidiary of Guilin Mining Machinery Co., Ltd. The parent company has spent more than five decades developing grinding, classification and complete mineral processing systems.
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Technology enterpriseHigh-tech recognition and patented equipment.
02
Certified managementCE and ISO management documentation.
03
Application engineeringTesting, selection, installation and spare-parts service.
Product center
Two dedicated product pages for two different powder targets
Review each mill's working principle, specifications, advantages, application industries, projects, customer sites, visits and FAQ.
Processing materials
Common minerals for CRGM and CRRM production lines
Final suitability depends on hardness, moisture, abrasiveness, chemistry and target particle distribution.
Limestone
Building materials, desulfurization and general mineral filler.
Dolomite
Glass, ceramics, metallurgy and construction fillers.
Barite
Drilling, high-density filler and coating applications.
Kaolin
Ceramics, paper coating, rubber and paint.
Talc
Plastic, coating, ceramic and cosmetic fillers.
Gypsum
Wallboard, plaster, cement and industrial powder.
Bentonite
Foundry, drilling, pelletizing and absorbent products.
Project evidence
Equipment in real production environments
CRGM SITE
Ultrafine mineral powder line
Integrated grinding, classification, cyclone separation and pulse collection.
View CRGM cases
CRRM PROJECT
Three CRRM1620A petcoke lines
A multi-line layout demonstrating practical capacity expansion.
View CRRM casesLatest technical news
Useful grinding mill knowledge
Original project-selection, operation and application briefs.
How to choose an ultrafine grinding mill for calcium carbonate powder
Start with D97, top-cut residue, whiteness, coating requirements and hourly output before comparing CRGM model size.
Ask CRONUSRaymond mill price: which configuration items change the project budget?
Main mill size, classifier, crusher, feeder, conveying, dust collection and electrical scope all affect a Raymond mill quotation.
Ask CRONUSMesh versus micron: a practical guide for mineral grinding projects
Mesh is a screening reference while micron values describe particle dimensions more directly; D97 adds a distribution-based quality target.
Ask CRONUSRaymond mill classifier adjustment for stable 325-mesh powder
Classifier speed, airflow, feed rate and grinding condition must be balanced rather than adjusted independently.
Ask CRONUSWhy coatings and masterbatch projects often require ultrafine mineral filler
Fine particles can improve surface finish, dispersion and filling efficiency when the particle distribution is tightly controlled.
Ask CRONUSWhat raw material data does a stone grinding mill manufacturer need?
A useful inquiry includes mineral name, hardness, moisture, feed size, chemistry, target fineness, output and local power standard.
Ask CRONUSStart a project
Send your material and final powder target
Our engineers will screen the CRGM and CRRM routes before recommending a model.