High reduction in one stage
Intensive impact and inter-particle breakage reduce recirculation demand in suitable applications.
Vertical Shaft Sand Making Machine
Convert rock, mineral feed and aggregate into well-shaped manufactured sand through high-speed vertical shaft impact, controlled collision and intensive material-on-material crushing.
50-500t/h typical line capacity
55-400kW configuration range
8models from 800 to 2500
Selection at a glanceOne platform, eight machine sizes.
Rotor diameter630-1,860 mm
Maximum feed100-200 mm
Main speed470-986 rpm
01 / Technology
Impact energy where it matters
Feed enters through the hopper and distributor. A controlled portion reaches the high-speed rotor, accelerates through its passages and is projected into the surrounding crushing chamber. The remaining feed forms a material curtain. Collision, impact and friction complete the reduction before gravity discharge.
- 1
Metered feeding
The hopper and distributor stabilize flow and prevent sudden loading that can disturb particle shape or increase wear.
- 2
Rapid acceleration
The vertical rotor transfers kinetic energy to part of the feed and directs it through peripheral passages.
- 3
Compound breakage
High-speed particles strike the material curtain and chamber. Repeated impact and friction reduce weak edges and improve cubicity.
- 4
Gravity discharge
Processed material exits from the lower outlet for closed-circuit screening and controlled return of oversize.
Feed hopperDistributorCrushing chamberRotorMain shaft assemblyBaseDrive system
02 / Product advantages
Designed for stable sand production, not occasional crushing
Cronus combines a robust vertical rotor, serviceable chamber and flexible drive options to balance throughput, shape and operating cost.
Improved particle shape
Repeated collision removes flaky edges and supports a more cubical aggregate for concrete and dry mortar.
Energy used productively
Direct vertical-shaft energy transfer limits unnecessary mechanisms and keeps the drive arrangement straightforward.
Accessible wear zone
Inspection doors and replaceable hammers, liners and sealing parts shorten routine maintenance tasks.
Eight-size platform
Models from 800 to 2500 cover compact plants through high-output multi-motor configurations.
Heavy-duty fabrication
Machined shaft components, reinforced housing and controlled assembly support continuous industrial duty.
03 / Model range
Technical specifications
Figures below are transcribed from the supplied Cronus variable-frequency sand machine data sheet. Capacity and final motor selection depend on feed grading, hardness, moisture, target product and circuit design.
| Model | Rotor diameter | Rotor height | Max. feed | Main speed | Recommended drive | Overall dimensions |
|---|---|---|---|---|---|---|
| 800 | 630 mm | 150 mm | <100 mm | 986 rpm | 4-pole, 45 kW | 2,100 x 1,200 x 1,700 mm |
| 1000 | 820 mm | 180 mm | <100 mm | 890 rpm | 6-pole, 55 kW | 2,600 x 1,400 x 1,900 mm |
| 1250 | 1,050 mm | 180 mm | <120 mm | 808 rpm | 6-pole, 110 kW | 2,800 x 1,600 x 2,100 mm |
| 1500 | 1,280 mm | 230 mm | <120 mm | 680 rpm | 6-pole, 160 kW | 3,100 x 1,900 x 2,200 mm |
| 1750 | 1,530 mm | 260 mm | <120 mm | 570 rpm | 8-pole, 200 kW | 3,710 x 2,360 x 2,390 mm |
| 2000 | 1,760 mm | 260 mm | <150 mm | 520 rpm | 8-pole, 250 kW | 4,100 x 2,660 x 2,620 mm |
| 2300 | 1,710 mm | 278 mm | <200 mm | 480 rpm | 2 x 185 / 2 x 200 kW | 5,600 x 2,550 x 3,460 mm |
| 2500 | 1,860 mm | 278 mm | <200 mm | 470 rpm | 2 x 250 kW | 6,000 x 2,800 x 3,600 mm |
Selection note: the supplied sheet contains inconsistent motor notation in one row for models 2300 and 2500. The recommended drive values above use its dedicated drive-configuration row. Confirm all values in the final signed technical proposal.
04 / Applications
From quarried rock to controlled manufactured sand
Correct feed preparation is essential. Share a representative material analysis so Cronus can assess hardness, abrasiveness, moisture and required grading before model selection.
Manufactured sand
Concrete aggregate, asphalt aggregate, dry-mix mortar and controlled fill.
Limestone & dolomite
Moderate-hardness feed for construction sand and aggregate shaping.
Granite & basalt
Hard rock applications requiring abrasion-aware wear-part selection.
Quartz & feldspar
Mineral processing duties where controlled top size and clean feed matter.
Mine tailings
Resource recovery routes evaluated through sample testing and circuit review.
Recycled aggregate
Secondary shaping after metal removal and consistent upstream crushing.
05 / Project evidence
See the machine in real operating conditions
These supplied project clips have been optimized for the web and carry a Cronus watermark. Use them to review machine scale, material flow and workshop inspection access.
Machine inspection
Full walkaround and housing details
Material result
Sand discharge and stockpile condition
Factory acceptance
Workshop assembly and pre-delivery check
06 / Selection guide
Vertical shaft sand machine or conventional VSI?
Both technologies use impact energy, but they fit different duties. The Cronus vertical shaft platform is a strong candidate when a larger accepted feed, robust internal hammers and straightforward mechanical access are priorities. A high-speed VSI can be preferable for final-stage shaping with tightly controlled smaller feed.
Discuss your feed and target grading| Decision factor | Cronus vertical shaft machine | Conventional VSI |
|---|---|---|
| Typical role | Primary/secondary sand making and reduction | Fine crushing and final shaping |
| Accepted feed | Up to 100-200 mm by supplied model | Often requires a smaller, controlled feed |
| Breakage mode | Hammer impact, chamber impact and inter-particle collision | Rock-on-rock or rock-on-anvil acceleration |
| Maintenance focus | Hammers, liners, bolts, seals and bearings | Rotor tips, anvils, distributor and wear plates |
| Best reason to choose | Flexible top size and rugged, accessible construction | High-speed shaping of pre-crushed feed |
07 / Wear parts
Original parts, supported by our own foundry
Correct metallurgy and dimensional fit are essential to rotor balance, safe fastening and predictable maintenance. Cronus supplies machine-matched parts with traceable production and practical pricing.
Hammers & impact elementsSelected alloy and heat treatment for the material duty.
Chamber linersOriginal geometry protects the housing and maintains the intended crushing zone.
Bolts & fastenersMatched dimensions and grades support secure installation.
Bearings & sealsSpecified bearing sets and rubber oil seals for the main shaft assembly.
Factory assuranceOwn foundry capability, dimensional inspection, quality documentation and direct pricing.
Built on more than 50 years of equipment manufacturing
Cronus is a subsidiary of Guilin Mining Machinery, founded in 1973. From casting and machining to assembly and service, the group combines long-term manufacturing practice with modern quality systems and international project support.
1973manufacturing origin
50+years of experience
ISO & CEcompliance systems
Patentscontinuous engineering
Company capability
Manufacturing depth that reduces project risk
Equipment quality is shaped before final assembly. Cronus coordinates design review, casting, machining, rotor and shaft inspection, assembly, no-load testing, packing and commissioning support.
- Recognized high-tech enterprise
- ISO quality, environmental and occupational health systems
- CE documentation for international markets
- Invention and utility model patent portfolio
- Own foundry and large-component machining capability
08 / Lifecycle support
From material evaluation to dependable operation
A sand plant succeeds as a system. Cronus can coordinate the machine with feeding, screening, conveying, dust control and return circuits.
Application review
Feed analysis, target grading, moisture, abrasiveness and capacity confirmation.
Process design
Flowsheet, equipment matching, layout interface and power configuration.
Factory inspection
Manufacturing checkpoints, assembly records and pre-delivery test support.
Commissioning
Installation guidance, trial operation, feed tuning and operator training.
Ongoing support
Remote diagnosis, planned wear-part supply and maintenance recommendations.
Four operating rules that protect output and service life
Keep feed within the selected model's limit. Maintain a uniform feed rate. Inspect hammers, liners and bolts on a planned schedule. Keep bearing temperature below 75°C and investigate any trend increase promptly.
09 / FAQ
Answers before you specify the machine
Final selection should always follow material testing and a process review. These answers establish the practical starting point.
Ask the engineering teamWhat is the main working principle?
A vertical rotor accelerates part of the feed and projects it into the crushing chamber and material curtain. Impact, particle-on-particle collision and friction reduce and shape the material.
Which materials can be processed?
Typical candidates include limestone, dolomite, granite, basalt, quartz, feldspar, mineral tailings and recycled aggregate. Suitability depends on hardness, abrasiveness, moisture and contaminants.
What feed size is permitted?
The supplied Cronus model sheet lists maximum feed from under 100 mm on models 800/1000 to under 200 mm on models 2300/2500. Stable grading is as important as nominal top size.
Can it produce concrete-grade manufactured sand?
Yes, when the crusher is integrated with appropriate screening, controlled recirculation and, where required, fines classification or washing. The complete grading target should be supplied during design.
How is capacity determined?
Capacity depends on model, feed hardness, bulk density, moisture, feed grading, reduction ratio, rotor configuration and screen circuit. A representative sample gives the best basis for selection.
What auxiliary equipment is normally required?
A controlled feeder, upstream crusher where required, vibrating screen, return conveyors, product conveyors, magnetic separation for recycled feed and dust collection form a typical line.
How does it differ from a VSI?
The Cronus vertical shaft machine uses hammers and a robust impact chamber and accepts larger feed by model. A conventional high-speed VSI is frequently selected as a final shaping stage for smaller pre-crushed feed.
Which parts wear most often?
Hammers, chamber liners, fastening bolts, seals and bearings require planned inspection. Actual replacement intervals vary widely with silica content, abrasiveness and daily operating hours.
How should the machine be fed?
Use a controlled and continuous feed. Avoid sudden surges, prolonged no-load operation and tramp metal. Interlock the feeder with motor load and upstream/downstream equipment where practical.
What bearing temperature is acceptable?
Keep bearing temperature below 75°C. Stop and investigate abnormal vibration, lubrication problems, sealing failure or a sustained rising temperature trend.
Can Cronus supply a complete production line?
Yes. Cronus can match feeders, crushers, screens, conveyors, dust collection and control interfaces to create a coordinated sand-making circuit.
What information is needed for a quotation?
Provide material name, feed size distribution, moisture, hourly capacity, target product sizes, working hours, local voltage/frequency, site constraints and photos or a material analysis when available.
Start your project
Get a model and process recommendation
Send your feed and production targets. A Cronus application engineer will review the duty and prepare a practical configuration instead of a generic price list.
Phone / WhatsApp+86 199 2122 1418Emailsales@shcronus.com
OfficeRoom 801, Building 2, Shanghai Zhicheng, No. 8666 Hunan Highway, Pudong New Area, Shanghai, China