Vertical Shaft Sand Maker | XingQing Machinery

Product Overview

The Vertical Shaft CNC Sand Maker is a VSI-type crusher specifically designed for sand making with CNC precision digital control. The PLC control system enables automated operation, real-time monitoring of parameters such as vibration, bearing temperature, and motor current, and intelligent parameter optimization. The high-speed rotor (tip speed up to 80 m/s) accelerates materials to create high-energy impacts for efficient crushing and cubical shaping. With a capacity range of 50-650 t/h, it is ideal for large-scale manufactured sand production lines and aggregate shaping applications. The machine features a wear-resistant crushing chamber, dual lubrication system, and hydraulic cover opening for easy maintenance.

Working Principle

Material Feeding

Materials enter the feed hopper and are distributed evenly to the center of the high-speed rotor via the feed tube. The CNC control system optimizes the feed rate to ensure uniform material distribution, preventing overload and maximizing crushing efficiency. A vibrating feeder or belt feeder supplies material consistently.

High-Speed Acceleration

The motor drives the rotor to rotate at high speed (1200-2000 rpm according to model) via V-belt or direct drive. Materials entering the rotor are rapidly accelerated outward by centrifugal force, reaching linear speeds of 50-80 m/s at the rotor tip. The CNC system maintains precise rotor speed control for consistent crushing energy.

Impact Crushing and Shaping

Accelerated materials exit the rotor at high speed and impact the surrounding material curtain (rock-on-rock mode) or anvil ring (rock-on-iron mode). The high-energy impact breaks materials along natural fracture lines, producing cubical particles. Further inter-particle attrition in the crushing chamber achieves superior shaping for the final product.

Crushing Process

Feed Hopper → Rotor Center Distribution → Centrifugal Acceleration (50-80 m/s) → Rock-on-Rock / Rock-on-Iron Impact → Inter-Particle Attrition Shaping → Final Discharge

Technical Parameters

Model	Rotor Dia. (mm)	Max Feed Size (mm)	Capacity (t/h)	Power (kW)	Rotor Speed (rpm)	Weight (t)	Overall Size (L×W×H mm)
PLC-700	700	35	50-100	45-75	1600-2000	6.5	3500×2200×2800
PLC-800	800	40	80-160	75-110	1400-1800	8.2	3800×2400×3000
PLC-900	900	45	120-240	110-160	1300-1700	10.5	4200×2600×3200
PLC-1000	1000	50	180-350	160-220	1200-1600	13.8	4800×2900×3600
PLC-1100	1100	55	280-480	220-315	1100-1500	17.5	5200×3100×3900
PLC-1200	1200	60	380-650	315-450	1000-1400	22.0	5600×3400×4200

※ Capacity varies with material type, feed size, and moisture content. Power range is for reference; actual selection depends on material characteristics and required output gradation. Technical data subject to change without prior notice.

Key Components

Component	Material / Spec	Function
Rotor Assembly	High-strength alloy steel (40Cr / 42CrMo), dynamically balanced	Accelerates materials to high speed through centrifugal force for impact crushing
Crushing Chamber	Wear-resistant steel lining plates, HMX composite material	Provides impact surface and inter-particle attrition zone for material crushing and shaping
Feed Hopper	Q235 steel plate with wear-resistant lining	Receives and directs materials into the rotor center for uniform distribution
Anvil Ring (Rock-on-Iron)	High-chromium alloy cast iron (Cr26/Cr30)	Provides fixed impact surface for material breakage in rock-on-iron crushing mode
Material Curtain (Rock-on-Rock)	Built-in material shelf with wear plates	Forms a natural material curtain around the chamber for rock-on-rock self-impact crushing
Main Shaft Assembly	40Cr alloy steel forging, precision bearings (SKF/FAG)	Transmits motor power to rotor, supports high-speed rotation and radial/axial loads
Lubrication System	Dual oil pump circulation + oil cooler + filter	Continuous oil supply to bearings, cooling and filtration for long service life
Base Frame	Q235 channel steel / H-beam welded	Supports the entire machine, provides vibration damping and stable foundation

Product Features

CNC Precision Control

PLC + touch screen control system realizes automated operation, real-time monitoring of vibration, bearing temperature, and oil level, with parameter optimization for consistent product quality.

Excellent Particle Shape

Rock-on-rock crushing principle produces cubical sand with high crushing ratio and minimal flaky/needle-like content, meeting high-grade concrete aggregate standards.

Wear-Resistant Design

High-chromium alloy wear parts (Cr26/Cr30), HMX composite wear-resistant lining, and optimized chamber geometry extend service life and reduce replacement frequency.

Low Operation Cost

Dual oil pump circulation lubrication system with oil cooling and filtration reduces bearing wear. Intelligent power management lowers energy consumption per ton of finished product.

Intelligent Monitoring

Integrated vibration sensors, temperature sensors, and motor current monitoring enable fault prediction, automatic shutdown protection, and remote operation via the CNC system.

Wide Application

Suitable for crushing limestone, granite, basalt, river pebble, diabase, andesite, quartzite, iron ore and other materials with hardness up to Mohs 8.

Application Fields

Construction Sand Production

Produces high-quality manufactured sand (M-sand) for concrete and mortar applications. Output fineness modulus 2.5-3.2, meeting GB/T14684 and ASTM C33 standards for construction aggregate.

Highway and Railway

Aggregate shaping for highway pavement (base course and surface layer) and high-speed railway track ballast. Produces cubical aggregates with excellent interlocking properties for durable road construction.

Concrete Mixing Station

Fine aggregate preparation for commercial concrete and precast components. Consistent particle gradation ensures concrete workability and compressive strength. Suitable for grade C30-C80 concrete production.

Mining Fine Crushing

Tertiary and quaternary fine crushing for mineral processing applications. Handles iron ore, copper ore, gold ore, and non-metallic minerals. High reduction ratio reduces downstream ball mill loading.

Manufactured SandAggregate ShapingConcrete AggregateHydroelectric DamMining BeneficiationConstruction Waste Recycling

Selection Advice

Material characteristics determine model selection: For materials with Mohs hardness ≤5 (limestone, dolomite), choose rock-on-iron mode for higher efficiency. For hard materials with Mohs hardness 5-8 (granite, basalt), choose rock-on-rock mode for lower wear cost.
Feed size and moisture control: Max feed size ranges from 35-60mm by model. Feed moisture should be below 5% for optimal efficiency. For wet materials, consider adding dryer or using closed-circuit system.
Rotor speed and product fineness: Higher rotor speed produces finer sand but increases wear. For coarse sand (FM 3.0-3.5), use lower rotor speed. For fine sand (FM 2.5-3.0), use higher speed. The CNC system enables stepless speed adjustment.
Crushing mode selection: Rock-on-rock mode is recommended for sand making (better particle shape, lower wear cost). Rock-on-iron mode is recommended for shaping (higher crushing ratio, suitable for hard materials). The chamber can be converted between modes.
Closed-circuit operation: For maximum sand production, operate with a screen and return oversized materials to the sand maker. Typical circulating load is 30-50% for optimal efficiency and product quality.
Auxiliary equipment: Install metal detector and iron remover before the sand maker to prevent damage. Use air screen or sand washing equipment to control fines content (≤10%) in finished sand.

Vertical Shaft Sand Maker Vertical Shaft Sand Maker