VCH Series High-Shear Conical Mixer
The VCH Series is a dry-process single-vessel modification system for high-shear powder mixing, surface coating, and particle spheroidization. A bladed central shaft rotates at tip speeds up to 35 m/s inside a sealed vertical conical chamber — cooling water jacket standard, optional spray nozzle for in-chamber liquid-phase treatment, proprietary pneumatic dome valve for clean discharge. Effective capacity scales from 1.5 L (lab) to 2000 L (production), with VC and VCD configurations extending coverage to 3750 L.
- dry powder encapsulation equipment, dry powder mixing machine, graphite anode powder spheroidizer, high-shear surface coating equipment, lithium battery material dry coating machine, magnetic powder surface modification equipment, particle morphology control equipment, pharmaceutical powder blending machine, single-vessel modification system, spheroidization machine
Specifications
VCH Series — Belt Drive, Tip Speed up to 35 m/s
| Model | Scale | Total Chamber (L) | Effective Volume (L) | Power (kW) |
|---|---|---|---|---|
| VCH-2 | Lab | 3 | ≤1.5 | 0.75 |
| VCH-5 | Lab | 11.4 | ≤4.8 | 5.5 |
| VCH-30 | Pilot | 70 | ≤30 | 7.5 |
| VCH-50 | Pilot | 113 | ≤50 | 15 |
| VCH-100 | Production | 182 | ≤100 | 11 |
| VCH-200 | Production | 437 | ≤200 | 30 |
| VCH-500 | Production | 1179 | ≤500 | 55 |
| VCH-1000 | Production | 2164 | ≤1000 | 110 |
| VCH-2000 | Production | 3417 | ≤2000 | 132 |
VC Series — Hard Gear Reducer (Flange-Mounted), Tip Speed up to 25 m/s
| Model | Scale | Total Chamber (L) | Effective Volume (L) | Power (kW) |
|---|---|---|---|---|
| VC-500 | Production | 1179 | ≤500 | 55 |
| VC-1000 | Production | 2121 | ≤1000 | 55 |
| VC-1500 | Production | 3417 | ≤1500 | 75 |
| VC-2000 | Production | 4533 | ≤2000 | 90 |
VCD Series — Frame-Free Compact Configuration, Tip Speed up to 25 m/s
| Model | Scale | Total Chamber (L) | Effective Volume (L) | Power (kW) |
|---|---|---|---|---|
| VCD-200 | Production | 417 | ≤200 | 15 |
| VCD-500 | Production | 1179 | ≤500 | 45 |
| VCD-1000 | Production | 2121 | ≤1000 | 45 |
| VCD-1500 | Production | 3417 | ≤1500 | 75 |
| VCD-2000 | Production | 4533 | ≤2000 | 90 |
| VCD-3750 | Production | 7427 | ≤3750 | 90 |
Operating Principle

sealed vertical conical chamber with high-speed bladed central shaft,
cooling water jacket (standard),
and optional spray modification nozzle
A bladed central shaft rotates at tip speeds up to 35 m/s inside the sealed vertical conical chamber. The shaft and conical vessel wall work together to drive material upward from the bottom — on reaching the top of the chamber, material falls back under gravity and re-enters the circulation. Impact, friction, and shear act on all particle surfaces with each pass.
Product discharges through a proprietary pneumatic dome valve — sealed, zero powder leakage, no vessel disassembly required. A cooling water jacket maintains precise process temperature throughout the batch. Tip speed is adjustable via inverter across the full operating range.
Processing Modes
- High-Shear Mixing — host and additive powders are homogenized through continuous circulatory flow driven by the high-speed bladed shaft. No solvent, no thermal treatment required. Uniform distribution confirmed within 10 mins processing time.
- Surface Coating — a dense, uniform coating layer is built up on host particles through high-shear contact with guest coating material inside the sealed chamber. Coverage is more continuous and complete versus conventional impact-force or shear-force methods. Optional spray nozzle enables in-chamber liquid-phase treatment.
- Spheroidization — irregular host particles are rounded through repeated mechanical impact and abrasion inside the sealed chamber. No binder required. Particle morphology change confirmed by SEM.

common impact force (left): sparse;
common shear force (center): partial;
VCH mixing and coating (right): dense, continuous surface coverage
Key Features
- Proprietary pneumatic dome valve standard—zero powder leakage, clean discharge without vessel disassembly
- Cooling water jacket for precise process temperature control throughout the batch
- WC-coated contact surfaces — metal contamination isolated from product
- Single-vessel operation — mixing, coating, and spheroidization without material transfer between units
- Optional spray nozzle for in-chamber liquid-phase surface treatment; solvent recovery system available
- Tip speed adjustable via inverter — scalable process parameters from lab to production
Experiment Results
Graphite Spheroidization
Irregular natural graphite powder is processed into spheroidal particles in a single batch. No binder required. Potato-shaped morphology confirmed by SEM.

before (left): irregular flake morphology;
after VCH processing (right): spheroidal particles confirmed by SEM
Surface Coating Comparison
VCH high-shear mixing produces a more complete and continuous coating layer than conventional impact-force or shear-force methods. Denser surface coverage confirmed by SEM cross-section.

Carbon Toner Processing
Carbon toner powder is processed for pre-mixing, morphology modification, and surface coating before extrusion. All three steps completed in a single vessel. Particle shape and coating confirmed by SEM.

Powder Mixing Uniformity
A two-component powder blend reaches uniform distribution within 10 min. No agglomeration observed after processing.

before (left): unmixed two-component powder;
after 10 min in VCH (right): uniform distribution confirmed
Applications
01. Lithium Battery Anode Materials
Graphite spheroidization for improved packing density and electrochemical performance.
02. Battery Cathode & Composite Powders
Pre-mixing, coating, and surface treatment of active materials.
03. Magnetic Materials
Mixing and dry surface modification of NdFeB and bonded magnet powders.
04. Carbon-Based Materials
Morphology control and coating of carbon black, toner, and graphite materials.
05. Pharmaceuticals
Dry blending of active ingredients and functional excipients.
06. Advanced Ceramics
Particle engineering and surface treatment of oxide and non-oxide ceramic powders.
Enquiry
Tell us your material, target particle size, and throughput. We will advise on
model selection and run a trial on your own powder before you commit to equipment.
Yibin Andy Wei — Application Engineer
Email: [email protected]
LinkedIn: Yibin Andy Wei
WhatsApp: +1 380 900 2442
Call Us or Fill the Form
- Jessie Yao
- +86-510-83390800
- +86 18921109791(Wechat)
- [email protected]
- C2, Quantum Industrial Park, Qianzhou Street, Huishan District, Wuxi City, Jiangsu, China


