DSH Series
DSH Double Screw Conical Mixer
Conical mixer using compound screw rotation and revolution for fast, uniform powder, granule, and liquid mixing.
- Available in single-screw, double-screw, or triple-screw configurations
- Optional flying knives and spray atomization
- Manual or pneumatic discharge valve options
- Screw ribbon variant available for lift-and-fold mixing
Mixing Equipment16
Standard Double-Screw Models
0.1-30 m³
Total Volume Range
1 / 2 / 3
Screw Configuration Options
Specifications
Technical parameters
Double-Screw Type
| Model | Total Volume (m³) | Load Factor | Equipped Power (kW) | Operating Conditions | Overall Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| DSH-0.1 | 0.1 | ≤0.6 | 1.5 | Room temp/pressure, dust seal | 1569×702 | 250 |
| DSH-0.3 | 0.3 | ≤0.6 | 2.2 | Room temp/pressure, dust seal | 1929×920 | 550 |
| DSH-0.5 | 0.5 | ≤0.6 | 3 | Room temp/pressure, dust seal | 2322×1124 | 660 |
| DSH-1.0 | 1.0 | ≤0.6 | 4 | Room temp/pressure, dust seal | 2869×1480 | 1200 |
| DSH-1.5 | 1.5 | ≤0.6 | 5.5 | Room temp/pressure, dust seal | 3140×1633 | 1350 |
| DSH-2.0 | 2.0 | ≤0.6 | 5.5 | Room temp/pressure, dust seal | 3489×1816 | 1500 |
| DSH-3.0 | 3.0 | ≤0.6 | 7.5 | Room temp/pressure, dust seal | 3747×2210 | 2300 |
| DSH-4.0 | 4.0 | ≤0.6 | 11 | Room temp/pressure, dust seal | 4362×2280 | 2520 |
| DSH-5.0 | 5.0 | ≤0.6 | 15 | Room temp/pressure, dust seal | 4576×2402 | 3000 |
| DSH-6.0 | 6.0 | ≤0.6 | 15 | Room temp/pressure, dust seal | 4900×2582 | 3150 |
| DSH-8.0 | 8.0 | ≤0.6 | 18.5 | Room temp/pressure, dust seal | 5406×2805 | 4500 |
| DSH-10 | 10 | ≤0.6 | 20.7 | Room temp/pressure, dust seal | 5795×3018 | 5500 |
| DSH-15 | 15 | ≤0.6 | 24.2 | Room temp/pressure, dust seal | 6475×3450 | 6600 |
| DSH-20 | 20 | ≤0.6 | 41 | Room temp/pressure, dust seal | 7535×3805 | 7000 |
| DSH-25 | 25 | ≤0.6 | 41 | Room temp/pressure, dust seal | 7995×4078 | 8500 |
| DSH-30 | 30 | ≤0.6 | 52.5 | Room temp/pressure, dust seal | 8385×4330 | 9200 |
Screw Ribbon Mixer Variant
| Model | Total Volume (m³) | Load Factor | Equipped Power (kW) | Operating Conditions | Overall Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| DSH-0.3 | 0.3 | ≤0.6 | 2.2 | Room temp/pressure, dust seal | 1929×920 | 320 |
| DSH-0.5 | 0.5 | ≤0.6 | 4 | Room temp/pressure, dust seal | 2322×1124 | 410 |
| DSH-1.0 | 1.0 | ≤0.6 | 7.5 | Room temp/pressure, dust seal | 2869×1480 | 900 |
| DSH-1.5 | 1.5 | ≤0.6 | 11 | Room temp/pressure, dust seal | 3140×1633 | 1200 |
| DSH-2.0 | 2.0 | ≤0.6 | 11 | Room temp/pressure, dust seal | 3489×1816 | 1300 |
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ZPG SeriesDrying Equipment
ZPG Vacuum Rake Dryer
Horizontal batch vacuum dryer with a scraper-blade rake for pastes, paste-like, and powdery materials.
View specificationsEngineering Advantages
Built for demanding vacuum drying duty
Four Combined Mixing Motions
Circumferential flow, spiral rise, radial discharge, and gravity descent combine inside the cone to generate convection, shearing, and diffusion simultaneously.
Rapid, Uniform Mixing
Compound screw rotation and revolution mix powder-powder, powder-granule, powder-liquid, and liquid-liquid combinations quickly and evenly.
Flexible Screw Configurations
Choose single-screw, double-screw, or triple-screw arrangements to match mixing intensity and throughput to your process.
Optional Flying Knives & Spray Atomization
Add flying knives to break up agglomerates or spray atomization nozzles for liquid addition, tailoring the mixer to special process requirements.
Manual or Pneumatic Discharge
Select a manual or pneumatic discharge valve to match your operating environment and automation level.
Screw Ribbon Variant Available
A screw ribbon configuration pairs a central lifting screw with an outer ribbon rotating at the same speed, for materials that benefit from a lift-and-fold action.
Scalable Motor Power
Motor power can be increased beyond standard specification for heavy-duty or high-viscosity material handling.
Sixteen Standard Sizes
Total volumes from 0.1 m³ to 30 m³ across sixteen standard double-screw models make it straightforward to match capacity to batch size.
Working Principle
The vacuum rake drying cycle
- STEP 01
Charge Components
Powder, granule, or liquid components are charged into the conical vessel through the top feed port.
- STEP 02
Screw Rotation & Revolution
The screws simultaneously rotate on their own axis and revolve around the cone, generating compound motion within the material bed.
- STEP 03
Compound Motion Mixing
Circumferential flow, spiral rise, radial discharge by centrifugal force, and gravity-driven descent combine to produce convection, shearing, and diffusion.
- STEP 04
Optional Flying Knife or Spray Pass
Where fitted, flying knives break up agglomerates or spray atomization introduces liquid, integrated into the same mixing cycle.
- STEP 05
Discharge Blend
Once target uniformity is reached, the manual or pneumatic discharge valve releases the finished blend from the cone base.
Structure Diagram
Inside the DSH double screw conical mixer

Cross-section of the DSH conical mixer showing the twin orbiting screws inside the cone body, the drive assembly at top, and the discharge valve at the cone base.
Key Components
- Orbiting Screws
- Conical Vessel
- Discharge Valve
Application Industries
Industries relying on the ZPG series
Chemical & Pesticide
- Mixing combined with reaction, drying, or cooling
- Pesticide and dyestuff formulation
- Petroleum and metallurgy process materials
Pharmaceutical
- Powder-liquid mixing for formulations
- Consistent blend uniformity for batch records
- Manual or pneumatic discharge for controlled handling
Confirm documentation requirements with our engineers before specifying for regulated production.
Building Materials & Metallurgy
- Powder-granule blending for construction materials
- Metallurgical powder mixing
- Heavy-duty material handling with upgraded motor power
Why Choose Ruibo
Reasons processors specify Ruibo
Fast, Uniform Mixing by Design
Four combined motions inside the cone reach uniform mixing faster than single-action mixers, cutting cycle time per batch.
Configurable Screw Count
Single-screw, double-screw, or triple-screw arrangements let you dial in mixing intensity to match your material and batch size.
Built for Special Process Steps
Optional flying knives and spray atomization integrate agglomerate breakup or liquid addition directly into the mixing cycle.
Discharge Options to Match Your Line
Manual or pneumatic discharge valves let you match automation level and handling requirements to your production environment.
Screw Ribbon Variant for Lift-and-Fold Blending
A central screw and outer ribbon rotating in tandem give a distinct lift-and-fold action for materials that need gentler handling.
Sixteen Standard Sizes
Total volumes from 0.1 m³ to 30 m³ across sixteen standard models make it straightforward to match capacity to production demand.
Materials Handled
FAQ
Common questions about the ZPG series
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