Dispersion Equipment
Fixed Coaxial Dual-Shaft Mixing Kettle
TSJ-1200L fixed coaxial dual-shaft mixing kettle with a 45 kW high-speed dispersing shaft and a 7.5 kW low-speed frame agitator, 1000 L working volume, vacuum and jacketed 304 stainless steel vessel.
Request Specifications & Quote
Prepared from Yushun's TSJ-1200L coaxial dual-shaft mixer parameter sheet dated 2024-12-10. The kettle shares the mixer's process data but has no lifting system. Port sizes and overall dimensions are marked for project confirmation; technical content requires engineering review and is not a performance guarantee.
Product Overview
How the coaxial dual-shaft kettle works
The high-speed toothed disc rotates at up to 1450 rpm and creates strong shear and circulating flow around the disc, wetting and dispersing powder into the liquid phase. The low-speed frame agitator turns at 0–40 rpm and moves the whole batch, including material at the wall and bottom, where its PTFE scrapers keep the heat-transfer surface refreshed. Because both shafts are concentric and independently driven, dispersion and bulk mixing can be balanced for the formulation instead of compromising one for the other.
Fixed version versus lifting version
This kettle and the lifting coaxial mixer share the same technical parameters. The only difference is the lifting system: the fixed version has no hydraulic column, so the cover, shafts and drives remain in position while the vessel is brought underneath. That removes the lift travel, lift motor and lift-related limits, simplifies the installation height and suits a dedicated production position. The lifting version is preferable when several mobile vessels are charged in turn.
Typical applications
The combination is used where a high-viscosity or thixotropic product needs both intense local shear and bulk turnover: pigmented coatings and inks, adhesives and sealants, dye and pigment pastes, battery slurries, and cosmetic or chemical pastes. Vacuum operation is normally specified when the batch must be deaerated or when solvent vapour must be contained.
What to provide for selection
Provide the formulation and solvent system, viscosity and rheology, working batch, vessel dimensions, required dispersion fineness, vacuum and temperature range, explosion-protection classification, discharge and cleaning requirements, and the available installation height. These determine the motor ratings, disc and agitator geometry, seal arrangement, jacket and vacuum scope.
Related equipment
For powder wetting before dispersion, review the high-speed disperser. For high-viscosity bulk mixing without a dispersing shaft, review the double planetary mixer. To discuss a fixed or lifting configuration, send your process requirements.
Equipment configuration
Core Features
- Coaxial dual-shaft layout: a high-speed dispersing shaft runs inside a low-speed frame agitator, each with its own drive.
- 45 kW high-speed motor and 7.5 kW low-speed motor, both variable-frequency controlled.
- Toothed 400 mm high-shear dispersing disc combined with a 304 stainless steel frame agitator fitted with PTFE side and bottom scrapers.
- 1000 L working volume in a 1243 L jacketed 304 stainless steel vessel with wall temperature measurement.
- Vacuum-rated cover and vessel for degassing, with a buffer tank and a full set of cover ports.
- Fixed design without a hydraulic lifting column: the same process parameters as the lifting coaxial mixer, intended for a dedicated installation.
Configuration guide
Technical Specifications
| Model | TSJ-1200L |
|---|---|
| Configuration | Fixed coaxial dual-shaft; no lifting system |
| Working volume | 1000 L (total volume 1243 L) |
| High-speed motor | 45 kW / 4P, 380 V, 50 Hz |
| Low-speed motor | 7.5 kW / 4P, 380 V, 50 Hz |
| High-speed range | 0–1450 rpm, variable frequency |
| Low-speed range | 0–40 rpm, variable frequency |
| Dispersing disc | Toothed high-shear disc, Ø400 mm, 304 stainless steel |
| Low-speed agitator | Frame with side and bottom scrapers, 304 stainless steel + PTFE |
| Vessel | Ø1200 × 1100 mm, 304 stainless steel, 6 mm shell, 4 mm jacket |
| Vacuum | −0.09 MPa |
| Weight | 5000 kg |
Reference specifications require material testing and engineering review. Final configuration is defined in the project technical agreement.
| System | Item | Specification |
|---|---|---|
| Power | High-speed dispersing motor | 45 kW / 4P, 380 V, 50 Hz |
| Power | Low-speed mixing motor | 7.5 kW / 4P, 380 V, 50 Hz |
| Power | Motor explosion protection | Non-Ex / Ex d IIB T4 |
| Power | Motor brand | Domestic (Anhui Wannan) |
| Power | VFD type | General-purpose, frequency and speed display |
| Power | VFD rating | 45 kW, 7.5 kW |
| Power | VFD brand | Domestic (Weichuang) |
| Transmission | Reducer type | Helical gear reducer |
| Transmission | Reducer origin | Domestic (Guomao / Tongli) or imported (SEW) |
| Transmission | Bearing origin | Imported (FAG / SKF) |
| Transmission | Shaft seal | Mechanical seal plus O-ring |
| Transmission | High-speed drive | Belt |
| Transmission | Low-speed drive | Chain |
| Mixing | High-speed range | 0–1450 rpm |
| Mixing | Frame agitator range | 0–40 rpm |
| Mixing | Shaft material | Stainless steel |
| Mixing | Disc material | 304 stainless steel |
| Mixing | Disc type | Toothed high-shear disc, Ø400 mm |
| Mixing | Low-speed paddle material | 304 stainless steel + PTFE |
| Mixing | Low-speed paddle type | Frame with side and bottom scrapers |
| Vessel | Vessel type | Flat bottom, jacketed outer wall, bottom side discharge, casters |
| Vessel | Volume | 1243 L total, 1000 L working |
| Vessel | Inner dimensions | Ø1200 × 1100 mm |
| Vessel | Shell material | 304 stainless steel, 6 mm |
| Vessel | Jacket material | 304 stainless steel, 4 mm |
| Vessel | Jacket design pressure | 0.2 MPa |
| Vessel | Temperature measurement | Vessel wall |
| Vessel | Jacket inlet / outlet | Project-specific (DN to be confirmed) |
| Vessel | Discharge port | Project-specific (DN to be confirmed) |
| Vessel | Vessel fixing | Mechanical clamp |
| Vessel | Forklift provision | Forklift slots at the bottom |
| Cover | Cover type | Dished head |
| Cover | Cover material | 304 stainless steel, 6 mm |
| Cover | Cover openings | Hand hole, light port, sight glass, liquid inlet, vacuum port, vent, vacuum gauge port, dust removal port, nitrogen port |
| Vacuum | Vacuum level | −0.09 MPa |
| Vacuum | Vacuum buffer tank | Fitted to damp pressure fluctuations and stabilise vacuum |
| Vacuum | Vacuum pump | 2X-15 (customer supplied) |
| Control | Control box | Non-Ex / Ex d IIB T4 |
| Control | Control cabinet | Non-Ex / Ex d IIB T4 |
| Control | Operation | Push-button |
| Control | Instrumentation | High-speed speed display, agitator speed display |
| General | Weight | 5000 kg |
| General | Overall dimensions | Project-specific (to be confirmed) |
| Safety | Interlocks and protection | Emergency stop, motor overcurrent trip, vessel-in-position and vacuum interlocks; lifting-related limits are not applicable to the fixed design |
Where it works
Application Industries
- Coatings and Printing Inks
- Pigments and Dyes
- Adhesives and Sealants
- Fine Chemicals
- Battery Slurry
- Cosmetics and Daily Chemicals
Technical questions
Frequently Asked Questions
What is the difference between this kettle and the lifting coaxial mixer?
The process data is the same. The fixed version has no hydraulic lifting column, so the cover and shafts stay in position and the vessel is brought underneath; the lifting mixer raises and lowers its shaft assembly. A fixed unit suits a dedicated line, while a lifting unit suits repeated charging of mobile vessels.
What batch size does the TSJ-1200L handle?
The reference configuration has a 1243 L total volume and a 1000 L working volume. Other sizes are project-specific; provide the required batch, viscosity and vessel dimensions for confirmation.
How are the two shafts controlled?
The high-speed dispersing shaft runs at 0–1450 rpm and the low-speed frame agitator at 0–40 rpm. Both are driven independently through variable-frequency controls, with speed displayed on the panel.
What materials are used?
The reference configuration uses 304 stainless steel for the vessel shell (6 mm), jacket (4 mm), dispersing disc and shaft, with a 304 frame agitator fitted with PTFE scrapers. Other contact materials can be reviewed for the project.
Does it support vacuum and heating or cooling?
Yes. The vessel and cover are rated for −0.09 MPa vacuum, and the outer wall carries a jacket with a 0.2 MPa design pressure for heating or cooling media. The vacuum pump is normally supplied by the customer (2X-15 in the reference sheet).
Is explosion protection available?
Motors and controls can be specified as non-explosion-proof or Ex d IIB T4. The applicable standard, certification scope and marking must be confirmed for the actual solvent system and site.
Is this a disperser or a mixer?
It performs both functions: the high-speed toothed disc wets and disperses powder, while the low-speed frame agitator provides bulk mixing and wall scraping. It is listed with the dispersion equipment because dispersion is the defining high-speed duty.
Engineering consultation
Discuss Your Process Requirements
Tell our engineers about your material, target particle size, viscosity, capacity, and production goals.