Purchasing Guide: How to Choose the Right Twin Screw Extruder
Barrel for Lithium Battery Mixing
When sourcing twin screw extruder barrels for lithium battery slurry mixing, engineers and buyers face three
main challenges:
material compatibility, service life, and replacement accuracy.
ZHITIAN provides a comprehensive OEM and custom solution, designed
to reduce maintenance frequency while maintaining slurry purity and
mixing consistency.
1. Material Options Tailored for Battery Applications
For continuous lithium battery slurry systems, barrel materials
must resist chemical corrosion from NMP solvents and abrasion from conductive agents like carbon black and CNTs.
ZHITIAN offers two proven liner materials:
| Liner Material | Base Type | Key Features | Application |
|---|
| ZT615 Ni-Cr Alloy | Nickel-Chromium Alloy | Excellent corrosion resistance, stable under solvent-rich
conditions | Ideal for high-purity cathode slurry |
| WR13 High-Cr Alloy | Iron-Based Alloy | Cost-effective, good mechanical wear resistance | Suitable for general-purpose slurry mixing |
Both liners are precision fitted into a 304 stainless steel barrel shell, ensuring structural
stability and long-term reliability under thermal cycling.
2. OEM-Compatible Replacement — Minimize Downtime
ZHITIAN specializes in OEM-equivalent barrels for major twin screw mixer brands used in lithium slurry
production.
Each barrel is manufactured according to original design parameters or reverse-engineered drawings, ensuring:
Perfect alignment with existing screw and gearbox systems
No need for on-site adjustment
Immediate installation and production restart
For global buyers, this means shorter lead time, lower replacement cost, and stable process continuity.
3. Process Performance and Thermal Stability
The inner cooling channels of ZHITIAN barrels are optimized for thermal uniformity during high-viscosity slurry processing.
This ensures:
Even temperature distribution
Consistent slurry viscosity
Reduced binder degradation (PVDF, CMC, SBR systems)
The smooth, precision-machined bore enhances material flow and
minimizes dead zones — a critical factor for slurry uniformity in cathode/anode material manufacturing.
4. Quality Control and Global Supply
Every ZHITIAN barrel undergoes:
Dimensional inspection within ±0.02 mm
Liner bonding integrity testing
Hydraulic pressure and cooling channel leakage test
ZHITIAN supplies both OEM replacement parts and custom-designed barrels for battery material manufacturers worldwide, with proven
performance in:
China, South Korea, Germany, and Italy
Lithium material pilot lines and full-scale production plants
5. Key Purchasing Advantages
OEM replacement compatibility
Lower total cost of ownership
Extended wear and corrosion life
Proven in battery material mixing environments
Rapid customization and delivery
FAQ
Q1: Can ZHITIAN manufacture barrels based on samples or worn parts?
Yes. We provide reverse engineering and 3D scanning services to replicate and optimize OEM designs.
Q2: Which liner should I choose for my lithium slurry system?
Use ZT615 Ni-Cr alloy if your process involves strong solvents or high-purity
requirements.
Use WR13 High-Cr alloy if you need a cost-effective solution with good wear resistance.
Q3: Is the barrel compatible with European or Japanese twin screw
mixers?
Yes. ZHITIAN produces barrels for various OEM models, including custom configurations for imported equipment.
Q4: Can you supply a complete barrel + screw + gearbox package?
Absolutely. ZHITIAN provides integrated twin screw extruder component solutions, including screws, barrels, and gearboxes.
