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Customization
zhitian
A twin screw extruder barrel is the core pressure-bearing and wear-resisting component of a twin screw extrusion system.
It directly determines material residence stability, dispersion efficiency, and long-term operational reliability.
At ZHITIAN, we design and manufacture twin screw extruder barrels with a strong focus on material behavior, wear mechanisms, and real production conditions, rather than relying on a single generic solution.
In actual extrusion processes, barrel wear is rarely caused by a single factor.
Instead, abrasive wear, adhesive wear, corrosion, and thermal fatigue often occur simultaneously.
This is why conventional nitrided steel barrels may fail prematurely under:
High filler content formulations
Glass fiber or mineral reinforced compounds
Petrochemical and chemical granulation processes
ZHITIAN addresses these challenges by offering material- and process-matched barrel solutions, rather than one-size-fits-all designs.
1. Multiple Material Options
Nitrided steel barrels (38CrMoAlA) for standard applications
Laser cladding barrels with nickel-based tungsten carbide alloys for high wear zones
Bimetallic alloy liners for extreme abrasion and corrosion environments
2. Optimized Manufacturing Process
Strict quenching & tempering before nitriding
Controlled laser cladding with metallurgical bonding
Precision CNC machining to ensure bore alignment and dimensional stability
3. Long-Term Stability
ZHITIAN barrels are designed to minimize deformation, cracking, and premature wear, ensuring consistent extrusion performance over extended service life.
Plastic compounding
Petrochemical granulation
Masterbatch production
Engineering plastics processing
Chemical and specialty material extrusion
| Item | Description |
|---|---|
| Barrel Type | Split barrel / Closed barrel |
| Material Options | 38CrMoAlA, laser cladding alloy, bimetallic liner |
| Surface Treatment | Nitriding / Laser cladding |
| Compatible Models | ZSK, ZE, ZSE, TSK, TEX and equivalent |
| Customization | Available (drawing-based or reverse engineering) |
Should I repair or replace my worn barrel?
If remaining wall thickness is limited, repair methods such as laser cladding may involve high risk. In many cases, manufacturing a new barrel offers better structural safety and cost control.
What is the difference between nitrided and laser cladding barrels?
Nitrided barrels rely on surface hardness, while laser cladding barrels provide a thicker, wear-resistant alloy layer with stronger resistance to abrasive and corrosive wear.
Which industries are laser cladding barrels suitable for?
They are especially suitable for petrochemical, mineral-filled plastics, and high-wear compounding applications.
ZHITIAN is not just a component supplier.
We are a long-term extrusion spare parts manufacturer with extensive experience in twin screw extruder barrels, screw elements, and gearboxes.
From material selection to process control, from laboratory testing to real production feedback, ZHITIAN focuses on turning uncertain operating conditions into stable, predictable performance.
A twin screw extruder barrel is the core pressure-bearing and wear-resisting component of a twin screw extrusion system.
It directly determines material residence stability, dispersion efficiency, and long-term operational reliability.
At ZHITIAN, we design and manufacture twin screw extruder barrels with a strong focus on material behavior, wear mechanisms, and real production conditions, rather than relying on a single generic solution.
In actual extrusion processes, barrel wear is rarely caused by a single factor.
Instead, abrasive wear, adhesive wear, corrosion, and thermal fatigue often occur simultaneously.
This is why conventional nitrided steel barrels may fail prematurely under:
High filler content formulations
Glass fiber or mineral reinforced compounds
Petrochemical and chemical granulation processes
ZHITIAN addresses these challenges by offering material- and process-matched barrel solutions, rather than one-size-fits-all designs.
1. Multiple Material Options
Nitrided steel barrels (38CrMoAlA) for standard applications
Laser cladding barrels with nickel-based tungsten carbide alloys for high wear zones
Bimetallic alloy liners for extreme abrasion and corrosion environments
2. Optimized Manufacturing Process
Strict quenching & tempering before nitriding
Controlled laser cladding with metallurgical bonding
Precision CNC machining to ensure bore alignment and dimensional stability
3. Long-Term Stability
ZHITIAN barrels are designed to minimize deformation, cracking, and premature wear, ensuring consistent extrusion performance over extended service life.
Plastic compounding
Petrochemical granulation
Masterbatch production
Engineering plastics processing
Chemical and specialty material extrusion
| Item | Description |
|---|---|
| Barrel Type | Split barrel / Closed barrel |
| Material Options | 38CrMoAlA, laser cladding alloy, bimetallic liner |
| Surface Treatment | Nitriding / Laser cladding |
| Compatible Models | ZSK, ZE, ZSE, TSK, TEX and equivalent |
| Customization | Available (drawing-based or reverse engineering) |
Should I repair or replace my worn barrel?
If remaining wall thickness is limited, repair methods such as laser cladding may involve high risk. In many cases, manufacturing a new barrel offers better structural safety and cost control.
What is the difference between nitrided and laser cladding barrels?
Nitrided barrels rely on surface hardness, while laser cladding barrels provide a thicker, wear-resistant alloy layer with stronger resistance to abrasive and corrosive wear.
Which industries are laser cladding barrels suitable for?
They are especially suitable for petrochemical, mineral-filled plastics, and high-wear compounding applications.
ZHITIAN is not just a component supplier.
We are a long-term extrusion spare parts manufacturer with extensive experience in twin screw extruder barrels, screw elements, and gearboxes.
From material selection to process control, from laboratory testing to real production feedback, ZHITIAN focuses on turning uncertain operating conditions into stable, predictable performance.
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