9-Zone Extruder Heating with ±1°C Accuracy – PP Strapping Line

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Supply Ability	10SETS
Delivery Time	60DAYS
Packaging Details	WOODEN BOX
Payment Terms	T/T
Heating zones	9 zones
Barrel zones	6 zones
Die head zones	3 zones
Heater type	Cast aluminum
Cooling fans	6 centrifugal
Temp. range	0-399°C
Temp. accuracy	±1°C
Control method	PID closed-loop
Energy saving	Zone heating
Monitoring	Real-time curves
Brand Name	CHUQI
Model Number	CQ-SPP120-6
Place of Origin	CHINA

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Product Specification


Supply Ability	10SETS	Delivery Time	60DAYS
Packaging Details	WOODEN BOX	Payment Terms	T/T
Heating zones	9 zones	Barrel zones	6 zones
Die head zones	3 zones	Heater type	Cast aluminum
Cooling fans	6 centrifugal	Temp. range	0-399°C
Temp. accuracy	±1°C	Control method	PID closed-loop
Energy saving	Zone heating	Monitoring	Real-time curves
Brand Name	CHUQI	Model Number	CQ-SPP120-6
Place of Origin	CHINA
High Light	9-zone extruder heating PP strapping line ，high accuracy PP strapping production line ，extruder heating with ±1°C accuracy

9-Zone Extruder Heating with ±1°C Accuracy – PP Strapping Line

Precision Temperature Control

Precise and stable temperature control is fundamental to ensuring uniform plasticization and stable extrusion of PP material. This extruder features 9 independent cast aluminum heaters (6 zones on the barrel, 3 zones on the die head) paired with 6 centrifugal cooling fans, forming a fully automatic closed-loop PID temperature control system.

The system monitors each zone in real-time, automatically adjusting heating or cooling to keep deviations within ±1°C, ensuring uniform melt temperature. 9-zone independent control allows setting a temperature gradient along the screw length: lower in the feed zone, gradually increasing in the compression and metering zones, and constant in the die head.

This fine temperature control capability effectively avoids quality issues such as poor plasticization, gels, and uneven thickness caused by temperature fluctuations, laying the foundation for high-precision, high-stability extrusion production.

Technical Specifications

Parameter	Value
Total Heating Zones	9 zones
Barrel Heating Zones	6 zones
Die Head Heating Zones	3 zones
Heater Type	Cast aluminum bands
Number of Cooling Fans	6 units (centrifugal)
Temperature Control Range	0 - 399°C
Control Accuracy	±1°C
Control Mode	PID fully automatic closed-loop

Key Features

Multi-zone independent: 9 zones with independent control for different temperature gradients
High accuracy: ±1°C fluctuation, far exceeding typical ±2-3°C industry standard
Fast response: PID algorithm with bidirectional heating/cooling adjustment
Cast aluminum heaters: Large contact area, uniform heat transfer, long life
Adequate cooling: 6 centrifugal fans prevent overheating
Temperature gradient: Adapts to solids conveying, melting, homogenization stages
Reduced gels: Avoids local overheating that forms gels
Thickness stability: Stable temperature leads to stable output and uniform thickness
Energy efficient: Zone heating avoids unnecessary energy waste
Easy monitoring: Real-time temperature curves on touch screen

Frequently Asked Questions

What are the practical benefits of 9-zone independent temperature control?

It allows setting a temperature gradient along the screw length. Typically, the feed zone is lower, the compression and metering zones gradually increase, and the die head is constant. This gradient facilitates solids conveying, melting, and homogenization, avoiding local overheating or under-plasticization, improving product quality.

What is the difference between cast aluminum heaters and ordinary mica heaters?

Cast aluminum heaters have larger contact area and tighter fit with the screw/barrel, providing higher heat transfer efficiency and more uniform temperature distribution. They are also mechanically stronger, corrosion-resistant, and longer-lasting, making them standard for large extruders.

How do the cooling fans work? Do they waste heat?

The fans only operate when the temperature exceeds the setpoint, blowing air to cool the barrel surface. They operate intermittently, and the heat has already been used for plasticization, so there is no waste. Instead, they prevent overheating and protect the equipment.

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory

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Business Type:

Manufacturer 


Year Established:

2012 


Total Annual:

5000000-8000000


Employee Number:

50~60 


Ecer Certification：

Verified Supplier 

Jiaxing Chuanqi Machinery Equipment Co., Ltd. is a high-tech enterprise that specializied in the research and develop and manufacture of Paper strap production line, PP box strap production line and all kinds of automatic winder and PP PET strapping. Vision: Committed to becoming t... Jiaxing Chuanqi Machinery Equipment Co., Ltd. is a high-tech enterprise that specializied in the research and develop and manufacture of Paper strap production line, PP box strap production line and all kinds of automatic winder and PP PET strapping. Vision: Committed to becoming t...

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Jiaxing Chuanqi Machinery Equipment Co., Ltd.
Yucheng town, Haiyan County, Jiaxing City, Zhejiang Province, China
https://www.strappingwinder.com/

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