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Internal Hot Air Circulation Heat Shrink Tunnel Machine with PLC Control
The S4525N is an industrial-grade, continuous heat shrink tunnel featuring advanced jet-air internal circulation technology. Engineered for high-volume production, it cuts electricity usage by over 15%, maintains precise constant temperatures, and delivers smooth, wrinkle-free packaging across PVC, POF, and PP films.
Key Performance Highlights
15%+ Energy Efficiency: Internal circulation and double-layer heat insulation dramatically reduce power consumption.
High-velocity air jet distribution ensures 360° uniform heating for smooth, wrinkle-free shrink results without film distortion.
Broad Film Compatibility: Engineered for PVC, POF, PP, and other heat-shrinkable packaging materials.
Precision Control: Fully adjustable constant temperature system paired with a stepless conveyor speed regulator.
Industrial Durability: Heavy-duty heating components extend overall equipment service life beyond standard market alternatives.
Detailed Equipment Advantages
15%+ Energy Savings & Thermal Retention
Equipped with an advanced internal hot-air circulation system, the S4525N recycles thermal energy within the chamber rather than venting it. Combined with a multi-layer insulation structure, it minimizes heat loss, drastically cuts electricity usage by more than 15%, and maintains a cool exterior frame for operator safety.
Air Jet Technology for Wrinkle-Free Shrinking
Unlike static heating tunnels, our jet-air system continuously circulates forced hot air evenly around the target package. This balanced thermal exposure eliminates surface bubbles, hot spots, and seal breakage, delivering a clean, tight, and aesthetically superior wrap every time.
Broad Compatibility & Rapid Preheat
The S4525N reaches operational temperature rapidly, keeping production lines moving without lag. It is optimized for high-performance shrink wrapping on PVC film, while offering equal precision for POF and PP films across various product dimensions.
Compact Design & Low-Maintenance Build
Designed with a minimal floor footprint, the machine easily integrates into existing automated lines or works as a standalone station. Modular components and accessible internal compartments allow for fast routine cleaning and maintenance, reducing long-term downtime.
Technical Specifications (S4525N)
Parameter / Feature
Technical Specification
Model
S4525N
Tunnel / Chamber Size
450 mm (W) × 250 mm (H)
Compatible Shrink Films
PVC, POF, PP, PE
Heating System
Internal Air Jet Hot-Air Circulation
Energy Efficiency
> 15% Power Savings vs. Conventional Models
Temperature Control
Precision Constant Temperature System (0–300°C)
Conveyor Speed
Stepless Electronic Speed Regulation
Structure
Compact, Double-Insulated Steel Chassis
Operation Mode
Standalone or Line-Integrated Continuous Production
Applications & Target Industries
Tape & Industrial Rolls: Provides tight, uniform wrapping for adhesive tapes, tape rolls, and cylindrical goods.
Multi-Packs: Bundles grouped items cleanly for tamper-evident display and transport protection.
Main Technical Parameters:
Model
S4525N
Overall Machine Size (length * width * height)
1900*700*1370mm
Heating Tunnel Size
450*250*1500mm
voltage
380V 50-60HZ
power
12KW
Conveying speed
0-15m/min
Conveying material
Chain stick
Load Capacity
5KG
Packing film
PVC,PP,POF
Configuration Parameters:
Model
S4525N
Conveyor motor
Mili
Wind-driven motor
SULIN
temperature control
Shanghai Mingzhu
relay
chint
temperature controller
Shanghai Mingzhu
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2009
Total Annual:
4000000-USD 6000000
Employee Number:
100~500
Ecer Certification：
Verified Supplier
Zhirong Group (Hong Kong) Co.,Ltd
Empowering Global Manufacturing Through Intelligent Automation
Zhirong Group (Hong Kong) Co.,Ltd is a diversified technology-driven enterprise with strong capabilities across multiple industrial sectors. The group operates through several subsidiaries, in...
Zhirong Group (Hong Kong) Co.,Ltd
Empowering Global Manufacturing Through Intelligent Automation
Zhirong Group (Hong Kong) Co.,Ltd is a diversified technology-driven enterprise with strong capabilities across multiple industrial sectors. The group operates through several subsidiaries, in...
