Blow Film Machinery
SUN LUNG Gearboxes for Blow Film Machinery Applications
With the growing demand for co-extruded blow film machinery, SUN LUNG provides a wide range of gearbox types to meet the diverse needs of modern manufacturers. From A-B-A and A-B-C co-extruded blow film machinery to single-layer blow film machines, our gearboxes are designed to ensure efficient and reliable operation across various applications.
For example, the A-B-A blown film machine, widely used for T-shirt bag production, typically combines two extruders of different sizes, such as 45mm and 55mm gearbox screw configurations. In this setup, the A-A outer layers often include 20% CaCO₃ mixed with color masterbatch, LLDPE, and HDPE, while the B layer incorporates a higher percentage of CaCO₃ with HDPE raw material for cost efficiency and enhanced durability.
SUN LUNG supports these applications with its gearboxes, which come with various size specifications for single screw series, ensuring precision and reliability for even the most demanding requirements. As a trusted gearbox manufacturer, we provide high-performance solutions that cater to the unique specifications of blow film machinery.
Why Choose SUN LUNG Gearboxes for Blow Film Machinery?
- Tailored Solutions with Custom Made Gearbox Options – SUN LUNG specializes in custom-made gearbox designs to meet the specific needs of blow film machinery, ensuring compatibility with various extruder configurations and production requirements.
- High-Quality Standards from a Leading Gearbox Manufacturer – Recognized among top gearbox brands, our products are crafted with premium materials and precision engineering to ensure long-term reliability and exceptional performance. SUN LUNG is also trusted globally for its ability to handle the demands of co-extruded and various-type blow film machines, providing seamless operation and consistent output.
- Expertise in Compatibility of Gearbox-Screw – Our gearboxes feature compatibility of gearbox-screw configurations, supporting diverse material requirements, including PVC, HDPE, LLDPE, and color masterbatch, for enhanced film production quality.
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SINGLE SCREW EXTRUDERS
Gearbox for Single Screw Extruders
SUN LUNG Gear designed the single screw extruder gearbox base on the AGMA standard, we designed the best transmission efficiency, high torque and sufficient safety factor single screw extruder gearbox structure by using the computer virtual simulation and stress analysis calculation.
The output orientation can be selected by the customer's request. The gearbox is embedded with the excellent forced lubrication and cooling filter system .Top-quality SKF or FAG bearings to be adopted and input/output shafts incorporate with Japanese NOK oil seals ensures the reliable durability. The high precision grade of the internal gears and assembly tolerance technology is the key point of the quality satisfaction. -
SINGLE SCREW EXTRUDERS
Gearbox for Single Screw Extruders - Screw Rear Extraction Type
SUN LUNG Gear Works Co., Ltd designed the gear box base on the AGMA standard, we designed the best transmission efficiency, high torque and sufficient safety factor gear box structure by using the computer virtual simulation and stress analysis calculation. The output orientation can be selected by the customer’s request. The gearbox is embedded with the excellent forced lubrication and cooling filter system .Top-quality SKF or FAG bearings to be adopted and input/output shafts incorporate with Japanese NOK oil seals ensures the reliable durability. The high precision grade of the internal gears and assembly tolerance technology is the key point of the quality satisfaction.
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TWIN SCREW EXTRUDERS
Gearbox for Co-rotating Parallel Twin Screw Extruders
【SLTW , SLTWH, TWT Series】 Corresponding to the increasing global demand of the twin-screw extruder, Sun Lung had developed the series of high-performance gearboxes for the co-rotating twin-screw extruders. These twin screw gearboxes undergo rigorous calculations, comprehensive planning, and precision bearing application, resulting in optimal performance data.
The gearboxes are embedded with excellence heat dissipation and oil lubrication system to perform stable output capacity under heavy-loading force. The construction of this gearbox is composed of the primary reducing section and the distribution section, which are combined by a trusting bearing housing and a pressure flange that absorb the axial loading from the extruder.
The gearboxes of this series have the compact construction、low noise、heavy loading capacity and high production output. They're applicable to industries such as rubber and plastic machinery, food machinery, and feed machinery, etc.
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TWIN SCREW EXTRUDERS
Gearbox for Counter-rotating Conical Twin Screw Extruders
This twin screw extruder gearbox applies the advantages of steady transmission and high loading capability of conical gears to optimize the features of plastic products. The conical gear precision hobbing and grinding are the core technologies. The conical twin screw gearbox are precisely grinded with special machining facilities, customized programs and strict assembly tolerance controlling technologies.
This twin screw extruder gearbox is designed according to the latest principles of AGMA. The structure is composed of deceleration and allocation sections. With innovative breakthrough of conical gear grinding programs, the gearbox performs high transmission efficiency, high torque, high steadiness, low noise and low energy consumption on plastic extruders.
These gearboxes find widespread applications in various industries, including extruders for pipes, sheets, profiles, decorative material, and flooring material, etc.
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TWIN SCREW EXTRUDERS
Gearbox for Counter-rotating Parallel Twin Screw Extruders
【SLYW, YWL Series】 The innovated gearbox for Counter-rotating Parallel Twin Srews Extruders is with strong casing and high safety coefficient structure design ,which can be operating under high torque demand. High precision gears and strong thrust bearings are equipped inside of the gearboxes to enhance transmission efficiency and absorb the axial pressure caused by the extruders. Embedded cooling and lubrication systems ensure the gearboxes to have low noise and low vibration performance.
Sun Lung is committed to evolving into a leading twin screw extruder gearbox manufacturers. Responding to the requests of low speed and high torque, by steadily reducing the motor speed and increasing the output torque, the extruder gearbox precisely and effectively provides the most optimized output to the extruders.
These gearboxes find widespread applications in various industries, including extruders for pipes, sheets, profiles, decorative material, and flooring material, etc.
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All-ElECTRIC INJECTION MOLDING
Gearbox for All-electric Injection Molding Machines
The gearboxes for All-Electric Injection Molding machines have been developed properly for the drive of plasticizing screws. Collocated with ECO-servo motor, it can significantly save the energy and improve the efficiently of production. The gearboxes with parallel axes due to their special configuration, are suitable to transmit elevated torque rates and to suffer high input force, performing with very low operation noise and vibration. In order to facilitate mounting of this series gearboxes, the standard version is supplied complete with flange and output shaft dimension correspond to servo motors commonly used. The gearboxes can be also customized according to the customer's specific request.