Plastic Straw Making Machine
Are you looking for a machine to manufacture plastic straws or tubes? KEZHI offers you quality assurance, reliability and excellent value.
KEZHI Machinery can provide you with an excellent production line to make your project a success.
The Products KEZHI Offers You
KEZHI is a leading manufacturer specializing in the development and production of different straw making machine, straw packing machine, straw bending machine. Our commitment to quality has positioned us as a provider of top-tier straw production solutions on a global scale
Plastic straw making machine
- Main screw diameter 65mm/50mm
- Delta Inverter,WN motor,
- Maximum output 45kg/hour
- Suitable for PP straw making
- Auto material loader
General Applications For The Production Line
The line can be used to make not only beverage straws, but also coffee stirrers, lollipop sticks, nozzle tubes, pen refills and other small profiles by changing the molds, providing more options for your production.
Introduction Of The Machine
The PP (Polypropylene) straw making machine is a state-of-the-art, high-efficiency production line designed for manufacturing high-quality drinking straws from polypropylene material. This machine integrates advanced technology and superior engineering to deliver consistent, reliable performance, making it an ideal choice for businesses looking to produce straws in large quantities.
Main Components
1. **Extruder**:
– **Function**: Melts and extrudes the polypropylene material into straw tubes.
– **Features**: Equipped with a high-performance screw and barrel, temperature control system, and a powerful motor for smooth and efficient extrusion.
2. **Mould Head**:
– **Function**: Shapes the extruded polypropylene into uniform straw tubes.
– **Features**: Precision-engineered mould heads that can be easily changed to produce straws of different diameters and thicknesses.
3. **Cooling System**:
– **Function**: Rapidly cools the extruded straws to retain their shape and strength.
– **Features**: Typically includes a water cooling tank with adjustable temperature controls to ensure optimal cooling.
4. **Haul-off Unit**:
– **Function**: Pulls the cooled straws from the extrusion line at a consistent speed.
– **Features**: Adjustable speed settings and precision rollers to handle straws gently and maintain their quality.
5. **Cutting Unit**:
– **Function**: Cuts the continuous straw tube into individual straws of desired lengths.
– **Features**: High-speed cutting mechanism with length control and smooth, burr-free cutting edges.
6. **Collector and Stacker**:
– **Function**: Collects and stacks the finished straws for easy packaging.
– **Features**: Automated systems to arrange and stack straws efficiently, minimizing manual handling.
The PP straw making machine is the perfect solution for businesses looking to enhance their production capabilities and meet the growing demand for polypropylene straws. With its superior performance, flexibility, and ease of operation, this machine stands out as a top choice in the straw manufacturing industry.
Features of extruder
The most important part of the production line, where the tubing is extruded
Temperature control
Infrared heating, which is fast and gentle heating, dedicated to the production of high-end pipes, and does not cause secondary damage to the extruded material.
Main Screw
Special designed 65mm/50mm screw to meet the characteristic of bioplastic material.
L/D: 33:1
meets the production of PP materials.
Mould Head
Precision-engineered mould heads that can be easily changed to produce straws of different diameters and thicknesses.
Two moulds will be offered with machine
Driving Motor
Using 11KW/ 30Kw three-phase asynchronous motor, output torque is bigger, production is more stable, the product is mature and easy to maintain.
Servo motor optional
Gear Reducer
Special hardened gear reducer for plastic extruder, Guomao brand, reliable quality,
Ratio 12.5
Inverter
Delta inverter, famous brand, stable and reliable performance, the most recognized inverter in the straw industry
Cooling water sink features
In the second part of the line, the extruded pipe will be cooled and better shaped here.
- Material
Stainless Steel, No rust, longer lifetime
- Water tank
Equipped with a water tank, allows you to connect with the water chiller directly
- Adjustability
The direction of the cooling water sink can be adjusted,
- Length
Two options, 3.5 meters, and 4.5 meters
- Temperature required
The water temperature inside the water sink shall be 25-30 degrees (for PP material)
Traction & Cutting Machine features
In the third part of the line, the extruded pipe will be pulled and cut into small pieces here.
Required Auxiliary equipment
These two machines are necessary for the production line running.
Industrial Chiller
A 5HP industrial chiller is required for the production line, you can choose an air-cooled chiller or water-cooled chiller on your needs. Flow requirement: over 3 cubic meters per hour
Air Compressor
A 7.5KW(10hp) air compressor is required for a single production line, you can choose pistol air compressor or screw air compressor on your needs.
How It Works
from this video you will find out how it works,
Machine Specifications
Find some specifications of the plastic straw production line
| Model | KZ-011-50 | |
|---|---|---|
| Power Supply | Main Screw | 380V,3Phase,50HZ, 7.5KW(VFD) |
| Sub-Screw | / | |
| Heating | 9KW | |
| Hauling motor | 0.75KW(VFD) | |
| Cutting Motor | 0.75KW(VFD) | |
| Total Power | 18KW | |
| Extruder | Main Screw diameter | 50mm |
| Screw L/D | 28:1 | |
| Gearbox | ZLY133 | |
| Temperature controller | 5 SETS | |
| Motor | WANMAN | |
| Gear reducer | GUOMAO | |
| Inverter | DELTA | |
| Electric control cabinet | 1 set | |
| Cooling water sink | Length | 4.5meters |
| Material | 304 Steel stainless | |
| Water storage tank | 1 set | |
| Blow dry device | 1 set | |
| Traction & Cutting Unit | Traction unit | 1set |
| Cutting unit | 1set | |
| motor | 0.75KW(VFD) *2 | |
| Cut end | 90°/60°/45° | |
| PLC control | Optional | |
| L shaped straw collecting machine | Optional | |
| Air compressor | 7.5KW(10HP) | |
| Industrial chiller | 5HP, water cooled / air cooled |
The Basic Knowledge About Plastic Extrusion Machine
A brief introduction to plastic extruders to help you get a basic understanding of the machine
Table of Contents
What is plastic extrusion machine?
Plastic extrusion is a high-volume manufacturing technique in which raw plastic, typically in pellet form, is melted and extruded into a continuous profile. The process initiates as the resin is loaded into the extruder’s hopper and moves down into the barrel, where it is progressively heated until it melts. Following this, a screw mechanism drives the molten plastic through a die, which molds it into the required shape. As it cools and solidifies, it assumes the final form of various products, ranging from pipes and plastic sheeting for weather-stripping to wire insulation. This method is highly valued across various industries for its efficiency, versatility, and consistent ability to produce large volumes.
Working principle of plastic extruder
The Role of Extruders in Plastic Extrusion
Extruders serve as the core component in the plastic extrusion process, consisting primarily of a heated barrel outfitted with a rotating screw. The process begins with the introduction of raw plastic materials, typically in pellet form, into the extruder via a hopper. As the screw rotates, it drives the pellets forward into the barrel, where they encounter significant heat and pressure, causing them to melt into a viscous fluid. This fluid plastic is then extruded through a die—a tool engineered to mold the plastic into the specified profile as it emerges from the machine. The plastic product is subsequently cooled and solidified, retaining its shape as it is segmented into predetermined lengths. This method is crucial for producing continuous lengths of plastic in diverse shapes, thereby playing a pivotal role in various industrial applications.
Components of a Plastic Extrusion Machine
A standard Plastic Extrusion Machine is composed of several key components, each playing a crucial role in the extrusion process:
1. Hopper: The initial entry point for the raw plastic material, generally in pellet form. The hopper channels the material into the extruder’s barrel.
2. Barrel: This component encases the extruder screw and is fitted with heaters to melt the plastic. It is constructed to endure high pressures and temperatures.
3. Extruder Screw: A critical component that transports the plastic pellets from the hopper to the barrel’s far end. Its rotation not only moves the pellets but also generates the heat needed to melt them through friction.
4. Heaters: Positioned along the barrel, these elements assist the screw in melting the plastic and maintain the required temperature for successful extrusion.
5. Die: This custom-designed part shapes the molten plastic. It is tailored specifically to match the product’s desired profile.
6. Cooling System: Post-extrusion, the shaped plastic must be cooled and solidified. This system can include elements like fans, water baths, or cooling rollers.
7. Cutter: This tool segments the newly formed plastic into desired lengths and can range from a simple guillotine to a more intricate rotary cutter, depending on the product specifications.
Plastic Extrusion Machine Operating
The operation of a plastic extruder involves a systematic procedure to ensure efficient production of plastic products. The first step is to load the plastic pellets into the hopper, set the temperature control of the machine, and switch on the heater. The plastic is melted in the barrel and pushed towards the die head by the extruder screw. It is vital to ensure that the temperature and speed of the extruder screw are set correctly to achieve the desired quality of the end product. Once the molten plastic has passed through the die, it takes the desired shape. It is then cooled and solidified in a cooling system before being cut into specified lengths by a cutting machine. It is important to note that the smooth operation of a plastic extruder requires constant monitoring and timely adjustments to maintain optimum output and quality.
Downstream equipment in plastic extrusion
Downstream equipment in plastic extrusion pertains to the array of machinery deployed post-extrusion to apply final modifications to the product. This equipment performs various crucial functions such as cooling, cutting, pulling, and winding to enhance the final attributes of the extruded plastic. Key types of downstream equipment include:
Cooling Tanks: These units are essential for cooling the extruded plastic to solidify and stabilize its shape. The cooling medium—either chilled water or air—is selected based on the plastic type and the specifications of the final product.
Pullers: These mechanisms ensure the extruded plastic maintains consistent speed and tension, critical for achieving uniform shape and size throughout the product. Available in various forms, such as belt pullers and roller pullers, they cater to different extrusion needs.
Cutters: After the cooling phase, cutters are employed to trim the extruded product to required lengths, ensuring precision in final measurements.
Coilers or Winders: For products such as tubes or profiles, coilers or winders collect the output on spools or reels, facilitating easier handling and transport.
Screen Printers: For products that need printed details or branding, screen printers are utilized to apply designs directly onto the surface of the extruded plastic.
The selection of downstream equipment is tailored to the specific type of product, material properties, and production demands. This equipment is integral to the extrusion process, playing a pivotal role in ensuring that the final product adheres to the set quality standards and meets precise specifications.
Considerations when choosing a machine
Productivity: High-capacity machines produce more product in less time, resulting in lower unit costs and a higher return on investment.
Energy Consumption: Machines with low energy consumption can significantly reduce operating costs and increase ROI.
Maintenance costs: Frequent maintenance can lead to increased costs and production downtime. Therefore, machines that require less maintenance can improve ROI.
Versatility: Machines that can process a wide range of plastic materials can meet a variety of production needs, increasing profitability.
Lifespan: The longer a machine’s lifespan, the higher the return on investment, as the initial investment can be spread over more production units.
Resale value: If the machine maintains a high resale value, the return on investment will increase.
Type of straw extrusion machine
In terms of material: there are pp straw extrusion machine, PLA straw extrusion machine, PHA straw extrusion machine,
In terms of main screw diameter: 50 mm and 65 mm main screws are available for the production of different diameter ranges of straw.
In terms of straw colour: single colour, two colour, two colour co-extrusion, three colour and three colour co-extrusion straw extrusion machine
Extruded pipe diameter adjustment
To precisely adjust the diameter of a pipe produced by an extrusion machine, various factors and settings must be meticulously managed and optimized:
1. Die and Calibrator Settings:
– Confirm that the calibrator is correctly aligned and sized, usually 3-5% larger than the target pipe diameter.
– Modify the die gap to suit the required pipe diameter. Increasing the gap enlarges the diameter, whereas reducing the gap decreases it.
2. Pressure Fluctuations:
Unstable compressed air can lead to uneven wall thickness in the pipe. This suggests that fluctuations in internal air pressure can cause variations in the pipe’s diameter or wall thickness
3. Extruder Throughput and Temperature:
– Alter the extruder throughput—decreasing it will reduce the pipe diameter, while increasing it will enlarge the diameter.
– Optimize the temperature settings of the extruder to ensure a consistent melt flow and prevent complications such as pipe sagging that can alter the diameter.
4. Traction Speed:
– Modify the haul-off unit’s speed. Accelerating the traction speed decreases the pipe diameter, while slowing it increases the diameter.
5. Cooling System:
– Adjust the cooling system, specifically the water flow and temperature in the cooling tanks, to guarantee even cooling. Non-uniform cooling can cause fluctuations in the pipe diameter.
6. Tooling and Sizing Equipment:
– Choose appropriate tooling for the specified pipe dimensions and ensure it is well-maintained and accurately calibrated.
By meticulously managing these parameters, the diameter of the pipe from the extrusion machine can be effectively controlled and precisely adjusted to meet specific requirements.
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Why Choose KEZHI
Welcome to KEZHI, your trusted partner in advanced straw production and packaging machinery. With a focus on innovation, quality, and customer satisfaction, we deliver customized solutions that enhance efficiency and productivity. Our certified, high-performance equipment is designed to meet international standards, ensuring reliability and cost-effectiveness. Join the growing number of manufacturers worldwide who trust KEZHI to transform their production processes and drive their success.
Mission
Achieve customer satisfaction by continually improving processes, products, and services to ensure consistently meet or exceed requirements.
Vision
To be recognized as a leading machine manufacturer through the superior quality of our products, services, and personnel.
Company Snapshots
Main screw 50 mm, output 30 kg/hour, 45 kg/hour with 65 mm main screw.
To find the number of straws, divide by the weight of a single straw.
Industrial chiller: suggest 5HP chiller
Air compressor: 7.5KW is enough for one extrusion line, suggest 15KW for potential machine increasing in future
380V 50HZ 3Phase
other options are available, just contact and give us your requirements
We supply spare parts, just take a photo of the required part and send it to us and we will give you a quote and courier costs.
We can usually deliver the machine within 35 days of receiving the deposit,
Yes, we can provide such trainings, videos can be provided, your team can also come to our factory to get training
This machine can work with PP,PLA,PHA,etc.
Wooden case packing is optional, and we suggest wooden case packing for less container loading,
Depends on your order, there are several options for you.
Less container loading, full container loading(20GP/40GP)
International express for small items
Warranty: 14 months from the date of boarding, and it covers major components like inverter, motor, etc, wearing parts is not covered.
After sales: we give necessary support during your production, technical and parts supply.
Regular maintenance is recommended, keep the machine clean, follow the manual of motor.
Check whether the lubrication status of gears and bearings is good in due time
Get Answers to Your Questions
These frequently asked questions will also help you out, check it out now