Greenhouse film die

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Greenhouse film die is a key component of greenhouse film production. It has a precision runner to ensure uniform extrusion of the plastic melt and uniform film thickness; accurate temperature control, maintaining the right temperature, and preventing plasticization problems. The material is corrosion-resistant, suitable for multi-layer co-extrusion, the discharge port can be fine-tuned, and the structure is compact, helping to produce high-quality and multi-functional greenhouse films.

Category: Greenhouse film die
Key words: greenhouse film die

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Product list

Product details:

Item	Details
Design Principle	It adopts an elongated V-drop-shaped flow channel, triangular splitting technology and a special flow-stabilizing structure, which can reduce the “M” and “W” shaped material flows and improve the composite precision.
Lip Adjustment	The upper die lip is an integrated type of push-out manual fine-tuning and automatic fine-tuning. The manual adjustment range is ±1 mm, and the automatic adjustment range is ±300 μm. It is equipped with a full closed-loop control system and an automatic thickness measurement system, so that the thickness accuracy can be controlled within ±2%.
Width Adjustment Device	It can be equipped with an “inner-blocking type width adjustment device” or an “outer-blocking type width adjustment device” with a thick edge removal function to meet the production requirements of products with various widths.
Applicable Raw Materials	LLDPE, LDPE, EVA, mPE, HDPE, etc.
Applicable Film Specifications	Single-layer or multi-layer films such as CPP, PE, EVA, PVC, PET, PVB, PA with a width of less than 5000 mm and a thickness of 0.06 – 0.18 mm.
Matching Extruder	An extruder with a wavy screw mixing head, a powerful conveying bushing, and equipped with a DC motor (or frequency conversion speed regulation), which ensures the stable conveying and plasticizing of raw materials.
Matching Cooling System	It is matched with a cooling system with low wind pressure and large air volume fans, enabling the extruded film to be cooled quickly and evenly.
Matching Traction and Winding System	It is connected to a stable traction system and a double-station center winder, realizing the smooth traction and neat winding of the film.
Product Advantages	High precision, with uniform thickness, ensuring the stability of light transmittance and heat preservation; high composite precision, tight bonding between layers and strong durability; good adaptability to different widths.

Product Features:

High-precision runner design:

The internal runner is precisely calculated and polished to ensure that the plastic melt is extruded evenly and stably. Whether it is PE, PVC and other commonly used greenhouse film raw materials, it can be evenly distributed in the runner to avoid film thickness differences caused by uneven discharge, so that the thickness of the greenhouse film is uniform everywhere, ensuring light transmission and temperature insulation.

Good temperature control performance:

Equipped with high-efficiency heating and cooling devices, since the production of greenhouse film is sensitive to temperature, at different stages of raw material plasticization and extrusion, precise temperature control is carried out to prevent the material from scorching or poor plasticization due to temperature fluctuations, maintain stable melt fluidity, and ensure stable film quality.

Strong corrosion resistance:

Long-term contact with plastic raw materials containing various additives, greenhouse film dies are mostly made of stainless steel, alloy steel and other materials, which have excellent corrosion resistance, are not easy to rust and be eroded, and can maintain the accuracy and performance of the die for a long time, prolonging the service life.

Multi-layer co-extrusion adaptability:

In order to meet the multi-functional requirements of greenhouse films, multi-layer co-extrusion technology is often used today. High-quality greenhouse film dies can be flexibly adapted to precisely regulate the extrusion thickness and speed of each layer of materials, so that plastic layers with different functions are tightly compounded, giving greenhouse films such as anti-aging, anti-drip and other characteristics.

Fine adjustment of the discharge port:

There is a fine-tuning device at the discharge port, which is convenient for the operator to make subtle adjustments to the width and thickness of the film according to the actual production, and quickly calibrate to ensure that the produced greenhouse film meets the requirements of different specifications of greenhouse construction.

Compact and stable structure:

The overall structure design is scientific and reasonable, and the components are closely connected and easy to disassemble and repair. During high-speed and long-term extrusion operation, it remains stable and does not shake, reducing the surface defects of the film caused by mechanical vibration and ensuring the smooth and flat appearance of the product.

Application:

In vegetable cultivation, the greenhouse film it helps produce sets up “greenhouses” for cucumbers, beans, etc., stabilizes temperature and humidity, prevents frost and snow, and promotes early ripening, so that fresh vegetables can be listed in all seasons. In terms of fruit cultivation, greenhouses for grapes and strawberries rely on the film it produces to control light and heat preservation, and the fruits are fuller and sweeter. In the breeding scene, the membrane produced by greenhouses for raising chickens and ducks keeps warm in winter and ventilates in summer to reduce diseases. Poultry grow fast and lay more eggs. Flower cultivation is also inseparable. The environment is precisely controlled, and flowers bloom in season. The landscape sheds for agricultural scientific research greenhouses and sightseeing gardens use the high-quality greenhouse film they produce to create an ideal environment, carry out experiments, and attract tourists.

FAQ

A What are the special requirements for the production environment of your PVC pipe production line? For example, temperature, humidity, etc. Will my factory's environment be suitable?

Our PVC pipe production line can adapt to a wide range of environmental conditions. The recommended working temperature is 0 – 40°C, and it can operate normally with a relative humidity not exceeding 85%. If your factory has special environmental conditions, we can provide targeted protection solutions, such as installing temperature control equipment and moisture-proof treatment, to ensure the stable operation of the equipment.

B Are the components used in the equipment easy to purchase? If components need to be replaced later, how long does it take from placing an order to receiving the goods?

The core components of our equipment are designed in a standardized manner, and common accessories are well-stocked. For domestic customers, the goods can be delivered within 3 – 5 working days after the order is placed. For specially customized components, we will closely cooperate with suppliers to ensure delivery within 15 – 20 working days, minimizing the impact on your production.

C After purchasing your plastic machinery, can you provide guidance on relevant industry production processes?

Certainly! We not only provide equipment but also share our accumulated production process experience according to your product requirements. Our technical experts will formulate detailed production process plans combined with the characteristics of the equipment and provide on-site guidance and optimization during the equipment debugging stage to help you produce high-quality products.

D What is the degree of automation of your drip irrigation pipe production line? How much labor cost can be reduced?

Our drip irrigation pipe production line is equipped with a fully automatic control system, enabling a full – process automation from raw material feeding to finished product winding. Compared with traditional production lines, it can reduce labor input by 60%. For example, a production line with a daily output of 2 tons only requires 2 – 3 operators to complete the production, significantly reducing labor costs.

E If I purchase multiple different types of plastic machinery, are there any preferential policies?

Of course! For customers who make bulk purchases or purchase multiple product categories, we will provide tiered discount offers based on the specific purchase amount and equipment type. At the same time, we will also give away a certain number of vulnerable parts and extend the equipment warranty period, making your purchase more cost-effective.

F Is the noise level high when the equipment is running? Does it meet environmental protection standards?

We have fully considered noise control in the equipment design. Through optimizing the mechanical structure and installing sound insulation devices, the running noise is lower than the national industrial noise standard (≤85 decibels during the day and ≤75 decibels at night). The equipment’s energy consumption, exhaust emissions, and other indicators meet environmental protection requirements and have passed relevant inspection and certification, so you can use it with confidence.

G How long is the equipment warranty period? How are the maintenance costs calculated during the warranty period?

The overall warranty period for our plastic machinery is 1 year, and the warranty period for core components is 2 years. During the warranty period, all costs for repairs and component replacements due to equipment quality problems will be borne by us, and you do not need to pay any additional fees. After the warranty period expires, we will still provide preferential maintenance services and component prices.

H Can you provide financing plans for the equipment? If there is a temporary shortage of funds, what payment methods are available?

We cooperate with multiple financial institutions and can provide flexible financing plans for customers, such as installment payments and equipment leasing. You can choose the down payment ratio and repayment period according to your own financial situation to ease financial pressure and smoothly introduce the equipment for production.