Extrusion lampshade solutions

SW is a 20+ years manufacturer specializing in the production of extruded lampshades. Our experts provide you with the best solution for PVC lampshade, PP lampshade, PC lampshade……

Learn

What is the lampshade

LED lampshade is a supporting component of LED lighting fixtures, mainly used to adjust the distribution of light. It reduces glare by scattering or concentrating light, making the lighting softer and more uniform, with a maximum transmittance of 94%. According to the material of the product, there are mainly PC lampshades, PVC lampshades, PP lampshades, acrylic lampshades, glass lampshades, plastic lampshades, paper lampshades, etc., which need to meet the characteristics of high light transmittance, strong diffusion, flame retardancy and impact resistance to adapt to the characteristics of LED light sources.

discover more

What materials are available for lampshades

There are many lampshades made of different materials, each with their own advantages and disadvantages

PVC lampshade

PVC lampshade is a common lampshade material, which is currently the second most commonly produced plastic and the most widely used plastic. The prominent advantages of PVC lampshades are flame retardancy, wear resistance, chemical corrosion resistance, and low gas and water vapor leakage rates. In addition, PVC lampshades have excellent comprehensive mechanical properties, transparency, electrical insulation, thermal insulation, noise reduction and shock absorption. However, PVC lampshades have poor thermal stability and impact resistance, and are prone to brittleness when using rigid or flexible polyvinyl chloride.

PC lampshade

PC lampshade, also known as polycarbonate lampshade, is a colorless and transparent amorphous thermoplastic material. The characteristic of PC lampshade is that it can withstand high temperatures of about 120 degrees. Ordinary PC is not fireproof, and flame retardant PC can be purchased for fire resistance. The mechanical strength of PC lampshade is very high, colorless and transparent, heat-resistant, impact resistant, flame retardant, and it has UL94V-0 flame retardant performance without the need for additives. PC lampshades have good transparency, high strength, and good weather resistance, and are commonly used as optical products, CDs, polycarbonate sheets, etc.

PP lampshade

The lampshade made of PP can better resist high temperature environments, is not easily deformed or aged, thereby ensuring the safety and longevity of the lamp. Secondly, PP material has better environmental performance. With the increasing awareness of environmental protection among consumers, choosing environmentally friendly materials has become a trend. PP material generates minimal environmental pollution during production and use, and can be recycled, meeting the requirements of sustainable development. Finally, based on market applications and consumer feedback, PP lampshades perform better in practical use. Many high-end lighting brands tend to use PP material as lampshade material to enhance the overall texture and safety of their products

Acrylic lampshade

Acrylic lampshade is a lamp cover made mainly of acrylic (organic glass), which has the characteristics of high transparency and strong weather resistance. It is widely used in the fields of architectural decoration and outdoor lighting. The acrylic lampshade is made of acrylic sheet, with a light transmittance of over 92%. It has UV resistance, flame retardancy, and weather resistance, and can adapt to a temperature range of -40 ℃ to 120 ℃. The material achieves high consistency in specifications and colors through hot pressing technology, with stable physical properties and the ability to withstand temperature changes from -50 ℃ to 70 ℃.

How to produce the PVC lampshade

LED lampshade is a part of LED lighting fixtures, used to protect LED beads from external environmental influences, while also playing a role in beautification and heat dissipation.
1.Production process: The production process of LED lampshades can be divided into various methods such as injection molding, extrusion, stamping, blow molding, etc. Each method has its unique characteristics and scope of application, and choosing the appropriate process has a critical impact on the quality and appearance of LED lampshades. Usually, PVC lampshades are produced by extrusion
2.Material selection: LED lampshades are usually made of plastic materials such as PVC PC, PMMA, PS, etc. These materials have good transparency and weather resistance, which can meet the usage needs of LED lamps in different environments. The quality of materials is directly related to the service life and safety of LED lampshades, so careful selection of materials is necessary.
3.Design innovation: The design of LED lampshades can be innovated according to different lamp shapes and uses. By designing a reasonable structure and shape, the light scattering effect and aesthetics of LED lampshades can be improved, making them better suited to different lighting scenarios and style requirements.
4.Quality control: As an important component of LED lighting fixtures, the quality of LED lampshades directly affects the overall performance and safety of the lighting fixtures.
5. Customized services: LED lampshade manufacturers can provide customized services for different customers’ personalized needs, including color, size, pattern, and other aspects of customization.

In the production process, it is necessary to strictly control the material procurement, production process, and finished product inspection to ensure that the quality of LED lampshades meets the standard requirements.

Explore More

Production process of extruded PVC lampshade

Prepare raw materials

According to the purpose and performance requirements of the extruded profiles, PVC or PE ABS PP PMMA raw materials with different polymerization degrees and models can be selected

PVC extruder preheating

The heating device heats each section of the extruder barrel to the set temperature. Generally, the material is divided into the feeding section, compression section and metering section, and the temperature of each section is different.

Extrusion molding

Add the mixed dry blend into the preheated extruder barrel. As the screw rotates, the material is transported forward in the barrel. Finally, under the action of the die, the designed shape is extruded.

extruded pvc profiles Cooling and shaping

Cooling & shaping

The PVC pipe extruded from the extruder head has a high temperature and needs to be cooled and shaped immediately to maintain its shape. Usually a vacuum sizing water tank is used for cooling and shaping.

Pulling device

After cooling and shaping, the PVC pipe is pulled forward at a constant speed by the pulling device. The pulling speed must match the extrusion speed, otherwise it will lead to uneven wall thickness of the pipe or problems such as breakage and accumulation.

Pipes cutting

When the PVC pipes reaches the set length, it is cut by the cutting device. Cutting can be done by sawing or hot cutting. The cut PVC pipe is the finished product and can be packaged and stored.

How to choose a PVC lampshade factory

Professionalism and experience: Choose manufacturers with rich production experience and professional technology, such as Shuowei New Material, who can provide higher quality products and services. They usually have advanced production processes and equipment, as well as a sound quality management system.
Product types and specifications: Ensure that the manufacturer can provide the required types and specifications of LED lampshades. For example, SW’s main products include LED bulb lampshades, ultra semi-circular lampshades, and large angle illuminated PC lampshades, which can meet the needs of different customers.
Customization capability: If specific specifications or designs of LED lampshades are required, manufacturers with customization capabilities should be selected. They are able to personalize design and production according to customer needs.
Quality inspection: When selecting LED lampshades, strict quality checks should be conducted on the product. Including the transparency, weather resistance, impact resistance, etc. of the lampshade, to ensure that the product meets the requirements for use.
Price and cost-effectiveness: While paying attention to price, we should also consider the cost-effectiveness of the product. Choose LED lampshades that are reasonably priced and of high quality to achieve maximum economic benefits.
After sales service: Understand the manufacturer’s after-sales service policy to ensure timely resolution of any issues encountered during use. Good after-sales service is an important factor that cannot be ignored when choosing a manufacturer.

PVC lampshade tips

Installation precautions
Power off operation: Before replacing or installing the lampshade, the power supply of the lamp must be turned off to avoid the risk of electric shock. ‌
Size matching: Ensure that the lampshade size fits perfectly with the lamp frame to avoid deformation or light leakage caused by size differences. ‌
Fixing method: Fix the lampshade with screws or buckles to ensure its stability and prevent it from falling off. ‌
Precautions for use
Avoid high temperature environment: PVC material has limited temperature resistance, and prolonged exposure to high temperature environments (such as high bulb power or poor heat dissipation) may cause deformation or aging. ‌
Regular cleaning and maintenance: Wipe the surface dust with a soft cloth to avoid scratching the lampshade with hard objects, which may affect its transparency. ‌
Check sealing: If the lampshade is found to be loose or poorly sealed, it should be adjusted or replaced in a timely manner to prevent mosquitoes or rainwater from entering. ‌
Maintenance precautions
Polishing treatment: If there are scratches or yellowing on the surface, 800-2000 grit sandpaper can be used to polish and restore luster (attention should be paid to controlling the strength and temperature). ‌
Replacement suggestion: When the lampshade is affected by aging, deformation, or damage that affects the lighting effect, it should be replaced in a timely manner.

Explore More

Advantages and disadvantages of PVC lampshade

PVC lampshade advantages
Affordable price: PVC material has a lower cost, suitable for large-scale production and consumption, and is suitable for consumers with limited budgets. ‌
Lightweight and easy to install: Lightweight, easy to install and transport, especially suitable for scenarios that require frequent replacement or movement. ‌
Good weather resistance: After special treatment, it can resist environmental factors such as ultraviolet rays and high temperatures, and is not easily discolored or aged. ‌
Strong impact resistance: Compared to other plastic materials, PVC is more resistant to drops and less prone to breakage. ‌
PVC lampshade disadvantage
Insufficient transparency: The light penetration rate is about 80%, resulting in relatively weak lighting effects, which need to be improved by adding coatings or pigments. ‌
Poor environmental friendliness: harmful substances may be released during the production process, and recycling is difficult. ‌
Long term use is prone to aging: Prolonged exposure to direct sunlight or high temperatures can cause oxidation, yellowing, discoloration, or cracking.

Products

Let's see PVC lampshade SW recommend

Get in touch

As a 20+ years custom PVC lampshade factory, we have a team of skilled engineers ready to support you in your product development journey from prototyping to production.Any ideas about your extrusion PVC lampshade you can contact us freely,and our engineers will get back to you with a quote as soon as possible.