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China Plastic Bellows

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Pulte Electric Technology (Wenzhou) Co., Ltd. Home / Product / Agent's Choice / Bellows / Plastic Bellows

Plastic Bellows Manufacturer

  • Plastic Bellows

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    Models Specification(mm) Inside diameter(mm) Outside diameter(mm) Bending radius(mm) Quantity PCS...
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    Plastic Bellows
Plastic Bellows

Plastic Bellows

● Product materials: PA hose (nylon flame retardant), PE hose, PP hose (flame retardant).
● Product features: high flexibility, friction resistance, acid corrosion resistance, flame retardant.
● Operating temperature: -20°C to 100°C.
● Application: instrument, control cabinet, equipment manufacturing, engineering, installation, automotive wiring harness.
● Product color: Black

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  • Plastic Bellows
Models Specification
(mm)		 Inside diameter
(mm)		 Outside diameter
(mm)		 Bending radius
(mm)		 Quantity PCS
PET-PE-10 AD10 6.5 10 16 100
PET-PE-12 AD12 10 13 16 100
PET-PE-15.8 AD15.8 12 15.8 30 100
PET-PE-18.5 AD18.5 14.3 18.5 40 100
PET-PE-21.2 AD21.2 17 21.2 45 100
PET-PE-25 AD25 20 25 45 50
PET-PE-28.5 AD28.5 23 28.5 50 50
PET-PE-34.5 AD34.5 29 34.5 60 50
PET-PE-42.5 AD42.5 36 42.5 70 50
PET-PE-54.5 AD54.5 48 54.5 90 25
PET-PP-10 AD10 6.5 10 16 100
PET-PP-12 AD12 10 13 16 100
PET-PP-15.8 AD15.8 12 15.8 30 100
PET-PP-18.5 AD18.5 14.3 18.5 40 100
PET-PP-21.2 AD21.2 17 21.2 45 100
PET-PP-25 AD25 20 25 45 50
PET-PP-28.5 AD28.5 23 28.5 50 50
PET-PP-34.5 AD34.5 29 34.5 60 50
PET-PP-42.5 AD42.5 36 42.5 70 50
PET-PP-54.5 AD54.5 48 54.5 90 25
PET-PA-10 AD10 6.5 10 16 100
PET-PA-12 AD12 10 13 16 100
PET-PA-15.8 AD15.8 12 15.8 30 100
PET-PA-18.5 AD18.5 14.3 18.5 40 100
PET-PA-21.2 AD21.2 17 21.2 45 100
PET-PA-25 AD25 20 25 45 50
PET-PA-28.5 AD28.5 23 28.5 50 50
PET-PA-34.5 AD34.5 29 34.5 60 50
PET-PA-42.5 AD42.5 36 42.5 70 50
PET-PA-54.5 AD54.5 48 54.5 90 25
About Us
Pulte Electric Technology (Wenzhou) Co., Ltd.
Pulte Electric Technology (Wenzhou) Co., Ltd. is a China Custom Plastic Bellows Manufacturer and Sale Plastic Bellows Factory specializing in producing cable connectors, waterproof junction boxes, and other electrical product accessories. The company was born in the electrical town known as the "China Electrical Capital". It is a professional modern enterprise integrating R&D, production, and sales. Focusing on the brand building of Pulte "PULTE", with excellent technical crispness and efficient quality assurance, satisfactory and thoughtful sales service, and reasonable and affordable prices, its various technical indicators and product performance are better than its peers, and are widely used in junction boxes, distribution cabinets, communication equipment, instruments, and meters, medical equipment, machine tools, artificial intelligence, automation equipment, and other fields: constantly innovating, developing new products, forming a series of waterproof cable connectors, waterproof junction boxes, cold blocking parts, cable connector accessories, hose waterproof connectors and other products. At the same time, Wenzhou Pulte International Trade Co., Ltd., a subsidiary of the company, actively expands the international market and is committed to providing high-quality products and services to global customers, effectively broadening the company's market channels, enhancing market competitiveness, and laying the foundation for expanding the scale of the enterprise. The company has strong technical strength and is jointly established by industry veterans. It has a professional position in the field of cable connector manufacturing. We have a complete quality assurance system and rich design and manufacturing experience. Our products are widely used in various industries and are highly reliable. We provide professional and high-quality cable-supporting products for customers. We believe that there is a product that meets your needs in our complete series of products.
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Industry Knowledge Extension

What Are the Three Types of Plastic Bellows?

Plastic bellows are flexible, corrugated tubes widely used to protect mechanical components, electrical wiring, and hydraulic or pneumatic systems. They are designed to allow movement while shielding internal elements from dust, debris, moisture, and mechanical wear. There are three main types of plastic bellows:

1. Accordion Bellows

Accordion bellows have a series of alternating folds that expand and contract like an accordion. This design allows high flexibility and compression and extension capabilities. They are commonly used in robotics, industrial machinery, and automotive applications where precise motion and repeated flexing occur. The accordion structure ensures that the protected components are shielded from dirt, liquids, and mechanical damage while maintaining unrestricted movement. These bellows are often made from materials such as PVC, polyurethane, or polypropylene, offering a balance between flexibility, durability, and resistance to environmental factors.

2. Convoluted Bellows

Convoluted bellows feature uniform ridges along their length, providing enhanced structural stability while allowing bending and twisting. They are used in applications that require moderate flexibility with added mechanical support. The convoluted design distributes stress evenly, reducing wear and prolonging the lifespan of the protected cables or shafts. Polyamide and polyethylene are commonly used for convoluted bellows due to their chemical resistance and durability. These bellows are ideal for cable management, hydraulic lines, and automotive hoses where protection from abrasion and contaminants is critical.

3. Spiral Bellows

Spiral bellows are constructed with a helical pattern, allowing them to expand and rotate freely around a central axis. This type is particularly suitable for applications requiring torsional flexibility, such as robotic arms, rotating machinery, and flexible conduits in constrained spaces. Spiral bellows provide continuous protection while accommodating complex motion paths. Materials like polyurethane and thermoplastic elastomers are commonly used for spiral bellows, offering resilience, chemical resistance, and durability under repetitive stress.

Each type of plastic bellows serves a specific function depending on the motion requirements, environmental conditions, and mechanical protection needed, making them versatile solutions for industrial and automotive applications.

What Is the Main Function of Convoluted Protection Tubing?

Convoluted protection tubing is widely used to shield cables and wires in various applications. Its design combines flexibility with durability, providing reliable protection under challenging conditions. Its main functions can be summarized in three points:

  • Function: Cable Protection

The primary function of convoluted protection tubing is to protect electrical wires and cables from mechanical damage. The corrugated design absorbs impacts, prevents abrasion, and shields wires from sharp edges or moving components. This protection reduces the risk of electrical failures caused by insulation damage and ensures long-term system reliability.

  • Function: Environmental Resistance

Convoluted tubing provides a barrier against moisture, dust, oil, and chemicals. In automotive, industrial, and outdoor applications, wires are exposed to harsh environments that can degrade insulation. Convoluted tubing resists water ingress, oil splashes, and dirt accumulation, maintaining the integrity of electrical connections over time.

  • Function: Flexibility and Organization

The tubing allows wires to bend, twist, and move without kinking or breaking. It helps organize multiple wires into a single pathway, improving installation efficiency and reducing clutter. This flexibility is especially important in tight spaces, such as engine compartments or machinery, where wires must follow complex paths while remaining protected.

By combining protection, environmental resistance, and flexible organization, convoluted protection tubing ensures safe, reliable, and long-lasting operation of electrical systems.

How to Choose the Right Split Tubing for Wire Loom Electrical Applications?

Selecting the appropriate split tubing is crucial for effective wire protection. Consider the following factors:

Material: ABS, PVC, or Polyamide – Choose a material based on environmental conditions. ABS offers impact resistance, PVC provides chemical resistance and cost-effectiveness, and polyamide ensures high durability and temperature resistance.

Diameter: Fit to Cable Bundle – Select a tubing diameter slightly larger than the cable bundle to avoid tight squeezing, which can cause heat buildup or damage insulation. Proper sizing ensures flexibility and allows for easier cable insertion.

Wall Thickness: Durability and Flexibility – Thicker walls provide better protection against abrasion and mechanical stress, while thinner walls improve flexibility. Balance is key depending on the application environment.

Temperature Range: Operating Environment – Consider the and temperatures the tubing will encounter. High-temperature-resistant materials are necessary for automotive or industrial machinery, whereas standard PVC or ABS is sufficient for indoor wiring.

UV and Chemical Resistance: Outdoor Use – For outdoor applications, choose tubing with UV stabilization and resistance to oils, fuels, and other chemicals to prevent premature degradation.