PVC profiles are mainly made of polyvinyl chloride (PVC) resin, with additives such as stabilizers, lubricants, and colorants added, and are extruded at high temperatures.
WPC profiles (wood-plastic composite material profiles) are composed of wood fibers (wood powder, bamboo powder, etc.) mixed with thermoplastics (such as PE, PP, PVC), and extruded after adding coupling agents.
| Type | PVC profile | WPC profile |
|---|---|---|
| Ingredients | Pure plastic (mainly PVC resin) | Wood fiber + plastic composite material |
| Environmental protection | General (containing chlorine, difficult to degrade) | Excellent (recyclable, reducing resource consumption) |
| Texture | Strong plastic feel, bright colors | Imitation of wood texture, natural and friendly |
| Strength/weight | Lightweight but less impact resistant | Heavy but more resistant to compression and bending |
| Weather resistance | Afraid of high temperature exposure, suitable for indoor humid environment | Resistant to ultraviolet rays, suitable for long-term outdoor use |
| Cost | Low (suitable for low-cost projects) | High (high-end or environmentally friendly scenarios) |
| Application | Building doors and windows, skirtings, ceiling decorations | Outdoor building materials (floors, fences, pavilions), wall panels, furniture (such as cabinet panels), garden landscape (bench, plank road) |
| Type | PVC profile production line | WPC profile production line |
|---|---|---|
| Raw material pretreatment | 1. PVC powder can be used directly by mixing additives (stabilizer, lubricant, etc.) 2. No need to dry, but impurities must be strictly avoided |
1. Wood fiber (wood powder/bamboo powder) needs to be dried first (moisture content needs to be ≤2%) 2. Plastic particles need to be premixed with wood fiber (coupling agent is required to enhance bonding strength) |
| Extruder Type | Single screw extruder | Twin screw extruder |
| Cooling and shaping | Rapid water cooling or vacuum shaping (PVC has low cooling shrinkage and fast shaping) | Need to be cooled slowly in sections (wood-plastic composite materials have high shrinkage and are prone to deformation and cracking when cooled suddenly) |
| Post-processing equipment | Tractors and cutting machines can meet the needs | Need to add surface treatment equipment (such as sanding, laminating, improving imitation wood texture) |
Some equipment can be used interchangeably: such as tractors, cutters, cooling boxes, etc.
Key equipment is not interchangeable: PVC single-screw extruders cannot meet the mixing requirements of WPC. WPC-specific molds and temperature control systems cannot be directly used in PVC production.
As a leading provider of plastic profile making machines, Acemien Machinery offers customized technical audits to help you optimize your current setup. With over 10 years of experience, we provide turnkey factory solutions for clients worldwide.
Acemien Machinery is a leading manufacturer of high-performance plastic extrusion machinery. With over 10 years of expertise, we specialize in PVC roofing sheet machine, PVC foam board machine, PVC marble sheet machine, plastic profile machine, PVC pipe extrusion lines, sheet extrusion machines and recycling systems. Our ISO-certified solutions combine innovation, durability, and competitive pricing.
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