The plastics industry has dual requirements for production continuity and vacuum stability. Traditional oil-lubricated vacuum pumps generate oil mist during operation, posing a risk of contaminating plastic raw materials and affecting product surface quality. They also require regular oil changes and maintenance, affecting continuous production. Leynow oil-free vacuum pumps adopt an oil-free lubrication structure to prevent oil contamination from entering the vacuum system from the source, and have become the preferred configuration for multiple processes such as injection molding, extrusion, blow molding, vacuum forming, and vacuum feeding.
Challenges Faced by the Industry
The requirements of plastic production for vacuum systems are not just about "pulling a vacuum", but more importantly, cleanliness, stability, and resistance to continuous operation. In practical applications, customers often encounter the following types of problems:
Risk of Oil Contamination
Oil-lubricated vacuum pumps generate oil mist during exhaust, which may contaminate plastic raw materials and product surfaces, affecting product appearance and performance.
Pumping Speed Cannot Keep Up with the Cycle
Injection molding, extrusion, and other processes have fast cycles. Insufficient pumping speed of the vacuum pump will prolong the molding cycle and affect production efficiency.
Unstable Continuous Operation
Plastic equipment often needs to operate continuously for two or three shifts. Pump body overheating or vacuum fluctuations will directly affect product molding quality.
High Maintenance Costs
Vacuum pump oil needs to be replaced regularly, and the downtime for maintenance and consumable costs add up, affecting overall production efficiency.
Leynow Plastics Industry Solutions
Targeting the actual working conditions of the plastics industry, Leynow provides overall vacuum solutions centered on oil-free vacuum pumps, forming a complete service closed loop from equipment selection and installation and commissioning to post-maintenance.
Clean and Oil-free Vacuum Acquisition Method
Oil-free vacuum pumps adopt a self-lubricating structure, and the inner wall of the cylinder is specially treated. They do not generate oil mist or exhaust gas, preventing lubricating oil from entering the vacuum system, meeting the cleanliness requirements of plastic raw materials and products.
Selection Solutions Matched to Process Conditions
Based on the tonnage of the injection molding machine, the exhaust volume of the extruder, the volume of the molding chamber, and the production cycle, professional engineers provide selection suggestions to avoid efficiency and lifespan issues caused by "using a large pump for a small job" or "overloading a small pump".
Guarantee of Stable and Continuous Operation
For plastic production lines operating continuously in two or three shifts, the heat dissipation and lubrication structures are optimized to reduce the risk of pump body overheating, maintain stable vacuum degree output, and ensure molding and degassing quality.
Full-cycle Service and Parts Guarantee
Providing installation and commissioning, regular follow-up visits, and maintenance contract services. Repair parts are Leynow original genuine parts. All repair projects come with a 12-month warranty to reduce unplanned downtime.
Core Configured Equipment
According to different plastic application scenarios, the following core equipment can be flexibly configured:
| Application Process | Recommended Equipment | Main Function |
|---|---|---|
| Injection Molding | Oil-free Vacuum Pump | Mold vacuum pumping and auxiliary exhaust, reducing product bubbles and defects |
| Extrusion Degassing | Oil-free Vacuum Pump | Extruder vacuum degassing, removing moisture and volatiles from the melt |
| Blow Molding | Oil-free Vacuum Pump | Provide stable vacuum for blow molds, ensuring preform molding quality |
| Vacuum Forming (Blister) | Oil-free Vacuum Pump / Vacuum Unit | Vacuum adsorption forming after sheet heating, avoiding oil contamination of sheets |
| Vacuum Feeding and Conveying | Oil-free Vacuum Pump | Pneumatic conveying and automatic feeding of plastic pellets and powders |
Typical Application Scenarios
Leynow oil-free vacuum pumps have been widely used in multiple key processes of the plastics industry:
Injection Molding
Provide stable vacuum for injection molds, assist in exhaust, and reduce product bubbles and shrinkage defects.
Extrusion Degassing
Used in the vacuum degassing section of extruders to remove moisture and volatiles from the melt, improving product quality.
Vacuum Forming
Used for blister and thermoforming equipment, vacuum adsorption forming of sheets, clean and oil-free.
What Customers Can Gain
Choosing Leynow plastics industry vacuum solutions, customers can achieve practical improvements from the following dimensions:
Cleanliness Guarantee
Oil-free structure avoids oil mist contamination, improving product surface quality
Stable Operation
Stable vacuum degree output, adapting to continuous operation conditions of plastic production lines
Cost Optimization
No need for frequent replacement of vacuum pump oil, reducing consumables and maintenance costs
Service Response
24/7 fault support, on-site service can be arranged in the Pearl River Delta region
