China is a major global supplier of screw vacuum pumps, offering cost-effective and reliable solutions for industries like semiconductor manufacturing, chemical processing, pharmaceuticals, and food packaging. Below is a detailed overview of Chinese screw vacuum pump products, including leading brands, specifications, and applications.
| Manufacturer | Key Products | Notable Features | Website |
|---|---|---|---|
| Edwards (Atlas Copco China) | GHS, GHS II | Oil-free, dry screw, high vacuum | www.atlascopco.com |
| Pfeiffer Vacuum China | ATH, ASM series | High-performance, energy-efficient | www.pfeiffer-vacuum.com |
| Busch China | COBRA, SRE | Oil-lubricated, durable | www.buschvacuum.com |
| Wenling Tingwei Vacuum Pump | TW-SV series | Budget-friendly, industrial use | www.twvacuum.com |
| Shanghai EVP Vacuum Technology | EVP-SV series | Dry screw, low maintenance | www.evpvacuum.com |
| Shandong Zhangqiu Blower Co. | ZJ series | Roots + screw hybrid pumps | www.zhangqiublower.com |
No oil contamination (ideal for clean industries like semiconductors).
Lower maintenance (no oil changes required).
Examples: EVP-SV, Edwards GHS.
Higher durability for harsh conditions.
Better ultimate vacuum (~0.1 Pa).
Examples: Busch COBRA, TW-SV.
Combines screw and Roots technology for higher efficiency.
Used in large industrial systems.
Examples: ZJ series.
| Parameter | Typical Range | High-End Models |
|---|---|---|
| Pumping Speed | 50–2000 m³/h | Up to 5000 m³/h (industrial) |
| Ultimate Vacuum | 0.1–10 Pa (dry) | 0.01 Pa (oil-lubricated) |
| Power Consumption | 5–200 kW | Variable speed drives (VSD) available |
| Noise Level | 65–75 dB(A) | <60 dB(A) (low-noise models) |
| Materials | Stainless steel, aluminum | Corrosion-resistant coatings |
Semiconductor & Electronics: CVD, PVD processes.
Pharmaceuticals: Freeze drying, distillation.
Food Packaging: Modified atmosphere packaging (MAP).
Chemical Processing: Solvent recovery, degassing.
Industrial Vacuum Systems: Large-scale production lines.
✔ Cost-effective (30–50% cheaper than European/US brands).
✔ Wide availability of spare parts & local service.
✔ Customizable (OEM/ODM support).
✔ Energy-efficient models (IE3/IE4 motors).
Check Certifications: ISO 9001, CE, RoHS.
Compare Warranty & Support: 1–3 years typical.
Request Test Data: Flow rate, vacuum level, power draw.
Verify After-Sales Service: Local technicians?
Tell me your:
Required vacuum level (Pa/mbar/Torr)?
Flow rate (m³/h or CFM)?
Industry application?
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