Shandong Zhaner Machinery lists this centrifugal fans with its own published specification, unedited. Supplier profile: 1 year on the platform. Send your target quantity and destination for a firm quotation with current lead times.
Key Features of These Centrifugal Fans
- 应用范围: 鼓风机
- 电源: 电热
- 额定电压: 380 V
- 电流类型: 交流
- 电机类型: 交流电动机
- 材质: 镁铝合金
Technical Specifications
| 应用范围 | 鼓风机 |
|---|---|
| 电源 | 电热 |
| 额定电压 | 380 V |
| 电流类型 | 交流 |
| 电机类型 | 交流电动机 |
| 材质 | 镁铝合金 |
| 风叶材质 | 铝合金 |
| 噪音等级 | 60-70dB |
| 压力 | 高压 |
| 保修 | 1年 |
| 定制服务 | OEM, ODM, OBM |
| 产地 | Shandong, China |
| 品牌名称 | WSR |
| 型号 | GGA22 |
| 电机 | （PMSM），效率≥97% |
| 轴承 | 自作用空气箔轴承（无油） |
| 旋转速度 | 20,000 至 50,000 rpm |
| 控制系统 | 集成变频器 |
| 冷却 | 风冷 |
| 节能 | 与罗茨鼓风机相比，效率提升高达 30% 至 40%。 |
| 维护 | 无油，滤芯每3到6个月检查一次。 |
| 认证 | ISO 9001、CE 文件可用 |
| 销售单位 | 单个商品 |
Product Details
PRODUCT HIGHLIGHTS
- 1. Up to 40% Energy Saving PMSM motor + high-efficiency impeller + VFD control
- 2. 100% Oil-Free Air Air foil bearing design eliminates oil lubrication and oil contamination.
- 3. Ultra-Low Noise & Vibration Contactless air foil bearing technology provides quiet and smooth operation.
- 4. Maintenance-Free Air Bearing System No gears, no lubricating oil, no oil filter — significantly reducing routine maintenance.
- 5. Smart Variable-Speed Control Automatically adjusts blower speed according to actual airflow and pressure demand.
A high speed turbo blower is a single-stage centrifugal blower using air foil bearing technology to support the shaft on a self-forming air film. At 20,000–50,000 rpm, the shaft operates with zero physical contact, eliminating oil lubrication and
mechanical bearing wear. The result is oil-free, low-vibration, low-maintenance and high-efficiency operation, making it ideal for
wastewater aeration, aquaculture and industrial air supply.
mechanical bearing wear. The result is oil-free, low-vibration, low-maintenance and high-efficiency operation, making it ideal for
wastewater aeration, aquaculture and industrial air supply.
Pain Point | Conventional Roots Blower | Air Foil Bearing Turbo Blower |
Annual electricity (110 kW actual load) | ~160,000 | ~100,000 (30–40% saving) |
Noise level | 90–115 dB | 70–75 dB (low noise) |
Maintenance | Oil changes, gear & belt service — 3–5% of equipment value per year | Maintenance-free bearing system; filter inspection every 3–6 months |
Oil contamination risk | Yes | 100% oil-free |
Control flexibility | Fixed speed | VFD variable speed, DO-linked automatic adjustment |
Feature | Air Foil Bearing Turbo Blower | Magnetic Levitation Blower | Roots Blower |
Oil-free operation | Yes | Yes | No |
Bearing complexity | Low — self-acting, no controls | High — requires power, sensors, backup battery | Low — mechanical contact |
Power failure safety | Safe coast-down | Requires UPS/battery backup | N/A |
Noise | 70–75 dB | 70–75 dB | 90–115 dB |
Maintenance | Minimal (filter only) | Minimal (software-driven) | Frequent (oil, gears, belts) |
Initial cost | Medium | High | Low |
Best for | Aeration, aquaculture, industry | High-load continuous industrial | Low-cost general purpose |
Strong Production Capacity
✔ Large inventory for fast response
✔ Stable supply for global projects
✔ Short delivery time for urgent requirements
✔ Large inventory for fast response
✔ Stable supply for global projects
✔ Short delivery time for urgent requirements
✔ Strong wooden cases — prevents damage during loading and delivery
Global Export Support
✔ Extensive export experience
✔ Familiar with international shipping requirements
✔ Support export documents and logistics coordination
✔ Familiar with international shipping requirements
✔ Support export documents and logistics coordination
标题
Global Logistics Support
✔ Experienced in international shipments
✔ Support export documents & customs clearance
✔ Reliable delivery to different regions
✔ Experienced in international shipments
✔ Support export documents & customs clearance
✔ Reliable delivery to different regions
Regional Support & Global Logistics
We provide localized payment solutions for Russian customers
Reliable shipping support for Middle East markets.
Ensuring smooth transactions and efficient delivery worldwide.
Ensuring smooth transactions and efficient delivery worldwide.
Malaysia Wastewater Treatment Upgrade
✔ Replaced4Roots blowers with 1 air foil bearing turbo blower system
✔ Improved efficiency by 2×
✔ Oil-free and clean operation
✔ Reduced maintenance requirements
✔ Replaced4Roots blowers with 1 air foil bearing turbo blower system
✔ Improved efficiency by 2×
✔ Oil-free and clean operation
✔ Reduced maintenance requirements
FAQs
What is the difference between an air foil bearing blower and a magnetic levitation blower?
Both are oil-free and highly efficient. The air foil bearing is self-acting — it generates its supporting air film from shaft rotation alone, with no external power, sensors or backup battery. It is structurally simpler, has fewer failure modes, and is more cost-effective for most aeration and aquaculture applications.
How much energy can I actually save?
Documented wastewater treatment retrofit projects show 30–40% reductions in aeration electricity cost. The exact figure depends on load variation — the more your airflow demand fluctuates, the bigger the saving from VFD variable speed operation.
Does the air foil bearing require lubrication?
No. The bearing operates entirely on a self-forming air film — no oil reservoir, no oil pump, no scheduled oil change. The blower is 100% oil-free.
Is it reliable for 24/7 continuous operation?
Yes — continuous operation is the standard use case. With no bearing surface contact at operating speed, MTBF is typically 40,000–80,000 hours or more, giving a long service life.
What flow and pressure ranges do you cover?
From approximately 2.3 m³/min to over 300 m³/min, with outlet pressures from 15 kPa to 120 kPa. For requirements outside this range, our engineers will recommend a custom configuration.
Can it replace my existing Roots blower without major piping changes?
In most cases, yes — standard flange connection to your existing air main, and the control panel integrates with most SCADA/PLC systems via Modbus or 4–20 mA.
What certifications do you hold?
We are ISO 9001 certified and can provide CE declaration of conformity documentation to support import requirements in European and other markets.
What is your MOQ and do you offer OEM?
Standard MOQ is 1 unit — we serve single-project buyers and volume distributors. OEM and private label are available for volume buyers, including custom nameplate, packaging and documentation in your brand. Lead time for standard configurations is typically 15–25 working days.
Ordering and Pricing
- Minimum order quantity: 1 piece
- Volume pricing:
- 1+ piece: US $7500 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this centrifugal fans?
The standard minimum order quantity is 1 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Shandong Zhaner Machinery Co., Ltd., based in China. The company 1 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Shandong Zhaner Machinery Co., Ltd. range on HVACR Nexus.
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