Professional tri-lobe roots blower for wastewater treatment, pneumatic conveying, and industrial aeration. Certified by CE & ISO 9001. Exported to 50+ countries.
Investing in reliable air equipment saves you from costly downtime. See why HZSR is the smart upgrade for your operations.
Poorly maintained or low-quality blowers consume excessive power and require frequent repairs, driving up total operating costs.
Poor machining accuracy leads to rapid wear. You're calling maintenance every 3-6 months instead of focusing on production.
Uneven wear and vibration from imbalanced components force unplanned shutdowns. Every hour of downtime costs you production and revenue.
Precision-machined 3-lobe rotors with consistent clearance. Proven design that delivers stable airflow with long-term reliability.
High-quality bearings and hardened alloy steel timing gears. Built for continuous industrial operation with long service intervals.
Advanced labyrinth sealing system ensures zero oil contamination in the air stream. Clean, dry air output suitable for sensitive industrial processes.
Three optimized series for every industrial application. All models are CE certified and factory-tested before shipment.
Every HZSR blower is engineered for maximum efficiency, durability, and ease of maintenance. Here's what sets us apart.
Special labyrinth seal design prevents oil from entering the air chamber. Output air is completely oil-free and clean — safe for wastewater, aquaculture, food processing and other sensitive applications.
Heavy-duty cast iron casing, precision-ground rotors and gears. Designed for continuous 24/7 operation. Thousands of units running reliably in the field for 5-10+ years.
Rigid one-piece cast iron housing. High-quality bearings and timing gears. Proven design that withstands harsh industrial environments and reduces unplanned downtime.
Straightforward design with easy access to filters, oil level and belts. Routine checks take minutes. Spare parts are standardized and always in stock — no long waiting.
Every HZSR blower ships as a complete set: blower unit + motor + inlet filter + outlet silencer + safety valve + pressure gauge + base frame. Unpack, install, and start.
We use branded bearings, high-grade cast iron, and precision-machined rotors. Every unit undergoes factory testing before shipment to ensure reliable performance.
Each HZSR blower is tested under load in our factory. You receive a unit that has already been run and verified — not a box of untested parts.
Technical support via video call, email, or WhatsApp. Spare parts can be shipped worldwide. We stand behind every blower we sell.
Select the right model based on your required flow rate and pressure. Not sure? Contact our engineers for free selection assistance.
| Model | Port Dia. (mm) |
Speed (r/min) |
Flow Rate (m³/min) |
Pressure (kPa) |
Motor Power (kW) |
Weight (kg) |
|---|---|---|---|---|---|---|
| HZSR-50 | 50 | 1000-1500 | 0.5-1.4 | 9.8-58.8 | 0.75-2.2 | 65 |
| HZSR-65 | 65 | 1000-1500 | 1.0-2.7 | 9.8-58.8 | 1.1-4 | 82 |
| HZSR-80 | 80 | 1000-1600 | 1.8-4.3 | 9.8-58.8 | 1.5-5.5 | 120 |
| HZSR-100 | 100 | 1000-1600 | 3.0-8.2 | 9.8-68.6 | 2.2-11 | 198 |
| HZSR-125 HOT | 125 | 1000-1600 | 5.2-13.5 | 9.8-68.6 | 4-18.5 | 280 |
| HZSR-150 | 150 | 800-1400 | 8.5-21.0 | 9.8-78.4 | 5.5-30 | 380 |
| HZSR-200 HOT | 200 | 800-1300 | 14.0-38.0 | 9.8-78.4 | 7.5-55 | 720 |
| HZSR-250 | 250 | 600-1100 | 25.0-65.0 | 9.8-88.2 | 15-110 | 1250 |
| HZSR-300 | 300 | 500-900 | 40.0-100.0 | 9.8-98.0 | 22-185 | 2100 |
| HZSR-350 | 350 | 500-800 | 60.0-140.0 | 9.8-108.0 | 37-280 | 3200 |
* Parameters above are for reference. Actual selection depends on working conditions. Contact us for customized solutions.
HZSR roots blowers are engineered for diverse industrial applications. Find your industry below and see how we can help.
Aeration for municipal & industrial WWTP. Reliable solution for oxidation ditches and aeration tanks.
Low-pressure air for cement, grain, powder transfer. Reliable 24/7 operation.
Flue gas desulfurization (FGD) aeration. Anti-corrosion design for harsh environments.
Pond aeration for shrimp, fish farms. High O₂ transfer efficiency, low running cost.
Air supply for rotary kiln, pneumatic conveying of cement/clinker. Heavy-duty rated.
100% oil-free air. Complies with food safety standards. Stainless option available.
Roots vacuum pump configuration. For packaging, degassing, and drying processes.
Not finding your application? Our engineers provide free customized solutions within 24h.
ISO 9001 certified facility with CNC precision machining, rigorous testing, and professional assembly. Every HZSR blower is built to last.
Every HZSR blower is assembled with industry-leading components. We never compromise on quality — because your operation depends on it.
NSK/SKF high-speed bearings for smooth, quiet operation and extended service intervals.
Automatic over-pressure protection. Meets international safety standards for worry-free operation.
Easy visual inspection of lubrication status. Quick maintenance check without disassembly.
Prevents backflow, protects blower from reverse pressure damage. Reliable one-way flow control.
A professional roots blower manufacturer with real factory, real experience, and real commitment to quality.
Buy directly from the manufacturer. No middlemen, no markups. You deal with the people who actually build the blowers, so communication is faster and support is more reliable.
We have been producing roots blowers since 2007. Our team understands the technology inside and out, and we have thousands of units operating successfully in the field.
Standard models are usually in stock and can ship within 7-15 days. We respect your project schedule and always strive to deliver on time.
Need help with selection, installation, or troubleshooting? Our engineers are available to support you by video call, email, or WhatsApp.
Need a specific voltage, special coating, non-standard pressure, or custom configuration? Let us know your requirements — we'll work out a solution.
Spare parts are kept in stock and can be shipped when needed. We believe long-term cooperation comes from being there when our clients need us.
Don't just take our word for it. Here's what international buyers say about HZSR roots blowers.
"We replaced 3 old blowers with HZSR-200 units for our wastewater plant. Very satisfied with the performance and build quality. After one year of continuous operation, still running smoothly."
"Ordered 8 units for our cement plant in Indonesia. 18 months running, zero breakdowns. The anti-corrosion coating works great in our environment."
"Good quality and competitive pricing. The HZSR blowers have been running reliably for our aquaculture farm. Quick response from the team whenever we had questions."
Get a free selection recommendation from our engineers. Response within 4 hours during business days.
Have questions or need a quote? Fill out the form below or contact us directly. Our team typically responds within 4 business hours.
______, Jinan, Shandong, China
(Jinan Zhanghua Machinery Co., Ltd.)
+86 13869185580
sales@zhanghuablower.com
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Mon-Fri: 8:00-18:00 (GMT+8)
24/7 emergency support available
