Silent Cabinet Roots Blower for Chemical Gas Transport and Process Air Systems

• Customization: Available
• Material: High Quality Carbon Steel
• Usage: for Manufacture, Wastewater Treatment / Aeration / Gas Supply
• Model NO.: LFSR150G
• Flow Direction: Positive Displacement Rotary Machine
• Pressure: High Pressure
• Certification: RoHS, UR, ISO, CE, CCC, Export Standard
• Air Flow: Medium Capacity
• Total Pressure: High Pressure
• Structure Type: Soundproof Cabinet Type
• Motor Power: 30 Kw
• Application: Industrial Aeration System
• Application2: Pneumatic Conveying System
• Noise Control: Multi-Stage Soundproof System
• Safety Devices: Safety Valve + Check Valve
• Control System: Pressure Switch Equipped
• Packaging: Export Wooden Case with Bubble Wrap
• Drive Type: Belt Driven System
• Vibration Control: Multi-Point Shock Absorbers
• Inlet Connection: DN150 Standard
• Outlet Connection: DN150 Standard
• Transport Package: Steel Frame and Wooden Crate
• Specification: high-pressure explosion-proof
• Trademark: LINFENG
• Origin: China
• HS Code: 841459
• Production Capacity: 20000sets /Year
• Package Size: 200.00cm * 150.00cm * 190.00cm
• Package Gross Weight: 3000.000kg

Product Description

 Complete soundproof cabinet system significantly reduces operating noise
30kW high power motor ensures stable high pressure output
Integrated belt drive system improves transmission flexibility and maintenance
Full safety configuration: safety valve, check valve, pressure switch
Multi-stage silencing: inlet silencer + outlet silencer system
Anti-vibration design with multiple shock absorbers for stable operation
Corrosion-resistant components suitable for industrial environments
Ideal for wastewater, cement, chemical and pneumatic conveying systems

High-Efficiency Industrial Centrifugal Fan / Blower /47 Years of Expertise · German Technology · Global Trust

This series of products is a new generation of high-efficiency and energy-saving fans, developed based on our 47 years of manufacturing experience combined with international advanced aerodynamic technology. With optimized structural design and stable operation,these fans are widely used in industrial ventilation, agricultural drying, commercial exhaust, environmental protection, and other fields.

Core Advantages:

1.47 Years of Expertise: Nearly half a century of technical accumulation, with every fan embodying the wisdom of generations of engineers

2.Premium Materials: National standard high-quality steel with sufficient thickness and high strength for long-lasting durability

3.Precision Machining: Equipped with large CNC machining centers for high accuracy and minimal error

4.Strict Quality Control: Each unit undergoes dynamic balancing test and trial run before delivery

5.Flexible Customization: Custom voltage,frequency, material, explosion-proof grade available upon request

Over 47 years, we have:

Continuously optimized impeller blade angles, improving efficiency by over 15%
Constantly improved welding processes to ensure sturdy, deformation-resistant housings
Carefully selected core components like bearings and motors to extend overall service life

Specification

Model	Airflow (m³/h)	Total Pressure (Pa)	Motor Power (kW)	Speed (rpm)	Inlet Size (mm)	Outlet size(mm)	Weight (kg)
2.8A	1131-2356	600-320	1.5	2900	160	140	45
3.2A	1688-3517	800-400	2.2	2900	180	160	55
3.6A	2664-5268	1000-500	3	2900	200	180	70
4A	3500-7000	1200-600	5.5	2900	220	200	90
4.5A	4500-9000	1400-700	7.5	2900	250	220	115
5A	5500-11000	1600-800	11	2900	280	250	145
6A	8000-16000	1200-600	7.5	1450	320	300	185
6C	8000-18000	1400-700	11	1800	320	300	220
8C	15000-30000	1600-800	18.5	1600	400	380	320
10C	25000-50000	1800-900	30	1250	500	480	480
12C	40000-80000	2000-1000	55	1000	600	580	650

Core Advantages
1. High Efficiency & Energy Saving	CFD-optimized aerodynamic design delivers higher airflow at the same power consumption, reducing energy costs and enabling low-carbon production.
2. Stable & Durable	High-strength alloy steel shaft with heat treatment, paired with imported heavy-duty bearings. G2.5/G4.0 dynamic balancing ensures low vibration, low noise, and long service life under harsh conditions.
3. Easy Installation	Compact structure with small footprint allows direct installation on existing ducts. Modular design provides easy maintenance access without disassembling pipelines.
4. High Adaptability	Wide temperature tolerance (-50°C to 800°C). Wear-resistant linings or anti-corrosion coatings available for dusty or corrosive gases. Explosion-proof configuration meets safety standards.
5. Low Noise & Intelligent Control	Compatible with VFD systems for automatic airflow adjustment based on demand. Optimized volute structure and silencing components ensure quiet operation and improved working environment.

Comprehensive Industrial Fan Solutions – Customization Available

LINFENG can design and manufacture fans and blowers for various industrial applications.
for customized solutions.

Packing & Delivery

Packing

Shipping

1.Steel Frame:Reinforced steel structure for heavy-duty equipment
2.Wooden Case:Standard export fumigation-free wooden case for impact protection
3.Anti-corrosion Treatment:Rust-proof oil applied to exposed metal parts
4.Waterproof Treatment:Moisture-proof packaging at motor connections and key areas

1.By Sea:From Qingdao Port to major ports worldwide
2.By Rail:China-Europe Railway ExpressCentral Asia and Europe
3.By Land:Via Alashankou / Khorgos ports to Central Asian countries

4.Product Certificate,Test Report,Installation and Operation Manual Provided

5.Over 200 shipments globally every year, rich shipping experience,

Delivering every machine safely to every corner of the world.

Certifications

Applications

Steel & Metallurgy

Blast furnace air supply, sintering machine flue gas extraction, converter gas recovery, workshop ventilation

Chemical & Petrochemical

Conveying flammable/explosive/corrosive gases, reactor exhaust, acid/alkali vapor extraction

Power Generation

Boiler FD/ID, desulfurization oxidation air supply, coal mill exhaust, cooling tower ventilation

Building Materials & Cement

Cement kiln induced draft, coal powder preparation, glass furnace combustion air, ceramic drying

Other Applications :  Environmental Protection ,Mining,Food & Pharmaceutical,Agriculture & Storage,Mining and so on 

Company Profile

Our advantage

47 Years | The Source Manufacturer for Fans

Full Industry Chain Manufacturing: With 40 years of expertise, we integrate research and developing, design, and production serving as your one-stop solution as a source factory for fans.
Dual-Mode Cooperation: We fully support both OEM (Original Equipment Manufacturing) and ODM (Original Design Manufacturing) to meet all of your needs.
International Compliance Certifications: Our products are certified with ISO 9001, CE, SGS, and more, ensuring quality meets  global market standards.
Customized Solutions: We focus on providing efficient, reliable, and tailored fan solutions for you.
Cost-Effectiveness Guarantee: Leveraging large-scale production and supply chain advantages, we ensure you receive exceptional products at the most competitive cost.

 We provide Standard and customized fan solutions for heavy industries including steel, chemical, building materials, power, and environmental protection.Contact us for your customized solution!

After Sales Service

Pre-Sales Service

In-Sales Service

After-Sales Service

Free fan selection, parameter matching, solution design

Test samples available before mass order

Welcome to visit our factory and see the production process

Real-time progress updates from order to shipment

Key process photos for confirmation, third-party inspection available

Voltage, frequency, material, discharge position customized as required

Warranty: 12 months warranty for the whole machine (consumables excluded)
Technical Support: Lifetime technical consultation
Installation Guidance: Drawings and video guidance provided; on-site technician available
Spare Parts Supply: Original parts always available for continuous operation
Fault Response: Response within 24 hours, solution within 48 hours

FAQ

1.Q: Are your fans certified with international standards like CE, AMCA, or ATEX?

A: Yes. Our standard range is CE certified. We also offer AMCA-rated fans for performance assurance and ATEX/IECEx certified models for explosive atmospheres. Relevant certificates can be provided upon request.

2.Q: What is your Minimum Order Quantity (MOQ)? Can I order a single unit for testing?

A: MOQ for standard fans is 1 unit. Sample orders are welcome. Please note that samples are charged and shipping costs apply. Customized designs may have higher MOQs.

3.Q: Do you support OEM/ODM manufacturing? Can we use our own logo and packaging?

A: Absolutely. We are experienced in OEM/ODM projects. All details including branding, packaging, and technical specifications can be customized under a confidentiality agreement.

4.Q: How do you handle customization requests? What information do I need to provide?

A: Please provide: 1) Required air flow & pressure; 2) Operating medium and temperature; 3) Voltage & frequency (e.g., 480V/60Hz); 4) Installation environment; 5) Any special standards. We will then offer a tailored quotation and design drawing for approval.

5.Q: What is your warranty policy for international buyers? How do you handle technical support or repairs?

A: We offer a standard 18-month warranty from shipment date. We provide remote video support and can dispatch replacement parts promptly via international courier. For major issues, we can arrange for local service partners or engineer visits (terms apply).