What certifications do your products hold?

Our products are certified with ISO 9001, CE, SGS, RoHS, UR, ISO, and CCC, ensuring quality meets global market standards.

What is the lead time for production and shipping?

Peak Season Lead Time: one month. Off Season Lead Time: within 15 workdays. We have rich shipping experience with over 200 shipments globally every year.

What after-sales services do you provide?

We provide a 12-month warranty for the whole machine (consumables excluded), lifetime technical consultation, installation guidance, spare parts supply, and fault response within 24 hours.

Variable Frequency Centrifugal Fan for Industrial Air Handling Systems

Name: Variable Frequency Centrifugal Fan for Industrial Air Handling Systems
Brand: Shandong Linfeng Technology Corp., Ltd.
SKU: 2154120292

Shandong, ChinaShandong Linfeng Technology Corp., Ltd.

US$5,399.00-5,899.00

1 Set

Sample price:US$2100.00/set.Request sample

Product profile

Customization

Available

Material

High Quality Carbon Steel and 304 Stainless Steel

Usage

for Manufacture, Corrosive Gas Treatment

Model NO.

F9-28-10C

Flow Direction

Centrifugal

Pressure

High Pressure

Certification

RoHS, UR, ISO, CE, CCC

Air Flow

20000 M³/H

Total Pressure

5000 PA

Temperature Range

30-95℃

Impeller Material

Stainless Steel 304

Casing Thickness

≥6 mm

Blade Thickness

≥6 mm

Shaft Material

45# Steel with 304 Sleeve

Motor Power

37 Kw

Motor Type

Variable Frequency Motor

Frequency Range

5-50 Hz

Motor Protection Grade

IP55

Sealing Type

Double Packing Seal

Application

Chemical Gas Handling

Transport Package

Steel Frame and Wooden Crate

Specification

High-pressure. Full 304 stainless steel flow parts

Trademark

LINFENG

Origin

China

HS Code

841459

Production Capacity

20000sets /Year

Key features

47 Years Manufacturing Expertise: Nearly half a century of technical accumulation and engineering wisdom.

Corrosion Resistant Materials: Full 304 stainless steel flow parts and high-quality carbon steel casing.

High Pressure Performance: Delivers up to 5000 Pa pressure suitable for chemical gas transport.

Flexible Customization: Custom voltage, frequency, material, and explosion-proof grade available.

Precision Machining: Large CNC machining centers ensure high accuracy and minimal error.

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

Energy Efficient Design: CFD-optimized aerodynamic design improves efficiency by over 15%.

Company profile

High Repeat Buyers ChoiceCustomization from DesignsQuality AssuranceCooperated with Fortune 500

Shandong Linfeng Technology Corp., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedNearest Port: Qingdao PortAverage Response Time: ≤3.20h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and product-development capabilities, including ODM service and new products introduced within the past year. It operates four production lines, reports annual centrifugal-fan output of 20,000 sets, and has six quality inspectors, with peak- and off-season lead times within 15 working days. Certifications include ISO9001:2015, ISO45001:2018, ISO14001, and CE. Quality, supplier-service, corrective-action, and complaint-handling procedures are documented and followed. The supplier also provides OEM services for well-known brands and exports 21%–30% of sales, although its stated overseas service coverage is zero. Financial evidence is insufficient for a reliable assessment because the supplied financial indicators are non-informative or unclear.

CertificationsThe supplier holds ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications, plus CE product compliance certification. These explicitly demonstrate established quality, occupational-safety, environmental, and product-compliance certifications.

After-Sales capabilityThe supplier has written and followed procedures for service assessment, corrective and preventive actions, and customer complaints. However, the stated overseas service coverage is zero, so the evidence supports formal service processes but not broad overseas after-sales coverage.

R&D capabilityThe supplier reports that it introduced new products during the past year and provides ODM services, demonstrating product-development activity. It does not have an available SDK, but SDK availability is not sufficient by itself to negate the documented R&D and ODM capabilities.

Production capacityThe supplier operates four production lines, lists laser cutting, shot blasting, CNC, boring and milling, welding, and painting equipment, and reports 20,000 centrifugal-fan sets of annual output. Six quality inspectors, standardized finished-product inspection instructions, and lead times within 15 working days support a developed production and quality-control capability.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are stated consistently across the R&D and production information, indicating broad customization coverage.

Client casesThe supplier explicitly states that it provides OEM services for well-known brands, which is evidence of at least one category of recognized-brand customer engagement. No specific customer names, project details, or performance outcomes are provided, limiting the depth of case verification.

Product Q&A

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

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.

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

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.

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

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

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

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.

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

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).