Are these fans suitable for long tunnels?

Yes, they are ideal for ultra-long tunnels and those with small cross-sections.

What certifications do the fans have?

The fans are certified with RoHS, UR, ISO, CE, and CCC.

Is OEM and ODM service available?

Yes, both OEM and ODM services are available with flexible customization options.

55kw, 75kw, and 90kw Explosion-Proof Variable Frequency Axial Flow Tunnel Fans

Name: 55kw, 75kw, and 90kw Explosion-Proof Variable Frequency Axial Flow Tunnel Fans
Brand: Zibo Hengding Fan Co., Ltd.
SKU: 2024340982

Shandong, ChinaZibo Hengding Fan Co., Ltd.

US$300.00

1-4 Pieces

US$280.00

5+ Pieces

Sample price:US$300.00/piece.Request sample

Product profile

Customization

Available

Material

Iron

Usage

Tunnel

Model NO.

SDF/SDDF

Flow Direction

Axial Flow

Pressure

High Pressure

Certification

RoHS, UR, ISO, CE, CCC

Color

Red/White/Grey/Yellow/Blue/Customized

Power

2.2kw~1250kw

Efficiency

92%

Sound Pressure

80dB

Impeller

Iron, Stainless Steel, Mn-Steel, Customized

Transport Package

Wooden Packing

Specification

Have many sizes,Can provide according to your need

Trademark

HNDING

Origin

Shandong, China

HS Code

8414593000

Production Capacity

10, 000 Units/Year

Key features

Explosion-Proof Design: Suitable for hazardous environments in tunnels, railways, and hydropower projects.

Multi-Stage Customization: Available in 3, 4, or 5 stages to meet specific pressure and flow requirements.

Tailor-Made Blades: Combines multiple main and guide blade types for full-condition customization.

High Efficiency: 92% efficiency with optimized aerodynamic design for significant energy savings.

Low Noise Operation: Sound pressure level of 80dB, ensuring environmental protection and safety.

Flexible Material Options: Impellers available in Iron, Stainless Steel, Mn-Steel, or customized materials.

Wide Power Range: Motor power options from 2.2kW to 1250kW to suit various tunnel sizes.

Standard Frequency Control: All units equipped with frequency conversion control systems for optimal performance.

Company profile

Importers and ExportersIn-stock CapacityQuality Assurance100% Finished Products Inspection

Zibo Hengding Fan Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Flexible customization CertifiedExport Year: 14 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.69h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier focused on mine fans, centrifugal fans, and special fan products. It provides 3D software design, flexible customization, ODM, and OEM services, but reported no new products in the past year and has no available SDK. Production resources include three production lines, 50 quality-control staff, listed metal-processing equipment, in-stock capability, and lead times within 15 working days in both peak and off-peak periods. It exports independently, with 41%–50% of sales from exports and markets in South America, Southeast Asia/Mideast, and Europe. Evidence confirms OEM service for well-known brands, but no specific customer names or case details are provided. No certification information, formal after-sales capability, or adequate financial-performance evidence is available in the provided slices.

Supplier typeThe supplier is explicitly described as a professional technical supplier and as an environmental-protection ventilation-equipment enterprise focused on mine fans, centrifugal fans, and special fan series. Its stated scope also includes technology import and export, with self-operated import/export rights indicated.

R&D capabilityThe supplier states independent research and development, continuous innovation, flexible customization, 3D software design, ODM capability, and OEM service for well-known brands. However, it reported no new products in the past year and has no available SDK, so the evidence supports established development services but not recent product innovation or software-platform capability.

Production capacityProduction evidence includes three production lines, 50 quality-control staff, extensive listed machining equipment, in-stock capability, and stated lead times within 15 working days in both peak and off-peak seasons. A deficiency is also documented: there is no valid manufacturing-capacity contract with the related subcontractor, which weakens production-governance assurance.

Customization capabilityThe supplier explicitly provides flexible customization through its R&D and design services, including 3D software design, and also offers ODM and OEM services. These capabilities directly support customized product development and manufacturing.

Client casesThe supplier states that it provides OEM services for well-known brands and exports to South America, Southeast Asia/Mideast, and Europe. However, no customer names, project descriptions, order references, or verifiable case studies are provided.