Does the gearbox require maintenance?

Yes, regular maintenance is recommended, including: Lubrication oil inspection and replacement, Seal checking, Vibration and noise monitoring.

Can you provide replacement gearboxes for brands like Marley or BAC?

Yes, we can supply compatible replacement gearboxes for major brands such as Marley, BAC, and other cooling tower systems.

Gearbox Reducer for Cooling Tower Fan 5000mm

Name: Gearbox Reducer for Cooling Tower Fan 5000mm
Brand: WEIFANG HENG AN IMP & EXP CO., LTD.
SKU: 1988904521

Shandong, ChinaWEIFANG HENG AN IMP & EXP CO., LTD.

US$150.00-1,000.00

1 Set

Product profile

Customization

Available

Application

Industrial

Speed

Low Speed

Model NO.

Gearbox Reducer-5000MM

Number of Stator

Three-Phase

Function

Driving

Casing Protection

Closed Type

Number of Poles

Starting Mode

Variable Frequency Starting

Certification

ISO9001, CCC

Brand

Hacst

Transport Package

Wooden Pallet + Plywood Case / Wooden Case

Specification

Axial Flow Cooling Tower Fan, Dia 1200-4500mm, Air

Trademark

HACST

Origin

China

Production Capacity

111

Key features

Right Angle Helical Bevel Design: Ensures high efficiency and stable torque transmission for fan drive applications.

High-Strength Cast Iron Housing: Internal gears made of alloy steel with precision machining and heat treatment for durability.

Compatible with Marley and BAC: Provides replacement gearboxes for major brands like Marley and BAC cooling tower systems.

Optimized for Large Cooling Towers: Reduces vibration and mechanical stress while ensuring stable operation under heavy loads.

ISO9001 and CE Certified: Passed CTI, AS1210, TUV, BV, SGS, and ISO system certifications for quality assurance.

Flexible Customization Options: Offers full, minor, and flexible customization based on samples or designs.

Siemens or WEG Motor Options: Motors from top brands offer reliable performance, strong starting capability, and long-term durability.

Long Service Life: Operates for 5-10 years or longer with proper maintenance and lubrication.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Exhibition Experience

WEIFANG HENG AN IMP & EXP CO., LTD.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 12 Year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.72h

AI-Powered supplier vetting

SummaryThe supplier is a combined manufacturing and service company offering cooling equipment and related products. It demonstrates broad customization capability, OEM service for well-known brands, stated quality and environmental management certifications, and relationships with several internationally recognized and domestic customers. Its production information covers cooling towers, evaporative condensers, air-cooled heat exchangers, and PVC film, supported by cutting and molding equipment. However, several management and innovation records are incomplete: finished-product inspections, supplier assessments, and corrective actions have procedures or instructions but lack written records; no new products were reported in the past year, and no ODM, SDK, 3D design, or dedicated professional technical supplier capability was indicated. Overseas support is provided through agents or branches and includes training and debugging, but no overseas warehouse or showroom is available.

CertificationsThe supplier states that it has passed ISO9001 quality management, ISO14001 environmental management, and OHSAS18001 occupational health and safety management system certifications. It also reports inventions and patents, providing explicit evidence of multiple management-system certifications.

After-Sales capabilityThe supplier states that it has an after-sales service system and offers overseas training and debugging through overseas agents or branches. It has participated in the China Refrigeration Show, but it has no overseas warehouse or showroom and lists zero countries for overseas service coverage, so the geographic breadth of support is limited or unclear.

Production capacityThe supplier lists production capacity for closed cooling towers, evaporative condensers, air-cooled heat exchangers, open cooling towers, and PVC film, with cutting and molding machines as combined facilities. It also states that manufacturing processes and testing methods are established, although finished-product inspection instructions have no written records, which weakens documented production-control evidence.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. Its description also states that complex products are tailored to specific customer requirements and that design solutions are provided, directly supporting strong customization capability.

Client casesThe supplier identifies strategic partnerships with Caterpillar WINGFAN, NRF, and ADRAD, along with domestic customers including CNNC, Yili, Shenmu Longhua, and CASIC. These named relationships provide explicit evidence of customer experience across internationally recognized and domestic organizations.

Product Q&A

Q:What type of gearbox is used in this cooling tower?

This cooling tower is equipped with a right-angle helical bevel gearbox, specifically designed for cooling tower fan drive applications, ensuring high efficiency and stable torque transmission.

Q:What is the function of the cooling tower gearbox?

The gearbox reduces motor speed (typically from 1450-1500 rpm) to a lower fan speed (around 200-400 rpm), while increasing torque to drive large cooling tower fans efficiently.

Q:What materials are used for the gearbox?

The housing is typically made of high-strength cast iron, and internal gears are made of alloy steel with precision machining and heat treatment, ensuring durability and long service life.

Q:Is the gearbox suitable for outdoor and humid environments?

Yes, it is specially designed for cooling tower conditions, featuring waterproof sealing, anti-corrosion coating, and reliable operation in high humidity environments.

Q:What is the service life of the gearbox?

Under proper maintenance, the gearbox can operate for 5-10 years or longer, depending on working conditions and maintenance practices.