Reliable Lubrication System

Engineered for simplicity, the integrated lubrication system eliminates the need for external piping, enhancing reliability and reducing maintenance efforts

Purpose-Built Housing Design

Engineered for simplicity, the integrated lubrication system eliminates the need for external piping, enhancing reliability and reducing maintenance efforts

Extended Bearing Span

Featuring heavy-duty roller bearings, the gearbox provides strong shaft support, making it ideal for high-torque applications.

More about Hansen M4 ACC

Hansen M4 ACC is purpose-designed for air-cooled condenser fan drives. Its monoblock housing incorporates a motor mounting lantern and an internal lubrication system, simplifying installation.

• Nominal output torque: 15–70 kNm across seven sizes.
• Reduction ratios: 7.1:1–25:1, with special ratios available on request.
• Input speeds up to 1,800 rpm.
• Top-mounted motor connection without separate motor-to-gearbox alignment.
• Pump lubrication with no external oil piping.
• Drywell sealing arrangement at the low-speed shaft.
• Lubrication designed to remain effective during windmilling, when airflow turns the fan.

• Gearbox selection takes fan starting and stopping conditions into account.

More about Hansen M5CT

Hansen M5CT is a two-stage, right-angle gearbox developed for fan drives in wet cooling towers, air-cooled condensers and direct-air-capture installations.

• Nominal output torque: 13–53 kNm across seven sizes.
• Reduction ratios: 6.3:1–22.4:1, depending on gearbox size.
• Input speeds up to 1,800 rpm.
• Rigid housing designed to transfer high fan loads to the mounting feet.
• Extended bearing spacing and heavy-duty roller bearings for strong shaft support.
• Materials and protective finishes suited to humid, corrosive environments.
• Standard splash lubrication, with optional pump lubrication and no external oil piping.

• Options include temperature and vibration monitoring provisions, cooling equipment and adapter plates for replacement installations.

Hansen M5CT — Technical Specifications

Number of sizes 7
Housing Dedicated, rigid housing
Gearing Helical and bevel gears, designed and rated in accordance with AGMA
Reduction ratios 6.3:1–22.4:1; special ratios on request
Nominal output torque 13–53 kNm
Input speed Up to 1,800 rpm
Shaft configuration On request
Lubrication Standard splash lubrication; optional pump lubrication, both without external piping

Hansen M4 ACC — Technical Specifications

Number of sizes 7
Housing Monoblock housing with lantern housing
Gearing Helical gears (designed and rated in accordance with AGMA)
Reduction ratios 7.1:1 to 25:1 and special ratio's upon request
Nominal output torque from 15 to 70 kNm
Input speed Up to 1,800 rpm
Shaft configuration On request
Lubrication Pump with integrated lubrication (no outside piping)

Contact Minerva with your fan specifications, motor data and installation requirements for selection assistance.