WF-TH Horizontal Air-Cooled Unsupported Permanent Magnet Governor

WF-TH Horizontal Air-Cooled Unsupported Permanent Magnet Adjustable Speed Drive is a high-efficiency, energy-saving speed control device developed by Anhui voofu Permanent Magnet Technology Co., Ltd. for small to medium-power motor systems (typically suitable for centrifugal pumps and fans below 630kW). The product adopts permanent magnet drive technology and achieves a soft connection between the motor and the load through non-contact torque transmission. It features a wide speed regulation range, significant energy-saving effects, and stable, reliable operation. It is widely used in energy-saving retrofits of centrifugal loads such as fans and pumps in industries including power, metallurgy, chemical, cement, and coal.

Power range:

Horizontal motor systems with a matching power below 630kW are particularly suitable for typical equipment such as centrifugal pumps and fans, and can effectively meet application requirements in relevant scenarios.

Speed adjustment range:

0-97%, fast response speed, supports 4-20mA signal input.

Air gap adjustment:

Speed adjustment range

Cooling method:

Air-cooled type, which relies on cooling fins on the surface of the conductor rotor to dissipate heat via air convection.

Protection Class:

Suitable for high-dust and humid environments; the minimum air gap design prevents dust ingress.

Installation Method:

Horizontal unsupported structure simplifies the installation process and allows relatively large alignment errors (axial centerline deviation ≤1 mm, angular deviation ≤1°).

Product Overview

The WF-TH Horizontal Air-Cooled Unsupported Permanent Magnet Adjustable Speed Drive is a high-efficiency, energy-saving speed control device developed by Anhui voofu Permanent Magnet Technology Co., Ltd. for small to medium-power motor systems (typically suitable for centrifugal pumps and fans below 630kW). The product adopts permanent magnet drive technology and achieves a soft connection between the motor and the load through non-contact torque transmission. It features a wide speed regulation range, significant energy-saving effects, and stable, reliable operation. It is widely used in energy-saving retrofits of centrifugal loads such as fans and pumps in industries including power, metallurgy, chemical, cement, and coal.

Product Features

1. High Efficiency & Energy Saving

Wide Speed Regulation Range: Supports 30-97% stepless speed regulation, allowing precise adjustment of load speed according to actual demand, avoiding the "big horse pulling a small cart" phenomenon, with a power saving rate typically reaching 20%-50%.

Soft Start Function: The motor starts under no load, and the load accelerates smoothly by adjusting the air gap, reducing starting current surge and extending the life of both motor and load.

No Harmonic Interference: Pure mechanical speed regulation without power electronic components, avoiding harmonic pollution to the power grid and reducing reactive power loss.

2. Structural Advantages

Unsupported Design: Adopts an unsupported structure, simplifying the installation process, reducing alignment errors, lowering mechanical stress, and improving system reliability.

Air-Cooled Heat Dissipation: Uses convective heat dissipation through cooling fins on the conductor rotor surface, requiring no external cooling system, suitable for poorly ventilated areas.

Compact and Lightweight: Tubular structure design, small in size and light in weight, facilitating on-site layout and maintenance.

3. Strong Environmental Adaptability

Withstands Harsh Environments: Operates stably in extreme temperatures from -40°C to +100°C, suitable for high-dust, humid, flammable and explosive locations.

Explosion-Proof Performance: The main power part transmits torque without friction, generating no sparks or static electricity, suitable for applications with high explosion-proof requirements such as coal mines, oil fields, and chemical plants.

4. Low Maintenance Cost

Maintenance-Free Design: No bearings or wear parts, requiring only periodic air gap inspection and lubrication, with a design life exceeding 25 years.

Low Failure Rate: Non-contact transmission isolates vibration, reduces mechanical wear, and extends the life of key components such as motors, bearings, and seals.

Application Fields

The WF-TH Horizontal Air-Cooled Unsupported Permanent Magnet Adjustable Speed Drive is widely used in the following scenarios:

1. Power Industry: Boiler induced draft fans, primary air fans, circulating water pumps, etc.

2. Metallurgical Industry: Blast furnace blowers, dust removal fans, cooling water pumps, etc.

3. Chemical Industry: Compressors, mixers, circulating pumps, etc.

4. Cement Industry: Kiln head and kiln tail fans, raw mill fans, circulating water pumps, etc.

5. Municipal Water Supply: Urban water supply pumping stations, aeration fans in wastewater treatment plants, etc.

Product Advantages Summary

Significant Energy Savings: Optimizes load operation through stepless speed regulation, reducing pipeline losses and improving system efficiency.

Reliable and Durable: No mechanical connection design, isolates vibration, adapts to harsh environments, with a service life of up to 25 years.

Easy Installation: Unsupported structure, tolerates alignment errors, reducing installation and commissioning time.

Green and Environmental Friendly: No harmonics, no pollution, complies with national energy conservation and emission reduction policies.

Ordering Instructions

Please specify the mounting method, operating environment, and the requirements of the associated mechanical equipment when placing an order.

Other special requirements shall be agreed upon in a technical agreement. Due to technological advancements and revisions of relevant domestic and international standards, dimensions and technical parameters may change. Please confirm with our technical department or request formal outline drawings and related parameters when placing an order.

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