Explosion-proof Motor 30kW 40Hp

The Explosion-Proof Motor 30kW 40Hp is one of the electric motors most trusted by customers, especially in industries, companies, and factories, thanks to its high safety features and efficient installation. This motor converts electrical energy into mechanical energy to operate at full capacity. Let’s explore more about this explosion-proof motor with Thanh Thai Motor, your reliable companion!

Overview design of the Explosion-Proof Motor 30kW 40Hp

The Explosion-Proof Motor 30kW 40Hp belongs to the category of explosion-proof motors above 3.7kW, specifically designed to meet strict safety requirements in potentially explosive environments. This motor complies with explosion-proof standards, helping to minimize risks during operation.

The explosion-proof motor features an external cast-iron housing that helps protect the motor safely. The electric motor withstands impacts well, and the larger internal wiring setup helps the motor endure unexpectedly high temperatures.

Internal structure of the Explosion-Proof Motor 30kW 40Hp

To maintain continuous operating performance at 30kW and ensure absolute safety in chemical or gas environments, all internal components of the motor must achieve explosion-proof certification.

• Stator: A stationary magnetic core pressed from electrical steel sheets with low magnetic loss. Pure copper windings are coated with a thick insulation layer and vacuum-impregnated with multi-layer Class F standard varnish to withstand high temperatures and completely prevent electrical discharge.
• Rotor: A robust solid-cast squirrel-cage rotating core, with an extremely smooth surface finish and computer dynamic balancing to completely eliminate mechanical friction causing sparks inside the machine chamber.
• Bearings: Assembled with heavy-load bearings from world-leading brands. The bearing system is integrated with multi-layer seals and non-flammable lubricating grease to prevent dust and gas from entering the shaft core.
• Cooling system: The centrifugal cooling fan blades must be made of anti-static plastic or specialized aluminum alloy material to avoid generating static sparks when rubbing against the air.

What types of explosion-proof electric motors 30kW 40Hp are available?

The Explosion-Proof Motor 30kW 40Hp product line is manufactured with 4 different rotational speed segments, helping engineers easily match the drive characteristics of each industrial machine. Below are the standard technical specifications for each type:

Explosion-proof motor 30kW 40Hp 2 poles (2,800 – 3,000 rpm)

This line focuses on high speed, suitable for equipment requiring large flow rates in a short time.

Technical specifications:

Model	200L
Shaft diameter	55mm
Keyway	16
Flange diameter	400mm
Weight	240kg
Dimensions	770 x 420 x 505mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Explosion-proof motor 30kW 40Hp 4 poles (1,400 – 1,500 rpm)

This is the standard rotational speed, providing optimal balance between torque and mechanical durability for heavy-duty equipment.

Technical specifications:

Model	200L
Shaft diameter	55mm
Keyway	16
Flange diameter	400mm
Weight	260kg
Dimensions	770 x 420 x 505mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Driving conveyor belts to continuously transport ore in underground mines without worrying about electrical short circuits.
• Used for screw air compressors in environments with high chemical vapor concentrations requiring absolute explosion safety.
• Operating large-scale industrial mixers in production workshops to maintain stable stirring force throughout the shift.

Explosion-proof motor 30kW 40Hp 6 poles (900 – 1,000 rpm)

This line is designed to create extremely strong torque, serving equipment with large loads and high inertia.

Technical specifications:

Model	225M
Shaft diameter	60mm
Keyway	18mm
Flange diameter	450mm
Weight	280kg
Dimensions	845 x 470 x 560 mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Ore grinders operating with heavy loads in flammable coal dust environments.
• Heavy-duty chain conveyors transporting raw ore from the extraction area to the stockpile.
• Bucket elevators lifting raw materials at industrial chemical material mixing stations.
• Large-volume material mixers operating continuously in areas with high explosive dust concentrations.

Explosion-proof motor 30kW 40Hp 8 poles (700 – 750 rpm)

The slowest speed, providing the largest starting torque, optimized for movements requiring high precision and strong thrust force.

Technical specifications:

Model	250M
Shaft diameter	60mm
Keyway	18mm
Flange diameter	550mm
Weight	280kg
Dimensions	910 x 510 x 615 mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Cargo winch systems at mining ports helping to move super-large load materials with well-controlled speeds.
• Hoisting mechanisms in armories or explosive material warehouses requiring high safety and slowness in every operation.
• Material calcining rotary kilns in industrial gas environments helping materials heat evenly thanks to slow rotation speed and strong pulling force.

Which gearbox does the explosion-proof motor 30kW 40Hp combine with?

Pairing the 30kW explosion-proof motor with drive equipment requires extremely strict safety factor calculations to ensure the gearbox is not damaged under the pulling force of the 40Hp motor.

• Heavy-duty helical gearbox: This is the standard option. It typically uses large gearbox codes such as R97, R107 or K97, K107 fully immersed in oil to pull mining conveyor systems.
• Worm gearbox with hollow shaft: Can be paired with vertical worm gearboxes codes WPA, WPS size 175 or 200 used in large-capacity mixing tanks.
• Drive coupling: It is mandatory to use hydraulic couplings or explosion-proof standard steel disc couplings for smooth starting, eliminating mechanical load shocks, and preventing friction-generated sparks.

Instructions on how to wire the explosion-proof motor

To ensure safety and accuracy during operation, you can follow these 5 basic steps:

Step 1: Check technical specifications

Before starting, carefully watch the beginning of the electric motor video to accurately grasp the motor’s technical specifications. Understanding the equipment clearly is a mandatory requirement before supplying power.

Step 2: Open the terminal box cover

Use appropriate mechanical tools to remove the bolts. Then, lift off the protective cover of the terminal box (identified by the red “EX” letter printed on the cover).

Step 3: Identify the position of the terminal posts

Observe the area inside the newly opened terminal box. You need to precisely locate the 3 contact posts labeled U, V, and W in preparation for wiring.

Step 4: Proceed with power connection

Take 3 lead cables from the power source (distinguished by red, yellow, and blue wire clips) and clip them respectively to the 3 corresponding U, V, and W posts identified in the previous step.

Step 5: Complete the operation

The basic wiring process is complete. To learn more complex wiring diagrams or refer to information about other machine lines, look for technical instruction compilation videos released by Thanh Thai Motor.

Warranty, shipping and commitment policy at Thanh Thai Motor

Warranty up to 24 months

All electric motor products distributed by Thanh Thai Motor are covered by a genuine warranty for up to 24 months. Customers who purchase electric motors can completely rest assured with a transparent, fast, and professional after-sales policy.

Nationwide Shipping

Thanh Thai Motor supports nationwide shipping for all electric motors sold, ensuring safe and on-time delivery to every province across the country. Whether you are in the North, Central, or South, we are ready to serve you.

European Standard Quality – German Technology

Thanh Thai Motor sells electric motors manufactured with German technology, meeting European quality standards, ensuring durability, high efficiency, and stable operation for a long period – suitable for the strict requirements of industrial electric motors.

Competitive Prices – Attractive Offers for Dealers and Wholesale Customers

We commit to reasonable motor prices, offering the best electric motor products with high discount policies for bulk purchasers and distribution units. The more you buy – the better the profit.

Quality Commitment – Powerful Operation, Power Saving

Thanh Thai Motor sells electric motors wound with 100% copper wire, helping the machine run powerfully, consume less electricity, operate smoothly, and effectively reduce vibration – extending equipment lifespan. When purchasing an electric motor, prioritizing products with 100% copper core will be a wise decision, bringing long-term value.

At Thanh Thai Motor, we provide a full range of products, with various phases and capacities, such as:

• 220V electric motors (or 220V 1-Phase electric motors) are 1-Phase electric motors commonly chosen for many household appliances and light industrial equipment, offering convenience and efficiency.
• 380V electric motors are 3-Phase electric motors using three-phase power, commonly used in heavy industrial applications.

Full CO, CQ Certification Documents

Thanh Thai Motor provides the best quality electric motors. Each imported electric motor product from Thanh Thai Motor comes with a Certificate of Origin (CO) and a Certificate of Quality (CQ), meeting the requirements for large projects, constructions, and strict technical documentation.

Contact for Purchase

Do you need to buy an electric motor or seek advice on choosing an affordable electric motor that suits your needs? Contact Thanh Thai Motor immediately using the methods below:

• WhatsApp: +84966596219
• Email: codienthanhthai@gmail.com

The Explosion-Proof Motor 30kW 40Hp not only meets strict safety standards but also delivers superior operating performance in harsh environments. With a durable design and short-circuit resistance, this motor is an ideal choice for many industrial applications with explosion risks. Contact Thanh Thai Motor today for consultation!