What Is an MTW European Grinding Mill?

The MTW European Grinding Mill is a high-efficiency grinding machine developed by Henan Centbro Machinery (STM) Equipment Co., Ltd. for producing fine mineral powders.

The MTW series was developed by STM’s technical team based on European grinding technology and concepts. According to the STM brochure, the design incorporates technologies including bevel gear overall transmission, internal thin-oil lubrication and a curved air duct system.

The mill is designed to provide:

• Stable grinding operation
• Adjustable and controllable product fineness
• Efficient power transmission
• Convenient operation
• Wide material applicability
• Integrated dust collection

The brochure also states that the European Mill can be equipped with a dedicated dust collector to control dust emissions. Actual environmental performance should be evaluated according to the final equipment configuration and applicable local regulations.

Why Choose STM European Grinding Mill?

For mineral powder producers, choosing a grinding mill is not simply about machine capacity. The grinding system needs to match the material characteristics, required fineness, production capacity and complete production-line configuration.

The STM MTW European Grinding Mill is designed around these requirements.

1. European Grinding Technology Concept

The MTW series incorporates European grinding technology concepts and is developed by STM’s technical team for mineral powder processing.

Its design combines several key technologies, including bevel gear transmission, thin-oil lubrication and an optimized curved air duct.

2. Stable Power Transmission

The bevel gear overall transmission design is used to transfer power directly to the grinding system.

This helps simplify the transmission arrangement and supports stable operation of the grinding mill.

3. Internal Thin-Oil Lubrication

The MTW series uses an internal thin-oil lubrication system.

The lubrication system is designed as an integrated part of the mill, helping reduce routine lubrication work and supporting stable operation of key transmission components.

4. Adjustable Product Fineness

Different applications require different powder sizes.

The STM European Grinding Mill allows the finished product fineness to be adjusted according to processing requirements. The brochure lists a finished product range of approximately 1.6–0.045 mm, with the finest product reaching approximately 0.038 mm under specified conditions.

5. Wide Material Applications

The European Mill is suitable for powder-processing applications involving a wide range of mineral and industrial materials.

Typical applications include:

• Limestone grinding
• Barite grinding
• Calcite grinding
• Dolomite grinding
• Feldspar grinding
• Kaolin processing
• Bentonite processing
• Coal and coal-related materials
• Mineral powder production
• Building material processing
• Chemical material processing

The exact material suitability should be confirmed according to hardness, moisture, feed size and required final product fineness.

6. Integrated Dust Collection

STM’s European Grinding Mill can be configured with a dedicated dust collection system.

This helps control dust generated during grinding and classification and supports cleaner operation of the complete grinding line. The actual dust-emission performance depends on the selected dust collector, system configuration and local environmental requirements.

European Grinding Mill Working Principle

The MTW European Grinding Mill normally works as part of a complete grinding production line.

Step 1: Raw Material Feeding

Large raw materials are first reduced to a suitable feed size, generally using a jaw crusher as the primary crushing equipment.

STM’s brochure provides complete production-line configurations including a jaw crusher, feeder, bucket elevator, grinding mill, classifier and supporting equipment.

Step 2: Material Feeding

The crushed material is transported to the storage or feeding system and then fed into the European Grinding Mill at a controlled rate.

Step 3: Grinding

Inside the grinding mill, the material is ground by the grinding rollers and grinding ring.

The grinding process reduces the material to the required powder size.

Step 4: Classification

The ground material enters the classification system.

Particles that meet the required fineness are separated as qualified finished products, while coarser particles are returned for further grinding.

Step 5: Powder Collection

The qualified powder is collected through the powder collection system and transported to the finished-product storage area.

A dust collector can be integrated into the system to help control dust generated during the grinding process.

Main Features of STM European Grinding Mill

Feature	Advantage
European grinding technology concept	Designed for efficient mineral powder processing
Bevel gear transmission	Integrated power transmission structure
Thin-oil lubrication	Supports stable operation and lubrication management
Curved air duct	Optimized airflow design
Adjustable fineness	Suitable for different powder-processing requirements
Wide material applications	Suitable for various mineral and industrial materials
Dust collection system	Helps control dust during grinding
Complete production-line configuration	Can be combined with crusher, feeder and elevator

These features are based on the MTW European Mill configuration and description in the STM product brochure.

European Grinding Mill Applications

Limestone Grinding

The MTW European Grinding Mill can be used for limestone powder production for building materials, industrial processing and other applications.

Barite Grinding

For barite powder processing, the grinding system can be configured according to the required fineness and production capacity.

Calcium Carbonate Powder

The mill can be used for processing calcium-containing mineral materials such as limestone and calcite into fine powder.

Kaolin and Bentonite Processing

Fine mineral powders such as kaolin and bentonite can be processed using an appropriately configured grinding system.

Coal and Industrial Materials

The European Grinding Mill can also be used in powder-processing applications involving coal and other suitable industrial materials.

Industries Served

The MTW European Grinding Mill is applicable to powder-processing requirements in industries including:

• Mining
• Mineral processing
• Building materials
• Chemical industry
• Metallurgy
• Coal processing
• Industrial mineral production

STM European Grinding Mill Production Line

For customers who require a complete grinding plant rather than a single machine, STM can configure supporting equipment around the grinding mill.

A typical grinding production line may include:

Raw Material → Jaw Crusher → Feeder → Bucket Elevator → European Grinding Mill → Classifier → Powder Collector → Finished Product

The STM brochure provides standard production-line configurations using MTW110, MTW138 and MTW175, together with corresponding jaw crushers, bucket elevators, feeders and other supporting equipment.

The exact equipment configuration can be adjusted according to:

• Raw material
• Maximum feed size
• Required capacity
• Finished powder fineness
• Site conditions
• Dust-control requirements
• Customer’s investment budget

European Grinding Mill Technical Specifications

According to the STM product brochure, the following MTW models are listed:

Model	Grinding Rollers	Grinding Ring Diameter	Main Shaft Speed	Max. Feed Size	Finished Product	Capacity
MTW110	4	Φ1100 mm	120 rpm	≤30 mm	1.6–0.045 mm	3.5–10 t/h
MTW138	4	Φ1380 mm	96 rpm	≤35 mm	1.6–0.045 mm	6.5–15 t/h
MTW175	5	Φ1750 mm	75 rpm	≤40 mm	1.6–0.045 mm	11–25 t/h

The brochure notes that the finest product size can reach approximately 0.038 mm under specified operating conditions.

Note: Actual capacity depends on material properties, feed size, moisture, required fineness and production-line configuration. Final technical parameters should be confirmed with STM engineers before equipment selection.

How to Choose the Right European Grinding Mill?

Selecting the right grinding mill requires more than comparing model numbers.

1. Determine the Raw Material

First identify the material to be processed, such as:

• Limestone
• Calcite
• Barite
• Dolomite
• Feldspar
• Kaolin
• Bentonite
• Coal
• Other mineral materials

Different materials have different grinding characteristics.

2. Determine the Required Capacity

For example:

• Small-scale powder production
• Medium-scale mineral processing
• Larger continuous production

STM’s MTW series listed in the brochure covers approximately 3.5–25 t/h across the MTW110–MTW175 models.

3. Determine the Required Fineness

The desired finished powder size directly affects the selection of the grinding and classification system.

The MTW series is designed for adjustable product fineness, with the brochure listing a range of approximately 1.6–0.045 mm.

4. Consider the Complete Production Line

The grinding mill is only one part of the system.

A complete solution may include:

Jaw Crusher + Feeder + Bucket Elevator + Grinding Mill + Classifier + Dust Collector + Powder Collection System

STM can provide equipment configuration according to the customer’s actual production requirements.

STM: Your European Grinding Mill Supplier from China

Henan Centbro Machinery (STM) Equipment Co., Ltd. is a mining equipment manufacturer based in Zhengzhou, Henan, China.

According to the STM company brochure, the company integrates R&D, production and sales, with a production base covering approximately 8,000 square meters. Its product range includes crushers, ball mills, dryers and supporting mining equipment.

STM’s company brochure also states that the company has obtained ISO 9001:2008 quality management system certification and EU CE certification, with products exported to Russia, Kazakhstan, the Philippines, the Middle East, South America, Africa and other markets.

For equipment purchased from STM, the company states that professional after-sales engineers can be assigned to customer sites for installation, commissioning and equipment planning/management support.

Complete Grinding Solution from STM

Choosing STM means more than purchasing a grinding mill.

We can help customers evaluate:

Raw Material → Crushing → Feeding → Grinding → Classification → Dust Collection → Finished Powder

Based on your material and production requirements, STM can help determine the appropriate grinding mill model and supporting equipment.

This makes the MTW European Grinding Mill suitable for customers looking for a complete mineral powder grinding solution rather than a standalone machine.

Get the Right European Grinding Mill for Your Project

Looking for an MTW European Grinding Mill for limestone, barite, calcite, dolomite, kaolin, bentonite or other mineral materials?

Send STM the following information:

• Material name
• Maximum feed size
• Required capacity (t/h)
• Required powder fineness
• Working hours per day
• Application of the finished powder
• Project location

Our engineers can recommend a suitable grinding mill model and complete production-line configuration.

Frequently Asked Questions

What is an MTW European Grinding Mill?

The MTW European Grinding Mill is a grinding machine developed by STM based on European grinding technology concepts. It incorporates bevel gear transmission, thin-oil lubrication and a curved air duct design for mineral powder processing.

What materials can the European Grinding Mill process?

It can be used for a wide range of mineral and industrial materials, including limestone, barite, calcite, dolomite, feldspar, kaolin, bentonite and suitable coal-related materials. The final selection should be confirmed according to material characteristics and required fineness.

What is the capacity of the STM MTW European Mill?

The STM brochure lists MTW110, MTW138 and MTW175 models with capacities of approximately 3.5–10 t/h, 6.5–15 t/h and 11–25 t/h, respectively.

What is the finished powder size?

The listed finished product range is approximately 1.6–0.045 mm, with the finest size reaching approximately 0.038 mm under specified conditions.

Can STM provide a complete grinding production line?

Yes. The STM brochure shows European Grinding Mill production-line configurations including the grinding mill, jaw crusher, feeder, bucket elevator and other supporting equipment.

Can STM help with installation?

According to the company brochure, STM can assign professional after-sales engineers to customer sites for installation, commissioning and equipment planning/management support.