| Product Series | MTW Trapezium Grinding Mill |
|---|---|
| Model Range | MTW110 / MTW138 / MTW175 / MTW215 |
| Grinding Mechanism | Trapezoidal roller & grinding ring with integral bevel gear transmission |
| Feeding Size | ≤30mm - ≤45mm (model-dependent) |
| Output Fineness | 0.038-0.2mm (80-425 mesh, stepless adjustable) |
| Capacity Range | 3 - 50 t/h |
| Motor Power | 55 - 220 kW (main unit) |
| Applicable Materials | Limestone, calcite, barite, talc, dolomite, quartz, gypsum, calcium carbonate, kaolin, etc. (Mohs hardness < 7, humidity < 6%) |
| Brand | Mascot Heavy Industry |
| Packing | Standard containers, Nude Packing, Wooden boxes |
| Installation | Engineer-guided installation and commissioning |
| Factory Visit | Warmly Welcomed |
| Export Regions | Southeast Asia, Central Asia, South America, North America, Africa |
| Payment Terms | T/T, L/C, PayPal, etc. |
| Note: The above data is for reference. Contact us for project-specific parameters. | |
1. Overview of MTW Trapezium Grinding Mill
The MTW Trapezium Grinding Mill (also known as the European-type Trapezium Mill) is the flagship grinding product of Mascot Heavy Industry, specially designed for medium and fine powder processing of non-metallic minerals with Mohs hardness below 7 and moisture content less than 6%. Building upon traditional Raymond mill technology, the MTW series integrates trapezoidal roller and grinding ring geometry, integral bevel gear transmission, and an internal dilute oil lubrication system to deliver superior performance in mining, building materials, chemical engineering, and metallurgy.
Compared with conventional grinding mills, the MTW series adopts a trapezoidal grinding roller and grinding ring that enlarge the effective grinding area, improving grinding efficiency by 20%-30% at the same motor power. The integral bevel gear transmission reduces invalid energy consumption by about 15%, while the curved tangential air duct and fully sealed design ensure blockage-free operation and dust emission below 20mg/m³, meeting strict international environmental protection standards. The integrated PLC control system provides one-key start and stop and remote monitoring.
The MTW series spans four models from compact MTW110 to large-scale MTW215, covering capacities from 3 t/h to 50 t/h. Among these, models MTW138 and MTW175 represent the most widely deployed configurations, offering an optimal balance of throughput, energy consumption, and capital investment for mid-to-large-scale grinding operations worldwide.
2. Complete Technical Parameters: MTW110 - MTW215
The following table presents the full technical specifications for all four MTW Trapezium Grinding Mill models. Models highlighted in bold are the most popular configurations for mainstream industrial applications.
| Model | Roller Size (mm) | Grind Ring Inner Dia./Height & Length (mm) | Feed Size (mm) | Output Size (mm) | Capacity (t/h) | Main Motor Power (kw) | Powder Classifier (kw) | Blower (kw) |
|---|---|---|---|---|---|---|---|---|
| MTW110 | 360x210 | 1100x210 | ≤30 | 0.038-0.2 | 3-10 | 55 | 18.5 | 55 |
| MTW138 | 460x260 | 1380x260 | ≤35 | 0.038-0.2 | 6-20 | 90 | 22 | 132 |
| MTW175 | 520x300 | 1750x300 | ≤40 | 0.038-0.2 | 10-35 | 160 | 37 | 200 |
| MTW215 | 640x340 | 2150x340 | ≤45 | 0.038-0.2 | 20-50 | 220 | 37 | 250 |
Table 1: Complete MTW Trapezium Grinding Mill technical parameters. Highlighted rows represent the most popular models.
3. Popular Models - Detailed Analysis
3.1 MTW138 Trapezium Grinding Mill - The Best-Selling Mid-Range Model
The MTW138 is the most popular model of the entire MTW series and the first choice of medium-sized powder plants. With a compact footprint, a 90kW main motor and a capacity of 6-20 t/h, it delivers roughly double the output of the entry-level MTW110 while the installed power increases by only 64%, making it the best capacity-to-energy ratio of the lineup and the most cost-effective configuration for operations requiring medium throughput.
| Roller Configuration | Trapezoidal rollers, 460x260mm each |
| Grinding Ring | Inner diameter 1380mm, height/length 260mm |
| Max Feed Size | ≤35mm |
| Capacity | 6-20 t/h (varies by material hardness and target fineness) |
| Motor Power | 90 kW (main unit). Powder classifier: 22 kW; Blower: 132 kW |
| Best For | Medium-scale limestone, calcite, barite, talc and gypsum powder production |
| Key Advantage | Best capacity-to-energy ratio of the series; most ordered model worldwide |
The MTW138 is widely deployed for processing limestone, calcite, barite, talc, dolomite and gypsum, with the finished fineness freely adjustable between 80-425 mesh to serve different downstream industries such as building materials, chemical, rubber, plastic filler and flue-gas desulfurization. Thanks to the integral bevel gear transmission and internal dilute oil lubrication system, the MTW138 runs stably with low noise, and the bearing oil change cycle is as long as 4 months, greatly reducing daily maintenance. For medium-scale producers who need a reliable workhorse with quick return on investment, the MTW138 is the most recommended configuration.
3.2 MTW175 Trapezium Grinding Mill - The High-Output Workhorse
The MTW175 is the flagship high-output model for large and medium production lines, equipped with 520x300mm trapezoidal rollers, a 1750mm grinding ring and a 160kW main motor, delivering 10-35 t/h. It is the top-selling large-scale model in the series, engineered for high-volume grinding operations where throughput, stability and finished powder quality are paramount.
| Roller Configuration | Trapezoidal rollers, 520x300mm each |
| Grinding Ring | Inner diameter 1750mm, height/length 300mm |
| Max Feed Size | ≤40mm |
| Capacity | 10-35 t/h |
| Motor Power | 160 kW (main unit). Powder classifier: 37 kW; Blower: 200 kW |
| Best For | Large-scale limestone, calcite and dolomite powder; concrete admixture and desulfurization lines |
| Key Advantage | High output with 99.6% finished powder pass rate; proven by real Southeast Asia case |
With a 520x300mm roller and a 1750mm grinding ring, the MTW175 can directly accept feed materials up to 40mm, matching the discharge of standard jaw crushers and eliminating intermediate screening. Its 37kW high-efficiency powder classifier ensures stable, uniform fineness even at maximum throughput. Real operating data from a Southeast Asian limestone powder plant shows an average output of 31 t/h at 250 mesh with a 99.6% pass rate and 22% lower energy consumption per ton than traditional mills — full details in Section 8.
4. Other Models - Quick Reference
4.1 MTW110 - The Entry-Level Compact Model
The MTW110 is the smallest unit of the series, featuring 360x210mm trapezoidal rollers, a 1100x210mm grinding ring and a 55kW main motor, producing 3-10 t/h. Its compact design and low energy consumption make it ideal for small-scale plants, pilot projects, startup grinding businesses and enterprises with limited budgets. For most small producers, however, the MTW138 offers better long-term value when output demand grows.
4.2 MTW215 - The Maximum-Capacity Flagship
The MTW215 is the largest MTW model, featuring 640x340mm trapezoidal rollers and a 220kW main motor. With a capacity of 20-50 t/h, a 2150x340mm grinding ring and a feed size up to 45mm, it targets ultra-large-scale operations such as centralized powder production bases and large mining complexes, maximizing single-line throughput and minimizing unit production cost for bulk commodity powders. Due to its substantial power requirements and investment cost, it is deployed selectively for projects where throughput demands justify the scale.
5. Model Selection Guide
| Production Need | Recommended Model | Capacity | Typical Application |
|---|---|---|---|
| Small Production Line / Pilot | MTW110 | 3-10 t/h | Startup grinding business, small-scale powder supply |
| Medium Production Line | MTW138 | 6-20 t/h | Regional powder producer, mineral processing (best-selling) |
| Large Production Line | MTW175 | 10-35 t/h | 250-mesh limestone powder, concrete admixture, desulfurization |
| Ultra-Large Production Base | MTW215 | 20-50 t/h | Centralized powder production, large mining complex |
6. Standard System Configuration
A complete MTW Trapezium Grinding Mill system includes the following components:
7. Core Technical Advantages of MTW Series
7.1 Trapezoidal Roller & Grinding Ring Design
The trapezoidal-shaped grinding roller and grinding ring enlarge the effective grinding area and improve grinding efficiency by 20%-30% at the same motor power, delivering higher throughput and finer output while extending the wear surface life.
7.2 Integral Bevel Gear Transmission
Traditional split transmission is difficult to install and produces noise and energy loss. The integral bevel gear of the MTW series has a compact structure, stable transmission and higher energy utilization rate, reducing invalid energy consumption by about 15%.
7.3 Internal Dilute Oil Lubrication System
A built-in oil pump realizes circulating lubrication of key bearings, replacing traditional grease lubrication that has large resistance and high temperature rise. The oil change cycle is as long as 4 months, greatly reducing daily maintenance work and extending bearing service life.
7.4 Curved Tangential Air Duct
The curved tangential air inlet has small airflow resistance and disperses materials evenly in the air duct, effectively solving the blockage problem of the straight air duct used in old-fashioned grinding mills and ensuring stable, continuous operation.
7.5 Sealed Design, Clean Emission & PLC Control
The fully sealed equipment matched with a high-efficiency pulse dust collector keeps dust emission below 20mg/m³, reaching strict international environmental protection standards. The PLC intelligent control system enables one-key start and stop and remote monitoring, and workers can master the operation skills in a short time, effectively saving labor costs.
8. Application Case Study
Case 1: Southeast Asian Limestone Powder Plant - MTW175 Deployment
A large building materials enterprise in Southeast Asia, which produces limestone powder for concrete admixtures, originally used traditional grinding mills with problems of low single-hour output, serious dust pollution, frequent wearing-part failures, high maintenance cost and uneven finished powder fineness. After market investigation and equipment comparison, the enterprise chose the Mascot MTW175 Trapezium Grinding Mill complete production line in August 2025.
Mascot arranged professional engineers to survey the site and customize the production line layout. With raw limestone of ≤40mm and moisture ≤5%, the line was designed for 250-mesh powder at 28-32 t/h. All equipment was produced and debugged within 18 working days, then two senior installation engineers guided installation, commissioning and worker training; the whole line was officially put into operation 28 days after the equipment arrived at the site.
Post-commissioning performance data confirmed:
The customer has signed an intention agreement for a second MTW Trapezium Grinding Mill production line to expand production scale, fully verifying the excellent performance, stability and cost-saving advantages of the MTW series in large-scale non-metallic mineral powder production.
9. Frequently Asked Questions
Q1: How do I choose between MTW110, MTW138, MTW175, and MTW215?
The decision depends primarily on required capacity. MTW110 (3-10 t/h) suits small operations and pilot lines; MTW138 (6-20 t/h) is ideal for medium-scale plants; MTW175 (10-35 t/h) targets large production lines; MTW215 (20-50 t/h) is for ultra-large production bases. Consider future expansion plans - choosing one model higher than current needs often provides better long-term value.
Q2: Can the finished powder fineness be adjusted during operation?
Yes. The fineness is adjusted by the frequency-conversion classifier on the top of the main mill. Increase the impeller speed for finer powder and reduce it for coarser powder. The whole adjustment can be completed on the PLC control panel without shutting down the equipment. It is recommended to adjust the speed in a small range each time and check the finished powder quality 5-10 minutes after each adjustment.
Q3: What is the typical wear-part replacement interval?
Grinding rollers and grinding rings: 8-12 months for medium-hard materials (limestone, calcite). For high-abrasion materials such as quartz stone, expect 4-7 months. Strictly controlling feed size, keeping feeding stable and regularly checking the dilute oil lubrication system extend service life.
Q4: Can the MTW mill handle materials with moisture above 6%?
For materials with moisture content exceeding 6%, pre-drying is recommended. Operating with high-moisture feed can cause material adhesion to rollers and ring, reducing efficiency and potentially causing blockages. The recommended moisture limit for direct feeding is <6%.
About of Mascot
Zhengzhou Mascot Environmental Technology Co., Ltd is a high-tech mining equipment company integrating R&D, manufacturing, sales, and after-sales service. Focusing on crushing, grinding, and mineral processing equipment, we provide professional solutions to our customers. We are ISO9001:2015 certified, and our products include mobile crushing plants, jaw crushers, cone crushers, sand making machines, Raymond mills, MTW trapezium mills, ball mills, dryers, dust collectors, etc., all with reliable performance to meet diverse project needs.
• Professional pre-sales support: Free project design and comprehensive solutions to help you accurately select the right equipment;
• Comprehensive on-site service: Providing installation guidance and worker training to ensure smooth equipment commissioning;
• Reliable after-sales guarantee: A complete after-sales system, timely response to technical inquiries and equipment maintenance, ensuring long-term stable operation.
To protect your rights, please contact us through the following official channels for professional service:
WhatsApp: 0086-16650273865
Email: mascot@mascotenv.com
We are committed to providing high-quality equipment and full-cycle services to deliver comprehensive intelligent solutions for the global mining industry!
This production line utilizes a three-ring medium-speed micro-grinding mill as the central equipment, complemented by other auxiliary equipment like hammer crushers, bucket elevators, and storage silos to establish a comprehensive grinding operation system. It has demonstrated strong potential for application and market competitiveness in industries such as construction, chemical industry, and new materials.
YGMX Enhanced High-Pressure Mill is a new type of high-performance grinding equipment, and the biggest improvement of this milling equipment lies in the increase of the high-pressure spring system in the grinding roller part. Compared with the traditional high-pressure roller mill, it has a wider scope of application and excellent performance to meet the production needs of a variety of powder fineness. It is widely used in non-metallic minerals, chemicals, building materials, metallurgy, environmental protection, etc. Multiple areas.
The high-pressure grinding mill production line is a project specially designed for efficient grinding operations. It is widely used in metallurgy, building materials, the chemical industry, highways, water conservancy hydropower, and other industries. It is a suspended roller mill that uses springs to increase pressure. It can achieve efficient grinding processing of various non-metallic raw materials. It has high efficiency, stability, and environmental protection characteristics.
The production line of the vertical roller mill is a cost-effective and energy-efficient solution for processing powder, which is widely used in many industries, such as metallurgy, building materials, industrial solid waste treatment, thermal power plants, cement plants, and environmental protection fields. The primary purpose of this project is to finely grind raw materials through a vertical roller mill to meet the requirements of different industries for particle size, purity, and output of powder products.
The gypsum grinding production line is an efficient, stable, and environmentally friendly production solution, which is widely used in construction, decoration, the chemical industry, and other fields. In addition, the grinding process is particularly critical, which directly affects the quality and particle size of the final product. With the continuous development of science and technology, the technical level and production efficiency of gypsum grinding production lines will be further improved, providing strong support for the development of the gypsum processing industry.
Green and Intelligent Mining Machinery
Manufacturing and Export Base
Based on high quality and perfect after-sales service, our products have been
exported to more than 120 countries and regions.
Copyright © 2023 Zhengzhou Mascot Environmental Technology Co., Ltd Record number: Yu ICP No. 13021523-4
WhatsApp