The Trough Type Mixer

We are a direct manufacturer specializing in the R&D, production, and export of complete equipment systems for powder drying and mixing. With over a decade of experience in the industry, we export our machinery to more than 50 countries across Europe, the Americas, Southeast Asia, the Middle East, and Latin America. The trough-type mixer is one of our flagship export models, designed for mixing dry powders, wet powders, and viscous pastes across various sectors-including pharmaceuticals, food processing, fine chemicals, feed additives, personal care products, and construction materials. The equipment fully complies with international standards such as GMP, CE, ISO9001, and FDA. Below, we provide a comprehensive overview of the trough-type mixer:

The standard machine is integrally welded with high-quality 304 stainless steel, and can be upgraded to 316L medical/food-grade stainless steel on demand. The inner wall of the trough is mirror-polished without welding dead corners, ensuring no material residue and easy cleaning. Custom jacket structure is available to realize integrated stirring, heating drying and cooling functions. Meanwhile, optional configurations including vacuum automatic feeding, liquid spray adding, hydraulic automatic tilting discharging and full explosion-proof motors can be equipped according to customer demands.

As an original export manufacturer with independent production workshops, every trough type mixer undergoes strict no-load and full-load continuous testing and mixing uniformity inspection before delivery, with complete supporting export certification documents. Global purchasers and foreign trade distributors are welcome to visit our factory for on-site inspection and send raw materials for free mixing tests. We can provide one-stop customized solutions for complete powder mixing, drying and conveying production lines according to actual working conditions.

 

 

The main body of the trough type mixer is a horizontal U-shaped trough, equipped with a double-layer ribbon stirring blade inside. The driving motor drives the blade to rotate continuously at a low speed through a reducer. Materials in the trough are subjected to three-way forces: pushing by the blade, vertical flipping and material convection kneading. The inner layer of materials is pushed to both ends of the trough by the ribbon, while the outer layer of materials flows back and gathers along the inner wall of the U-shaped trough, forming continuous circulating convection to achieve rapid and uniform mixing.

With an ultra-small gap between the blade and the trough bottom, there is no stirring blind zone, which can quickly break caked materials and fully integrate dry and wet materials, especially suitable for high-viscosity paste and agglomerated wet powder processing. The machine can be equipped with sealed cover and dust removal devices for dust-free closed operation. By connecting heat-conducting oil or cooling water through the customized jacket, the equipment can realize synchronous heating drying or low-temperature cooling during stirring, achieving multi-functional integration and reducing workshop equipment investment costs.

 

 

Model	150	200	300	500	750	1000	1500	2000	2500	3000
Full volume(m3)	0.15	02	03	0.5	0.75	10	1.5	2	2.5	3
Feeding amount (kg/batch)	30	40	60	120	150	270	400	550	630	7504
Stirring speed(rpm)	24	24	24	20	19	19	14	12	12	10
Hybrid motor power (kw)	3	4	4	5.5	7.5	7.5	11	11	11	18.5
Discharge motor power (kw)	0.55	0.55	1.5	2.2	2.2	3	3	4	4	5.5
Dimensions (mm)	360×540 ×1100	1460×600 ×1200	1900×750 ×1300	2150×860 ×1560	2300×1260 ×800	2500×1300 ×860	2600×1400 ×940	3000×1500 ×1160	3500×1620 ×1250	3800×1780 ×1500

 

 

The whole machine consists of five core modules, all core parts are independently processed and produced by our factory, with corrosion resistance and high sanitary grade:

3.1 U-shaped Mixing Trough

Adopts 304 stainless steel seamless welded U-shaped trough, upgradable to 316L food/medical stainless steel. The inner wall is mirror-polished with Ra≤0.4μm, no dead corners and no residue. The outer wall can be customized with a sandwich jacket for heating and cooling medium circulation. Sealed end covers are installed at both ends of the trough to prevent material leakage and protect transmission parts from pollution.

3.2 Ribbon Stirring Transmission System

Built-in double-layer ribbon stirring blade fits closely to the trough bottom without stirring blind zones. Both ends of the transmission shaft are equipped with anti-corrosion sealing shaft sleeves to isolate materials from bearings. Matched with high-power hard-tooth surface reducer, it provides sufficient output torque, ensuring stable operation without jamming or overload even for high-viscosity paste stirring.

3.3 Hydraulic Tilting Discharging Mechanism (Standard Configuration)

Equipped with a hydraulic tilting cylinder at the bottom of the trough. After stirring is completed, the trough can be tilted with one click for automatic discharging, eliminating manual shoveling and greatly saving labor costs. A tilting limit protection device is installed to prevent safety accidents caused by excessive tilting of the trough body.

3.4 Thickened Stainless Steel Frame Base

The whole machine adopts a thickened stainless steel square tube welded frame with stable bearing and balanced placement. The motor, reducer and hydraulic pump station are integrated inside the frame, with waterproof and dustproof sheet metal shell outside. Explosion-proof isolated motors can be configured for flammable and explosive powder processing to meet chemical hazardous material production safety standards.

3.5 Intelligent Electric Control System

Independent sealed electric control box, equipped with variable frequency stepless speed regulation, timing stirring and one-click tilting discharging functions as standard. High-end models are equipped with PLC touch screens to store multiple sets of stirring process parameters. Electrical components adopt international first-line brands, the whole machine complies with EU CE safety standards, and can be customized to adapt to overseas industrial voltages of various countries.

 

 

5.1 Pre-start Inspection

Place the equipment on flat and solid ground and level the supporting feet of the frame. Confirm sufficient lubricating oil in the reducer and intact sealing shaft sleeves of the transmission shaft without material leakage. Check sufficient oil in the hydraulic tilting cylinder and normal operation of the discharging limit protection device. Remove all hard metal objects and sundries from the trough. Inspect the electric circuit for damage. For explosion-proof models, confirm the integrity of explosion-proof sealing joints. Never start the machine with faults.

5.2 Feeding & Production Specifications

Strictly control the material filling volume within 40%~70% of the total trough volume. Excessive filling will cause motor overload and uneven stirring, while insufficient filling will fail to form circulating convection and reduce mixing effect. Put dry powder, wet powder and paste in layers and batches, and add caked materials in small quantities for multiple times. For processing flammable and explosive powder and organic solvent paste, only customized full explosion-proof models are allowed; ordinary machines are prohibited from processing hazardous materials. Close the trough sealing cover after feeding to reduce dust volatilization and diffusion.

5.3 In-operation Specifications

Run the machine at no-load low speed for 3 minutes after startup, check for abnormal noise and wall scraping of the blade, and feed materials only after confirming normal operation. It is forbidden to put hands or tools into the trough during stirring operation, and prohibit starting the tilting discharging function while the machine is running. In case of abnormal noise, motor overheating, severe trough shaking and other faults during operation, cut off the power and stop the machine for inspection immediately, do not continue to operate with faults. Do not modify the speed and timing parameter limits of the electric control system without authorization.

5.4 Post-shutdown Cleaning & Daily Maintenance

Start the tilting discharging mechanism only after the stirring program is completed and the blade stops completely. Clean the trough and stirring blade in time after discharging. For pharmaceutical and food industries, use food-grade neutral detergent, rinse with clean water and dry thoroughly. Add special lubricating grease to transmission bearings and hydraulic tilting cylinders every 15 days. Do not flush the electric control box directly with water, only wipe dust with wet and dry cloths. Regularly clean scale and oil stains in the jacket pipeline to ensure heat exchange and drying efficiency.

5.5 Long-term Shutdown & Storage Specifications

Completely empty all materials in the trough, fully clean and dry the trough and blades, and keep the trough cover slightly open for ventilation. Cover the whole machine with dust-proof and waterproof protective cover, and supplement lubricating grease for transmission shafts and hydraulic cylinders. Run the machine at no-load low speed for 10 minutes every month to prevent rust and jamming of blades and transmission parts. Store the equipment in a dry and ventilated environment, away from humid and corrosive gas erosion.

 

 

We are a professional original manufacturer and exporter of drying and mixing equipment. Our trough type mixers feature reliable quality, wide applicability and complete export certifications, supporting non-standard customization and full production line matching to meet various powder and paste mixing demands across industries. With stable quality, on-time delivery and comprehensive after-sales service, we serve global purchasers and manufacturers. Feel free to leave an inquiry for model selection, customized solutions, material testing and quotation. We will provide your exclusive production solution promptly!

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