Twin Shaft Concrete Mixers

Achieving consistent homogeneity and excellent workability in the shortest possible mixing time is essential for modern concrete production. SICOMA provides high-performance mixing solutions designed for fast, uniform and reliable mixing.

With a comprehensive range of Twin-Shaft, Planetary, Single-Shaft and Pan Mixers, SICOMA meets the requirements of ready-mixed concrete, precast concrete, RCC, dry mortar and other demanding applications. Robust construction, optimized mixing performance and durable wear-resistant components ensure stable operation, long service life and consistent concrete quality.

Highlights

1. Superior Mixing Performance

The two counter-rotating shafts generate a powerful three-dimensional mixing action. The optimized arrangement and orientation of the mixing arms and paddles promote continuous rolling and circulation of aggregates, cement, water, and admixtures.
Result: fast mixing cycles, excellent homogeneity, and consistent concrete quality.

2. Heavy-Duty Ni-Hard Wear Protection

The mixing tank is protected by Ni-Hard cast iron wear liners, while the mixing blades are also manufactured from highly wear-resistant Ni-Hard material. This provides excellent resistance to abrasion from aggregates and significantly extends the service life of critical wear parts.

3. WHY USING NI-HARD?

The rigidity of NI-HARD material is identical through every section and layer, therefore, abrasion rates do not vary, as the plates begin to wear and subject to the rigidity of the aggregates used, the life expectancy of the Ni-Hard mixer wear parts, can reach a production capacity of up to 1,000,000 m³, depending on the mixer type and its volume.

4. UNIQUE PADDLE STRUCTURE

Twin-Shaft Mixer paddle structure has been specifically designed for strength and abrasion resistance. Each Pallet group has been reinforced against failure, and the structure, improves life expectancy. The design and quality of our mixer paddle structures, are market leading and the quality is often compared to many German products on the market today. The life expectancy of the mixing group, is equal to the abrasion proof liners and cast thickness of the mixer structure, therefore, the life expectancy of DKTEC equipment is more than often, in excess of many of our competitors. DKTEC Twin-Shaft mixers are capable of blending materials with particle sizes of up to 150mm in diameter. The paddle angle of 45° also means it can withstand higher loads, therefore it is capable of mixing zero slump , RCC mixes and all types of ready mixed mixtures.

5. UNIQUE BEARING AND SEAL DESIGN

The specially designed Bearing and Twin-Shaft Mixer seal group, of a number of metallic and polyurethane components. The bearings are place on the outside of the mixer in the specially designed housing, which prevents the ingress of cementitious grouts, if a seal failure should occur, therefore, with the correct routine maintenance, the life expectancy of each bearing can exceed 500,000 m³ of production. The Labyrinth seal structure, encapsulates the grease, provided by the automated greasing system, to create a seal, preventing the grout from penetrating the bearing.

6. PERFECT LUBRICATION SYSTEM

An automatic lubrication system supplies the required grease to the shaft seals at controlled intervals. This reduces manual maintenance requirements and helps maintain stable sealing performance during long-term operation.

7. IN RCC GRAIN SIZE MATTERS

Twin-Shaft Mixers normally work with particle size of approximately 50mm. However, in RCC applications twin-shaft mixers can mix aggregates up to 150mm in diameter.

8. MIXER TOP COVER

Dustproof mixer cover is equipped with wide maintenance hatch with safety switches, supported by industrial gas shocks for secure and easy access for maintenance. Several types for loading of materials and other controls are available.

9. WATER DISTRIBUTION SYSTEM

We offer water distribution pipe with distribution nozzles working by gravity by default. Several discharge types and sprayers, gravity or pressurized are available upon request according to the application.

10. MIXER DISCHARGE GATE

A hydraulic rotary discharge gate with position sensors is supplied as standard. Several options for twin discharge legs are available upon request.

11. HYDRAULIC DRIVE FOR DISCHARGE GATE

Discharge gate is driven by a hydraulic power pack, which ensures the full open and close. Manual operation with the help of a manual pump in case of an emergency is possible.

12. MAINTENANCE PLATFORM

All DKTEC Twin-Shaft mixers are supplied with a maintenance platform as a standard.

13. DISCHARGE CHUTE

A discharge chute can be supplied upon request with or without rubber chute.

14. MIXER MOISTURE PROBE

A microwave moisture sensor reading at 25 times per second and combined with on-board functionality such as signal processing, smoothing and averaging accurately measures the moisture content of material as it passes over the ceramic faceplate.

15. MIXER TEMPERATURE SENSOR

No matter what is the season, cold or hot, the purpose of this sensor is to ensure that the temperature of the mix is within acceptable levels.

16. SAFETY POWER TAKE-OFF KIT

For the safety of working environment we offer a wide range of safety power take-off kits for mixers and other parts

17. AUTOMATIC HIGH-PRESSURE WASHOUT SYSTEM

An optional mixer washout system with a 100-bar water pump and two rotating heads (10 nozzles) can be supplied upon request.

18. PRESSURIZED WATER DISTRIBUTION

19. MIXER TOP FILTER

A separate filter or dust bag for mixer can be supplied upon request.

20. SOFT STARTERS

Soft starters for smooth start-up of the mixers are available upon request

21. TWIN-DISCHARGE

Two-way discharge can be supplied as an option to maximize the capacity of the plant and to ease the operation

22. MORE POWER

More powerful motors and gearboxes can be supplied according to the application, such as heavyweight cwith lead or iron ore, low slump and others.

23. WIDE AFTER-SALES NETWORK

24. HIGH PRECISION MACHINERY

The use of technologically advanced CNC boring equipment ensures all DKTEC mixer structures are perfectly aligned to ensure the parallelism of the mixing shafts.

25. SPECIAL APPLICATIONS

The design of the mixers can be changed or improved according to special applications like RCC heavyweight , low slump road and others.

26. SWIVEL DISCHARGE CHUTE

We can offer a swivel discharge chute to protect the mixer trucks from leak on drive through layouts.

27. A RELIABLE PARTNER

Many of the World’s leading professional contractors, construction companies and cement manufacturers, prefer DKTEC. DKTEC has become a leading supplier for a number of major projects around the world and has proven to be an industry leader in the Turnkey supply and manufacture of high quality and reliable production equipment.

28. APPROVED QUALITY

All DKTEC products and manufacturing processes are compliant with the quality requirements of ISO 9001, CE norms, EAC standards and other specific quality and safety based directives.

29. 3D SOLID MODELLING AND TESTING

All DKTEC products are designed and tested in parametric 3-dimensional space prior to manufacture, to eliminate any potential faults.

30. PERFECT WATER DISTRIBUTION

Water distribution pipes allow perfect water distribution within the mixer to ensure fast and homogeneous mixing in less than 30 seconds.

31. PROJECT SUPPORT

Not sure which equipment is right for your application? Let us provide a complete solution. Our experienced project team can develop customized solutions tailored to your specific requirements, ensuring the right equipment and configuration for every application.

32. DRIVETRAIN TO LAST

High quality motors and gear-boxes from the best manufacturers with perfectly chosen RPM’s, to lower energy consumption and provide a long lasting service life of our mixers.

33. WIDE RANGE

With a wide range of different types of mixers and capacities, we have a solution for every application.