Twin Shaft Concrete Mixers

Achieving the desired homogeneity and workability of modern mixtures, within the shortest period possible, is often the most critical phase of production, therefore, the need for reliable, high quality mixing equipment is essential. With each and every MEKA Plant, a MEKA Twinshaft Mixer is at its heart, which is a combination you can always rely on. MEKA offers an extensive range of high performance mixers – Single-Shaft, Twin-Shaft, Planetary or Pan with variety of different capacities, ensuring we comply with every mixing requirement. MEKA Twin-Shaft mixers have proven to be reliable and built to the highest quality, resulting in MEKA equipment being the choice of many professionals, in over 70 countries around the world.

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Twin Shaft Concrete Mixers Advantages

HEAVY AND ROBUST

MEKA Twin-Shaft mixers offer long life, as they are 5-10% heavier than most of their equivalents on the market today, due to their robust steel structure and thick interior abrasion proof linings.

NI-HARD IS THE KEY

We offer NI-HARD alloy cast wearing linings in our Single Shaft Mixers as standard. This particular alloy is well known for its abrasion resistance and is used in a variety of different applications, such as mixing, coal and other mineral grinding, slurry pump manufacturing, pumping, piston manufacturing, gears manufacturing and many others. Despite being more expensive at the outset, Ni-hard outperforms other alloys in terms of abrasion resistance and overall operating costs, as NI-HARD is proven to have up to 3 times the wear life of standard alloy materials.

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.

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 MEKA equipment is more than often, in excess of many of our competitors. MEKA 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.

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.

PERFECT LUBRICATION SYSTEM

The Centralized automatic lubrication system, supplies the mixer labyrinth seals, with sensors on each seal, to ensure, you are informed of a failure, before it is too late.

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.

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.

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.

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.

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.

MAINTENANCE PLATFORM

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

Optional Items

DISCHARGE CHUTE

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

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.

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.

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

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.

PRESSURIZED WATER DISTRIBUTION

According to the application, we can offer a low-pressure water spray system for water discharge and special distribution nozzles.

MIXER TOP FILTER

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

SOFT STARTERS

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

TWIN-DISCHARGE

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

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.

WIDE AFTER-SALES NETWORK

We are always around to support our equipment with our regional offices, dealers and spare part warehouses worldwide.

HIGH PRECISION MACHINERY

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

SPECIAL APPLICATIONS

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

SWIVEL DISCHARGE CHUTE

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

Why MEKA Mixers?

A RELIABLE PARTNER

Many of the World’s leading professional contractors, construction companies and cement manufacturers, prefer MEKA. MEKA 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.

APPROVED QUALITY

All MEKA 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.

3D SOLID MODELLING AND TESTING

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

PERFECT WATER DISTRIBUTION

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

PROJECT SUPPORT

Not sure, if our equipment fits? Let us offer you a complete solution. Our project team will be happy to create unique solutions for different applications.

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.

WIDE RANGE

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

Twin Shaft Concrete Mixers Technical Specifications

metric imperial	MB-T 1,0	MB-T 2,0	MB-T 3,33	MB-T 5,0
Types	MB-T 1,0 m³ MB-T 1.3 yd³	MB-T 2,0 m³ MB-T 2.6 yd³	MB-T 3,33 m³ MB-T 4.3 yd³	MB-T 5,0 m³ MB-T 6.5 yd³
Loading Dry Capacity	1,5 m³ 1.95 yd³	3 m³ 3,9 yd³	5 m³ 6,5 yd³	7,5 m³ 9,75 yd³
Fresh Capacity	1,25 m³ 1,625 yd³	2,5 m³ 3,25 yd³	4,16 m³ 5,4 yd³	6,25 m³ 8,13 yd³
Compacted Output	1,0 m³ 1,3 yd³	2,0 m³ 2.6 yd³	3,33 m³ 4.3 yd³	5 m³ 6,5 yd³
Motor Power	2x18,5 kW 2x25 Hp	2x37 kW 2x50 Hp	2x55 kW 2x75 Hp	2x90 kW 2x120 Hp
Mixer Weight	4.460 kg 9,830 lbs	7.200 kg 15,875 lbs	10.280 kg 22,665 lbs	12.380 kg 27,855 lbs
Mixer Body	Welded, SAND BLASTED and Layer Painted (Prime+Color)
Paint	JOTUN (Norway) / KANSAI (Japan), Thickness 120-200 micron
Motor Safety	Adjustable Thermic Overload Protection Relay SIEMENS (Germany)
Gearbox/Transmission	Planetary type BONFIGLIOLI (Italy) / Elastic transmission with synchronization shaft
Mixing Shaft / Arms	Two robust shafts made from forged steel / Arms from cast steel, replaceable
Shaft Alignment	Ultra precision CNC robot machine with strict quality control
Shaft Cleaning Rings	Included by default between the arms
Main Body Wearing Plates	Ni Hard 4 (Hardness 600 Brinell) - 20 mm thickness, replaceable
Mixing Arm Wearing Plates	Ni Hard 4 (Hardness 600 Brinell) - 30 mm thickness, replaceable
Automatic Lubrication	BEKA-MAX (Germany) with sensors for each bearing, up to 280 Bar, 4 kg
Bearings / Seals	Long-life bearings with labyrinth type unique design steel and plastic seals
Discharge Gate	Hydraulic, rotary with manual pump for emergency discharge
Discharge Control	2 switches with wide range control in automation (time for opening, time for waiting)
Water Distribution	From nozzles over shafts, discharge by gravity
Emergency Stop Button	Lockable, according to CE regulations
Dust Suppression	By-Pass system connecting the Mixer, Cement Scales and Agg. Holding Hopper
Maintenance Cover	With safety switch, wide, dustproof, including inspection hatch with safety grid
Inspection Platform	Wide, non slippery grid, flippable
Wiring	Completely pre-wired to the IP55 Junction Box on main chassis
Discharge Chute	With replaceable wearing liners

Twin Shaft Concrete Mixers Gallery

Concrete Mixers Optional Features

Concrete mixers are essential equipment in the construction industry, enabling the rapid and efficient mixing of concrete. These mixers ensure a homogeneous blend of concrete, contributing to the production of high-quality and durable concrete on construction sites. They are commonly used in concrete production plants and construction sites for transporting and pouring concrete.

Concrete mixers are available in various capacities and can be adapted to meet different project needs, from large-scale construction projects to smaller applications. Typically, mixers have capacities ranging from 4 m³ to 10 m³, but some models may have smaller or larger capacities depending on specific requirements.

What is a Concrete Mixer and How Does It Work?

A concrete mixer is a piece of equipment used to create a homogeneous concrete mixture. Concrete mixers typically use a rotating drum or a mixing cylinder. This rotating system allows materials such as cement, sand, water, and aggregate to mix together and form concrete. The mixer’s rotational movement ensures a uniform mix and helps produce high-quality concrete.

What Are the Applications of Concrete Mixers?

Concrete mixers are widely used in the construction industry. They are essential in various projects, from residential buildings to infrastructure works, road construction projects, and commercial buildings. Concrete mixers are indispensable on construction sites, especially for concrete pouring processes. They are also frequently used in concrete production plants.

How Much Concrete Can Concrete Mixers Mix?

The capacity of concrete mixers typically ranges from 4 m³ to 10 m³. However, with custom designs, smaller or larger capacity mixers can also be produced. The mixer capacity is determined based on the scale of the construction project and the daily concrete requirement. Smaller capacity mixers are sufficient for small projects, while higher-capacity mixers are preferred for larger projects.

How to Maintain a Concrete Mixer?

Regular maintenance of concrete mixers is essential for ensuring their long lifespan and efficient operation. The drum and motor should be inspected and cleaned regularly. After each mixing process, any remaining concrete should be removed, and surfaces should be lubricated. Additionally, gears, tires, and other moving parts should be periodically checked and replaced or lubricated if necessary. Following the manufacturer’s maintenance guidelines helps keep the mixer operating efficiently.

Is It More Advantageous to Rent or Buy a Concrete Mixer?

The decision to rent or buy a concrete mixer depends on the size and duration of the project. For short-term projects, renting a concrete mixer may be more cost-effective. However, for long-term or large-scale projects, purchasing a mixer can be more economical. Buying ensures continuous availability and maintenance control, whereas renting is a better option if you need the mixer for a limited period and want to avoid maintenance responsibilities.

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Twin Shaft Concrete Mixers

MB-T 1,0

MB-T 2,0

MB-T 3,33

MB-T 5,0