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twin shaft concrete mixer

twin shaft concrete mixer

For modern mixtures, achieving the desired homogeneity and workability in the shortest period possible is often the most critical production phase—so reliable, high-quality mixing equipment is essential. At the heart of every SDCAD Plant sits a Twin Shaft Concrete Mixer, a combination you can always depend on. SDCAD offers an extensive range of high-performance mixers, including Single-Shaft, Twin Shaft, Planetary and Pan types, all in various capacities—ensuring we meet every mixing requirement. SDCAD Twin Shaft Concrete Mixers have proven reliable and built to the highest quality, making SDCAD equipment the choice of countless professionals in over 70 countries worldwide.Twin Shaft Concrete Mixer has many advantages:

  • Reduces unexpected downtime and ensures continuous operation: Centralized automatic oil supply protects labyrinth seals; each seal has a fault early-warning sensor
  • Adapts to multiple working conditions and improves flexibility: Twin-shaft mixer handles 50mm aggregates normally, up to 150mm in roller compacted concrete
  • Enables safe, convenient maintenance and meets diverse needs: Dust-proof cover with wide maintenance opening (safety switch) + gas shock absorbers; supports multiple loading/control devices
  • Meets different water supply needs and ensures precision: Standard gravity-nozzle pipe; customizable gravity/pressure discharge/nozzles
  • Ensures precise, flexible discharging: Standard hydraulic rotating gate (position sensor); optional double discharge legs
  • Guarantees continuous, reliable operation: Hydraulic-driven gate for full opening/closing; manual pump backup in emergencies
  • Reduces unexpected downtime and improves stability: Centralized automatic lubrication for labyrinth seals; sensors warn of faults to cut downtime
  • Expands application scope and enhances adaptability: Twin-shaft mixer fits 50mm aggregates normally, handles up to 150mm in roller compacted concrete
  • Enables efficient, safe maintenance and meets loading needs: Dust-proof cover + wide maintenance opening (safety switch) + gas shock absorbers; supports multiple loading/control devices
  • Adapts to water supply scenarios and ensures mixing quality: Standard gravity-nozzle pipe; customizable gravity/pressure discharge/nozzles
  • Ensures precise discharge control and flexible configuration: Standard hydraulic rotating gate (position sensor); optional double discharge legs
  • Guarantees reliable discharging and emergency response: Hydraulic-driven gate for thorough opening/closing; manual pump backup to keep operation going

Twin Shaft Concrete Mixer

Type of Twin Shaft Concrete Mixers

A twin shaft concrete mixer is a high-performance mixing machine designed for fast, uniform, and high-capacity concrete production. It features two horizontal shafts with intermeshing paddles rotating in opposite directions, providing intensive mixing and superior concrete homogeneity. Twin shaft mixers are widely used in ready-mix plants, precast factories, and large infrastructure projects.


Difference Between Types of Twin Shaft Concrete Mixers

Twin shaft mixers can be categorized by capacity, construction type, and application requirements:

  • By capacity: Models range from 0.5 m³ to 6 m³ per batch for small to ultra-large operations.

  • By shaft construction: High-strength alloy steel paddles and wear-resistant liners suitable for heavy aggregates and high-strength concrete.

  • By drive type: Electric, diesel, or hydraulic systems for stationary or mobile plants.

  • By application: Standard models for normal concrete; reinforced versions for high-performance, fiber-reinforced, or self-compacting concrete.

Compared with single shaft mixers, twin shaft mixers offer faster mixing cycles, better homogeneity, and higher output, making them ideal for large-scale concrete production.


Applications of Twin Shaft Concrete Mixers

Twin shaft mixers are widely used in:

  • Large ready-mix concrete plants producing high-volume concrete efficiently.

  • Precast concrete factories requiring uniform, high-quality concrete for beams, slabs, and blocks.

  • Infrastructure projects such as dams, highways, bridges, airports, and tunnels.

  • Special concrete applications including self-compacting, fiber-reinforced, or high-strength concrete.

These mixers ensure rapid mixing, uniform texture, and consistent concrete strength, critical for demanding construction projects.


Main Technical Specifications and Performance Indicators

Key specifications include:

  • Batch capacity: 0.5–6 m³ per cycle

  • Mixing cycle time: 30–90 seconds per batch depending on capacity

  • Material: High-strength alloy steel for shafts and paddles with wear-resistant liners

  • Motor power: 30–110 kW depending on mixer size

  • Shaft rotation speed: 20–50 rpm adjustable

  • Discharge method: Gravity or hydraulic chute

  • Feed method: Hopper, screw conveyor, or belt feeder

Key performance indicators:

  • Mixing uniformity: ±2% variation ensures consistent concrete quality

  • High efficiency: Short cycle times allow 50–100 batches per hour in large plants

  • Durable design: Reinforced shafts and liners withstand heavy-duty operation

  • Maintenance convenience: Easy access to shafts, paddles, and discharge systems


Price Factors and Price Range

Price depends on:

  1. Batch capacity — larger mixers require stronger shafts and higher power motors.

  2. Material and wear-resistant components — premium steel and liners increase durability and cost.

  3. Drive system — electric, diesel, or hydraulic motors.

  4. Optional features — automated feeding, remote control, and integration with batching plant control systems.

Typical price range:

  • Small (0.5–1.5 m³): USD 20,000–35,000

  • Medium (2–4 m³): USD 35,000–60,000

  • Large (5–6 m³): USD 60,000–100,000


Export Advantages of SDCAD Twin Shaft Concrete Mixers

SDCAD twin shaft mixers are designed for high-volume international concrete production:

  • High-performance mixing: Dual shafts and intermeshing paddles ensure uniform concrete in short cycles.

  • Durable construction: Reinforced alloy steel and wear-resistant liners provide long service life.

  • Flexible design: Batch capacity, drive type, and feeding systems can be customized for global clients.

  • Energy-efficient operation: Optimized motor and shaft design reduce energy consumption.

  • Global compliance: ISO and CE-certified for international export projects.

  • Turnkey integration: Compatible with SDCAD batching plants, conveyors, silos, and mixers for complete concrete solutions.

SDCAD twin shaft concrete mixers deliver high output, superior concrete quality, and long-term reliability, making them ideal for large-scale overseas projects and industrial applications.

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