When should I choose a planetary counter-current mixer instead of a twin shaft mixer?

Choose a vertical-shaft planetary counter-current mixer when the mix is dry, fibre-reinforced, pigmented or ultra-high performance: UHPC, GFRC, refractory castables, dry-cast paving blocks and precast elements requiring homogeneity below 5% coefficient of variation. A twin shaft mixer is the more economical choice for high-throughput ready-mix and wet concrete above 2 m³ per batch, where cycle times of 30-45 seconds matter more than micro-homogeneity.

How long does a CO-NELE mixing pan liner and blade set last?

With standard high-chrome wear parts, liners and mixing arms typically run 90,000-150,000 batches on normal concrete and 40,000-60,000 batches on abrasive mixes such as refractory castables or quartz-rich UHPC. All wear parts are bolt-on and replaceable in the field, and CO-NELE keeps interchangeable spares for every model produced since 2004.

Can CO-NELE run a trial with my own raw material before I place an order?

Yes. Our laboratory in Qingdao operates lab-scale intensive mixers and granulators from 5 to 75 litres. Send 10-20 kg of your powder or aggregate with the target particle size, moisture and capacity, and our process engineers return a test report with granule sphericity, bulk density, mixing time and the recommended production model.

What voltage, documentation and after-sales support do export buyers receive?

Machines are built to the buyer's local supply (220V/380V/415V/440V, 50 or 60 Hz), supplied with CE-compliant electrical design on request, foundation and wiring drawings, an English operation and maintenance manual, and a 12-month warranty on the drive unit. Installation guidance is delivered by video commissioning or by resident engineers; spare parts ship from stock in Qingdao.

China 6m3 Twin Shaft Concrete Mixer Machine Factory Heavy Duty 6 Cubic Meter Industrial Double Shaft Concrete Mixing Equipment Supplier

1. Product Overview

The CO-NELE 6m³ twin-shaft compulsory concrete mixer is a high-capacity core mixing equipment independently developed and manufactured by CO-NELE . Founded in 1993, CO-NELE is a professional high-tech enterprise integrating R&D, production and global sales of concrete machinery, with German core technology, over 140 national patents, ISO9001 and CE certifications, serving more than 100 countries worldwide.

Designed for 240-300m³/h high-output concrete batching plants, precast component production lines and large-scale infrastructure projects, this mixer adopts a forced twin-shaft mixing structure. It supports single discharge gate and dual independent discharge gates (two outlets). The dual-gate design allows simultaneous feeding for two transit mixers, eliminating truck waiting time and maximizing actual plant productivity during peak production. It is suitable for mixing ordinary concrete, dry-hard concrete, self-compacting concrete, fiber-reinforced concrete and UHPC.

2. Working Principle

The CO-NELE U-shaped mixing drum is equipped with two horizontal counter-rotating shafts. The mixing arms and high-chromium wear-resistant blades drive materials to produce continuous shearing, convection and kneading movement, eliminating dead mixing zones and ensuring uniform mixing quality without segregation.

Equipped with CO-NELE customized independent hydraulic control system, the two discharge gates can be operated separately or synchronously. Flexible discharge modes adapt to continuous high-intensity industrial production requirements.

3. Core Advantages

1. Premium CO-NELE Brand Quality

With 30+ years of manufacturing experience and German R&D technology, CO-NELE concrete mixers feature stable performance, rigorous craftsmanship and long service life, widely recognized by global engineering projects.

2. Large 6m³ Batch Output

Matches high-output HZS240, HZS270, HZS300 batching plants with theoretical hourly productivity of 240-300m³/h.

3. Optional Dual Independent Discharge Gates

Two sets of independent hydraulic drive systems support single-gate or dual-gate synchronous discharge. It can load two mixers at the same time, greatly improving production efficiency and reducing material segregation caused by concentrated discharging.

4. High Mixing Uniformity & Efficiency

Complete full homogeneous mixing within 45-60 seconds, ensuring stable batch-to-batch quality for various special concrete materials.

5. Heavy-Duty Wear-Resistant Structure

Adopts CO-NELE customized high-chromium alloy liners and blades. Multi-labyrinth shaft-end sealing and automatic centralized lubrication system effectively prevent slurry leakage and reduce maintenance costs.

6. Stable Heavy-Load Drive System

Dual motors and heavy-duty gearboxes provide sufficient torque for heavy-load mixing of large aggregates and high-strength concrete.

7. Convenient Maintenance & High Safety

Wide inspection door and safety limit switches on dual discharge gates ensure safe operation and quick replacement of wearing parts.

8. Intelligent Automatic Control

Original CO-NELE PLC control system supports formula storage, remote monitoring and exclusive dual-gate control logic, perfectly compatible with full-automatic batching plant systems.

4. Technical Specifications

Item	Specification
Brand & Model	CO-NELE 6m³ Twin Shaft Concrete Mixer
Discharge Capacity	6 m³ per batch
Feeding Volume	≥9.0 m³
Theoretical Output	240‑300 m³/h
Max. Aggregate Size	150 mm (cobblestone) / 120 mm (crushed stone)
Mixing Motor Power	2×110 KW
Mixing Shaft Speed	20‑24 r/min
Discharge Mode	Hydraulic drive; Standard single gate / Custom dual discharge gates (2 independent outlets)
Control System	CO-NELE independent hydraulic control, single / synchronous opening optional
Lubrication System	Automatic centralized grease lubrication
Wear Parts Material	CO-NELE customized high-chromium wear-resistant alloy
Control Mode	PLC automatic / manual dual mode with dual-gate control logic
Matching Plant Model	HZS240, HZS270, HZS300

5. Application Fields

Large CO-NELE ready-mix concrete batching plants (dual gates highly recommended for peak traffic)

Precast concrete component factories and assembly construction projects

UHPC, steel-fiber reinforced concrete and special mortar production

Highway, railway, dam, port and large-scale infrastructure engineering

Recycled aggregate concrete and environmental protection building material production

6. Optional Upgrades & Accessories

CO-NELE precision water & admixture automatic metering system

Low-temperature thermal insulation & heating device for cold regions

Reinforced heavy-duty wear-resistant spare parts package

CO-NELE cloud remote monitoring & intelligent operation system

Custom dual discharge gates system and non-standard discharge structure

Custom discharge size, angle and voltage configuration

7. FAQ

Q1: What is the hourly output of CO-NELE 6m³ twin-shaft mixer?

A: The theoretical productivity is 240-300m³/h. The optional dual discharge gates effectively reduce truck waiting time and improve actual working efficiency.

Q2: Can CO-NELE dual discharge gates load two mixers simultaneously?

A: Yes. Two independent hydraulic systems support separate or synchronous opening, realizing simultaneous feeding for two transit mixers.

Q3: Which batching plant matches this CO-NELE mixer?

A: Perfectly compatible with HZS240, HZS270, HZS300 full-automatic concrete batching plants.

Q4: Can it mix UHPC and fiber concrete?

A: Yes. With upgraded CO-NELE heavy-duty wear-resistant components, it stably mixes UHPC, steel-fiber concrete and other high-difficulty materials.

Q5: Are dual discharge gates standard or optional?

A: Single gate is standard. Dual discharge gates are CO-NELE customized upgrade with complete hydraulic pipelines and exclusive PLC control program.

Q6: What about warranty and delivery time?

A: 12-month warranty for main unit (excluding wear parts). Standard delivery: 30-45 working days. CO-NELE provides global overseas installation, commissioning and technical training services.

8. Call To Action

Contact us for the latest quotation, CAD drawings, plant layout and project cases of CO-NELE 6m³ twin-shaft concrete mixer with dual discharge gates. Our professional engineering team will provide you with customized solutions.