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 Double spiral shaft concrete mixer Factory, Machine

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China Double spiral shaft concrete mixer Factory, Machine

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Product Description

Twin shaft concrete mixer CDS

Stirring blade spiral belt arrangement, the efficiency is increased by 15%, energy saving is 15%, material mixing and homogeneity is super high
Adopt large pitch design principle to reduce running resistance, reduce accumulated material and low axle-holding rate
Large model side scraper covers 100%, no accumulation
Stirring blade type is small, easy to install, high versatility
Optional Italian original reducer, German original automatic lubrication pump, high pressure cleaning device, temperature and humidity test system

Twin shaft concrete mixer CDS it is a complete mixing system. The materials (coarse aggregate, fine aggregate and powder), water and additives are added from the top of the mixer. The counter-rotating agitation tool ensures the homogeneity and efficiency of the agitation. The mixing arm is streamlined to force the material to move horizontally and vertically in the mixing drum. After mixing, the material is discharged from the mixing drum through the discharge door.

Item	Model
Item	CDS2000	CDS2500	CDS3000	CDS3500	CDS4000	CDS4500	CDS5000	CDS6000
Filling capacity（L）	3000	3750	4500	5250	6000	6750	7500	9000
Output capacity（L）	2000	2500	3000	3500	4000	4500	5000	6000
Power （kw）	2*37	2*45	2*55	2*65	2*75	2*75	2*90	2*110
Paddles number	2*7	2*8	2*9	2*9	2*10	2*10	2*10	2*11
Weight （kg）	8400	9000	9500	9500	13000	14500	16500	19000

Frequently Asked Questions (FAQ)

What efficiency improvements does the CDS twin shaft mixer offer?

The stirring blade spiral belt arrangement increases mixing efficiency by 15% and reduces energy consumption by 15%, while delivering exceptional material homogeneity.

How does the CDS mixer prevent material accumulation and axle-holding?

It adopts a large pitch design principle to minimize running resistance and material buildup. Additionally, the large model side scraper provides 100% coverage to avoid accumulation.

What optional equipment can be configured with the mixer?

Optional configurations include an Italian original reducer, a German original automatic lubrication pump, a high-pressure cleaning device, and an advanced temperature and humidity testing system.

How are raw materials mixed inside the CDS mixing drum?

Materials, water, and additives enter from the top. Counter-rotating agitation tools and streamlined mixing arms force movement horizontally and vertically to guarantee uniform mixing before discharging.

What output capacity range does the CDS mixer series cover?

The CDS series offers output capacities starting from 2000L (CDS2000) up to 6000L (CDS6000) per batch to meet different production requirements.