CPLN-0.75 Planetary Concrete Mixer

The CPLN-0.75 represents CONSTMACH's commitment to high-speed planetary mixing technology, delivering exceptional performance in concrete production. This 750-liter model stands out through its sophisticated countercurrent design, where mixing stars rotate on their own axes while simultaneously orbiting a central point. This dual-motion system ensures every square centimeter of the mixer floor receives thorough treatment within just a few revolutions, creating concrete batches that meet the highest standards in less than 30 seconds after water addition.

What makes this mixer particularly effective is its three-armed star configuration. Unlike dual-arm alternatives, the three-arm design provides superior mixing action and extended operational life. The arms themselves handle the actual mixing work, which means the unit performs consistently whether processing full batches or smaller partial loads. Paddles come into play only during discharge, simplifying the mechanical requirements and reducing wear points. The generous 1,000-liter charging volume translates to 875 liters of fresh concrete or 750 liters when compacted, giving operators up to 30% more pan capacity than comparable units rated for similar output levels.

The mixer's mechanical heart consists of a large reduction gearbox operating in an oil bath, engineered for cool, continuous running. This stands in stark contrast to compact commercial gear units crammed into tight, poorly ventilated spaces that struggle with heat buildup and intermittent duty limitations. CONSTMACH backs this confidence with a substantial 5-year or 10,000-hour guarantee on the gearbox, reflecting the robust engineering behind the design. The 30 kW motor pairs with gearing rated for occasional full-load startups without requiring hydraulic coupling complications, though this capability serves best as a backup rather than standard practice.

The intense mixing action characteristic of planetary designs proves especially valuable for dry-cast concrete production. Zero-slump mixes, which pose challenges for turbine and twin-shaft designs, break up quickly under the countercurrent forces generated by the rotating arms. This translates directly to stronger concrete and improved consistency. Production facilities typically see 10 to 15% cement savings compared to traditional pan or drum mixers, making the unit economically attractive beyond its output capabilities. Higher throughput becomes achievable without expanding plant size, as the rapid 30-second mixing cycles allow more batches per hour.

Wear resistance receives careful attention throughout the design. Floor tiles made from 15mm Ni-Hard cast iron, along with matching mixing blades, provide extended service life compared to standard linings. The small, identical floor tiles keep replacement costs manageable and allow individual tile changes rather than complete liner overhauls. For operations facing extreme wear conditions, chromium carbide cladded plates and paddles are available, while facilities working with aggressive aggregates can opt for rubber blades and paddles to protect both the mixer and the material quality.

The discharge system employs rubber-sealed doors that operate smoothly through hydraulic mechanisms, providing powerful, controllable opening and closing action while eliminating water leakage. Operators can specify up to four discharge doors depending on plant configuration needs. Complete cleanout occurs without special mechanisms, aided by the large half-moon cover design that offers safe, quick access for maintenance. A high-security locking cover latch disables startup capability, ensuring operator safety even if separate lockout switches are accidentally overlooked.

Electrical components meet UL requirements, with CE-certified motors and UL certification available upon request. The bottom features 10mm Hardox 450 wearing plates, while side bodies incorporate 8mm St-52 plates. Mixing arms receive 25mm Ni-Hard wearing plates for maximum durability in high-stress zones. Both hydraulic discharge doors and maintenance door safety switches come standard, supporting safe, efficient operations.

The CPLN-0.75 delivers excellent value within its class, combining proven planetary technology with thoughtful engineering details refined through years of field experience. Its ability to handle various concrete types while maintaining consistent quality and reducing cement consumption makes it a practical choice for modern concrete production facilities seeking reliable, cost-effective mixing solutions.