CPLN-0.5 Planetary Concrete Mixer

CONSTMACH's high-speed planetary concrete mixer represents decades of engineering refinement in concrete mixing technology. What started as a robust foundational design has evolved into a precision-engineered solution that delivers exceptional performance in the most demanding production environments. The planetary mixing principle, where mixing stars rotate on their own axis while simultaneously orbiting around a central point, creates a mixing pattern that covers every square centimeter of the pan floor multiple times per cycle. This sophisticated motion generates an intensive mixing action that processes even zero-slump concrete in 30 seconds or less after water addition, dramatically reducing cycle times compared to conventional pan or drum mixers.

The CPLN-0.5 model features a 750-liter charging capacity, producing 500 liters of compacted concrete per batch. This generous pan volume exceeds many competitors' designs rated for similar output, ensuring the mixer handles full loads without compromising mixing quality. The 15.5 kW motor drives a large reduction gearbox housed in an oil bath system that operates cool even under continuous production schedules. Unlike compact commercial gear units crammed into poorly ventilated spaces, this robust drivetrain configuration handles sustained operation without overheating. CONSTMACH backs this confidence with a remarkable 5-year or 10,000-hour warranty on the gearbox assembly.

The three-armed mixing stars deliver superior performance compared to two-arm configurations. Each arm carries specially designed mixing blades and discharge paddles that work together to break up dry materials quickly and distribute water evenly throughout the batch. This countercurrent mixing action produces concrete with consistently higher compressive strength while reducing cement consumption by 10 to 15 percent compared to traditional mixing methods. The arms perform equally well on full batches and small partial loads because the mixing action comes from the rotating stars themselves, not from paddle scraping as in pan mixers.

Wear protection throughout the mixer reflects practical production experience. The mixing arms feature 25mm Ni-Hard cast iron wearing plates that withstand abrasive aggregates for extended service life. The pan floor uses identical small half-moon tiles made from 15mm Ni-Hard material, allowing individual replacement instead of costly full liner changes. Side walls incorporate 8mm ST-52 steel plates, while the bottom receives 10mm Hardox 450 protection. For extreme wear applications, chromium carbide cladded components are available, and rubber blades can be fitted when processing particularly aggressive aggregates.

The hydraulic discharge door system employs rubber seals that eliminate water leakage while providing smooth, powerful operation. Operators can specify up to four discharge positions for maximum flexibility in plant layout. The hydraulic mechanism delivers controllable opening and closing action that prevents concrete spillage and allows precise discharge timing. Complete cleanout occurs through the discharge doors without requiring additional mechanisms or manual intervention.

Safety features include a high-security cover locking system that physically prevents mixer startup when open, adding protection even if operators overlook separate lockout switches. The wide segmented cover design provides safe, quick access for inspection and cleaning. All electrical components meet UL requirements, with CE-certified motors as standard and UL certification available on request. Motors and gears can handle occasional startup under full load without hydraulic coupling complications, though this practice is not recommended for regular operation.

The CPLN-0.5 planetary mixer excels in dry-cast concrete production where turbine and twin-shaft designs struggle. The intense mixing action breaks up zero-slump mixes rapidly, making it ideal for manufacturing concrete blocks, pavers, pipes, and precast elements. The combination of faster cycle times, reduced cement consumption, and superior concrete quality translates directly into higher profitability. Production facilities achieve greater throughput from the same footprint while maintaining the consistency that quality control demands. This planetary design represents the most cost-effective solution in its class for serious concrete products manufacturers.