Stainless Steel Octagonal Blender

Product Overview

The Stainless Steel Octagonal Blender manufactured by Microtech Engineering represents the gold standard in pharmaceutical powder and granule blending technology, designed to achieve homogeneous mixing with minimal segregation and maximum efficiency. The unique octagonal shell geometry creates a tumbling action that generates both radial and axial material movement, ensuring thorough blending without the need for internal baffles or agitators that could create dead zones or cause product degradation. Our octagonal blenders are fabricated from high-grade stainless steel with SS 316L for all product contact surfaces and SS 304 for external housings and structural components. Interior surfaces are mirror-polished to Ra ≤ 0.4 µm, preventing product adherence and facilitating complete discharge and easy cleaning, critical for GMP compliance in pharmaceutical manufacturing. The blender operates on a horizontal axis rotation principle driven by variable frequency drives (VFD) allowing precise speed control from 5 to 20 RPM, optimized for different product densities, particle sizes, and blending requirements. The loading door features a butterfly clamp closure with FDA-approved silicon or neoprene gaskets ensuring dust-tight sealing during operation, preventing product loss and operator exposure to potent compounds. Discharge is accomplished through a butterfly valve or pneumatic PIG valve fitted at the shell center, enabling complete product recovery with minimal residue. For cohesive or free-flowing powders requiring intensification, the blender can be fitted with internal baffles or intensifier bars to promote particle breakup and improve blend uniformity. The octagonal blender is available in a wide range of capacities from 30 liters for laboratory and pilot-scale applications to 3,000 liters for full production operations, with working volumes typically 40-60% of total geometric capacity for optimal blending performance. The entire assembly is mounted on a heavy-duty MS frame with anti-vibration mounts, ensuring stable operation and long mechanical life. For dust-free loading operations, the blender can be integrated with IPC bin charging systems where mobile bins are directly connected to the blender inlet, eliminating manual handling and reducing contamination risks. Automation options include touch-screen HMI panels for recipe management, automatic cycle timers, interlock safety systems, and integration with plant SCADA for production monitoring and batch record documentation. All blenders are supplied with comprehensive documentation including material certificates, FAT protocols, electrical schematics, operating manuals, and IQ/OQ support for validation activities.

Key Features & Specifications

• Material: SS 316L (inner) / SS 304 (outer)
• Capacity: 30L to 3,000L
• Octagonal shape for superior blending efficiency
• Variable speed drive with inverter
• Neoprene / silicon gasket door with butterfly clamp
• Charge / discharge valve (butterfly / PIG valve)
• Baffles available for cohesive powders
• Dust-free loading with IPC bin option
• Mirror polished interior (Ra ≤ 0.4 µm)

Applications