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Product Overview

This laboratory rotary tablet press is a precision-engineered instrument designed for small-scale tablet production and formulation development. By transforming granular feedstocks into uniform tablets, it serves as a critical link between benchtop experimentation and pilot-scale manufacturing. The system is built around a robust, single-layer turret that accommodates multiple punch-and-die stations, enabling continuous, automatic rotation and compaction without operator intervention beyond monitoring.

The machine is ideally suited for pharmaceutical R&D, where it assists in drug formulation studies, stability testing, and pre-clinical batch production. Beyond pharma, it finds use in the chemical, food, and electronics sectors for developing compacted products such as catalysts, nutraceutical tablets, and ceramic green bodies. Its GMP-compliant stainless steel construction and transparent guarding make it perfect for environments where cleanliness and process visibility are paramount.

Inside, granules flow from the hopper into a guided feed shoe that sweeps each die cavity as the turret rotates. An adjustable cam precisely controls the fill volume, while upper and lower punches—actuated by hardened steel cam tracks—converge under pressure rollers to compress the material. After ejection, the finished tablet exits via a discharge chute. The entire compaction sequence runs smoothly at speeds up to 30 rpm, yielding up to 16,200 tablets per hour depending on configuration. Its compact benchtop design (480×630×1100 mm) conserves valuable laboratory space while delivering industrial-grade compaction capability. Every machine undergoes factory acceptance testing with real powder to verify tablet weight uniformity, hardness, and thickness before shipment, ensuring out-of-box readiness.

Key Features

• Multi-Station Turret Configuration: Available with 5, 7, or 9 punch stations, each holding standardized 26 mm dies and 22 mm punches. Tooling changes are fast, and the forged alloy steel turret provides exceptional rigidity for consistent tablet quality.
• 40 kN Compaction Force: A robust worm-drive transmission delivers up to 40 kN of pressing power, suitable for a wide range of granulated materials. Symmetrical pressure application through upper and lower rollers minimizes die wall friction and reduces tablet capping or lamination.
• GMP-Compliant Stainless Steel Enclosure: The cabinet, internal table, and all contact parts are fabricated from 304 stainless steel with electropolished finishes. Radiused corners and crevice-free joints eliminate powder residue harbors, meeting stringent pharmaceutical cleaning protocols.
• Transparent Processing Windows: Four tempered-glass panels provide a 360‑degree view of the compression area. Each panel swings open on heavy-duty hinges, enabling quick access for cleaning, die changes, or sampling without removing safety guards.
• Stepless Turret Speed Adjustment: An integrated variable-frequency drive allows precise control from 0 to 30 rpm. Soft-start and soft-stop functions reduce mechanical shock, extending the life of belts and bearing surfaces.
• Independent Mechanical Adjustments: Fill depth (up to 15 mm) is set via a calibrated screw that raises or lowers the feed shoe relative to the die table. Tablet thickness and hardness are independently controlled through an eccentric mechanism on the lower pressure roll, offering repeatable settings without electronic calibration.
• Isolated Transmission Compartment: The motor, synchronous belt, and worm reducer are housed in a sealed lower cabinet, separated from the powder-handling zone by a stainless steel partition. This prevents cross-contamination of product with lubricants and protects drive components from corrosive dust.
• Comprehensive Safety Provisions: An electromagnetic brake stops rotation immediately on power loss or emergency activation. Mechanical overload clutches on the pressure rolls shield the drivetrain from damage. Door interlocks on all access panels prevent operation when open.
• Wide Tooling Compatibility: Supports standard B‑type tooling for round, oval, capsule, and embossed tablets up to 12 mm diameter and 6 mm thickness. Custom punches can be accommodated for unique identification markings or shapes.
• Simple Cleaning and Maintenance: The feed frame, hopper, and lower punch guides can be removed in minutes without tools. Smooth surfaces resist powder adhesion, and the open-frame base allows easy wash‑down, supporting rapid product changeover in multi‑purpose labs.

Applications

Technical Specifications

The following table presents the complete technical parameters for the three available station configurations. All variants share the same tooling dimensions, maximum pressure, and external footprint.

Why Choose This Product

• Laboratory-Optimized Durability: This press is engineered down from full-scale production rotary presses, incorporating the same heavy-duty bearing assemblies and hardened steel cams. It withstands frequent start‑stop cycles and varied material loads typical in R&D labs, delivering years of trouble‑free service.
• Material Integrity and Cleanability: All product‑contact surfaces are 304 stainless steel with a non‑stick finish, preventing powder accumulation and bacterial growth. The rapid‑disassembly design of the feed frame, hopper, and turret simplifies thorough cleaning, essential for multi‑product R&D labs.
• Precision Control for Critical Experiments: Independent, backlash‑free mechanical adjustments for fill depth and thickness, combined with a digital speed display, allow researchers to precisely replicate compression parameters. This repeatability is vital when comparing excipient blends or scaling up from R&D to pilot production.
• Enhanced Operator Safety: Beyond the electromagnetic brake and overload clutches, this unit includes electrical safety interlocks on all doors and a low‑voltage control circuit. The fully guarded compression zone eliminates particle ejection hazards while maintaining visibility.
• Application‑Specific Customization: In addition to the three standard station counts, this machine can be equipped with custom‑shaped punches and dies for unique tablet geometries. Our application engineers can advise on the optimal configuration for your specific material, ensuring maximum R&D efficiency.

Contact our team today to discuss your specific tablet production requirements or to request a customized solution that fits your laboratory workflow. Let our specialists help you configure the ideal tablet press for your application—reach out now for a personalized consultation and competitive pricing.