Rotary tablet press HGZP series

automatic

Product overview
Tablet compression machine is essential equipment for producing solid tablets by compacting powdered or granular materials. Powder or granules enter the double impeller forced feeder, where upper and lower punches apply mechanical pressure to compress powder or granules into uniform-weight tablets. The compacted tablet is ejected vertically by the lower punch and guided to collection via scrapers.

Key capabilities

• Continuous high-speed multi-station rotary compression for stable, uniform tablets.
• Automated cycles with strict control of tablet weight uniformity, hardness and thickness suitable for pharmaceutical, nutraceutical and industrial applications.
• Integrated real-time inspection and rejection to remove out-of-spec tablets during production.

Specification

• Maximum throughput up to 95,000 pcs/h (model dependent).
• Maximum tablet diameter up to 25 mm (model dependent).
• Main compression pressure up to 100 kN with preload 12 kN (model dependent).
• Real-time online inspection and rejection system for weight and quality control.

How the automatic rotary tablet press works
The system continuously and stably compresses tablets of uniform weight by monitoring the pressure of each punch; tablets not meeting requirements are identified and rejected to improve overall qualification rate.

Main Features

• Auto-Adjusting Weight Control System: servo-driven fill-depth control with closed-loop feedback to maintain average tablet weight accuracy ≤ ±2%.
• Real-Time In-Line Rejection System: precision ejection for continuous or single-tablet rejection to prevent out-of-spec tablets from continuing to downstream processes.
• Dual Forced Feeding System: twin asymmetric stirrers (metering + homogenizing) and anti-cavitation design to prevent segregation and maintain uniform bulk density.
• Per-Tooling Pressure Monitoring & Auto-Correction: pressure sensors on every punch pair with high-frequency monitoring and self-learning algorithms to adjust fill depth and compensate for tool wear.
• Turntable and materials: high-strength stainless steel turntable for hygienic operation and robust mechanical resistance.
• PLC/automation capabilities for stable tablet formation, low noise and consistent weight control; supports data export for MES/OPC-UA integration.

HGZP-15/20D advantages

• Turntable constructed from high-strength 2Cr13 stainless steel for hygiene and impact resistance.
• Servo motor controlled filling cam tracks automatically compensate filling volume to achieve tight tablet weight control.
• Real-time online inspection and rejection supports continuous and single-tablet rejection modes.
• Adjustable compression forces for upper and lower punches with PLC auto-response to maintain stable tablet characteristics.

Main parts and systems

• Force feeder (dual forced feeding)
• Tablet output/ejection and scraper system
• Turntable with PTFE precision scrapers and powder reclaiming/collection channels
• Punches, molds and per-tooling pressure sensors
• Powder reclaiming system and optional active vacuum extraction rings

caractéristiques / spécifications techniques

• Models: HGZP-15D, HGZP-17D, HGZP-20D
• Max Production Output: HGZP-15D = 65,000 pcs/h; HGZP-17D = 75,000 pcs/h; HGZP-20D = 95,000 pcs/h
• Max. Tablet Diameter: HGZP-15D = 25 mm; HGZP-17D = 16 mm; HGZP-20D = 13 mm
• Max Depth of Filling: HGZP-15D = 20 mm; HGZP-17D = 16 mm; HGZP-20D = 16 mm
• Max Tablet Thickness: HGZP-15D = 10 mm; HGZP-17D = 8 mm; HGZP-20D = 8 mm
• Main Pressure / Pre-pressure: HGZP-15D = 100 kN / 12 kN; HGZP-17D = 80 kN / 12 kN; HGZP-20D = 80 kN / 12 kN