The TIANHE GZPK-65 and GZPK-71 represent the highest-output tier of our speed tablet press machine lineup, purpose-built for pharmaceutical and nutraceutical manufacturers requiring maximum throughput without compromising on tablet quality. Equipped with 65 and 71 stations respectively using BB and BBS international tooling standards, these machines deliver an industry-leading 462,000 tablets per hour in continuous production mode. The compact tablet size capability (up to 13 mm round and 16 mm irregular) makes the GZPK-65/71 series the definitive choice for high-volume production of small-diameter pharmaceutical tablets including ibuprofen, paracetamol, aspirin, metformin, and other essential medicines that demand millions of units per production campaign. Every machine integrates the TIANHE intelligent tablet weight control system with automatic rejection of out-of-specification tablets, dual compression roller architecture for superior density uniformity, and a fully enclosed GMP-compliant compression compartment constructed from pharmaceutical-grade stainless steel. The 71-station GZPK-71 with BBS tooling achieves the highest station density in its class, delivering maximum output per square meter of factory floor space while maintaining the precision and reliability that global pharmaceutical manufacturers expect from TIANHE.

• Maximum Output Architecture with 65/71 Stations: Engineered for pharmaceutical mass production, the GZPK-65 and GZPK-71 pack the highest station count in the GZPK series into a standard footprint of 1530 x 1250 mm. At 70 r/min turret speed, both models achieve the category-leading output of 462,000 tablets per hour, translating to over 11 million tablets per 24-hour shift, making this speed tablet press machine the preferred choice for generic drug manufacturers and contract manufacturing organizations worldwide.
• Intelligent Online Weight Control with Auto-Rejection: Every tablet produced passes through the integrated weight monitoring station, which uses high-precision load cell technology to measure individual tablet weight in real time. Tablets falling outside the programmable tolerance window are pneumatically diverted to a dedicated rejection channel without interrupting production. The system logs weight trend data for quality assurance documentation, enabling statistical process control and real-time process capability (Cpk) monitoring.
• Dual Compression Roller Twice-Compression System: Each die cavity receives two compression events per turret revolution through the tandem main and pre-compression roller arrangement. The pre-compression stage evacuates entrapped air from the granule bed at 20 KN, while the main compression stage applies up to 100 KN of force to achieve target tablet hardness. This staged compression approach virtually eliminates capping, lamination, and weight variation issues that plague single-compression machines at high operating speeds.
• BB and BBS Tooling for Small Tablet Precision: The GZPK-65 (BB tooling) and GZPK-71 (BBS tooling) are optimized for the most common small-diameter pharmaceutical tablet formats. BBS tooling with its compact punch tip geometry allows 71 stations on a single turret, maximizing output density per machine. Both tooling types are fully compatible with TSM and EU international standards, ensuring seamless integration with existing tooling inventories and rapid product changeover capabilities.
• Double Impeller Force Feeder with Active Fill Control: Proprietary twin-impeller feeding technology actively drives powder and granule formulations into die cavities with controlled pressure, overcoming flow challenges posed by cohesive, electrostatic, or low-bulk-density materials. The independently adjustable impeller speeds allow formulation-specific optimization of die fill consistency, achieving weight variation coefficients below 1% RSD even at maximum turret speed.
• Fully Enclosed GMP-Compliant Compression Zone: The tablet compression compartment is hermetically sealed behind transparent tempered glass panels, maintaining ISO Class 8 cleanliness within the product contact zone while allowing operators full visual access to the compression process. All product-contact surfaces are constructed from 316L stainless steel with electropolished finishes to Ra less than or equal to 0.4 microns, preventing material adhesion and facilitating validated clean-in-place procedures.
• Automatic Central Lubrication with Contamination Prevention: A programmable progressive lubrication system delivers metered quantities of food-grade grease and pharmaceutical-grade oil to all wear points including upper and lower punch guides, pressure roller bearings, and cam tracks. The sealed delivery network prevents any lubricant from entering the product zone, while automated low-level alerts and cycle counters ensure maintenance compliance without operator intervention.

The GZPK-65/71 speed tablet press machine is engineered for ultra-high-volume pharmaceutical production environments where throughput, consistency, and regulatory compliance are non-negotiable. In generic pharmaceutical manufacturing, these machines compress high-demand APIs including paracetamol, ibuprofen, metformin hydrochloride, amoxicillin, and omeprazole into millions of tablets per day with batch-to-batch weight uniformity that exceeds USP and EP monograph requirements. For dietary supplement and vitamin production, the GZPK-65/71 handles complex multi-component blends containing vitamins, minerals, herbal extracts, and direct-compression excipients, producing small-diameter tablets suitable for easy swallowing and high consumer compliance. In over-the-counter (OTC) drug manufacturing, the machine supports chewable antacid tablets, cough suppressant lozenges, and effervescent pain relief tablets with the GMP documentation package required for FDA and EU regulatory submissions. The exceptionally high station density of the GZPK-71 with BBS tooling makes it the most floor-space-efficient speed tablet press machine available, enabling contract manufacturing organizations (CMOs) to maximize revenue per square meter of production area. Veterinary pharmaceutical producers utilize the GZPK-65/71 for small animal medication tablets including flea and tick preventatives, deworming tablets, and antibiotic formulations where consistent low-dose accuracy is critical for animal safety and efficacy.

Each TIANHE GZPK-65/71 speed tablet press machine is prepared for international shipment in a reinforced fumigated wooden crate with multi-layer VCI (volatile corrosion inhibitor) film wrapping, silica gel desiccant packs, and shock-absorbing foam cushioning at all critical mounting points. The shipment includes a comprehensive documentation package consisting of the factory acceptance test protocol with actual measurement data, installation qualification and operational qualification templates aligned with ISPE baseline guide recommendations, a 12-month consumable spare parts kit, and an illustrated operator and maintenance manual in English. TIANHE maintains ISO 9001:2015 certified quality management and subjects every machine to a minimum 72-hour continuous dry-run test with statistical tablet parameter sampling at 2-hour intervals before release for shipment. Our global service infrastructure includes seven field engineers holding valid passports and international travel documentation, capable of deploying to your facility for installation supervision, mechanical commissioning, electrical integration, and hands-on operator training. Post-installation support is delivered through a 24-hour technical hotline, 18-hour online engineering chat, and real-time workshop video diagnostics that connect your maintenance team directly to TIANHE headquarter engineers for rapid troubleshooting and resolution of any operational concerns.