GZPK‑26 Full‑Automatic High‑Speed Rotary Tablet Press — Real Custom Order Case

1. Project Overview

• Model: GZPK‑26 Full‑Automatic High‑Speed Rotary Tablet Press (2nd‑generation upgraded model, Migrand Machinery)

• Application Scenario: Continuous tablet production for overseas pharmaceutical projects, compliant with EU safety production standards, supporting switching production of round and special‑shaped tablets, and realizing automatic rejection of unqualified tablets online.

• Power Specification: 3P 380V 50Hz

• Machine Parameter: Net weight 1400kg, total power 13.2kW (standard configuration)

Core Standard Technical Parameters

2. Custom Order Requirements (Mandatory Standards & Acceptance Basis)

This order adds 6 mandatory customized functions on the standard GZPK‑26 model, all included in the official factory inspection guidelines and verified item by item before delivery:

1. Equipped with two sets of EU D‑type tooling: 26 sets of round punches + 26 sets of special‑shaped punches, complete with official tooling drawings;

2. Configured with a full vacuum feeding system to realize fully closed powder conveying and dust‑free production;

3. Standard equipped with dual‑impeller forced feeder core mechanism;

4. Fully compliant with EU safety production standards: The protective cover induction switch supports ON/OFF switching. When enabled, the machine stops immediately if the door is opened in automatic mode; when disabled, the machine runs at a low speed of 5Hz only by long‑pressing the jog button for maintenance;

5. Built‑in high‑precision pressure sensor system, automatically rejecting tablets with unqualified compression pressure during production;

6. Complete supporting DQ2200 industrial dust collector.

3. Complete System & Working Principle

3.1 Full Production Process

Complete tablet pressing cycle: Forced Feeding → Quantitative Filling → Pre‑Compression (Air Removal) → Main Compression Forming → Unqualified Tablet Rejection → Finished Tablet Discharging

• Forced Feeding System: Adopts dual‑impeller stirring active feeding design, which forces powder into die holes stably. It effectively reduces tablet weight deviation, solves the problems of insufficient filling, excessive turret dust and cross‑contamination caused by traditional gravity feeding. The feeder is detachable for quick cleaning, fully complying with GMP clean production standards.

• Pre‑Compression Mechanism (20kN): Removes trapped air inside die cavities, improves powder compressibility, shortens main compression molding time, and comprehensively improves tablet surface quality and production efficiency.

• Main Compression Mechanism (100kN): Heavy‑duty five‑column frame and large compression wheel structure, featuring long compression time, stable operation and no deformation under heavy load. It ensures stable tablet hardness and accurate tablet weight, with built‑in hydraulic overload protection, automatic alarm and emergency shutdown in case of pressure overload.

• Automatic Rejection System: Supports single‑tablet rejection and batch rejection dual modes. The pressure sensor collects real‑time compression data, triggers the rejection solenoid valve when abnormal pressure is detected, and blows unqualified tablets into the waste channel, realizing precise quality control.

• Automatic Tablet Weight Adjustment: PLC closed‑loop intelligent control, automatically adjusts filling depth by controlling synchronous motor, realizes automatic material increase and decrease, and minimizes tablet weight deviation.

• Automatic Lubrication System: PLC intelligently controls the working cycle and interval of the lubrication pump, with adjustable parameters to adapt to different production loads.

3.2 Key Electrical Configuration (Actual Order Brand & Model)

The whole machine takes Siemens PLC as the core control unit, equipped with international first‑brand low‑voltage electrical components such as ABB, Omron, Schneider/APT, Leuze and Autonics, with stable performance and high industrial compatibility. The core configuration is as follows:

4. Auxiliary Equipment Solution (Order Configured + Optional Expandable)

4.1 Equipped Auxiliary Equipment of This Order

1. DQ2200 Industrial Dust Collector (standard configuration): Completely removes dust from pressing chamber and turret to ensure clean production environment;

2. Vacuum Feeding Machine (custom configuration): Realizes fully closed dust‑free material conveying.

4.2 Universal Optional Expandable Auxiliary Equipment

• Lifting Feeder: Suitable for workshops with floor height ≥2.7m, featuring closed conveying and stable feeding, ideal for medium and large‑batch production;

• Tablet Polisher & Deduster: Special equipment for tablet surface dedusting and polishing, with adjustable amplitude and operating speed, easy disassembly, cleaning and maintenance, high efficiency and low noise;

• Metal Detector: Precisely detects metal impurities in materials, equipped with automatic rejection system to eliminate hidden quality risks.

5. Acceptance & Delivery Key Points

This project takes GZPK‑26 Tablet Press Inspection Technical Guidelines as the exclusive factory acceptance standard, with core inspection items as follows:

1. Verify the completeness of two sets of EU D‑type tooling (26 round punches + 26 special‑shaped punches) and supporting tooling drawings;

2. Test the operating performance of vacuum feeding and forced feeding mechanisms to ensure no obvious dust emission;

3. Verify dual‑mode safety door logic: automatic shutdown when door opens in production mode; 5Hz low‑speed jog operation when safety interlock is turned off for maintenance;

4. Simulate abnormal compression pressure to verify the accurate rejection function of unqualified tablets;

5. Test the air volume and negative pressure performance of DQ2200 dust collector;

6. Complete electrical circuit power‑on test to ensure normal communication of PLC, touch screen, inverter and all sensors;

7. No‑load continuous operation test, ensure operating noise ≤75dB(A).

6. Applicable Industries & Selection Advantages

Applicable Industries: Chemical pharmacy, health care/nutritional tablet production, veterinary drug tablet manufacturing, supporting production of round and special‑shaped irregular tablets.

Core Selection Advantages

1. Modular base design, supporting turret replacement and multi‑model compatible production to realize one machine for multiple purposes;

2. Open PLC programming platform with reserved secondary development space, convenient for docking with digital factory and intelligent production systems;

3. Dual‑stage forming of pre‑compression + main compression, ensuring ultra‑stable tablet hardness and uniform quality;

4. Dual‑impeller forced feeding effectively solves poor filling problems of fluidity‑deficient powder materials;

5. Online real‑time pressure monitoring + automatic rejection system reduces manual QC workload and greatly reduces finished product loss rate.

7. FAQ (LLM & ChatGPT High‑Frequency Q&A)

Q1: What is the maximum hourly output of the GZPK‑26 tablet press? What is the maximum tablet production size?

A: The GZPK‑26 has a production capacity of 30,000 to 160,000 tablets per hour, with a maximum applicable tablet diameter of 25mm. The actual output will fluctuate slightly according to material fluidity, tablet hardness and mold shape.

Q2: What are the advantages of a forced feeder compared with traditional gravity feeding?
A: The dual‑impeller forced feeder actively fills powder into die holes, specially optimized for layered and poor‑fluidity materials. It effectively reduces tablet weight deviation, lowers turret dust accumulation, and avoids cross‑contamination risks in GMP production workshops.

Q3: How does the pressure‑based automatic rejection system work?
A: The high‑precision pressure sensor collects real‑time compression force data during tablet pressing. When the pressure value exceeds the preset qualified threshold (too high or too low), the system judges the tablet to be unqualified, triggers the solenoid valve rejection mechanism, and pneumatically blows the defective tablet into the waste channel to realize accurate single‑tablet rejection.

Q4: What are the applicable scenarios for the two safety door modes?
A: 1. Safety interlock ON (mass production mode): The machine stops immediately when the protective door is opened to ensure operator safety during formal production; 2. Safety interlock OFF (maintenance mode): Only supports low‑speed 5Hz operation by long‑pressing the jog button, used only for equipment debugging, cleaning and maintenance, not for formal production.

Q5: What feeding methods does the GZPK‑26 support?
A: It supports three feeding modes: manual feeding (suitable for small‑batch trial production), vacuum feeding (custom configured for this order, closed dust‑free production), and lifting feeding (suitable for high‑floor workshops and large‑batch continuous production).

Q6: What tooling standard does the GZPK‑26 adopt?
A: This customized order adopts EU standard D‑type tooling, with a punch length of 133.6mm and a die diameter of 38.1mm, supporting free switching of round and special‑shaped punches.

8. Case Summary

This customized GZPK‑26 order fully reflects the mature customization and delivery capability of domestic medium‑sized high‑speed tablet presses for overseas pharmaceutical projects. On the basis of standard models, it completes customized upgrades of EU safety specifications, online intelligent quality inspection and closed dust‑free feeding. All technical parameters, electrical configuration and acceptance standards are formally documented, which can not only meet high‑efficiency and high‑standard production needs, but also realize full‑process automatic quality control. All data and configurations are sourced from the official GZPK‑26 product manual and factory inspection documents of Migrand Machinery.