Product Introduction

Core Product Advantages

1. 10KN / 20KN Dual Optional High Loading Capacity
   Two standard maximum thrust configurations are available to match diverse material testing demands. The 20KN high-load version supports high-filler glass fiber plastics, metal injection feed and ultra-high molecular weight resins, while the 10KN model fits conventional PP, ABS and elastomer materials. Pressure sensors deliver measuring precision better than 0.25% full scale, eliminating data drift under long-duration high-pressure extrusion.
2. Ultra-Wide Stepless Speed Regulation Range
   Servo drive system realizes 0.0005–20 mm/s infinitely adjustable piston velocity, with a dynamic speed ratio up to 1:40000. It covers ultra-low shear rate simulation for film blowing and high shear rate replication for injection molding, allowing full-spectrum rheological characterization without equipment replacement.
3. High Uniform Multi-Zone PID Temperature Control
   Max working temperature reaches 400°C, supported by segmented spiral heating barrels with independent PID closed-loop temperature control. Temperature display resolution hits 0.1°C, with temperature fluctuation controlled within ±0.5°C, preventing local overheating that triggers polymer degradation during testing. Custom barrel lengths and inner diameters (9.5/12/15mm) are available for special sample volumes.
4. Wear-Resistant Tungsten Carbide Standard Die Kit
   Supports interchangeable tungsten alloy capillary dies with multiple L/D ratios (5/10/20/30mm length options, 0.5/1/2mm bore sizes). The ultra-smooth inner bore resists abrasion from mineral fillers, carbon black and glass fiber additives, maintaining long-term dimensional stability for consistent parallel test results. Multiple die combinations can be selected per inspection requirements.
5. Integrated Pneumatic Auxiliary Cleaning System
   Exclusive pneumatic clearing structure drastically cuts manual cleaning workload after each test cycle. Residual molten polymer inside the barrel can be quickly stripped without heavy manual scraping tools, effectively avoiding cross-contamination between different formulations and shortening batch testing intervals. Standard manual cleaning tools are included as backup accessories.
6. Humanized PC Intelligent Analysis Software
   Dedicated matching software synchronously records all test parameters in real time, automatically calculating shear rate, shear stress, apparent viscosity and die swell values. It supports linear/log axis one-click switching, multi-group curve overlay comparison, raw data storage and editable PDF inspection report export, fully meeting laboratory data archiving and certification reporting standards.

Standard Complete Test Operation Flow

1. Equipment Preheating & Die Installation
   Select matched tungsten carbide capillary die and lock into the heating barrel, power on the temperature control system and stabilize target temperature for 15–20 minutes to ensure uniform thermal field inside the cavity.
2. Sample Drying & Loading
   Fully dry granular raw materials to remove internal moisture, quantitatively load the polymer sample into the barrel and vertically install the piston rod to avoid melt leakage during extrusion.
3. Test Scheme Setup On Computer
   Open the dedicated rheology software, select constant speed or constant pressure test mode, set piston travel limit, data recording frequency and test duration, save custom test recipes for repeated batch inspection.
4. Automatic High-Pressure Extrusion Test
   Activate the test program; the servo piston pushes molten material through the standard capillary die under stable preset load. The system continuously captures pressure, displacement and temperature data to generate real-time viscosity characteristic curves.
5. Rheology Data Calculation & Comparison
   After the test cycle completes, the software automatically computes core rheology indicators and supports overlay analysis of multi-batch curves to compare fluidity differences of various formulations. Standard test reports can be printed and exported in one click.
6. Pneumatic Cleaning & Equipment Shutdown
   Cool the heating barrel below 100℃, start the pneumatic auxiliary cleaning system to clear residual melt inside the cavity, disassemble the die for thorough wiping, then cut off heating and main power supply.

Full Technical Parameter Specification Table

Wide Applicable Industrial Testing Scenarios

Modified Plastic & Masterbatch Manufacturers

Metal Injection Molding (MIM) Labs

Rubber & Thermoplastic Elastomer Enterprises

New Energy Material R&D Institutes

University & Third-Party Certification Labs

Standard Factory Full Delivery Kit

1. KR-722 main high-load capillary rheometer host (10KN/20KN optional frame)
2. Segmented spiral heating barrel assembly + customizable piston rod
3. Full set of multi-spec tungsten carbide capillary dies (select two sets as required)
4. High-precision pressure sensing module and closed-loop servo drive system
5. Pneumatic automatic cleaning unit + matched manual cleaning tool kit
6. Dedicated PC rheology analysis software + data transmission communication cable
7. Multilingual operation manual complying with ISO 11443 & ASTM D3835 standards
8. Factory pressure & temperature calibration inspection qualification certificate