Plastograph HAPRO
Key Specifications:
| Parameter | Value |
| Working volume | 60 ml (200 ml and 300 ml chambers are available) |
| Chamber material | 630 precipitation-hardening stainless steel |
| Rotors | Roller; options: Banbury, Cam, Sigma, Delta |
| Rotor speed ratio | 3:2 |
| Temperature | up to 350 °C |
| Torque | up to 240 N·m |
| Rotor speed | 0.1-200 rpm |
| Heating | electric, 3 zones, PID |
| Loading | pneumatic |
Description:
The plastograph is a Hapro laboratory unit for evaluating the behaviour of polymer compounds under heat and shear. It operates together with a central unit that provides the drive, control, torque measurement and data transfer to software for process visualisation.
The plastograph is used for formulation development, incoming raw-material inspection, comparison of stabilizers, modifiers, lubricants and other formulation components. During testing, the system records torque, temperature and process time.
The key advantage of the Hapro plastograph is the combination of technical capability and cost. With comparable functionality, Hapro equipment is more affordable than European Brabender-class alternatives while remaining comparable in build quality and practical suitability for industrial laboratory applications.
Applications:
For PVC processors, the plastograph is one of the key laboratory instruments. It enables evaluation of gelation, torque, compound stability under heat and the effect of lubricant balance.
For polyolefins and cable compounds, the plastograph can be used to evaluate melting behaviour, shear sensitivity, additive performance and crosslinkable systems.
