Compounding extruder MC 40

twin screwco-rotating twin-screwcounter-rotating twin-screw

Overview
The MC 40 is a high-torque laboratory micro-compounder designed for larger-volume material development in both batch and continuous processing. Its compact footprint allows bench or fume-hood installation. The 40 ml batch capacity enables flexible material screening and sample preparation, while continuous operation supports process-oriented R&D. With a maximum melt torque of 40 Nm across the full rpm range, the system enables controlled shear rates and effective mixing of high-viscosity polymer compounds, supporting stable processing conditions and reproducible results.

Performance and mixing
With a screw torque of 40 Nm, processing rubbers and elastomers is possible even with fully intermeshing screws. The co-/counter-rotating screw configuration delivers more homogeneous mixing than typical tangential screw mixers, ensuring consistent properties throughout every cubic centimeter of material and improved reproducibility across samples.

Comparison with other MC models

• MC Xperience 5 — Batch volume: 5 ml*, Max. torque: 10 Nm (15 Nm**), Torque per volume: 2 Nm/ml (3 Nm/ml**), Max. temperature: 350 °C (425 °C**), Screw speed: 1–425 rpm, Active cooling: Manual/optional, Application: small-scale micro-compounding
• MC Xperience 15 — Batch volume: 15 ml, Max. torque: 15 Nm (20 Nm**), Torque per volume: 1 Nm/ml (1.3 Nm/ml**), Max. temperature: 350 °C (425 °C**), Screw speed: 1–425 rpm, Active cooling: Manual/optional, Application: reliable micro-compounding
• MC 15 HT (Vari‑Batch®) — Batch volume: 15 ml, Max. torque: 40 Nm, Torque per volume: 2.7 Nm/ml, Max. temperature: 475 °C, Screw speed: 0.1–500 rpm, Active cooling: Automated standard, Application: high-end micro-compounding for challenging systems
• MC 40 — Batch volume: 40 ml, Max. torque: 40 Nm, Torque per volume: 1 Nm/ml, Max. temperature: 425 °C, Screw speed: 0.1–500 rpm, Active cooling: Automated standard, Application: high-volume batch & continuous micro-compounding

Documents
Specification sheet available for MC 40.

Technical specifications

• Model: MC 40
• Batch volume: 40 ml
• Maximum melt torque / screw torque: 40 Nm (across full rpm range)
• Torque per volume: 1 Nm/ml
• Maximum temperature: 425 °C
• Screw speed range: 0.1–500 rpm
• Screw rotation mode: Co‑ / counter‑rotating (standard)
• Active cooling: Automated (standard)
• Processing modes: Batch and continuous operation supported
• Designed for high-viscosity polymer compounds, rubbers and elastomers; supports fully intermeshing screws for superior mixing homogeneity
• Compact footprint suitable for laboratory bench or fume hood installation