Roll sizes 6"×13" to 8"×18" · 1–2 kg batch capacity · VFD Uni-Drive · HMI touchscreen · Motorised nip · 4 model configurations · For R&D, QC, and ISO-certified rubber labs.
A laboratory mixing mill is a compact, precision two-roll machine designed specifically for research facilities and quality assurance departments to mix, masticate, and disperse additives into rubber or plastic polymers in small batches.
It uses two heated, counter-rotating chilled alloy rollers running at differential speeds to apply intense shearing and compression forces — creating uniform compound test samples, evaluating formulation performance, testing additive dispersion, and producing colour-matched compound sheets for quality approval before scale-up to production.
Modern Industries laboratory mixing mills are available in three roll sizes (6″×13″, 6″×15″, and 8″×18″) and four model configurations — from a standard fixed-ratio lab mill through to a fully automatic, PLC-controlled, motorised nip version for ISO-certified quality control laboratories.
Modern Industries laboratory mixing mills are available in three roll sizes and four model configurations — from a standard fixed-ratio lab mill through to a fully automatic, PLC-controlled, motorised nip version for ISO-certified quality control laboratories.
| Roll Size | Batch Capacity | Application Scope |
|---|---|---|
| 6" × 13" | Up to 1 kg | Small-scale R&D / Initial compound testing / Pilot formulations |
| 6" × 15" | 1 – 1.5 kg | Standard formulation development / Colour matching / QC testing |
| 8" × 18" | 1.5 – 2 kg | High-capacity QC / Tyre lab testing / Pharma compound batches |
Tell us your batch capacity requirement (up to 1 kg, 1.5 kg, or 2 kg), your control preference (Standard, Uni-Drive, or Automatic), and your primary application. We will recommend the right model and send a quotation within one business day.
Identical Physical Parameters on Every Batch — Preferred by ISO-Certified Labs The inclusion of motorised guides and digital nip sensors on MODERN lab mills ensures that every batch is processed under identical physical parameters. In an ISO-certified quality control laboratory, reproducibility is non-negotiable. If the nip gap varies by even 0.1 mm between test batches, the resulting compound sheet thickness and dispersion quality will differ — making batch-to-batch comparison invalid. Motorised nip adjustment with digital readout eliminates operator-to-operator variation. Every batch, every shift, every operator — the same nip gap, the same conditions, the same result. This is why MODERN lab mills are the preferred choice for ISO-certified rubber testing facilities.
MODERN laboratory mills are equipped with independent drive systems and variable frequency drives (VFD) to allow researchers to simulate exact factory conditions on a miniature scale[cite: 47]. This is the critical capability that separates a proper laboratory mill from a basic testing machine[cite: 48]. When a researcher adjusts the friction ratio, roll speed, or motor load on the lab mill to match the production mixing mill, the compound behaviour observed in the lab directly predicts what will happen on the production floor[cite: 49]. This approach:
Every major tyre company maintains an in-house laboratory for compound incoming quality testing and formulation development. New carbon black grades, polymer blends, or processing aids are tested on the lab mill before being approved for production batches. The MODERN lab mill's ability to simulate factory friction ratios and temperatures makes scale-up calculations reliable and accurate.
Seal manufacturers, hose producers, and gasket companies use lab mills for new compound formulation — testing different accelerator systems, plasticiser levels, and filler loading without committing to full production batches. The 1–2 kg scale is ideal for screening multiple formulations per day.
Pharma rubber stopper manufacturers, surgical glove compounders, and medical tubing producers use the 8"×18" lab mill with TCU temperature control for quality control testing of incoming raw materials. The ISO QC-grade reproducibility — same nip, same temperature, same output — is essential for regulatory compliance.
In addition to rubber, Modern Industries laboratory mills are used for PVC and thermoplastic compound mixing at controlled temperatures. The TCU-integrated roll heating (up to process temperature for PVC) and the VFD speed control make the lab mill versatile for multi-material testing facilities.
University polymer science departments, CIPET (Central Institute of Plastics Engineering & Technology) labs, and government rubber research institutes use lab mixing mills for polymer research. The 6"×13" Standard model is commonly specified for academic applications where budget is a consideration.
A laboratory mixing mill is a compact, precision two-roll machine designed specifically for research facilities and quality assurance departments to mix, masticate, and disperse additives into rubber or plastic polymers in small batches.
It uses two heated, counter-rotating chilled alloy rollers running at differential speeds to apply intense shearing and compression forces — creating uniform compound test samples, evaluating formulation performance, testing additive dispersion, and producing colour-matched compound sheets for quality approval before scale-up to production.
Modern Industries laboratory mixing mills are available in three roll sizes (6"×13", 6"×15", and 8"×18") and four model configurations — from a standard fixed-ratio lab mill through to a fully automatic, PLC-controlled, motorised nip version for ISO-certified quality control laboratories.
Independent drive system with VFD as standard on Uni-Drive models — exact factory condition replication on a 1–2 kg scale. Not available on most entry-level lab mills.
50+ years of rubber machinery manufacturing — Modern Industries production mills are used in many of the same client plants that will use our lab mill for compound development, ensuring spec compatibility between lab results and production performance.
Motorised nip adjustment with digital readout — ISO-grade batch-to-batch repeatability that eliminates operator-introduced variation.
TCU-integrated chilled alloy rolls — precise ±1°C temperature control that matches the accuracy requirements of tyre compound and pharma rubber QC specifications.
Four configuration options from a single supplier — Standard, Uni-Drive, Independent Drive, and Automatic — covering every lab requirement from student use to ISO production QC.
