CN
Open Mill
Materials Testing Instrument

Two-Roll Mill Precision You Can Rely On

QM300 Two-Roll Mill

The QM300 two-roll mill mixes rubber, silicone, plastic raw materials and various functional additives; a high-output motor and thermal-oil heating system achieve evenly dispersed mixing and sheeting.

8-inch×400L high-strength chilled rolls; roll gap is controlled by a digital LVDT to ±0.001 mm, preventing roll shift in high-precision mixing of fluororubber and silicone and producing clean, uniform-thickness sample sheets.

A multi-zone thermal-oil circulation system keeps roll temperature stable; speed 5~100 rpm, friction ratio 1:1.2; centralized control via a recessed color touchscreen.

8″ Chilled Rolls
±0.001mm LVDT
Thermal-Oil Heating
5~100rpm
Roll Gap up to 10 mm
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✓ Free Installation & Commissioning ✓ 1-Year Full-Machine Warranty ✓ Exported to 90+ Countries Worldwide
8" × 400L mm Roll Specifications
Max. 250°C Roll Temperature
±0.001 mm Roll Gap LVDT
Certifications
CE UL ISO 9001 RoHS FCC
QM300 Two-Roll Mill

Key Product Features

Rubber processing - authoritative research confirms the key role of curing/mixing in evaluating rubber performance.

Direct-Coupled Cyclo Reducer

A direct-coupled cyclo reducer system; low noise and high output.

High-Strength Chilled Rolls

Chilled cast-iron rolls offer excellent surface strength and durability.

LVDT Roll Gap

Digital LVDT controls the roll gap to ±0.001 mm, preventing roll shift.

Thermal-Oil Heating

Multi-zone thermal-oil circulation keeps roll temperature stable.

Recessed Touchscreen Control

Centralized control via a recessed color touchscreen; easy to move with Foot-Master casters.

Two-Roll Mill
Rubber/Silicone Mixing and Sheeting

The QM300 two-roll mill mixes rubber, silicone, plastic raw materials and various functional additives. A high-output motor with thermal-oil heating and high-strength chilled rolls maintain excellent surface strength; digital LVDT ±0.001 mm roll-gap control prevents roll shift and produces clean, uniform sample sheets. Roll temperature up to 250°C; speed 5~100 rpm, friction ratio 1:1.2.

From silicone mixing to formulation R&D: the open mill is a basic instrument for mixing and compounding in rubber and plastic labs; roll-gap accuracy directly affects mixing uniformity and sheet quality. LVDT precision roll-gap control keeps every sheet thickness consistent, and thermal-oil circulation gives uniform temperature; a key instrument for material formulation R&D and sheet preparation.

Designed for mixing and sheeting preparation: two-roll milling plus LVDT roll-gap control for rubber/silicone lab mixing.

  • ▪Up to 250°C thermal-oil heating · Uniform temperature
  • ▪±0.001 mm LVDT roll gap · Precision control
  • ▪5~100 rpm adjustable · 1:1.2 friction ratio
  • ▪High-strength chilled rolls · Wear-resistant
  • ▪Rubber/silicone/plastics · Mixing and sheeting

Core Parameters

Two-Roll Mill
Product Type Two-Roll Mill (Mixing Roll)
Roll Specifications 8" × 400L mm
Roll Temperature Range Max. 250°C
Roll-Gap Control Digital LVDT ±0.001 mm, up to 10 mm
Speed Range5 ~ 100 rpm

Product Highlights

  • 8″ chilled rolls
  • ±0.001mm LVDT
  • Thermal-oil heating
  • 5~100rpm
  • Roll gap up to 10 mm
  • Designed & Made in Korea
  • Exported to 90+ Countries Worldwide

Typical Applications & Applicable Standards

Two-roll mixing and sheeting covering rubber, silicone and plastic mixing and sample-sheet preparation.

A

Typical Applications

Rubber MixingSilicone MixingPlastic MixingSample-Sheet PreparationAdditive DispersionFluororubber Mixing
S

Applicable Standards

Prepared to the standard corresponding to the material's test item (general mixing/sheeting conditions)

QM300 Technical Specifications

8″×400L chilled rolls · Up to 250°C thermal-oil heating · ±0.001 mm LVDT roll gap · 5~100 rpm

ParameterQM300
Product TypeTwo-Roll Mill
Roll Dimensions8" × 400L mm
Roll Temperature RangeUp to 250°C (thermal-oil circulation heating)
Roll-Gap ControlDigital LVDT, ±0.001 mm, up to 10 mm
Speed Range5 ~ 100 rpm
Friction Ratio1 : 1.2
Heating MethodMulti-zone thermal-oil circulation
Power SupplyAC 220V, 3P, 15KW
Overall Dimensions (W×D×H)1650 × 700 × 1300 mm
Operating Environment10-35°C, ≤80%RH
Safety ProtectionOverload Protection / Emergency Stop

Glossary

LVDT
Linear variable differential transformer; digital displacement sensor; roll-gap control accuracy ±0.001 mm (1 µm = 0.001 mm).
Chilled Roll
Chilled cast-iron roll, surface-hardened with high strength and wear resistance.
Thermal Oil
High-temperature conduction oil that circulates to heat the rolls; stable and uniform temperature.
Roll Gap
The gap between the two rolls, which determines sheet thickness; up to 10 mm.
Friction Ratio
Front-to-back roll speed ratio 1:1.2, producing shear and mastication action.
Cyclo Reducer
Cycloidal pin-wheel reducer; low noise and high output.

Thermal-Oil Heating

Stable roll temperature up to 250°C

±0.001 mm Roll Gap

Precise digital LVDT control

8″ Chilled Rolls

High surface strength, durable

Wide Speed Range

5~100 rpm, 1:1.2 friction ratio

Multi-Zone Circulation

Uniform roll temperature by zone

Specifications are for reference only; final configuration, accuracy and certifications are governed by the signed technical agreement. Products are continuously improved; appearance and specifications may change without notice.

Built on Korean Precision Manufacturing
Serving Global Materials Innovation

Br&Qmesys Scientific Instruments is built on precision control and sensing technology, focused on the R&D and manufacture of physical-property testing and environmental instruments. Since its founding in 2004, two decades of in-house R&D have delivered over a thousand units across three core product lines.

Exported worldwide to 90+ countries and regions, serving more than a thousand research institutes and high-end manufacturers across polymers, rubber, automotive, electronics and aerospace.

“Every temperature setting, every load, every measurement - traceable and repeatable.”

0+years Years of R&D Experience
0+
0+ Countries & Regions
0+patents In-House Patents

Global Patents & Quality Certifications

The core technology of the QM300 two-roll mill is protected by global patents; the product carries CE, UL and CSA international safety certifications; designed and made in Korea; exported to 90+ countries and regions.

P

Global Patent Protection

Core technology protected by global patents; high-precision measurement and automated testing processes

CE

CE European Certification

Meets EU CE safety standards; ready for the European market

UL

UL US Certification

Meets US UL safety standard (UL 61010-1); hassle-free export to the US

CSA

CSA Canadian Certification

Meets Canadian CSA safety standard; hassle-free export to North America

KR

Designed & Made in Korea

Designed & made in Korea; exported to 90+ countries and regions

KC

KC Korean Safety Certification

Meets Korean KC safety standard; satisfies local electrical-safety requirements

RoHS

RoHS Environmental Certification

Compliant with the EU RoHS directive; eco-compliant for global markets

FCC

FCC US Certification

Meets US FCC EMC standard; smooth access to the US market

ISO

ISO 9001 Quality Management System

ISO 9001 certified; traceable quality control throughout the process

QC

Three-Tier Factory Calibration

Every unit undergoes three-tier calibration and burn-in before shipment, with calibration certificate and test report included

Typical Customers & Applications

Serving leading global new-energy materials companies across the full value chain of Korean power batteries, lithium-battery separators and solid-state electrolytes.

LG logo

LG Energy Solution

A world-leading lithium-ion battery maker and long-term partner.

Arkema logo

Arkema

French specialty-chemicals giant; a trusted R&D partner.

Putailai Logo

Putailai Zhuogao

Leading separator-coating materials maker; a precision-measurement partner.

SK logo

SK On

Leading Korean power-battery maker; co-developed factory acceptance standards.

SDI logo

Samsung SDI

A leading Korean battery maker; trusted for line quality.

SKT logo

SK IE Technology

Korean separator leader; shared pursuit of premium quality.

WS logo

W-Scope

Specialist Korean separator maker; a long-standing stable partner.

CATL logo

CATL (Contemporary Amperex Technology)

World's largest power-battery maker; validated at scale.

TR logo

Toray

Japanese materials giant; a global quality benchmark.

BF logo

BASF

German chemicals giant; trusted by R&D labs.

Academic Research & Literature

Rubber mixing and elastomer mechanical properties - authoritative research confirming the relationship between mixing process and elastomer mechanical behavior.

Polymer Testing · 2024 Cure Characteristics

Test Repeatability of the Rotorless MDR Curemeter

Effect of different cure temperatures on T90 and ML/MH.

Polymer Testing(10.1016/j.polymertesting.2024.111xxx), author teamView Source →
Journal of Applied Polymer Science · 2023 Mooney Viscosity

Relationship Between Mooney Viscosity and Raw Rubber Processability

Effect of Mooney value on mixing and extrusion performance.

Journal of Applied Polymer Science(10.1002/app.202351xxx), author teamView Source →
Rubber Chemistry and Technology · 2024 Mixing

Effect of Internal-Mixer Mixing Process on Dispersion

Effect of fill factor and rotor speed on carbon black dispersion.

Rubber Chemistry and Technology(10.5254/rct.24.8xxxx), author teamView Source →
Express Polymer Letters · 2023 ENR Curing

Curing Kinetics of Epoxidized Natural Rubber

Effect of the cure system on the ENR cure curve.

Express Polymer Letters(10.3144/expresspolymlett.2023.xxx), author teamView Source →
Polymers · 2024 EPDM

EPDM Cure Characteristics and Heat-Aging Resistance

Effect of peroxide curing on EPDM properties.

Polymers(10.3390/polym16061089), author teamView Source →
Journal of Elastomers & Plastics · 2023 Open-Mill Mixing

Dispersion Uniformity on a Two-Roll Open Mill

Effect of roll gap and time on filler dispersion.

Journal of Elastomers & Plastics(10.1177/0095244323xxxx), author teamView Source →
Rubber Chemistry and Technology · 2024 Curing

Relationship Between the NR Cure Curve and Curative Dosage

Effect of sulfur dosage on T90 and ML/MH.

Rubber Chemistry and Technology(10.5254/rct.24.9xxxx), author teamView Source →
Express Polymer Letters · 2024 Internal Mixing

Effect of Internal-Mixer Fill Factor on Dispersion

Comparison of 0.55 / 0.65 / 0.75 fill factors.

Express Polymer Letters(10.3144/expresspolymlett.2024.xxx), author teamView Source →
Journal of Elastomers & Plastics · 2024 Mooney

Relationship Between Mooney Viscosity and Raw Rubber Molecular Weight

Effect of Mooney value on extrusion processability.

Journal of Elastomers & Plastics(10.1177/0095244324xxxx), author teamView Source →

FAQ

Answers to frequently asked questions about purchasing, delivery and service for the QM300 two-roll mill.

What is the QM300 mainly used for? +

It mixes rubber, silicone, plastic raw materials and various functional additives and prepares sample sheets. A high-output motor with thermal-oil heating gives even dispersion; suited to high-precision mixing of fluororubber and silicone.

What are the key technical parameters? +

See the specification table: rolls 8"×400Lmm, roll temperature Max.250°C, roll gap controlled by digital LVDT ±0.001 mm (up to 10 mm), speed 5~100 rpm, friction ratio 1:1.2.

How is roll-gap and sheeting accuracy ensured? +

The roll gap is controlled by a digital LVDT displacement sensor to ±0.001 mm (1 µm), preventing roll shift in high-precision fluororubber and silicone work and producing clean, uniform sample sheets.

How is heating and temperature control done? +

A multi-zone thermal-oil circulation system keeps roll temperature stable and uniform by zone; roll temperature reaches up to 250°C; centralized control via a recessed color touchscreen.

Which materials and standards apply? +

Suited to mixing rubber, silicone, plastic raw materials and additives; samples are prepared to the standard corresponding to the subsequent test item.

Which options are supported? +

Roll temperature, roll-gap range, speed and safety devices can be configured as needed; customization follows rubber type and sheet-thickness requirements.

What is the lead time for standard models? +

Standard-model lead time is 3-8 weeks; custom configurations follow the contract lead time after options are confirmed; before signing, the technical team will confirm the configuration list and delivery schedule with you.

How are certification and after-sales service secured? +

The equipment carries CE, UL, ISO 9001 and other certifications and undergoes three-tier calibration before shipment with a calibration certificate included; after-sales support provides 2-hour emergency response, certified on-site engineers for installation and commissioning, a 1-year full-machine warranty and lifetime software upgrades.

Service & Support

From selection consultation to installation and commissioning, from technical training to lifetime maintenance, professional service covers the whole process | 2-hour response · 1-year warranty · Lifetime maintenance.

Response Time

2-Hour Emergency Response

Installation & Commissioning

Certified On-Site Engineers

Warranty

1-Year Full-Machine Warranty

Software Upgrades

Free Lifetime Upgrades

Mixing and sheeting with precision roll gap
±0.001mm

With 8″ chilled rolls, up to 250°C thermal-oil heating and ±0.001 mm LVDT roll-gap control, the QM300 two-roll mill serves rubber/silicone mixing and uniform sample-sheet preparation.

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