KJ GROUP MSK-MR-100A Electric Rolling Mill

Overview

The KJ GROUP MSK-MR-100A Electric Rolling Mill is a precision-engineered laboratory-scale cold rolling system designed for controlled thickness reduction and density enhancement of thin-sheet materials in R&D environments. It operates on the principle of two counter-rotating hardened steel rolls applying uniform compressive force to deform ductile metallic or composite foils—without heating—thereby enabling microstructural refinement, grain alignment, and improved electrode density critical for electrochemical performance. This instrument is widely deployed in battery material development laboratories for calendering cathode and anode coatings on current collectors (e.g., Al foil, Cu foil), as well as in metallurgy research for preparing standardized specimens of precious metals (Au, Ag), non-ferrous alloys (Cu, Al), and functional thin films prior to XRD, SEM, or electrochemical testing.

Key Features

• Bi-directional AC motor drive (forward/reverse) enables immediate roll reversal during operation—facilitating rapid material recovery and process interruption without mechanical disassembly.
• High-precision gear-driven transmission ensures synchronous rotation and minimal torque fluctuation across the full speed range, contributing to consistent roll gap stability and repeatability.
• Hardened alloy steel rolls (Ø96 mm diameter) with surface hardness exceeding HV900 and radial runout limited to ≤0.004 mm guarantee dimensional integrity and long-term wear resistance under repeated loading cycles.
• Optically transparent polycarbonate safety guard fully encloses the nip zone, meeting CE-mandated operator protection requirements while permitting real-time visual monitoring of feed behavior and surface deformation.
• Manually adjustable micrometer-based roll gap mechanism—calibrated and verified using supplied dial indicators and feeler gauges—allows sub-micron incremental adjustment with traceable setting reproducibility.

Sample Compatibility & Compliance

The MSK-MR-100A accommodates foils and laminates up to 90 mm wide and 2 mm thick, including but not limited to lithium transition metal oxide cathodes (NMC, LFP), graphite/Si anodes, metallic current collectors, conductive polymer composites, and noble metal foils. Its mechanical design complies with EN 61000-6-2 (immunity) and EN 61000-6-4 (emission) standards, and it carries full CE marking for safe use within the European Economic Area. While not classified as GMP-grade equipment, its construction supports GLP-aligned documentation practices—roll gap settings, motor direction, and operational duration can be manually logged to satisfy internal audit requirements for material processing traceability.

Software & Data Management

The MSK-MR-100A is a stand-alone electromechanical instrument with no embedded microcontroller or digital interface; therefore, it does not include proprietary software, data logging, or remote control capability. All operational parameters—including roll gap, feed orientation, pass count, and motor direction—are set and recorded manually. Users are advised to integrate external metrology tools (e.g., digital micrometers, thickness gauges per ASTM E345 or ISO 4287) and maintain standardized lab notebooks or LIMS entries to ensure compliance with ISO/IEC 17025 documentation protocols. For automated workflows, third-party PLC integration is possible via dry-contact I/O signals (optional retrofit).

Applications

• Electrode calendering for Li-ion battery R&D: optimizing porosity, electronic conductivity, and interfacial contact resistance in coated electrodes.
• Preparation of uniform metal foils for tensile testing (ASTM E8/E8M) or electrical resistivity measurement (ASTM B193).
• Densification of sintered ceramic or metal-polymer composite tapes prior to sintering or lamination.
• Thickness standardization of reference samples used in X-ray fluorescence (XRF) calibration or beta-backscatter thickness analysis.
• Mechanical property pre-conditioning of shape-memory alloys and amorphous ribbons prior to thermal cycling or magnetic characterization.

FAQ

What is the recommended maintenance schedule for the MSK-MR-100A rolling mill?
Lubrication of gear train and roll bearings is required every 200 operating hours using ISO VG 68 mineral oil. Roll surface inspection for scratches or localized wear should occur before each high-precision session.
Can the MSK-MR-100A process materials at elevated temperatures?
No—it is strictly a cold rolling system. No heating elements or temperature-controlled rolls are integrated. Thermal processing must be performed separately prior to or after rolling.
Is the roll gap resolution traceable to national standards?
The micrometer adjustment mechanism is factory-calibrated against NIST-traceable gauge blocks. Users may verify accuracy using the included dial indicators and certified feeler gauges per ISO 10791-6.
Does the CE marking cover electromagnetic compatibility (EMC) and low-voltage directives?
Yes—the CE declaration of conformity explicitly references Directive 2014/30/EU (EMC) and Directive 2014/35/EU (LVD), with test reports available upon request from KJ GROUP’s technical support team.
Are replacement rolls available with alternative surface finishes or coatings?
Standard rolls feature ground-and-polished tool steel (D2 equivalent). Custom rolls with CrN or DLC coatings for enhanced corrosion resistance or reduced adhesion are available as OEM options—lead time and minimum order quantities apply.