Kashiyama MU600X Oil-Free Scroll Vacuum Pump

Overview

The Kashiyama MU600X is a high-reliability, oil-free scroll vacuum pump engineered for continuous-duty laboratory and pilot-scale applications requiring clean, hydrocarbon-free vacuum generation. Based on Kashiyama’s proven dual-stage scroll architecture, the MU600X achieves ultimate pressures down to 0.5 Pa without oil lubrication in the pumping chamber—eliminating risk of backstreaming, sample contamination, or oil degradation under reactive or solvent-laden process conditions. Its modular design integrates the MU100X scroll pump head with the MB600 base unit, enabling scalable performance while maintaining compact footprint and mechanical stability. The pump operates on a fixed-speed, three-phase induction motor (0.5 kW, 200–220 V, 50/60 Hz), delivering consistent pumping speed across its rated range of 0–10 SLM (standard liters per minute) under ISO 21360-1 reference conditions. Designed and manufactured in Japan, the MU600X conforms to JIS B 8341-1 for rotary vacuum pumps and incorporates precision-machined aluminum alloy housing for thermal management and vibration damping.

Key Features

• Dry scroll technology ensures zero oil vapor emission—critical for mass spectrometry sample introduction, thin-film deposition, and ultra-high-purity gas handling.
• NW80 inlet flange and NW40 outlet flange comply with ISO-KF standard dimensions for seamless integration into existing vacuum manifolds and custom vacuum chambers.
• Integrated nitrogen purge interface (RC 3/8″ with coupler) supports active dilution and seal protection when processing mildly corrosive, acidic, or condensable vapors—per Kashiyama Application Note AN-MU600X-02.
• Water-cooled stator assembly maintains stable scroll temperature during extended operation; requires 2–3 L/min cooling water flow at 0.2–0.5 MPa (gauge) pressure.
• Motor-driven acceleration/deceleration control (~10 s ramp-up, ~5 s ramp-down) minimizes mechanical stress and enables synchronized start/stop with upstream process equipment.
• Fluorinated oil lubrication (0.1 + 0.1 L total) is confined to the motor and drive train only—fully isolated from the vacuum path per ISO 8573-1 Class 0 air purity requirements.

Sample Compatibility & Compliance

The MU600X is suitable for non-reactive and low-vapor-pressure process gases including N₂, Ar, He, and dry air. For operation with moisture-laden, acidic (e.g., HCl, SO₂), or organic solvent vapors (e.g., acetone, ethanol), Kashiyama mandates continuous nitrogen purge at 0–10 SLM to prevent scroll surface corrosion and internal condensation. The pump meets CE marking requirements under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. It supports GLP-compliant operation when integrated with validated control systems and audit-trail-capable vacuum monitoring software. While not certified for ATEX Zone 1/2 use, it may be installed in classified areas when paired with appropriate barrier purging and grounding protocols per IEC 60079-14.

Software & Data Management

The MU600X operates as a standalone analog-controlled pump and does not include embedded digital controllers or communication interfaces (e.g., RS-485, Modbus, or Ethernet). However, it is fully compatible with third-party vacuum system controllers (e.g., Pfeiffer Vacuum VACOMASS, Edwards nXT series) via analog 0–10 V or 4–20 mA setpoint and feedback signals. For regulatory environments governed by FDA 21 CFR Part 11, users must implement external data acquisition systems with electronic signature capability and audit trail logging for operational parameters—including run time, current draw, cooling water flow status, and purge gas pressure. Kashiyama provides full electrical schematics, dimensional drawings, and maintenance manuals (EN/JP) upon request to support IQ/OQ documentation.

Applications

• Primary roughing pump for turbomolecular and cryogenic high-vacuum systems in analytical instrumentation (e.g., SEM, XPS, RGA).
• Vacuum drying and degassing of polymers, pharmaceutical powders, and battery electrode slurries under inert atmosphere.
• Process vacuum for physical vapor deposition (PVD), sputtering, and electron-beam evaporation where hydrocarbon-free background is mandatory.
• Continuous evacuation of gloveboxes and inert-atmosphere reactors handling air-sensitive catalysts or organometallics.
• Lab-scale freeze-drying (lyophilization) systems requiring stable, low-maintenance rough vacuum between 1–100 Pa.

FAQ

Is the MU600X suitable for pumping solvent vapors?
No—unless operated with continuous nitrogen purge at recommended flow rates (up to 10 SLM) and maintained within ambient temperature limits (10–25 °C). Solvent condensation inside the scroll can cause mechanical seizure.
What is the expected service interval for fluorinated oil replacement?
Every 6,000 operating hours or 24 months—whichever occurs first—under normal load conditions. Oil analysis is recommended annually for mission-critical installations.
Can the pump be mounted vertically?
No—only horizontal mounting on a rigid, level surface is approved per Kashiyama Installation Manual MU600X-IM-EN Rev. 3.1.
Does the MU600X meet ISO 8573-1 Class 0 for compressed air purity?
Yes—the vacuum path contains no oil; the fluorinated oil is fully segregated from the pumped volume, satisfying Class 0 (oil-free) requirements for vacuum-side cleanliness.
What cooling water quality is required?
Deionized or softened water with conductivity < 100 µS/cm and hardness < 50 ppm CaCO₃ equivalent; particulate filtration ≤ 5 µm is mandatory to prevent heat exchanger fouling.