Kashiyama MU1200X Oil-Free Scroll Vacuum Pump

Overview

The Kashiyama MU1200X is a high-capacity, oil-free scroll vacuum pump engineered for continuous-duty laboratory and pilot-scale industrial applications requiring clean, hydrocarbon-free vacuum generation. Based on Kashiyama’s proprietary dual-stage scroll mechanism, the MU1200X achieves ultimate pressures down to 0.5 Pa while maintaining stable pumping performance across variable load conditions — from rough vacuum (10⁵–10² Pa) to medium vacuum (10²–10⁻¹ Pa). Unlike rotary vane or diaphragm pumps, its dry-scroll architecture eliminates oil vapor backstreaming, making it suitable for vacuum environments where sample contamination, solvent compatibility, or regulatory compliance (e.g., ISO 8573-1 Class 0 air purity equivalency for process gases) are critical. The pump integrates seamlessly into vacuum systems for freeze drying, mass spectrometry sample introduction, vacuum ovens, thin-film deposition pre-pumping, and analytical instrument evacuation.

Key Features

• Dual-stage oil-free scroll design ensures zero hydrocarbon emission and eliminates routine oil changes or mist filtration.
• Robust cast-iron housing and precision-machined aluminum alloy scrolls provide thermal stability and mechanical longevity under sustained operation.
• Integrated cooling water jacket with pressure-sensing interlock (0.2–0.5 MPa gauge range) prevents overheating during extended duty cycles.
• NW100 inlet and NW40 outlet flanges conform to ISO-KF standards, enabling rapid, leak-tight integration with common vacuum tubing and instrumentation manifolds.
• Three-phase motor (4.4 kW, 200–220 V, 50/60 Hz) delivers consistent torque and low-vibration operation; voltage tolerance ±10% supports stable performance in fluctuating utility grids.
• Fluorinated lubricant (total volume 0.35 L) is chemically inert toward aggressive solvents (e.g., acetone, ethanol, chlorinated hydrocarbons), extending service intervals beyond 10,000 operating hours under typical lab conditions.

Sample Compatibility & Compliance

The MU1200X is compatible with non-corrosive, non-condensable, and mildly aggressive vapors typical of pharmaceutical, materials science, and analytical chemistry workflows. It is not rated for direct pumping of halogenated solvents (e.g., CCl₄), strong oxidizers (e.g., NO₂, O₃), or particulate-laden streams without upstream filtration. The pump meets JIS B 8341-1:2019 (vacuum pump performance testing) and conforms to CE machinery directive 2006/42/EC when installed with appropriate safety guards and electrical isolation. Its oil-free operation supports GLP-compliant documentation requirements for vacuum-critical processes, including those referenced in USP Analytical Instrument Qualification and ASTM E2656-20 Standard Guide for Vacuum System Integrity Testing.

Software & Data Management

While the MU1200X operates as a standalone analog-controlled pump (no built-in digital interface), it is fully compatible with third-party vacuum system controllers via standard 4–20 mA analog input/output signals for pressure feedback and speed modulation. Optional external PLC integration enables automated start/stop sequencing, cooling water flow monitoring, and fault logging aligned with FDA 21 CFR Part 11 audit trail requirements when paired with validated SCADA platforms. All operational parameters — including motor current (6–18 A), coolant flow rate (2–3 L/min), and inlet pressure — are accessible via front-panel analog meters and terminal block connections for external data acquisition.

Applications

• Pre-evacuation and maintenance of medium vacuum in freeze-dryer chambers (≤0.5 Pa) for lyophilization of biologics and diagnostics.
• Backing pump for turbomolecular or diffusion pumps in surface analysis systems (XPS, AES) and electron microscopy.
• Vacuum supply for solvent removal in rotary evaporators handling heat-sensitive organic compounds.
• Process vacuum for vacuum-assisted resin transfer molding (VARTM) and degassing of polymer precursors.
• Environmental test chambers requiring repeatable, contamination-free vacuum cycling between 10⁵ and 10⁻¹ Pa.

FAQ

What is the recommended maintenance interval for the MU1200X?
Routine inspection (coolant lines, electrical connections, scroll alignment) is advised every 2,000 operating hours; fluorinated oil replacement is required only after 10,000 hours or if moisture ingress is detected.
Can the MU1200X be used with a nitrogen purge system?
Yes — the pump features an optional RC 3/8″ N₂ purge port (0.1–0.7 MPa gauge) to suppress condensation and extend scroll life in high-humidity environments.
Is the MU1200X compliant with ISO Class 0 clean air requirements?
As an oil-free device, it meets ISO 8573-1:2010 Class 0 equivalency for solid particle and oil aerosol content when operated within specified inlet pressure and temperature limits.
What cooling water specifications must be maintained?
Minimum flow: 2 L/min at ≥0.2 MPa gauge pressure; maximum allowable pressure: 0.5 MPa gauge; temperature range: 10–25 °C.
Does the pump include integrated overload or overtemperature protection?
Yes — thermal cut-off switches and water-pressure interlocks are factory-installed and wired to the main control circuit per IEC 60204-1 safety standards.