Anest IWATA ISP250 Oil-Free Scroll Vacuum Pump

Overview

The Anest IWATA ISP250 is a high-reliability, oil-free scroll vacuum pump engineered for continuous-duty laboratory and industrial applications requiring clean, dry, and hydrocarbon-free vacuum environments. Based on proven scroll compression technology, the ISP250 operates without lubricating oil—eliminating oil backstreaming, vapor contamination, and associated maintenance overhead. Its hermetically sealed scroll mechanism compresses gas through orbital motion between two interleaved spiral scrolls (one fixed, one orbiting), enabling smooth, pulseless suction, compression, and exhaust across a wide pressure range—from atmospheric pressure down to an ultimate vacuum of 1.6 Pa. Designed and manufactured in Japan, the ISP250 complies with IEC 60034-30-1 for IE3 motor efficiency standards and meets electromagnetic compatibility (EMC) requirements per EN 61000-6-3 and EN 61000-6-4. It is suitable for integration into analytical instrumentation, vacuum coating systems, accelerator beamlines, and gas recovery loops where process purity and long-term stability are critical.

Key Features

• Oil-free operation ensures zero hydrocarbon contamination—essential for surface science, mass spectrometry, and ultra-high-purity gas handling.
• Low-vibration, low-noise design (58 dBA at 1 m) enables installation in noise-sensitive environments including cleanrooms and shared lab spaces.
• Robust scroll architecture with minimal torque fluctuation delivers high mechanical reproducibility and extended service life under cyclic pressure loads.
• Air-cooled thermal management eliminates dependency on external cooling water, reducing infrastructure complexity and operational risk.
• KF25 (ISO-KF) inlet flange standardizes integration with common vacuum components and gauging systems.
• IE3 high-efficiency motor minimizes energy consumption while maintaining stable performance across voltage fluctuations (100–240 V AC, 50/60 Hz).
• Leak-tight construction with certified leakage rate ≤1×10⁻⁵ Pa·m³/s supports applications requiring strict gas containment, such as helium leak detection and rare gas recycling.

Sample Compatibility & Compliance

The ISP250 is compatible with non-corrosive, non-condensable gases—including air, nitrogen, argon, helium, and hydrogen—within ambient temperature limits of 10–40 °C. It is not rated for solvent vapors, acidic or alkaline process gases, or particulate-laden streams without upstream filtration. The pump conforms to ISO 21809-2 for vacuum equipment safety, EN 61000-6-2 for immunity, and RoHS Directive 2011/65/EU. When deployed in regulated environments (e.g., GLP-compliant analytical labs or GMP-controlled gas recovery units), its deterministic operational behavior and absence of consumables support audit-ready documentation under FDA 21 CFR Part 11 when paired with compliant control software.

Software & Data Management

While the ISP250 operates as a standalone unit with manual on/off control, it features analog output (0–10 V DC) for real-time monitoring of motor current—enabling integration into SCADA or PLC-based vacuum system controllers. Optional digital interface modules (e.g., RS-485 Modbus RTU) allow remote status reporting, runtime logging, and predictive maintenance alerts. All operational parameters—including cumulative run time and thermal event history—are retained in non-volatile memory for traceability. Firmware updates are performed via secure USB connection, with version logs and cryptographic signature verification supporting integrity validation during regulatory audits.

Applications

• Physical vapor deposition (PVD) systems: sputtering, electron-beam evaporation, and ion plating.
• Surface analysis tools: XPS, AES, and SIMS chambers requiring ultra-clean base pressures.
• Vacuum heat treatment and brazing furnaces operating in the 10⁻¹–10⁻² Pa range.
• Gas recirculation and recovery loops for helium, SF₆, and other specialty gases in research accelerators and synchrotron facilities.
• Helium leak detection systems where background signal suppression depends on low outgassing and minimal virtual leaks.
• Automated vacuum handling systems for semiconductor wafer transfer and flat-panel display manufacturing.
• Laboratory-scale vacuum ovens, freeze dryers, and degassing stations used in materials science and pharmaceutical development.

FAQ

Is the ISP250 suitable for pumping condensable vapors such as water or solvents?
No. The ISP250 is designed exclusively for dry, non-condensable gases. Condensable vapors may accumulate in the scroll chamber and impair compression efficiency or cause mechanical damage.
Can the pump be operated continuously at atmospheric pressure?
Yes. The scroll mechanism is engineered for uninterrupted duty from atmosphere to ultimate vacuum, including frequent pressure cycling—common in vacuum packaging and batch processing.
What maintenance intervals are recommended?
No scheduled oil changes or filter replacements are required. Annual inspection of inlet filter (if installed), mounting fasteners, and cooling fins is advised. Scroll wear is negligible under normal operating conditions; mean time between failures exceeds 20,000 hours.
Does the ISP250 meet ISO 8573-1 Class 0 for oil-free air quality?
Yes. As a true oil-free displacement pump with no internal lubrication, it satisfies ISO 8573-1:2010 Class 0 for total oil content (≤0.01 mg/m³), making it appropriate for critical vacuum processes where organic contamination must be excluded.
Is CE marking applied to this model?
Yes. The ISP250 carries full CE marking under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU, with technical documentation available upon request for end-user compliance verification.