KASHIYAMA Neodry36C/E Air-Cooled Oil-Free Dry Rotary Vane Vacuum Pump

Overview

The KASHIYAMA Neodry36C/E is an air-cooled, oil-free dry rotary vane vacuum pump engineered for stable, low-maintenance operation in analytical laboratories, semiconductor process support, coating systems, and R&D environments requiring clean, hydrocarbon-free vacuum. Unlike traditional oil-lubricated rotary vane pumps, the Neodry36C/E employs a precision-machined, self-aligning vane system with non-contact operation—vanes rotate without mechanical contact against each other or the stator wall—eliminating wear-related degradation and eliminating oil vapor backstreaming. This design ensures long-term dimensional stability of the compression chamber and intrinsic compliance with ISO 8573-1 Class 0 (oil-free air) requirements. The pump achieves ultimate pressures down to ≤1 Pa under standard conditions and delivers a nominal pumping speed of 36 m³/h (600 L/min) at atmospheric inlet pressure, making it suitable for rough vacuum applications ranging from freeze drying and vacuum ovens to mass spectrometry sample preparation and thin-film deposition pre-evacuation.

Key Features

• True oil-free dry operation: No lubricating oil in the pumping chamber—eliminates risk of sample contamination and avoids oil regeneration or disposal procedures.
• Air-cooled thermal management: Integrated high-efficiency fan and optimized heat-dissipating housing eliminate dependency on external cooling water, reducing infrastructure complexity and footprint.
• Gas ballast option (Neodry36E): Enables continuous handling of condensable vapors—including water vapor up to 350 g/h when fully engaged—by introducing inert purge gas (typically N₂) into the compression stage to lower partial pressure and prevent condensation inside the pump.
• Extended service life: Non-contact vane dynamics and corrosion-resistant internal materials enable maintenance intervals of up to 36 months when operated exclusively with dry air or nitrogen—significantly lowering total cost of ownership (TCO) over time.
• Low-noise architecture: Acoustic enclosure design and balanced rotor assembly limit operational noise to ≤62 dB(A), supporting integration into shared laboratory spaces without acoustic isolation.
• Flexible power compatibility: Supports single-phase (100–115 V or 200–240 V) and three-phase (200–240 V) inputs at 50/60 Hz—enabling global deployment without hardware modification.

Sample Compatibility & Compliance

The Neodry36C/E is compatible with non-corrosive, non-explosive gases including ambient air, nitrogen, argon, and helium. It is not rated for solvent vapors, halogenated compounds, or acidic gases (e.g., HCl, Cl₂) without supplemental trapping or scrubbing. As a Class 0 oil-free vacuum source per ISO 8573-1, it meets purity requirements for applications governed by USP , ISO/IEC 17025, and GLP-compliant analytical workflows. While the pump itself does not constitute a hermetically sealed system (per manufacturer specification), its NW-flanged ports ensure repeatable, leak-tight connections when paired with ISO-KF compliant fittings and elastomer seals (e.g., Viton or EPDM). CE marking confirms conformity with EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU.

Software & Data Management

The Neodry36C/E operates as a standalone analog device with no embedded digital controller or communication interface. However, it integrates seamlessly into automated vacuum systems via external pressure controllers (e.g., MKS Baratron or Pfeiffer TPG300 series) and programmable logic controllers (PLCs). For audit-ready environments, users may log operational parameters—including runtime hours, on/off cycles, and external vacuum gauge readings—using third-party SCADA platforms compliant with FDA 21 CFR Part 11 (electronic records and signatures) when paired with validated data acquisition modules. Routine calibration of connected gauges—and documentation of pump maintenance events—is recommended to maintain traceability in GMP or ISO 17025-accredited labs.

Applications

• Rough vacuum generation for freeze dryers and vacuum ovens in pharmaceutical and biotech labs.
• Pre-evacuation of sputtering, evaporation, and CVD chambers prior to high-vacuum pumping stages.
• Support vacuum for electron microscopy specimen preparation (critical point drying, carbon/metal coating).
• Vacuum degassing of resins, adhesives, and composites in materials science research.
• Gas evacuation in environmental test chambers and accelerated aging systems.
• Backing pump for turbomolecular or diffusion pumps in multi-stage vacuum architectures.

FAQ

Is the Neodry36C/E certified for use in explosion-proof environments?

No—the pump is not ATEX- or IECEx-certified and must not be operated in classified hazardous areas without additional engineering controls.
Can the gas ballast function be retrofitted to the Neodry36C model?

No—gas ballast is a factory-installed option specific to the Neodry36E configuration and cannot be added post-purchase.
What is the expected lifetime of the vanes under typical lab usage?

With continuous operation at ≤80% of maximum duty cycle and pumping only dry, non-reactive gases, vane service life exceeds 15,000 operating hours before replacement is required.
Does the pump require periodic oil changes or filter replacements?

No—there is no pump oil, mist filter, or exhaust filter; routine maintenance is limited to external cleaning, fan inspection, and verification of mounting bolt torque.
Is the Neodry36E compatible with vacuum controllers that support RS-485 or Modbus?

Not natively—the pump lacks onboard electronics; integration requires external relay-based control or a motor starter with analog/digital I/O capability.