Kashiyama SDE-TX Series Oil-Free Dry Vacuum Pump

Overview

The Kashiyama SDE-TX Series represents a high-reliability, oil-free dry vacuum pump platform engineered for continuous-duty operation in demanding laboratory, pilot-scale, and light industrial vacuum environments. Based on Kashiyama’s proprietary vertical-axis rotary screw architecture, the SDE-TX eliminates lubricating oil from the compression chamber—ensuring contamination-free vacuum generation essential for solvent recovery, thin-film deposition, vacuum drying, and analytical sample preparation. Unlike scroll or diaphragm pumps, the SDE-TX employs precision-machined, intermeshing twin screws rotating in precise synchronization within a thermally stable, corrosion-resistant housing. This design delivers stable volumetric displacement across a wide pressure range (from atmosphere down to ≤0.5 Pa), with minimal pulsation and high volumetric efficiency. The vertical orientation of the screw assembly inherently resists particulate settling and facilitates self-draining of condensables—critical for handling vapors, mildly corrosive gases, or solvent-laden process streams without internal fouling or performance degradation over time.

Key Features

• Oil-free dry operation: No hydrocarbon or silicone oil contamination—compliant with ISO 8573-1 Class 0 air/vacuum purity requirements.
• Vertical rotary screw design: Minimizes particle accumulation and enables passive drainage of condensates; enhances long-term stability in humid or vapor-rich applications.
• Corrosion-resistant construction: Housing and rotor surfaces treated or fabricated from materials compatible with aggressive process gases (e.g., HCl, Cl₂, SO₂, organic solvents)—specific material grade (e.g., Ni-resist, anodized aluminum, or Hastelloy-coated variants) selected per model and application.
• Thermally optimized motor integration: Direct-coupled, IE3-class high-efficiency 3-phase motors with built-in thermal protection; voltage configurable for global power grids (200–220 V or 380–480 V, 50/60 Hz).
• Modular footprint scalability: SDE-TX models span 1,500–45,000 L/min nominal pumping speed, allowing selection matched precisely to chamber volume, outgassing rate, and process cycle time requirements.
• No integrated N₂ purge system: Designed for standalone operation; optional external purge kits available for enhanced sealing or reactive gas service upon request.

Sample Compatibility & Compliance

The SDE-TX series is validated for use with non-explosive, non-oxygen-enriched process gases—including air, nitrogen, argon, CO₂, and common organic vapors (e.g., acetone, ethanol, ethyl acetate). It is not rated for use with oxygen concentrations >23% vol, hydrogen, acetylene, or highly polymerizing monomers without prior engineering review. While Kashiyama does not certify individual units to specific international standards at point of sale, the mechanical design conforms to fundamental safety and electromagnetic compatibility principles aligned with IEC 60034 (rotating machinery), IEC 61000-6-3 (EMC emissions), and ISO 10816-3 (vibration severity for industrial pumps). For regulated environments (e.g., pharmaceutical R&D, GLP labs), users may integrate the pump into validated systems meeting FDA 21 CFR Part 11 data integrity requirements via compatible external controllers and audit-trail-capable SCADA interfaces.

Software & Data Management

The SDE-TX operates as a stand-alone mechanical vacuum source and does not include embedded digital control or firmware. Operation is managed via external motor starters, variable-frequency drives (VFDs), or PLC-based vacuum sequencing systems. Analog 0–10 V or 4–20 mA feedback signals (for inlet pressure, motor current, or bearing temperature) are available on higher-tier models for integration into centralized lab automation platforms (e.g., LabVIEW, DeltaV, or Siemens Desigo CC). Raw operational logs—such as runtime hours, thermal event history, and motor load profiles—must be captured externally. No proprietary software suite is supplied; however, Kashiyama provides comprehensive technical documentation (including dimensional drawings, torque specifications, and maintenance intervals) in English and Japanese for integration into facility maintenance management systems (CMMS).

Applications

• High-purity vacuum drying of hygroscopic or thermally sensitive compounds in pharmaceutical and fine chemical synthesis.
• Evaporation and distillation under reduced pressure where oil backstreaming would compromise product integrity.
• Backing for high-vacuum systems (e.g., turbomolecular or diffusion pumps) in surface science instrumentation (XPS, AES, UHV chambers).
• Vacuum impregnation of porous materials (ceramics, composites) with resins or functional coatings.
• Process vacuum in pilot-scale coating lines (PVD, CVD precursors) where hydrocarbon-free base pressure is mandatory.
• Environmental testing chambers requiring rapid evacuation and stable low-pressure hold (<1 Pa) over extended durations.

FAQ

Is the SDE-TX suitable for vacuum ovens used in GMP-compliant pharmaceutical manufacturing?
Yes—provided the specific model is selected for required pumping speed and ultimate pressure, and integrated into a validated system with documented calibration, preventive maintenance, and change-control procedures.
Does the pump require periodic oil changes or lubrication of the compression chamber?
No—the SDE-TX is a true oil-free dry pump; only gearbox oil (if equipped) and motor grease require scheduled replacement per Kashiyama’s maintenance manual.
Can it handle water vapor or solvent condensate without damage?
Yes—the vertical screw orientation and optional condensate drain port allow safe handling of saturated vapor streams; however, continuous liquid ingestion must be prevented via upstream traps or chillers.
What is the expected service life under continuous 24/7 operation?
With proper cooling, inlet filtration, and adherence to maintenance intervals, mean time between overhauls exceeds 20,000 operating hours for most SDE-TX configurations.
Are CE, UL, or UKCA markings applied to shipped units?
Units are supplied without region-specific conformity markings; end-users or authorized distributors are responsible for local regulatory compliance verification and marking as required by destination market legislation.