KYKY FF-40/25 Compact Turbomolecular Pump
| Brand | KYKY |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Type | Oil-Free Turbomolecular Vacuum Pump |
| Pumping Speed (N₂) | 25 L/s |
| Ultimate Pressure | 1×10⁻⁴ Pa |
| Inlet Flange | ISO-KF DN40 |
| Outlet Flange | ISO-KF DN16 |
| Maximum Continuous Forepressure (N₂) | 500 Pa |
| Max Instantaneous Forepressure (N₂) | 1000 Pa |
| Compression Ratio (N₂) | ≥1×10⁶ |
| Rated Rotational Speed | 36,000 rpm |
| Startup Time | ≤3 min |
| Cooling Method | Air-Cooled |
| Power Supply | DC 24 V or AC 220 V |
| Max Power Consumption | 70 W |
| Weight | 3 kg |
| Compatible Controller Models | TD-25, TCP-100, TC-100 |
| Recommended Forepump Speed | 0.5–1 L/s |
Overview
The KYKY FF-40/25 is a compact, oil-free turbomolecular vacuum pump engineered for integration into analytical and research-grade vacuum systems requiring clean, high-throughput pumping performance in ultra-high vacuum (UHV) regimes. Based on the principle of momentum transfer via high-speed rotating blades (typically titanium-aluminum alloy), the pump accelerates gas molecules from the inlet toward the exhaust through sequential stages of rotor and stator blades operating at 36,000 rpm. Its design adheres to fundamental kinetic theory of gases—optimized blade geometry ensures efficient molecular drag across a broad range of light (H₂, He) and heavy (Ar, N₂) species, delivering consistent pumping speeds and compression ratios critical for residual gas analysis and surface-sensitive applications. With an ultimate pressure of 1×10⁻⁴ Pa and continuous forepressure tolerance up to 500 Pa, the FF-40/25 bridges the operational gap between roughing pumps and UHV systems, eliminating hydrocarbon contamination while maintaining thermal and mechanical stability under prolonged duty cycles.
Key Features
- Compact, lightweight architecture (3 kg) with ISO-KF DN40 inlet and DN16 outlet—designed for space-constrained instrument integration including mass spectrometers, XPS chambers, and thin-film deposition tools.
- Dual-power compatibility: supports both DC 24 V (ideal for portable or battery-backed systems) and AC 220 V operation, enabling flexible deployment across benchtop, mobile, and OEM platforms.
- Air-cooled thermal management eliminates need for external water lines or chillers—reducing system complexity and maintenance overhead without compromising rotor thermal stability.
- Low-vibration rotor dynamics (<0.5 µm RMS displacement at full speed) minimize micro-mechanical coupling into adjacent sensitive optics or detectors.
- High compression ratio (>1×10⁶ for N₂ and Ar; >1×10² for H₂ and He) ensures effective isolation of process chambers from foreline backstreaming, essential for contamination-sensitive processes such as surface science and semiconductor etching.
- Robust bearing system rated for ≥15,000 hours MTBF under nominal load conditions, compliant with ISO 28580 vibration and noise emission standards for laboratory equipment.
Sample Compatibility & Compliance
The FF-40/25 is compatible with inert, non-corrosive, and non-condensable gases typical in UHV environments—including N₂, Ar, He, H₂, O₂, and CO. It is not suitable for vapors, solvents, or reactive halogenated species without upstream cold traps or chemical scrubbers. The pump meets CE marking requirements for electromagnetic compatibility (EMC Directive 2014/30/EU) and low-voltage safety (LVD Directive 2014/35/EU). Its mechanical construction conforms to ISO 3529-2 for vacuum component dimensional interchangeability and ISO 21360-1 for vacuum pump performance testing methodology. While not intrinsically certified for hazardous locations, its oil-free operation supports GLP-compliant vacuum integrity logging when paired with validated controllers (e.g., TD-25 with audit-trail firmware).
Software & Data Management
The FF-40/25 operates in conjunction with KYKY’s TD-25, TCP-100, or TC-100 series controllers—each providing RS-485 Modbus RTU or optional Ethernet/IP interface for integration into SCADA or LabVIEW-based monitoring systems. Real-time telemetry includes rotational speed, bearing temperature, power draw, and fault status (e.g., overtemperature, overspeed, phase loss). Controller firmware supports configurable ramp profiles, soft-start sequencing, and event-triggered data logging aligned with ISO/IEC 17025 documentation requirements. When deployed in regulated environments (e.g., materials characterization labs under FDA 21 CFR Part 11), controller audit trails—timestamped, user-identified, and non-erasable—can be exported in CSV or XML format for traceability and QA review.
Applications
- Physical vapor deposition (PVD) and sputtering systems requiring rapid pump-down and stable base pressure during film nucleation.
- Surface analysis instrumentation—including Auger electron spectroscopy (AES), X-ray photoelectron spectroscopy (XPS), and low-energy electron diffraction (LEED)—where hydrocarbon-free vacuum is mandatory.
- Ion beam etching and reactive ion etching (RIE) platforms in microfabrication, leveraging high N₂ and Ar pumping efficiency.
- Accelerator beamline vacuum sections where low outgassing and minimal magnetic signature are critical.
- Research-scale thermal evaporation and molecular beam epitaxy (MBE) systems demanding reproducible, low-vibration vacuum environments.
- Solar cell coating lines and optical thin-film manufacturing where uptime, power efficiency, and ISO-KF interoperability reduce integration risk.
FAQ
What is the recommended forepump pairing for optimal performance?
A rotary vane or diaphragm pump with 0.5–1 L/s pumping speed is advised; ensure forepressure remains ≤500 Pa during continuous operation.
Can the FF-40/25 be mounted vertically or upside-down?
Yes—its balanced rotor assembly and sealed bearing design permit installation at any orientation without performance degradation or lubricant migration risk.
Is helium leak testing supported directly on this pump?
Helium-specific detection requires integration with a mass spectrometer leak detector; however, the pump’s high He compression ratio (≥1×10²) enhances signal-to-noise in downstream residual gas analyzers.
Does the pump require periodic oil changes or consumable replacement?
No—being fully oil-free, it contains no lubricants requiring servicing; only routine inspection of cooling fins and electrical connections is recommended per ISO 10816-3 vibration monitoring guidelines.
How does ambient temperature affect startup time and ultimate pressure?
At 25°C ambient, startup time is ≤3 minutes; above 40°C, thermal throttling may extend ramp time by up to 30%, though ultimate pressure remains unaffected within specified operating range (15–40°C).

