How to Add Lubricant Without Stopping Roots Vacuum Pump
Multiple Economic Losses From Shutdown Oil Refilling
Reduced production output: A medium Roots vacuum pump unit requires 15 to 40 minutes of downtime per refilling, resulting in 8 to 16 hours of lost effective production every month;
Accelerated aging of consumables and equipment: Frequent startup and shutdown impact motors, oil seals and synchronous gears, shortening spare part replacement cycles;
Higher labor maintenance costs: Production lines equipped with multiple parallel vacuum pumps demand extra working hours for inspection and shutdown refilling;
Risk of scrapped products: Interruption of vacuum processes such as coating and metallurgical treatment directly causes entire batches of raw materials to be discarded.
Comparison Table of Shutdown Losses Across Industries
| Application Scenario | Matching Equipment | Single Downtime Duration | Monthly Production Loss |
|---|---|---|---|
| PV & Semiconductor Coating | Roots vacuum pump unit | 35–40 mins | 12–16 hours |
| Fine Chemical Vacuum Distillation | Oil-lubricated Roots booster pump | 20–30 mins | 9–12 hours |
| Powder Metallurgy Sintering Furnace | Heavy-duty industrial Roots vacuum pump | 15–25 mins | 8–10 hours |
| Pharmaceutical Freeze Drying & Food Packaging | Lightweight Roots vacuum pump | Within 15 mins | 5–7 hours |
Technical Principle of Pressure Balance Modular Retrofit Kit
Core Design Logic of Retrofit
- Machined from polytetrafluoroethylene, the oil cup resists high temperature and weak corrosive gas without volatile impurities contaminating vacuum systems. Its storage capacity is three times larger than original standard cups, greatly reducing refilling frequency and maintenance workload.
- Isolation Ball Valve Installed Under Oil CupThe valve remains open during normal production to maintain pressure balance among gearbox, oil reservoir and pump chamber. When oil replenishment is needed, close the valve to isolate negative pressure, unscrew the top threaded cap and add lubricants safely without halting production.
- Pressure Balance Pipeline & Sealed ConnectorsStainless steel seamless pipes are matched with fluororubber gaskets to prevent air leakage and deterioration of ultimate vacuum. Standard thread interfaces avoid cutting or modification of the original pump housing, enabling single-worker on-site installation within one hour.
Standard Operation Steps for Online Oil Refilling
Confirm the Roots vacuum pump operates stably with normal front-end production;
Rotate the handle to close the isolation ball valve under the oil cup and cut off negative pressure circulation;
Unscrew the top sealing cap and add industrial vacuum lubricant to the marked scale on the sight window;
Tighten the top cap fully, then slowly open the isolation valve to restore pressure communication;
Observe a stable oil level without rapid drop, which means online refilling is finished.
Performance Comparison: Original Structure VS Export Retrofit Kit
Drawbacks of Factory Original Lubrication Structure
No pressure balance pipeline, permanent pressure differential exists during pump operation;
Small built-in oil cup with limited capacity, requiring frequent refilling;
No independent cut-off valve, opening the filler port during operation is strictly prohibited.
Unique Advantages of Export-oriented Non-stop Refitting Kit
Pressure balance pipeline thoroughly solves the problem of lubricant flowing back into the pump chamber;
PTFE oil cup adapts to high-temperature and dusty overseas working environments;
Independent isolation valve allows atmospheric oil refilling while the vacuum unit keeps running;
Modular assembly fits all domestic export Roots vacuum pumps, deliverable as supporting accessories together with complete units.
Measurable Benefits for Overseas B2B Buyers After Retrofit
Improve Operating Rate of Continuous Production Lines
Extend Service Life of Core Pump Components
The wear rate of synchronous gears and rolling bearings drops by 40%;
The replacement cycle of mechanical oil seals and shaft sleeves is doubled;
Surge starting current of motors is minimized, lowering the frequency of electrical failures.
Wide Compatibility With Global Industrial Vacuum Scenarios
Electronics & Semiconductor: Vacuum coating, monocrystalline furnaces, PV lamination negative pressure systems;
Fine Chemical Industry: Vacuum drying, resin impregnation, solvent degassing complete equipment;
Metallurgical Heat Treatment: Vacuum quenching furnaces, powder metallurgy sintering vacuum units;
Food & Pharmaceutical Industry: Lyophilizers, API negative extraction equipment, sterile vacuum packaging lines;
Composite Materials: Carbon fiber and fiberglass vacuum forming devices.
Flexible OEM Supporting Service for Roots Blower Manufacturers
Customizable oil cup size, pipeline length and valve specifications based on different pump models;
Support printing customer’s brand LOGO and English operation labels for private label export;
Available in single-piece retail or full-container bulk supply, equipped with complete English installation manuals and technical drawings.
Simultaneously Cut Labor Workload and Lubricant Consumption
Common Technical & Export Consultations From Overseas Clients
One-stop Supporting Solutions for Global Purchasers
Cost Advantages of Bundled Purchase (Complete Pump + Retrofit Kit)
Pre-install the non-stop oil refitting kit during production of new export Roots vacuum pumps for direct commissioning after delivery;
Supply independent kits for upgrading existing old pumps to lower procurement thresholds;
Tiered preferential prices for full-container bulk orders, shortening delivery cycles to 7–15 working days.
Full-range Matching Maintenance Spare Parts Supply
Industrial barreled vacuum lubricants that meet sea freight export standards;
Original replacement spare parts: fluororubber oil seals, synchronous gears, rolling bearings;
Vacuum pipeline filters, oil-gas separators, cooling pipe assemblies;
Intelligent monitoring accessories: vacuum pressure transmitters, liquid level alarm sensors.
