New Developed SF6 Gas Reclaiming Machine, SF6 Gas Recovery & Storage Solution, For Electric Utility Industry
High-purity SF6 recovery for transformers & GIS
Compact design with low-temperature stability
Eco-friendly recycling and cost-saving operation
The newly developed SF6 Gas Reclaiming Machine is tailored for the evolving needs of the electric utility industry. It delivers high recovery efficiency, safely capturing and purifying SF6 gas for reuse. Its advanced treatment system removes harmful by-products, moisture, and particles, restoring gas purity to international standards. The purified gas can then be stored in cylinders for convenient handling and future use. Designed with portability and user-friendly controls, this machine is suitable for both substation maintenance and manufacturing sites. Its rugged build ensures long service life, while energy-efficient operation reduces environmental footprint. Utilities benefit from cost savings, improved equipment reliability, and compliance with environmental regulations.
Introduction
The REXON RNGR Series SF6 Gas Reclaiming and Refilling System is an advanced solution designed for efficient, safe, and environmentally responsible handling of sulfur hexafluoride (SF6) gas. Widely applied in gas-insulated switchgear (GIS), high-voltage circuit breakers, transformers, and power substations, this system integrates gas recovery, purification, drying, liquefaction, storage, evacuation, and refilling into one compact unit.
SF6 gas, while offering excellent insulation and arc-extinguishing properties, is costly and can decompose into harmful by-products under electrical stress. The RNGR Series ensures that contaminated gas is thoroughly purified, moisture-free, safely stored, and reused, helping companies achieve significant cost savings, equipment protection, and compliance with environmental regulations.
Applications
The RNGR Series is suitable for all SF6-filled equipment during:
Manufacturing and factory testing of electrical apparatus
Routine inspection and preventive maintenance
On-site installation and commissioning of GIS and HV circuit breakers
Substation operations and large-scale power grid servicing
Emergency recovery and treatment of leaking or contaminated SF6 gas
By implementing this system, operators can prevent SF6 losses, extend equipment lifetime, and minimize environmental impact.
Key Advantages
High-Efficiency Gas Recovery
Uses advanced vacuum pumping and compression technology for rapid and complete recovery of SF6 gas without leakage or waste.
Integrated Purification & Drying
Multi-stage filtration and adsorption units remove moisture, solid particles, oil traces, and acidic decomposition products, ensuring the reclaimed gas fully meets IEC and international industry standards.
Safe & Eco-Friendly Design
Sealed anti-leakage system prevents SF6 emissions into the atmosphere, supporting sustainable and environmentally compliant operations.
Compact & Mobile Structure
Skid-mounted or trailer-mounted options with heavy-duty casters make the unit flexible, space-saving, and ideal for on-site service.
Low-Temperature Reliability
Built-in temperature control and protective devices guarantee stable operation even in cold environments down to -20 °C.
User-Friendly Intelligent Control
PLC-based automatic system with real-time monitoring of vacuum degree, gas flow, and pressure. Provides simple touch-screen operation, automated alarms, and safe shutdown features.
Smart Maintenance System
Self-regenerating filter materials and heating system minimize replacement frequency, ensuring low maintenance costs and continuous reliability.
Durable & Reliable Performance
Equipped with world-class components such as high-quality compressors, vacuum pumps, and electrical parts, guaranteeing long service life under heavy-duty operation.
Customizable Configurations
Multiple models and capacities available, from compact service units to high-capacity reclaiming systems tailored for large substations and extensive SF6 applications.
Conclusion
With its multi-function integration, high efficiency, safety features, and eco-friendly design, the REXON RNGR Series SF6 Gas Reclaiming and Refilling System represents a complete solution for SF6 lifecycle management. It ensures maximum gas utilization, reduces operational costs, and supports global efforts to minimize greenhouse gas emissions while maintaining the highest standards of reliability and performance in the power industry.
1.Performance Data of the Device
| Type |
Liquefied Refrigeration, Air Cooled, Mobile Type |
| Ambient Temperature |
-10ºC~40ºC |
| Reclaiming |
Initial Pressure(MPa) |
0.8 |
| Final Pressure(MPa) |
≤0.053 |
| Time Required for 1m3(h/m3) |
≤0.4 |
| Refilling |
Initial Pressure(Pa) |
≤133 |
| Final Pressure(MPa) |
0.7 |
| Time Required for 1m3(h/m3) |
≤0.2 |
| Evacuating Times from 0.1MPa~113Pa(h/m3) |
≤0.25 |
| Limited Degree of Vacuum(Pa) |
≤10 |
| Vacuum Preservation (Pa/24 hours) |
≤400 |
| Annual Leakage Rate |
≤ 0.5% |
Purity of Reclaimed SF6 Gas |
Water content(PPM/V) |
≤40 |
| Oil(PPM/W) |
≤10 |
Storage Tank |
Mode of Storage |
Liquid State |
| Pressure(MPa) |
3.9 |
| Volume(L) |
300 |
| Stored Liquied Quantity(kg) |
300 |
| Mode of Liquefaction |
Refrigeration Liquefaction |
| Mode of Vaporization |
Electric Heating |
| Type of Dry-type filter Regeneration |
Vacuum-Heating |
| Power Supply |
380V, 50Hz |
| Overall Power Consumption(kW) |
≤12 |
| Sound Level dB(A) |
≤75 |
| Outside Dimension(mm) |
1970×1100×1630 |
| Weight of the Device(kg) |
≤1000 |
2.Performance Data of Main the Components
| SF6 Compressor |
Type |
|
Lub. Piston,Semi-hermetic |
| Theoretical Displacement |
m3/h |
22 |
| Max. Discharge Pressure |
MPa |
2.50 |
| Allowable Discharge Pressure |
MPa |
1.96 |
| Min. Allowable Suction pressure |
kPa |
53 |
| Max. Allowable Suction pressure |
MPa |
0.30 |
| Max. Discharge Temp. |
ºC |
130 |
| Lub. Oil |
|
46# Refri. Oil |
| Power Consumption |
kW |
3.0 |
| Power Source |
|
3Φ 380V 50 Hz |
| Vacuum Pump |
Pumping Speed |
m3/h |
90 |
| Ultimate Vacuum |
Pa |
≤5×10-1 |
| Lub. Oil |
|
PRO-100 Vacuum pump Oil |
| Power Consumption |
kW |
3.7 |
| Power Source |
|
3Φ 380V 50 Hz |
| Refrigeration Unit |
Nominal Refrigerating Capacity |
kcal/h |
4600 |
| Refrigerant |
|
R22 |
| Max. Capacity of Refrigerant |
kg |
25 |
| Lub. Oil |
|
46# Refri. Oil |
| Power Consumption |
kW |
2.32 |
| Power Source |
|
3Φ 380V 50 Hz |
| Tank |
Classification |
|
II |
| Designed Pressure |
MPa |
3.9 |
| Designed Temperature |
ºC |
50 |
| Volume |
L |
300 |
| Stored Liquied Quantity |
kg |
300 |
| liquefy Volume |
L |
40 |
| liquefy Liquied Quantity |
kg |
40 |
Refrigeration condition: Evaporation temperature - 10ºC; Condensation temperature 40ºC
The Main Components and Functions of The Device
The main functions of the device include compressor, vacuum pump, refrigeration system, dry filter regenerator, heater, purifier, filter, pipeline, valve, instrument, electrical control and structural parts, frame panel, running wheel and storage tank.
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For Lubricant Oil (hydraulic oil, turbine oil, gear oil, diesel, heating oil and so on)
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RECOMMEND OIL TESTERS:
Automatic Insulation Oil BDV Tester (for Lab Use) Series JKJQ-1
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Insulating Oil Dielectric Loss & Resistivity Tester Series RNJS
Automatic Oil Moisture Tester Model JKWS
Viscosity Tester Model RNJW
Density Tester Model RNMD
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Automatic Water Soluble Acid Value Tester Model RNSR-3
Automatic Portable Dew Point Meter Series ZA-DPM
Automatic Interfacial Tension Tester Series RNIT
Automatic Open Cup Flash Point Tester Model RNKS
Automatic Close Cup Flash Point Tester Model RNBS
Portable Oil Particle Counter Model LPC-P3
SF6 Synthesized Tester Model RN500SF6
SF6 Quantitative Gas Leakage Detector Model RTL-A
SF6 Gas Trace Moisture Tester Model RNSFS
SF6 Purity Analyzer Model RNSFC
SF6 Density Relay Calibration Tester Model RNSFJ
Transformer Turns ratio tester

Transformer Oil Filter Machine
Transformer Vacuum Pumping Set
Transformer Dry Air Generator

REXON Aftersales Services:
-We will help to arrange the transport and shipping for the machine to customer.
-We offer full set documents for customs clearance at customer's destination port.
-We will offer lifetime technical support for our equipment, free technical upgrade, free or chargeable spare parts supply, etc.
-We offer online service for customers 24 hours everyday. If you have any question while using our machine, you can contact us by online chat software, or by email, phone etc, we will get back to you very soon within 4 hours.
-We will also offer operation training for free in our factory and offer door-to-door service to send our engineer to your place for the machine's installation service and operation training if you need.
-Installation, Operation and Maintenance details will be in the operation manual booklet and videos which will be sent to you with machine.
-Rexon's guarantee time is two years for each of our equipment.

Chongqing Rexon Oil Purification Co., Ltd is a leading oil purifier manufacturer in China, which engages in developing, producing, selling a series of oil purifier such as transformer oil purifier, turbine oil purifier, engine oil purifier, lube oil purifier, cooking oil purifier and so on. We practiced in this line near 20 years, so we have a strong technology and gain rich experience. Our products have been exported to many countries, and get a high reputation.
Since the foundation of our company, under the duty of devoting our efforts to develop the advanced purifier for saving energy sources, adopting the advanced management like SUBI, and with the reliance on the strong technical force, advanced equipment of production, perfect quality check method, fast and outstanding after-sales service, our company has developed into a national big base specialized in producing oil purifier. Our products are outstanding because of its excellence in quality, stability in service, and diversity of products.
Rexon owns a number of national-class oil purifier experts and experienced engineers. Encouraged by the company's modern management mechanism, we have developed six big series, including hundreds of models oil purifier equipment which have the independent property right and advanced filter technology. Those equipment can be applied to many fields, such as the electric power, petroleum chemical, metallurgical industry, mine, aviation, shipping and railway, and so on.
We adhere to the tenet of mutual-benefit and win-win. With the sincere and pragmatic work attitude, we would like open up new Sci&Tech oil purify era with our customer.
At Rexon, we know that the future of power depends on reliability today. That's why our High Vacuum Oil Purifiers are designed not just as machines, but as long-term partners in protecting your assets. By restoring insulating oils to their optimal condition - free from water, gas, and impurities - Rexon safeguards your transformers, reduces downtime, and ensures your systems operate with maximum stability.
For nearly two decades, Rexon has stood alongside global power utilities, heavy industries, and service professionals as a trusted provider of advanced oil purification solutions. Every system we deliver is the result of strict quality control, advanced engineering, and a commitment to supporting our customers beyond installation - with fast response, dependable service, and expert guidance.
Whether your priority is preventing costly failures, extending equipment lifetime, or achieving higher operational efficiency, Rexon has the technology and expertise to help you succeed.
Partner with Rexon today - and secure cleaner oil, stronger performance, and reliable power for the future.
For more information about any model of our oil purifier's specs, please leave us your Email, Tel, Mobile No. etc. then we can feedback to you immediately. Or you can contact us directly from our website. Don't hesitate to send us enquiry now! Welcome to visit us!