Vacuum Extraction Equipment Classification:

Low vacuum vacuum pump unit (used for vacuum conveying, immersion, drying, etc.)

2. Medium vacuum pump sets (for applications such as coating, chemical industries, etc.)

3. High-vacuum Pumping Unit

4. Dedicated Equipment for Tanks (LNG Low-Temperature Tanks)

6. Truck-mounted, Tanker Equipment (LNG Tankers)

7. Vacuum Extraction Equipment for Cylinders (LNG Dewar Tanks)

Our company specializes in the research and development of vacuum extraction equipment for LNG, utilizing multi-stage vacuum pump sets (mechanical pumps + molecular pumps) technology, achieving ultimate vacuum levels.

Achieves 0.005 Pa (national standard requirement), rapidly recovers LNG tank and gas cylinder sandwich vacuum, significantly enhances insulation performance. Equipment is equipped with digital

Composite vacuum gauge displayed, supporting manual and computer dual-mode operation, real-time monitoring of vacuum data, and setting test pressure through the human-machine interface.

Parameters such as power and environmental temperature are managed智能化ly. We offer a one-stop service from production to maintenance.

Molecular Pump Set (e.g., STFJ-300 Model): Specifically designed for LNG vehicle gas cylinders, with a 30% improved jacket retraction efficiency, achieving vacuum standards in just a few hours.

Patented Cold Energy Recovery Technology: Combines LNG gasification cold energy, achieving a utilization rate of 50%, while saving energy and reducing consumption, and simultaneously cutting carbon emissions.

Modular portable design: Compact size, flexible movement, supports quick on-site installation and debugging, suitable for factories, gas stations, and various other scenarios.

公司产品线涵盖‌LNG储罐、车用气瓶、低温液体运输车及罐式集装箱‌的真空检测与补抽设备，满足从生

Full lifecycle needs from production manufacturing to operation and maintenance.

‌储罐制造环节‌：提供真空绝热层检测设备，确保焊缝探伤合格，并通过洁净车间工艺避免油脂

Residual effect on vacuum degree.

‌Vehicle Gas Cylinder Maintenance: To address the frequent exhaust issue of safety valves on LNG vehicles, we introduce a portable refueling and extraction unit, which extends the cylinder's insulation effect by 5 years after vacuum recovery.‌

Low-temperature Transportation Equipment: Compatible with 52.7M³ semi-trailers and tank containers, utilizing multi-layer vacuum insulation technology to ensure safe road and marine transport of LNG.

Core Application Fields:

Public Bus & Heavy Duty Truck Industry: Solve the problem of LNG vehicle gas cylinder leakage, reducing gas loss by over 30% and cutting operation costs.

‌储罐制造企业‌：通过真空检测设备确保内外胆夹层真空达标，提升储罐安全性与使用寿命‌。

Energy Transportation Field: Provides high vacuum insulation solutions for low-temperature liquid transport vehicles and tank containers, reducing the risk of cold energy loss.

High-Efficiency Energy-Saving: Cold energy recovery technology reduces reliance on diesel refrigeration, with each refrigerated truck saving over 10,000 yuan in fuel costs annually.

Safety & Compliance: Equipment is certified to ISO 9001 and holds a pressure vessel manufacturing license, compliant with national special equipment safety standards.

Service Advantages & Quality Assurance

Full-process Support: Offer one-stop service for equipment installation, debugging, and training, with 24/7 responsiveness to customer needs.

Quality Commitment: Utilizing advanced testing methods such as spectrometer analyzers and high-pressure test gas sources to ensure product quality upon shipment.

Industry Outlook & Innovation Directions

As carbon neutrality policies advance, the company continuously researches and develops green vacuum technology:

Oil-Free Vacuum Pump Applications: Utilizes dry screw pumps and Roots pumps to prevent oil contamination, suitable for food-grade low-temperature storage and transportation scenarios.

‌Smart Interlock System: Integrated pressure sensors and automated control for zero human error in the vacuum recovery process._