Dual-Chamber Vacuum Helium Leak Detection Equipment with Automatic
Recovery System for Leak Testing of Equipment
Product Introduction
Basic Principle: Helium is used as a tracer gas to fill the workpiece in a vacuum
chamber for leak detection. The helium signal in the vacuum chamber
is detected by a helium leak detector to achieve rapid and accurate
determination of the overall leakage situation of the workpiece.
Operation Process: The operator pushes the workpiece into the vacuum chamber,
connects the quick-connect coupling inside the chamber to the
workpiece interface, presses the close chamber button, and the
system automatically completes the entire process of gross leak
detection, evacuation, micro-leak detection, helium recovery, etc.
Product Features
Background Cleaning Technology:
A unique background cleaning technology is employed to thoroughly
clean the vacuum chamber and associated piping after each
inspection cycle, ensuring stability of the helium background
signal.
Calibration Technology:
An automatic calibration system facilitates regular and precise
calibration, accurately determining the overall leak rate of the
workpiece.
A standard leak hole (designated for daily inspections) simulates
the workpiece being tested, enabling online calibration of system
accuracy, ensuring system stability and reliability.
User-Friendly Operation:
The system integrates process automation technology with electrical
automatic control, allowing the entire workpiece inspection process
to be automatically controlled by PLC and a touchscreen interface.
Operators only need to load and unload workpieces, with the PLC
program automatically evaluating each step and proceeding to the
next based on preset conditions, eliminating the need for human
intervention.
Quality Assurance:
The fully automated inspection process eliminates the need for
human judgment and execution, reducing the influence of human
factors on inspection results, ensuring consistency, objectivity,
stability, and repeatability.
The system is equipped with a 1.0×10^-6 mbar·l/s standard leak
hole, with relevant certificates issued by the National Institute
of Metrology, China, ensuring traceability to the national standard
and third-party recognition of the system's leak detection
capabilities.
Product Parameters
| Item | Parameter |
| Leak Test Stations | 2 stations, capable of testing 1 workpiece each |
| Vacuum Chambers | 2 chambers, capable of accommodating 1 workpiece each |
| Chamber Dimensions | LWH=1000mm600mm250mm (Based on customer-provided dimensions) |
| Workpiece Clamps | 4 sets, 2 sets for each workpiece |
| Large Leak Detection Gas | Nitrogen |
| Large Leak Test Pressure | 25bar (adjustable downward) |
| Micro-leak Detection Gas | 100% Helium |
| Micro-leak Test Pressure | 25bar (adjustable downward) |
| Alarm Leak Rate | For refrigerant R134a, 3g/year, equivalent to 1.5*10^-5 Mbar.L/s |
| Cycle Time | 30 seconds per workpiece (120 workpieces per hour) |
| Helium Recovery | Automatic recovery system, helium recovery rate ≥98% |
Product Image with Leak Testing Equipment:
Advantage Services
- R&D and Design Team: We have our own R&D and design team to ensure technological
and innovative products for customers.
- Custom Design: We accept new product ideas from customers and provide unique
product designs based on their needs.
- Technical Support: All our workers are experienced and skilled.
- After-Sale Service: Our working and sales teams ensure fast and efficient after-sale
service for products sold globally.
Company Overview
- Company Name: Guangzhou Hejin Automation Control Technology Co., Ltd.
- Business Areas: Specialized in the research and development, manufacturing, and
sales of technology-intensive industrial equipment, including
vacuum helium leak detection equipment, automatic brazing machines,
gas/liquid filling and recovery systems, lean production lines, and
laboratory testing equipment.
- Market Applications: Our products are widely used in industries such as automotive,
refrigeration, power generation, household appliances, electronics,
pharmaceuticals, plumbing systems, and military applications.
Core Advantages: Under the guidance of Mr. Li Jianhe, the company boasts
proprietary core technologies and a substantial portfolio of
invention and utility patents. With a high-caliber team of
professionals, the company has embraced a novel production paradigm
centered on development, design, assembly, debugging, and
comprehensive after-sales support, ensuring products meet the
unique usage scenarios and technical specifications of clients.
Since its establishment, the company has continuously introduced
various types of special equipment to the market, meeting domestic
demand while exporting to America, Europe, Asia, Africa, and other
countries and regions.
