Saicheng has been devoted to the R&D of testing instruments for over 19 years. We have served over 1,000 clients overseas.
Saicheng products have been exported to more than 80 countries and regions, including Europe, Asia, America, Oceania and Africa.
With a 2000 m² factory and multiple production lines, we deliver precision-engineered testing instruments at scale.
Our range of vacuum leak testers complies with various test methods and can meet your different needs. This instrument is widely used in industries including food, beverages, pharmaceuticals, medical device, cosmetics, electronics. The following two types are the most commonly used:
| Feature | Bubble Emission Test ASTM D3078 |
Vacuum Decay Leak Test ASTM F2338 |
|---|---|---|
| Product Model | MFY-CM/MFY-02 | MK-500H/MK-2000H |
| Principle | Package submerged in water under vacuum; leaks identified by observable bubble streams. | Package placed in evacuated test chamber; any rise in pressure (vacuum loss) is measured by transducers. |
| Measured or Observed Output | Visual observation of bubbles (operator-dependent). | Quantitative pressure change (ΔP) over time; automated pass/fail determination. |
| Sensitivity | Detection limit ~150 µm or larger, depending on package size and operator experience. | Capable of detecting leaks not visibly identifiable; sensitivity established by comparison with control (non-leaking) packages and simulated leaks. |
| Package Headspace Requirement | Required — package must contain internal gas (headspace). | Not required — gas or liquid leakage may be tested on flexible, nonporous packages. |
| Compatible Package Formats | Flexible packaging with headspace: snack bags, pouches, some medical/pharma pouches. Not suitable for vacuum-sealed products without artificial inflation. | Flexible nonporous packages, rigid containers, semi-rigid packages, blister packs, vials, ampoules. |
| Destructive or Non-Destructive | Destructive | Non-destructive |
| Key Advantages | Very low capital investment; simple visual operation; readily identifies leak location. | Quantitative, repeatable results; no extraneous materials; no sample damage. |
| Key Limitations | Subjective visual interpretation; sample is wetted; must have headspace; limited sensitivity. | Higher equipment cost; requires method development and validation for each package type; may not detect ultra-fine leaks. |
The MK Series from Saicheng features advanced testing capabilities and the widest range of fixtures to accommodate vacuum decay leak testing for specimens of various specifications. Additionally, the test chamber can be customized to accommodate different sample sizes.
We have over 19 years' experience in the R&D of packaging testing equipment. The core components of our products are sourced from world-renowned suppliers to ensure more stable instrument performance, more accurate test results, and a longer service life. This is why we are recognised by many overseas customers.
Our professional after-sales team has experience in project implementation and can handle any unexpected issues promptly, giving you peace of mind.
Our team of five after-sales engineers, each with over 10 years' experience in the packaging testing industry, provides excellent customer service and resolves any technical issue promptly.
When the equipment malfunctions, our team of engineers will provide a solution within two hours of receiving a request for assistance. They will quickly diagnose the problem and ensure that the instrument can resume operation on the same day.
We provide product calibration manuals and videos to help you improve the accuracy of your instruments and ensure that each measurement is accurate.
The instrument has ISP functionality, which supports online debugging and updates. Engineers can provide remote assistance with program upgrades, which reduces maintenance costs.
We provide comprehensive product manuals and instructional videos to help users learn how to operate the product easily after receiving it, thereby reducing the learning time.
Years of Experience
Saicheng Instrument Company, an industry-leading supplier, is a technology-based enterprise dedicated to the development, production, and sales of physical property testing instruments.
Since its establishment in 2007, the company has provided high-quality testing instruments and comprehensive quality control solutions for packaging, food, pharmaceutical, medical equipment, adhesive products, quality inspection institutions, scientific research institutions, daily chemical industries and other industries.
Saicheng products have been exported to more than 80 countries and regions, including Europe, Asia, America, Oceania and Africa.
Our company has over 50 patents, including invention patents, utility model patents, and software copyrights. It has passed the evaluation for high-tech enterprises, provincial specialties, and new enterprises. Additionally, the company has obtained software enterprise and software product certifications, as well as ISO 9001 quality management system certification.
We welcome customers from all over the world to visit our factory and inspect our testing instruments.
If it is inconvenient for you to come, we can arrange an online video conference to tell you more about our factory.
My name is Cheery from Saicheng. I have 10 years of experience in the industry, which allows me to quickly understand your needs and develop the most suitable testing solutions for your company.
Don't just take our word for it! Read what our satisfied customers have to say about our high-quality, competitively priced testing instruments. Read their reviews to find out why our products are the best choice.
Before purchasing the instrument, you can send your samples to our factory for testing. We offer free sample testing services and will provide you with test data reports and videos of the tests.
