How We Ensure the Quality of Every MPCVD Machine We Deliver

At High Light, machine quality is not an afterthought — it is built into every stage of our process. From design and assembly to testing and final delivery, we apply strict quality control standards to ensure each machine performs reliably in long-term operation.

1. Precision Design and Component Selection

Every machine begins with a carefully engineered design. Key components are selected based on performance, stability, and durability, ensuring the system can operate continuously under demanding conditions.

2. Standardized Assembly Process

Our machines are assembled following standardized procedures by experienced technicians. Each step is documented and inspected to ensure consistency and eliminate potential assembly risks.

3. Multi-Stage Quality Inspection

Before delivery, every machine undergoes multiple rounds of inspection, including mechanical checks, electrical testing, water circuit test and system integration verification. This ensures all parameters meet our technical specifications.

4. Performance and Stability Testing

Each machine is tested under real operating conditions to verify performance stability, repeatability, and safety. Only machines that pass all performance benchmarks are approved for shipment.

5. Pre-Delivery Final Inspection

Prior to delivery, a final quality check is test growth of 3-7 days conducted to confirm overall system integrity, appearance, and documentation completeness. This guarantees the machine is ready for immediate installation and operation upon arrival.

So how do we perform quality inspection on MPCVD machines?

(1) Pressure maintenance of vacuum chamber

Firstly,we need to check Pressure maintenance of vacuum chamber

Ultimate vacuum < 5 × 10⁻¹ Pa and can keep 30 minutes

Ultimate pressure less than 0.5 Pa

Leak rate < 5 × 10⁻⁹ Pa·m³/s

System leak rate is less than 5 × 10⁻⁹ pascal cubic meters per second.

(2) How stable is the microwave output? What is the reflected power value?

Secondly,How stable is the microwave output? What is the reflected power value?

Check the PLC screen of the microwave output, set the figure and check actual figure.Ideally, the reflected power should be as close to 0 watts as better.

(3) Microwave coverage is uniform and large

Thirdly, check microwave coverage is uniform and large

Check through the window, the plasma ball is stable and uniform distribution, above and over cover the growing base.

(4) Is the cooling system leaking?

Again, is the cooling system leaking?

Once you turn on the machine will know Cooling system is it leak or not.

(5) Diamond Growth Process

Last but not least, it is important to know the diamond growth process.

When we need to check the quality of the diamond growing, it takes time to check the process during it. For example if growing diamond seed, it takes 3 days to grow one round, if rough diamond it takes around 15 days for one round, so we can check the quality after growing.

Through rigorous inspection standards and a commitment to engineering excellence, we ensure that every machine delivered to our customers meets the highest quality expectations — today and in the long run.

If you are interested in learning more about our MPCVD machines or would like to discuss a tailored solution for your needs, please feel free to contact us anytime. Our team is ready to provide professional guidance and support to ensure you get the best performance from every machine.