Online Q&A
Frequently Asked Questions
Find answers to commonly asked questions about test chamber and services.
Are you a trading company or a manufacturer?
ZKSSUN is an integrated company of R&D, manufacturing, and global trade.
We specialize in environmental and reliability testing equipment.
ZKSSUN originated in Japan and now operates globally with advanced manufacturing and engineering capabilities. We combine design, production, and technical support into one system to ensure fast response and high-quality delivery.
Which industries do you serve?
We serve almost all industries that require reliability testing.
These include electronics, automotive, aerospace, semiconductors, new energy, telecommunications, AI robotics, defense, pharmaceuticals, and scientific research.
Our equipment is widely used in both R&D laboratories and production quality control environments.
Do you accept customization? Can I add my logo on the machine?
Yes, we provide full customization, OEM, and ODM services.
Customers can customize chamber size, temperature range, humidity system, control interface, and branding (logo).
We design and build equipment based on specific testing requirements and application scenarios.
What is the delivery time?
Standard models usually require 30–45 working days for production.
If the product is in stock, shipment can be arranged within 7 days.
Delivery time depends on customization level and order quantity.
Do you have global agents or distributors?
Yes, we have authorized agents in Europe, Asia, North America, and South Africa.
Our global network provides local sales support, technical consultation, installation guidance, and after-sales service.
What is your after-sales service policy?
We provide a 12-month warranty with free replacement of defective parts.
Our support includes remote troubleshooting, video guidance, spare parts replacement, and optional on-site service through local partners.
We ensure fast response to minimize downtime and maintain test continuity.
What are your trade and payment terms?
We support flexible international trade terms including EXW, FOB, CIF, DDU, and DDP.
Payment methods include T/T, PayPal, and L/C, depending on order agreement.
Product FAQs
Find answers to commonly asked questions about test chamber.
How do I choose the right environmental test chamber?
The best product depends on your test sample, temperature range, humidity requirements, and test standard.
Our engineers will recommend the most suitable model based on your application, industry, and testing parameters.
Simply share your requirements, and we will provide a tailored solution.
What types of environmental test equipment do you supply?
We supply a full range of environmental test chambers used for reliability and performance testing.
Our main products include temperature humidity chambers, thermal shock chambers, rapid thermal cycling chambers, walk-in chambers, HAST chambers, altitude chambers, salt spray chambers, and industrial ovens.
These systems are widely used in electronics, automotive, aerospace, semiconductors, and new energy industries.
What calibration services do you provide?
We provide calibration through our internal laboratory and CNAS-certified third-party labs in China.
We also support international calibration via organizations such as TÜV, SGS, or local accredited laboratories.
Calibration ensures accuracy, compliance, and long-term stability of testing results.
What are the key temperature test parameters?
Key parameters include temperature range, fluctuation, uniformity, deviation, heating/cooling rate, recovery time, and transition time.
These parameters determine the accuracy and stability of environmental simulation testing.
Should I choose air-cooled or water-cooled systems?
Both systems provide cooling for environmental chambers.
Air-cooled systems are easier to install and maintain, while water-cooled systems are more stable in high-load environments.
The choice depends on your facility conditions and testing requirements.
Do I need an automatic water supply system?
An automatic water supply system is recommended for long-term humidity testing.
It reduces manual operation, ensures stable humidity performance, and improves test continuity.
It is especially useful for large chambers or continuous testing environments.
Why is temperature or humidity not accurate during testing?
Inaccurate results may be caused by sensor issues, incorrect setup, airflow imbalance, or system alarms.
Common issues include failure to reach low temperature, unstable humidity, abnormal high-temperature variation, or pressure alerts.
Technical inspection is recommended for precise diagnosis.
What is the difference between thermal shock and thermal cycling chambers?
Thermal shock chambers change temperature instantly between extreme hot and cold zones.
Thermal cycling chambers change temperature gradually over time.
Thermal shock is more aggressive and used for extreme stress testing, while thermal cycling simulates real-world environmental changes.