Frequently Asked Questions

An ultra-low temperature freezer is a specialized refrigeration unit designed to store biological samples, vaccines, pharmaceuticals, and medical materials at temperatures as low as -86°C or even -150°C, ensuring long-term stability and integrity of temperature-sensitive materials.

ChiEnCheng product lines cover: Medical refrigerators (2~8°C), low temperature freezers (-25°C to -45°C), ULT freezers (-60°C to -86°C), and deep cryogenic freezers (-120°C to -150°C).

ULT freezers typically reach -60°C to -86°C and are ideal for standard biosample storage (DNA, RNA, plasma). Cryogenic freezers reach -120°C to -150°C and are needed for long-term preservation of sensitive cells, stem cells, and reproductive cells that require deep cryogenic temperatures.

ChiEnCheng offers a wide range of capacities from compact 25L portable units to large-scale 1500L+ storage. Vertical and horizontal (chest) configurations are available for different space and access requirements.

Yes. We offer dedicated blood bank refrigerators at 4°C (optimal for whole blood and plasma) and ULT freezers at -80°C for long-term plasma and cord blood storage. Our blood bank models feature 6-point temperature monitoring and AABB compliance options.

ChiEnCheng products hold ISO9001 (Quality Management), ISO13485 (Medical Device QMS), CE (EU compliance), FDA (US market registration), and CCC (China Compulsory Certification).

Yes. Our medical refrigerators (2~8°C) and blood bank refrigerators meet WHO guidelines for vaccine and pharmaceutical cold chain storage. Documentation for regulatory submissions is available upon request.

Yes. ChiEnCheng offers comprehensive OEM/ODM services including custom temperature ranges, dimensions, voltage specifications, monitoring interfaces, color/logo branding, and special material requirements.

MOQ varies by product type and customization level. Standard products typically have no MOQ. Custom OEM orders generally start at 5–10 units. Contact our sales team for specific requirements.

Standard lead time is 15–45 days after order confirmation, depending on product complexity and current production schedule. Complex custom orders may require additional time for tooling and validation.

We offer sea freight (LCL/FCL), air freight, and express courier (DHL/FedEx) depending on order size and urgency. Door-to-door delivery is available for most destinations.

Yes. ChiEnCheng ships to 150+ countries worldwide. We handle all export documentation including commercial invoice, packing list, certificate of origin, and Bill of Lading.

Standard payment terms: T/T 30% deposit, 70% balance before shipment. Letter of Credit (L/C) available for orders over USD 30,000. PayPal and credit card available for sample orders.

Standard warranty: 2 years on the complete unit. Compressor warranty: 5 years. Temperature controller warranty: 2 years. Warranty does not cover damage from misuse, unauthorized modifications, power surges, or Acts of God.

Contact our technical support team via phone (+86 189 1072 7740), email (info@chienchengfreezer.com), or WeChat (18910727740). Remote diagnostic support is available for most technical issues. Spare parts are shipped within 48 hours for warranty claims.