High Quality cold plunge products Supplier in China

Quality is at the heart of every cold plunges production at MKD. We are committed to providing our customers with the highest standard of Cold plunge

Strict Control of cold plunge Production Lines

We have divided quality control into multiple stages to ensure comprehensive management from raw materials to finished products.

Raw Material Inspection

Raw materials form the basis of product quality. To meet specific requirements, our company implements strict screening and inspection standards during the manufacturing process, ensuring that key materials such as stainless steel and cold-rolled steel meet the necessary conditions.

We also maintain close partnerships with our suppliers, enabling effective traceability of raw materials—an essential factor in ensuring product quality and performance consistency.

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Production Process Quality Control

We implement comprehensive quality control to ensure every unit meets the highest standards of safety and performance. The intelligent and automated production line continuously monitors key processes such as temperature control, sealing integrity, water circulation, and electrical connections. By analyzing parameters like temperature deviation, water flow rate, and energy efficiency in real time, the system quickly detects and corrects any abnormalities to maintain optimal conditions. Rigorous in-process inspections and final functional testing further enhance product consistency, reduce human error, and guarantee that each cold plunge unit is fully verified and compliant with international safety standards before leaving the factory.

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100% Comprehensive Inspection Before Delivery

Before shipment, every cold plunge unit undergoes a comprehensive quality inspection to ensure optimal performance and reliability. Each product is thoroughly tested for temperature stability, cooling efficiency, water circulation, and electrical safety under simulated working conditions. The surface finish, sealing performance, and structural integrity are also carefully examined to prevent any potential leakage or malfunction during use. Only after passing multiple rounds of functional and safety tests is the unit approved for packaging. This strict pre-shipment inspection process guarantees that every cold plunge delivered to customers meets our highest standards of quality, safety, and durability.

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Does Your Business Need Durable and Affordable Cold Plunge?

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Rigorous Testing Process

We combines advanced craftsmanship, strict quality control, mass production and modern facilities to ensure that each product has high precision, durability and global applicability.

Appearance Inspection

Each unit undergoes a meticulous visual inspection to ensure a flawless exterior finish. All panels, coatings, welds, nameplates, and assemblies are checked to guarantee a clean appearance, clear labeling, and structural integrity without any defects.

Electrical Safety Test

Comprehensive electrical safety testing is conducted. This includes measuring insulation resistance, grounding resistance, and dielectric strength to confirm that the product meets all electrical safety requirements and standards.

Air Tightness & Pressure Test

Once electrical safety is verified, the system undergoes air tightness and pressure testing. High-pressure nitrogen is introduced to the refrigeration circuit to check for any leaks or weaknesses in welds and connections, ensuring a fully sealed and reliable system.

Refrigeration Performance Test

The product’s cooling capacity, power input, and energy efficiency (COP) are measured under standard test conditions. This ensures the unit operates according to design specifications and delivers consistent thermal performance.

Noise & Vibration Test

Specialized acoustic and vibration equipment is used to measure the unit’s sound level and mechanical stability. The test ensures quiet, smooth operation and compliance with environmental and comfort standards.

Aging & Reliability Test

Each unit undergoes an extended continuous operation test under simulated real-world conditions. This long-duration run verifies stability, durability, and long-term reliability, ensuring every product leaving the factory is fully dependable.

Our Certificates

Our products are certified by FSC, FCC, CE, and RoHS, complying with global safety certifications and quality standards.

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