In seafood and cold chain logistics, ice is the main defense against spoilage and lost money. Many operators have a common problem. Ice melts too fast during long-distance transport. This gives wet product, temperature changes, and rejected shipments. This article shows how a Focusun brine system block ice machine solves this. We show why block ice works better than other ice. We show how Focusun's design makes slow-melting ice. This ice keeps product cold from start to finish.
Block ice works best for long cooling jobs. Flake ice and crushed ice are different. Block ice has a thick structure. It takes in heat slowly. It has a small contact area. It stacks well. It is strong. It does not break during loading. It has a steady melt rate. Trip planning is easier. A 50kg block from a Focusun brine block ice maker keeps temperatures stable for 3–5 days with good insulation. Flake ice in the same conditions lasts only 12–24 hours.
When you pick a brine system block ice machine for your business, equipment reliability affects your profits. Focusun's FIB series machines come in 5-ton to 30-ton daily sizes. They use decades of cooling knowledge. They make steady, high-quality block ice.
The main benefit of Focusun's brine system is the controlled freezing process. Cold brine flows around ice molds. It pulls heat out evenly. It creates dense, clear ice blocks. Slow freezing removes trapped air. This ice melts about 30% slower than fast-frozen ice. Blocks come in 5kg to 50kg sizes. Standard 50kg blocks are 480×160×700mm. Food-grade stainless steel or galvanized steel molds keep water clean. For seafood and cold chain operators, this means longer shipping. It means better product when it arrives.
Salt water, humidity, and loading damage equipment. Focusun uses materials that work in harsh places. Paktong tube evaporators move heat well. They resist salt water. SUS304 stainless steel parts resist rust. Reinforced ice cans handle repeated crane lifting. They do not break. This block ice maker works well for 15–20 years with normal care.
Focusun's design cuts electricity costs. The thaw tank uses waste heat from the compressor. It removes the need for separate heaters. It saves energy. Freezing takes 7.5 hours. Unloading takes 0.5 hours. This gives maximum production with good efficiency. Bitzer compressors give high COP numbers. The FIB-50B reaches 2.41 kW/kW efficiency. These features cut running costs by 15–20% compared to normal systems.
Moving ice blocks by hand needs many people. Focusun's automated systems make the process smoother. An overhead crane lifts ice cans from tank to tank by machine. A touch screen lets you check temperatures. It lets you check system status. A special inverted ice rack makes dumping simple. For operations making 10–30 tons daily, this cuts labor by 2–3 workers per shift. It also makes the workplace safer.
Q1: How is a brine system block ice machine different from direct-cooling systems?
A1: Brine systems use a second coolant (salt water) chilled by the main cooling circuit. This indirect cooling gives more even heat removal and allows bigger production than direct-expansion systems. Brine systems are best for industrial production of 5–30 tons each day.
Q2: How much space does a 10-ton brine block ice plant need?
A2: A full 10-ton system needs about 50–80 square meters. This includes the ice making area, thaw tank, and cooling tower. The FIB-100B evaporator is 4800×1000×2250mm. The cooling tower is Φ2000×2410mm.
Q3: What refrigerants can you use?
A3: Focusun machines work with many refrigerants. These include R22, R404A, R507A, R448A, R449A, and R717 (ammonia). This helps you follow local environmental rules and phase-out schedules.
For seafood processors, cold chain logistics companies, and industrial cooling operations, your ice equipment choice affects product quality, running costs, and market reach. Focusun's brine system block ice machines give you the slow-melting, high-density ice that makes long transport possible. They also provide the strong build and energy savings that protect your profits.
With more than ten years of industrial cooling experience and systems serving over 11,000 clients in 56 countries, Focusun brings proven knowledge to every project. Whether you need a 5-ton system for a fishing port or a 30-ton plant for regional cold chain needs, we design solutions that fit your exact requirements.
Contact Focusun today to talk about your ice production needs. Our team will help you find the right capacity, pick suitable mold sizes, and design a system that makes your work more efficient.
