Hydro Mining Radiators & Cooling Systems | Lianli Equipment

A mining radiator (dry cooler) is an outdoor heat exchanger that rejects heat from a hydro cooling loop into the ambient air. It is the final stage of heat rejection in any hydro-cooled ASIC mining setup — essential for keeping coolant temperatures within operating range.

Start with your total ASIC power draw: three Antminer S21 Hydro at 5.5 kW each = 16.5 kW heat load. Select a radiator rated at 120-130% of that figure (20-22 kW). For hot climates (35C+), increase to 140-150%. Contact us with your miner count and site location for exact sizing.

The CDU circulates coolant through your miners, then routes heated coolant to the radiator for heat rejection. The radiator returns cooled fluid to the CDU, completing the loop. CDU and radiator must be matched for flow rate and thermal capacity. Browse our mining equipment for compatible CDU options.

Bitmain radiators are designed specifically for their Hydro miner ecosystem with guaranteed compatibility. Third-party dry coolers often offer higher capacity and better value at larger scales. Both work with standard hydro fittings. Contact us for recommendations based on your fleet size.

Small radiators (4.5-12 kW) can operate indoors with adequate ventilation — the radiator exhausts hot air into the room. Larger units (20 kW+) should be outdoors or in dedicated mechanical spaces. Outdoor installation requires glycol coolant to prevent freezing in cold conditions.

Radiator noise depends on size and fan speed. Small units (4.5-12 kW) produce 45-55 dB. Large industrial dry coolers (50+ kW) can reach 60-70 dB at full speed. Variable-speed fan controllers reduce noise during cooler ambient conditions. For noise-sensitive sites, contact us for low-noise options.

Clean radiator fins seasonally to remove dust and debris that reduce airflow efficiency. Check fan operation quarterly. Inspect hose connections for leaks. Test coolant chemistry every 3-6 months. Well-maintained radiators operate reliably for 10+ years. See our FAQ for detailed schedules.

Radiators are compatible with any hydro mining system that uses standard water/glycol coolant loops — including all Bitmain Antminer Hydro models. The key is matching thermal capacity (kW rating) and coolant flow rate to your setup. Contact us to confirm compatibility with your specific miners.

Radiator fan power is typically 1-5% of the total mining power draw. A 20 kW radiator may use 200-500W for its fans. Variable-speed controllers reduce consumption in cool weather. This is significantly less than air-cooled ASIC fan power, contributing to hydro cooling's superior PUE.

Yes — all radiators and dry coolers ship with free worldwide DDP delivery. No customs duties or import taxes. We handle all logistics, packaging (with protection for fins and fittings), tracking and insurance.

Yes — we offer custom dry cooler configurations for specific capacity requirements, non-standard mounting arrangements and specialised environments. Contact our team with your thermal load, space constraints and site conditions for a tailored solution.

Yes — volume B2B pricing is available for multi-unit radiator and cooling equipment orders. Contact our B2B team with quantities and specifications. We offer combined radiator + CDU + miner + hosting packages for complete hydro deployments.

For indoor setups where ambient temperature stays above 5C, use deionised water with corrosion inhibitor. For outdoor radiators or cold climates, use water-propylene glycol mix — 30% glycol for protection to -15C, 40% for -25C. We stock both corrosion inhibitor and premixed glycol coolant.

Radiator capacity depends on the temperature differential between coolant and ambient air. In hot weather (35C+), effective capacity drops 20-30%. In cold weather, radiators achieve "free cooling" with minimal fan power. Size your radiator for worst-case summer conditions to ensure year-round performance.

For mission-critical operations with 10+ hydro miners, redundant radiators are recommended. If a single radiator fails, your miners will overheat within minutes. Dual radiators with automatic failover protect your fleet. Contact us for redundant cooling system design.

Mount radiators with unrestricted intake and exhaust clearance — typically 1-2 metres minimum on all sides. Avoid recirculation where hot exhaust air feeds back into the intake. Wall-mounted units should exhaust away from the building. Multiple radiators should be spaced to prevent thermal interference.

Quality dry coolers use copper or aluminium fin-and-tube construction with corrosion-resistant coatings. Stainless steel fittings prevent galvanic corrosion. For coastal or high-humidity environments, specify marine-grade coatings. Proper coolant chemistry (corrosion inhibitor) protects internal loop surfaces.

Well-maintained radiators last 10-15+ years. Fan motors are typically the first component to need replacement (5-8 years). Fins and tubing are durable if coolant chemistry is maintained. Regular cleaning and corrosion inhibitor replenishment extend operational life significantly.

Many modern CDUs include temperature and flow monitoring with remote access. Adding inline temperature sensors and flow meters to your radiator loop provides real-time performance data. For hosted setups, our monitoring dashboard tracks cooling system health continuously.

Our team provides free hydro system design consultations including radiator sizing. Contact us via WhatsApp, email or phone with your miner count, site location and climate. Visit our FAQ for instant answers to cooling questions.