$/kWh
External heat rejection and coolant management equipment for hydro-cooled ASIC mining operations. This category includes Lianli radiators, CDUs (Coolant Distribution Units), and the Lianli 28-unit cooling cabinet system designed to support up to 28 hydro-cooled miners in a single integrated infrastructure. Hydro miners generate significant heat that must be dissipated through external radiators or dry coolers. The cooling loop circulates a water-glycol mixture through the miner's heat exchangers, absorbs the thermal load, and transfers it to these external units for rejection. Proper radiator sizing depends on the total wattage of your hydro fleet and the ambient temperature at your facility. Lianli (Dongguan Lian Li Electronics Technology) is a specialist manufacturer of liquid cooling solutions for data centers and mining operations. Contact the team for sizing guidance, pricing, and compatibility with your hydro miner fleet.
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Cooling Experts
Help sizing your hydro system
A hydro-cooled ASIC mining system is only as effective as its ability to reject heat to the environment. The radiator — also referred to as a dry cooler, external heat exchanger, or CDU radiator — is the final stage of the cooling loop: it takes the heat absorbed from your ASIC miners and transfers it into the surrounding air. Undersizing the radiator is the single most common mistake in DIY hydro setups, and the one most likely to cause premature hardware failure or thermal throttling.
Range Available
4.5–85 kW
To match any hydro system size
Free Cooling
~0 W
Fan power in cold climates below 15°C
Noise vs Air-Cooled
−35 dB
Hydro system vs equivalent air-cooled rack
Deployment
Indoor & Outdoor
Wall-mount, floor-stand, or outdoor rooftop
In a hydro cooling loop, coolant absorbs heat from the hash board chips inside each Antminer Hydro machine. That heated water — now 10–20°C warmer than when it entered — exits via the quick-connect rear fittings and flows back through the return manifold to the radiator. Inside the radiator, the hot coolant passes through an array of metal fins and tubes while fans draw ambient air across the fin array. Heat transfers from the fluid to the air and is exhausted away from the unit.
In cold climates (ambient below ~15°C), the temperature differential between the heated coolant and the outdoor air is large enough that the fans can run at minimal speed — or in true cold climates, at near-zero power — and still achieve adequate heat rejection. This is called "free cooling" and represents one of the most significant economic advantages of hydro mining in northern Europe: effective PUE can approach 1.0 during winter months.
The radiator is sized in kilowatts of cooling capacity at a given ambient temperature. A common oversizing rule is to select a radiator rated at 120% of your total ASIC power draw — for example, a 12 kW radiator for a setup drawing 10 kW total. This headroom accounts for higher ambient temperatures in summer, any flow inefficiencies, and future capacity expansion.
1–2 Antminer Hydro units
Compact wall-mount radiator. Suits small home hydro setup or single-machine testbed. Indoor or sheltered outdoor.
3–4 Antminer Hydro units
Mid-range floor-stand or wall-mount unit. Most popular capacity for small racks of 3–4 machines.
6–10 Antminer Hydro units
Larger floor-standing dry cooler, suitable for single rack full deployment. Often deployed outdoors with glycol mix.
12–20 Antminer Hydro units
Rack-integrated CDU radiator or multi-circuit dry cooler. Commercial-grade construction for outdoor permanent installation.
25–30+ Antminer Hydro units
Industrial rack CDU. Full rack deployment heat rejection. Connects to multi-circuit distribution manifolds.
Hydro radiators serve different roles depending on your system configuration — from standalone single-machine setups to rack-scale CDU infrastructure.
A single Antminer Hydro machine draws ~5.5 kW. Running standalone, it needs a 4.5–6 kW external radiator connected via hose to its quick-connect rear fittings. The radiator can be wall-mounted in the same room, in a hallway, or passed through a wall to an outdoor location. A small pump (often the machine's own internal pump plus a supplemental inline unit) circulates the coolant. This is the entry-level hydro setup.
Typical radiator size
4.5–6 kW
A full mining rack of 8–12 Antminer Hydro machines draws 44–66 kW total. This requires an external radiator or dry cooler in the 50–85 kW range, typically floor-standing or mounted outside the building. A supply manifold distributes coolant from the radiator loop to each machine's quick-connect fitting; the return manifold collects heated water back. This is the standard rack-scale hydro configuration.
Typical radiator size
50–85 kW
Some enclosed rack cabinets are designed for hydro-compatible ASIC miners and include an integrated radiator inside the cabinet enclosure, rejecting heat through a rear duct or overhead plenum. This creates a fully enclosed, near-silent hydro mining unit. An external radiator is still required for larger cabinet configurations where the internal heat exchanger cannot handle the full thermal load — particularly for 10+ machine cabinets in warmer ambient conditions.
Typical radiator size
10–30 kW (supplemental)
Browse our radiator range above and filter by cooling capacity. If you are building a complete hydro system and want a confirmed component list — radiator, pump, manifolds, hoses, coolant — contact our team. We supply everything needed for a complete hydro loop and offer free system specification for customers purchasing equipment through us.