Bitmain Antspace HK3 (DWT-C) Hydro Mining Container

The Antspace HK3 is the hydro counterpart to the air cooled Antbox N5 V2 in Bitmain's container lineup. Where the N5 V2 houses 180+ air cooled miners at 658KW with forced air ventilation, the HK3 houses 210 hydro miners at 1,030KW with an integrated liquid cooling loop managed by the DWT-C industrial cooling tower. The result: 1.6 times the miner density, 1.5 times the power capacity, and PUE 1.034 versus 1.10 to 1.25 for typical air cooled containers.The system ships as two stackable pieces: the 20-foot mining container and the DWT-C cooling tower. The container holds miner racks, power distribution (1,600A/2,000A main switch, 1,250A rated current, 30 PDUs), network infrastructure, and safety systems. The DWT-C cooling tower handles coolant circulation and heat rejection across the full negative 25 to 40 degree Celsius ambient range, maintaining inlet water temperatures within the operating window for all supported hydro miners.Compatible hardware: Antminer S19 Hydro, S19 Pro Hydro, S21 Hydro, S21 XP Hydro, S21+ Hydro, and S23 Hydro series per Apexto documentation. Capacity is rated at 210 units but may adjust based on per-miner power draw. At 3,200 to 3,600W estimated per unit, 210 miners draw 672KW to 756KW. Working power range is 1,030KW to 1,050KW, providing headroom for higher draw S23 Hydro units at 5,510W (though 210 S23 Hydro units at 5,510W would total 1,157KW, exceeding capacity, so S23 Hydro deployments would run fewer units).Power distribution mirrors the N5 V2 architecture: 380 to 415V AC three phase 50/60Hz input, 1,600A/2,000A main switch, 1,250A rated current. Input cable: Single Core 600kcMil (300mm squared) x4x5, rated above 600V. A 2,500KVA transformer supports 2 HK3 containers running simultaneously (versus 3 Antbox N5 V2 containers on the same transformer), reflecting the HK3's higher power draw.Safety certifications are comprehensive and matter for institutional deployments requiring insurance coverage and code compliance: NFPA 79:2021 (electrical standard for industrial machinery), UL 508A:2018 R8.21 (industrial control panels), CSA C22.2 No. 14-18 (Canadian electrical), ANSI/ISO 12100:2012 (machinery safety), IEC 60204 Ed 5.1 2009 (electrical equipment of machines), plus China Classification Society structural certification.Operational safety systems: AI facial recognition door lock restricts container access to authorized personnel, video monitoring provides visual security surveillance, water leakage detection alerts to coolant system failures before damage occurs, fire push rod lock provides fire safety isolation, and one-button emergency stop shuts down all systems immediately.Site requirements per Bitmain documentation: hardened ground surface rated for at least 25-ton load. 20-ton crane for loading and unloading both container and cooling tower. Leave at least 2 meters of air inlet space around the cooling tower. Operating elevation below 2,000 meters; above 1,000 meters, reduce installed miner count by approximately 1% per additional altitude increment. Not included with the product: stairs, walkway boards, transformers, cables, bridges, cable distribution boxes, and other external facilities. Door opens left by default; notify Bitmain sales if right-opening is needed for site layout.6,058 x 2,438 x 2,896 mm at approximately 3.8 tons empty (container only, excluding miners and cooling tower). Currently out of stock at MillionMiner. MillionMiner also offers its own hydro container alternative: MM-Hydro-Vault 210. Free DDP delivery when available.