Crypto Mining Farms Negative Pressure Fans

Negative Pressure Fans for Crypto Mining Farms — 800mm to 1530mm Industrial Wall-Mount Ventilation

Air-cooled crypto mining farms are essentially industrial heat exchangers — pulling cool ambient air through racks of high-density miners and exhausting hot air out. At scale (50+ miners in a single room), individual miner fans aren't enough — you need building-scale ventilation to maintain ambient inlet temperature below the firmware throttling threshold (typically 35-40°C). This collection covers every negative pressure fan we stock for crypto mining farm ventilation — 800mm, 900mm, 1000mm, 1100mm, 1220mm, 1380mm, and 1530mm wall-mount industrial fans in 220V single-phase and 380V three-phase configurations with 50Hz and 60Hz frequency options for global deployment.

How negative pressure ventilation works in mining farms

The negative-pressure approach is standard for high-density industrial cooling :

• Large extract fans on the exhaust wall — pull air out of the mining room, creating a slight pressure differential vs outdoor ambient.
• Inlet vents on the opposite wall — outdoor air flows in passively through filter-equipped vents to replace the extracted air.
• Continuous airflow through the miners — the pressure differential ensures cool air constantly moves across the hashboards, never recirculating warm exhaust.
• Sizing rule of thumb — for typical crypto mining loads (~3kW per miner air-cooled), plan for ~250-350 CFM exhaust per kW. A 50-miner room (~150kW total) needs ~40-50k CFM total exhaust, typically delivered by 4-8 industrial wall-mount fans depending on size.

What's in this collection

Industrial wall-mount negative pressure fans organised by diameter and voltage :

• 800mm (80cm) negative pressure fan — 220V / 380V for mining farm and warehouse ventilation, smallest format for sub-50-miner rooms or single-rack exhaust.
• 900mm (90cm) negative pressure fan — 220V / 380V for crypto miner farms, mid-size for typical home-warehouse conversions and 50-100 miner deployments.
• 1000mm (100cm) high ventilation fan — 220V / 380V for crypto mining farm exhaust, common size for 100-200 miner industrial deployments.
• 1100mm high-power negative pressure fan — 220V / 380V for mining farms ventilation, higher airflow for high-density deployments.
• 1220mm high-power negative pressure fan — 220V / 380V for industrial-scale deployments with 200+ miners per ventilation zone.
• 1380mm extra-high-power negative pressure fan — 220V / 380V for large-format mining farms, very high airflow for dense 300+ miner deployments.
• 1530mm maximum-format negative pressure fan — largest size stocked, 220V / 380V for the highest-density industrial-scale mining halls and multi-MW facility ventilation.
• Voltage and phase options — each fan size available in 220V single-phase and 380V three-phase configurations. 50Hz and 60Hz frequency options for global compatibility (50Hz EU / Asia / Africa, 60Hz Americas / Middle East / parts of Asia).

Why source negative pressure fans from LYS Shenzhen

Three reasons crypto mining farm builders standardise on our industrial fan inventory :

• Industrial-grade build for 24/7 mining duty — these are real industrial wall-mount fans rated for continuous operation, not consumer ventilation fans rebadged for mining. Bearings, motor windings and impeller construction are spec'd for permanent duty cycle.
• Multi-voltage / multi-frequency stock — both 220V and 380V variants available in the same model, both 50Hz and 60Hz. One supplier for global mining farm deployments without per-region sourcing.
• Bulk pricing for farm construction — at $118-$135 per fan and 4-8 fans per mining room, fleet construction benefits from quote-based volume pricing. Worldwide shipping with DDP option for US and EU customers — large items quoted with full landed cost upfront.

Frequently asked questions

How many negative pressure fans do I need for a 100-miner Antminer S19 farm ?
A 100-miner S19 farm dissipates ~300kW of heat. At ~300 CFM exhaust per kW, you need ~90 000 CFM total. A 1000mm industrial fan moves roughly 12-15k CFM. Plan for 6-8 fans across the exhaust wall plus equivalent passive inlet vent area.

What's the difference between 220V single-phase and 380V three-phase ?
220V single-phase is standard residential / light commercial supply, suitable for smaller fans on a regular 16A breaker. 380V three-phase is industrial supply with lower per-line current draw — required for larger fans and more efficient for industrial-grade deployments. Match the fan to your facility's electrical supply.

What CFM does each fan size deliver ?
Approximate airflow ratings — 800mm fan : ~8-10k CFM ; 900mm : ~10-12k CFM ; 1000mm : ~12-15k CFM ; 1100mm : ~15-18k CFM ; 1220mm : ~18-22k CFM ; 1380mm : ~22-28k CFM ; 1530mm : ~28-35k CFM. Exact figures depend on static pressure (ducting and filter resistance).

Do you supply ducting / filter inlets to complete the airflow loop ?
We supply the exhaust fans themselves. Inlet vents, filter frames and ducting are typically sourced locally for shipping cost reasons (large lightweight items have high freight ratio). Our team can recommend specifications for compatible inlet treatments.

What's the lead time on bulk fan orders for new farm construction ?
Single units and small orders (1-4 fans) dispatch within a few business days from existing inventory. Larger orders (10+ fans for new farm builds) requiring sourcing or aggregation are quoted with a specific timeline matched to your construction schedule.

Get a custom quote for bulk negative pressure fans

For new mining farm builds, expansion of existing farms, or refresh of legacy ventilation systems, our quote-based volume pricing on industrial negative pressure fans reflects build-scale orders. Share your facility size, target miner count and electrical specs and we'll quote back with options including delivery timeline.

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