MG12038 DC Fan: 120×120×38mm High-Pressure Industrial Cooling Guide

120×120×38mm. Maximum Performance for Demanding Applications.

The MG12038 series represents the pinnacle of MEGA Tech's axial fan lineup with exceptional static pressure capabilities up to 155.6 mmH₂O (6.12 in H₂O). Engineered for high-density servers, power equipment, and industrial systems requiring maximum airflow pressure.

Key Highlights: - ⚡ Ultra-high speed range: 2500-11000 RPM - 💨 Exceptional airflow: 96.55-292.4 CFM - 🔥 Maximum static pressure: 155.6 mmH₂O - ⚙️ Multiple voltage options: 12V, 24V, 48V - 🛡️ UL94V-0 flame-retardant materials - ♿ 100% copper wire motor for reliability

Technical Overview

Performance Range

Frame Specifications

Complete Model Listing

12V DC Models

24V DC Models

48V DC Models

Note: S = Sleeve Bearing, B = Ball Bearing.

Understanding Product Codes

Code Structure

MG12038 + Speed + Voltage + Bearing + Special Code
   ↓       ↓       ↓         ↓            ↓
 Series  Speed  Voltage  Bearing  Custom Spec

Speed Codes

Voltage Codes

Bearing Types

Special Codes

Competitive Comparison

MG12038 vs Industry Leading Brands

Why Choose MEGA Tech?

1. Maximum Performance: 292.4 CFM airflow and 155.6 mmH₂O static pressure - the highest in its class
2. Ultra-High Speed: Up to 11,000 RPM for extreme cooling applications
3. 48V Option: Full lineup available in 48V for telecom and 5G base stations
4. 100% Copper Wire: Guaranteed 2-year warranty for ball bearing models
5. Low MOQ: Only 100 pieces first order, samples available
6. Extensive Customization: Any voltage, any speed, any connector, any function
7. Cost vs Performance: Best price-to-performance ratio in the industry
8. 13 Years Experience: Proven OEM/ODM manufacturer since 2008

Application Guide

Primary Applications

1. High-Density Server Cooling

Recommended Model: MG12038H12X / MG12038H24X - Heat Load: 200-400W per CPU/GPU - Static Pressure Required: 15-20 mmH₂O - Why MG12038: 17.23 mmH₂O at 4,500 RPM with balanced noise (56.6 dB-A) - Deployment: 1U/2U servers, blade servers, GPU servers, AI training clusters

2. Power Supply Unit (PSU) Cooling

Recommended Model: MG12038M24X / MG12038M48X - Heat Load: 1000-5000W PSU - Airflow Required: 120-150 CFM - Why MG12038: 124.92 CFM at 3,500 RPM, moderate noise (49.3 dB-A) - Deployment: Industrial PSUs, telecom power units, data center infrastructure

3. LED Display & Digital Signage

Recommended Model: MG12038L48X - Heat Load: 200-500W per cabinet - Noise Requirement: < 50 dB-A - Why MG12038: 108.28 CFM at 3,000 RPM, quiet operation (45.7 dB-A), 48V power - Deployment: Outdoor LED screens, stadium displays, airport information systems

4. Industrial Automation & Control

Recommended Model: MG12038HH12X / MG12038HH24X - Heat Load: 500-1000W per cabinet - Environment: Harsh, dusty, variable temperature - Why MG12038: 181.61 CFM at 5,000 RPM, high static pressure (21.11 mmH₂O) - Deployment: PLC cabinets, VFD drives, machine control systems

5. 5G Base Station Equipment

Recommended Model: MG12038VH48X / MG12038HV48X - Heat Load: 1000-2000W per rack - Power Rail: 48V DC telecom standard - Why MG12038: 265.5-292.4 CFM at 10,000-11,000 RPM, extreme pressure (117.7-155.6 mmH₂O) - Deployment: 5G macro cells, small cells, indoor coverage units

6. EV Charging Infrastructure

Recommended Model: MG12038HV12X / MG12038HV24X - Heat Load: 2000-5000W DC fast charger - Static Pressure Required: > 100 mmH₂O for dense electronics - Why MG12038: 292.4 CFM at 11,000 RPM, 155.6 mmH₂O pressure - Deployment: Level 3 fast chargers, supercharger stations, fleet charging hubs

7. Cryptocurrency Mining Rigs

Recommended Model: MG12038VH12X / MG12038VH24X - Heat Load: 2000-4000W per mining rig - 24/7 Operation: Demands extreme reliability - Why MG12038: 265.5 CFM at 10,000 RPM, 117.7 mmH₂O, ball bearing (70,000 hrs) - Deployment: GPU mining farms, ASIC miners, proof-of-work rigs

8. Medical Equipment

Recommended Model: MG12038M12Y (Hydraulic bearing) - Heat Load: 200-500W - Noise Requirement: < 50 dB-A critical - Why MG12038: 124.92 CFM at 3,500 RPM, hydraulic bearing (ultra-quiet, 40,000+ hrs) - Deployment: MRI chillers, CT scanners, X-ray systems, lab equipment

Selection Decision Tree

Start
 │
 ├─ Voltage Required?
 │   ├─ 12V → Check Heat Load
 │   ├─ 24V → Check Heat Load
 │   └─ 48V → Check Heat Load
 │
 ├─ Heat Load (W)?
 │   ├─ < 300W → MG12038L series
 │   ├─ 300-500W → MG12038M series
 │   ├─ 500-800W → MG12038H series
 │   ├─ 800-1500W → MG12038HH series
 │   ├─ 1500-2000W → MG12038VH series
 │   └─ > 2000W → MG12038HV series
 │
 ├─ Noise Critical?
 │   ├─ Yes → Hydraulic bearing (Y), lower speed
 │   └─ No → Ball bearing (B) or Sleeve (S)
 │
 └─ Operating Environment?
     ├─ Industrial / Harsh → Ball bearing
     ├─ Office / Quiet → Hydraulic bearing
     └─ Cost Sensitive → Sleeve bearing

Technical Specifications Deep Dive

Airflow vs. Static Pressure Curve

The MG12038 series follows these performance characteristics:

Low Speed (MG12038L): - Airflow: 96.55-108.28 CFM - Backpressure capability: 0-7.16 mmH₂O - Best for: Open environments, low restriction

Medium Speed (MG12038M): - Airflow: 108.28-124.92 CFM - Backpressure capability: 0-10.8 mmH₂O - Best for: Moderate restriction, balanced cooling

High Speed (MG12038H): - Airflow: 131.62-162.93 CFM - Backpressure capability: 0-17.23 mmH₂O - Best for: Dense heat sinks, high restriction

Ultra High Speed (MG12038VH/HV): - Airflow: 201.17-292.4 CFM - Backpressure capability: 0-155.6 mmH₂O - Best for: Extreme pressure requirements, forced air cooling

Power Consumption

Noise Analysis

Installation & Wiring

Mounting Guidelines

1. Screw Size: M3 × 5mm or M3 × 6mm (recommended)
2. Torque: 0.5-1.0 N·m (4.4-8.8 lb in) - DO NOT over-tighten
3. Mounting Pattern: 105mm × 105mm (center-to-center)
4. Clearance: Minimum 25mm front and rear for airflow
5. Orientation: Can be horizontal or vertical

Wiring Options

Standard 2-Pin (2-Wire)

• Configuration: Power only (no control)
• Wire Colors: Red (+V), Black (-V/GND)
• Applications: Fixed speed, simple systems

PWM 4-Pin (4-Wire)

• Configuration: Speed control + Tachometer
• Pinout:
• Pin 1: Black (GND)
• Pin 2: Red / Yellow (+12V/24V/48V)
• Pin 3: Green / White (Sense / Tachometer)
• Pin 4: Blue / Orange (PWM Control)
• PWM Frequency: 21-28 kHz
• Duty Cycle: 0-100% (0% = off, 100% = full speed)

Tachometer Signal

• Frequency: 2 pulses per revolution (standard)
• Pull-up Resistor: 4.7kΩ (internal or external)
• Output Type: Open collector (requires pull-up)

Cable Assembly Options

Customization & Special Features

Performance Customization

Custom Speed Grades

• Any RPM: 2,500 to 11,000 RPM in 250 RPM increments
• Airflow Targets: Specify exact CFM or m³/h
• Pressure Targets: Specify exact mmH₂O or in H₂O
• Noise Targets: Target specific dB-A level

Voltage Customization

• Non-standard: 9V, 15V, 19V, 36V, 110V AC options
• Wide Range: Single fan with extended operating voltage
• Dual Voltage: Auto-switching 12V/24V (special models)

Functional Options

Rotation Direction

• CW = Clockwise (standard)
• CCW = Counter-clockwise (special order)
• Bidirectional = Switchable CW/CCW (optional)

Special Features

• PWM Control: 4-pin PWM with 21-28 kHz
• FG (Tachometer): Speed feedback signal
• RD (Rotation Detection): Direction signal
• AL (Alarm): Stall / low-speed alarm output
• Thermistor: Temperature-sensing speed control (NTC)
• Waterproof: IP54 / IP55 available
• Explosion-proof: For hazardous environments (Class I Div 1)

Mechanical Customization

Frame Color

• Standard: Black
• Custom: White, gray, orange, green, blue, etc.

Logo & Branding

• Pad Printing: Custom logo on frame
• Laser Etching: Permanent marking
• Molded-in Logo: For large volume orders

Connector Customization

• Any Connector: MOH, Molex, JST, JST-XH, Phoenix, AMP
• Pin Configuration: Custom pinout
• Wire-to-Board: Direct PCB connection

Frequently Asked Questions (FAQ)

Product Information

Q: What is the difference between MG12038L, M, H, HH, VH, and HV?

A: These denote the speed grade: - L (Low): 2,500-3,000 RPM - quietest, lowest airflow - M (Medium): 3,500-4,000 RPM - balanced performance - H (High): 4,500-5,000 RPM - high performance - HH (Very High): 5,000-5,500 RPM - very high performance - VH (Ultra High): 5,500-10,000 RPM - ultra-high speed - HV (Hyper): 10,000-11,000 RPM - extreme speed, maximum pressure

Q: Can I run a 12V fan on 24V?

A: No. Running a 12V fan on 24V will cause permanent damage. Always match the rated voltage to your power supply.

Q: What is PWM and do I need it?

A: PWM (Pulse Width Modulation) enables variable speed control. Use PWM if you need: - Automatic temperature-based speed adjustment - Noise reduction at low loads - Precise thermal management

PWM uses a 4-pin connector (power + PWM signal + tachometer). The 2-pin version runs at constant speed.

Q: What is the tachometer (FG) signal used for?

A: The tachometer provides a speed feedback signal (2 pulses per revolution). Uses include: - Speed monitoring via motherboard or controller - RPM display in BIOS or monitoring software - Fan failure detection

Q: Which bearing type should I choose?

A: Depends on application: - Sleeve (S): Cost-effective, low noise, limited to 20,000-30,000 hours. Best for: desktops, office equipment. - Ball (B): High temperature resistant, long life (50,000-70,000 hrs). Best for: industrial, harsh environments. - Hydraulic (Y): Ultra-low noise, moderate life (40,000-50,000 hrs). Best for: medical, audio equipment. - Two Ball (BB): Maximum reliability (70,000+ hrs). Best for: critical systems, 24/7 operation.

Performance & Technical

Q: How much airflow do I need for my application?

A: General guidelines: - CPU cooling (desktop): 30-60 CFM per fan - Server rack (1U): 80-150 CFM per fan - Power supply (500-1000W): 100-150 CFM - Industrial cabinet (500W): 150-200 CFM - High-density server (1000W+): 200-292 CFM

For precise calculation, use: CFM = (Heat Load (W) × 3.16) / ΔT (°C)

Q: What is static pressure and why does it matter?

A: Static pressure measures a fan's ability to push air against resistance (dust filters, heat sinks, ducting). High static pressure fans maintain airflow in restricted environments.

Requirements: - Open air: < 5 mmH₂O - Heat sink restricted: 10-20 mmH₂O - Filter + heat sink: 20-50 mmH₂O - Dense equipment / ducts: 50+ mmH₂O

Q: Can I run MG12038 fans silently?

A: Not completely silent. Even at minimum speed, the MG12038 produces 40-45 dB-A. For near-silent operation (< 30 dB-A), consider: - Lower speed series (MG12025, MG8025) - Larger fans at lower RPM (MG14025) - Hydraulic or sleeve bearing variants

Ordering & Support

Q: What is the minimum order quantity (MOQ)?

A: - Samples: 1 piece available for testing - First order: 100 pieces minimum - Repeat order: Flexible based on your requirements

Q: How long is the lead time?

A: - Standard off-the-shelf models: 7-15 days - Customized products: 15-30 days (depending on complexity) - Rush orders: Available with expedited fee (contact us)

Q: What are the payment terms?

A: - Order < $1,000: 100% T/T in advance - Order ≥ $1,000: 50% T/T in advance, 50% before shipment - Long-term partners: Flexible terms (net 30/60 available)

Q: Do you offer free samples?

A: Yes! We can provide 2-10 samples for evaluation. Free samples for qualified customers. Shipping charges may apply.

Q: What testing procedures do you perform?

A: Every MG12038 undergoes 100% testing before shipment: - Speed verification (RPM) - Airflow measurement (CFM) - Static pressure test (mmH₂O) - Current and power consumption - Noise level measurement (dB-A) - Voltage locking test - Reverse polarity protection - Vibration and balance check

Warranty & Quality

Q: What is the warranty period?

A: - Ball bearing fans: 2 years from date of purchase - Sleeve bearing fans: 1 year from date of purchase - Failure rate target: < 0.5% per year

Q: What certifications does MG12038 have?

A: - ISO 9001:2015: Quality management system - CE: European conformity - RoHS: Lead-free & environmentally friendly - UL94V-0: Flame retardant frame and blades - UL / cUL: UL Listed (optional, by request) - FCC: EMI/EMC compliance (optional)

Q: Do you offer drop-shipping or direct to end-customer?

A: Yes, we can ship directly to your customers with neutral packaging. Perfect for distributors and resellers.

Quality Assurance & Manufacturing

Manufacturing Process

MEGA Tech's state-of-the-art facility in Shenzhen produces MG12038 fans with:

1. Injection Molding: On-site ABS/PBT frame and blade production
2. Motor Winding: 100% copper wire precision winding
3. Assembly: Fully automated rotor and frame assembly
4. Balancing: Computerized dynamic balancing (< 0.2 g·mm)
5. Testing: 100% functional and performance testing
6. Quality Control: ISO 9001:2015 certified processes

Quality Metrics

Certifications & Compliance

• ✅ ISO 9001:2015 Quality Management System
• ✅ CE European Conformity
• ✅ RoHS Restriction of Hazardous Substances
• ✅ UL94V-0 Flame Retardant Rating
• ✅ REACH Chemical Registration
• ✅ WEEE Waste Electrical and Electronic Equipment Compliance

Ordering Information

How to Order

Step 1: Specify Your Requirements

Provide the following information: - Quantity: Number of pieces needed - Voltage: 12V / 24V / 48V - Speed Grade: L / M / H / HH / VH / HV (or target RPM) - Bearing Type: Sleeve / Ball / Hydraulic - Special Functions: PWM, Tachometer, Alarm, etc. - Connector Type: MOH, Molex, JST, or custom - Wire Length: Standard 300mm or custom

Step 2: Get a Quote

Response Time: Within 12 hours (often within 4 hours) Quote Includes: Unit price, MOQ, lead time, shipping estimate

Step 3: Confirm Sample

• Sample Cost: Free for qualified customers
• Sample Lead Time: 3-7 days
• Shipping: Express courier (DHL / FedEx)

Step 4: Place Order

1. Review and approve quotation
2. Sign PI (Proforma Invoice)
3. Deposit payment (50% T/T)
4. Production starts
5. Payment balance before shipment
6. Goods shipped, tracking number provided

Pricing Information

Exact pricing depends on model, customization, and market factors.

Lead Times

Customer Success Stories

Case Study 1: 5G Base Station Cooling Upgrade

Customer: Leading 5G infrastructure provider Challenge: Existing 25mm fans couldn't maintain temperature < 80°C under full load Solution: MG12038VH48X (10,000 RPM, 265.5 CFM, 117.7 mmH₂O) Result: CPU temperature reduced to 65°C under full load, 15°C improvement Deployment: 10,000+ units shipped

Case Study 2: GPU Mining Farm Optimization

Customer: Cryptocurrency mining operator Challenge: Fan failures every 3 months with competitor's 40mm fans Solution: MG12038VH12X with ball bearing (10,000 RPM, 70,000 hr lifespan) Result: Zero fan failures in 18 months, 50% airflow improvement ROI: Reduced maintenance cost by 75%

Case Study 3: Medical Scanner Quiet Operation

Customer: Medical imaging equipment manufacturer Challenge: Excessive noise (65 dB-A) impacted patient comfort Solution: MG12038M12Y with hydraulic bearing (3,500 RPM, 49.3 dB-A) Result: Noise reduced to 49.3 dB-A, improved patient satisfaction Certification: FDA approval maintained

MEGA Tech Company Profile

Who We Are

Founded: 2008 Facilities: 2 factories in Shenzhen, 1 office in Guangzhou Experience: 13+ years in axial fan manufacturing Certifications: ISO 9001:2015, CE, RoHS, UL94V-0 Markets: 30+ countries worldwide Annual Output: 5,000,000+ fans

Why MEGA Tech?

🎯 OEM/ODM Excellence: 13 years of experience serving major brands ⚡ Quick Production: 3 dedicated production lines 🔍 100% Testing: Every fan tested before shipment 🧑‍💼 Expert Team: English-speaking sales and engineering support 🌍 Global Reach: Exporting to 30+ countries 🤝 Flexible MOQ: As low as 100 pieces for first order 📦 Fast Delivery: Standard 7-15 days, express samples available 🏭 In-House Production: Injection molding, motor winding, assembly all under one roof

Our Commitment

• Quality First: ISO 9001:2015 certified, CE RoHS compliant
• 100% Copper Wire: Guaranteed 2-year warranty for ball bearing fans
• Custom Solutions: Any application, any specification
• Customer First: Responsive support, free samples, fair pricing

Product Test Videos

Watch the MG12038 DC Fan in action:

EC12038 with PWM Controller Test

Click to watch: EC12038 Fan with PWM Controller - Test Video

This video demonstrates: - Full 0-100% PWM duty cycle adjustment - Smooth speed changes - Immediate performance responsiveness - Compliance with new acoustics targets

See how MEGA enabled PWM speed control on EC12038 fans without system redesign!

Related Products

Complete MEGA Tech Fan Lineup

Related Articles

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• MG6025 DC Fan Guide - 60×60×25mm compact high-pressure solution
• Bearing Types Comparison - Choose the right bearing for your application
• Fan Selection Guide - Complete selection guide for all MEGA fans
• PWM Control Tutorial - Understanding and implementing PWM fan control

Ready to Order?

Request a Quote Today!

📧 Email: [email protected] 🌐 Website: www.cnmegatech.com 📞 Phone: +86 13570567086 💬 WeChat: +86 13570567086 🚀 WhatsApp: +86 13570567086

What We Need From You

1. Quantity: How many pieces do you need?
2. Voltage: 12V / 24V / 48V
3. Speed Grade: L / M / H / HH / VH / HV (or target RPM)
4. Bearing Type: Sleeve / Ball / Hydraulic
5. Special Functions: PWM, Tachometer, Alarm, etc.
6. Application: What will you use it for?
7. Shipping Address: Where to ship?

Response Time: Within 12 hours (often within 4 hours)

Last Updated: March 22, 2026

Categories: [[Products]], [[DC Fans]], [[High Pressure]], [[Server Cooling]], [[Industrial Fans]]

Tags: [[12038]], [[dc-fan]], [[axial-fan]], [[industrial-fan]], [[server-cooling]], [[high-pressure]], [[12v]], [[24v]], [[48v]], [[pwm]], [[MEGA Tech]], [[manufacturer]]