Industrial Refrigeration

Midwest Mechanical Systems delivers complete refrigeration solutions — from system design and installation to ongoing service and preventive maintenance. We support ammonia (R-717), CO₂ (R-744), and legacy Freon-based systems, helping our clients operate safely, efficiently, and with minimal downtime.

Our turn-key systems integrate seamlessly into your facility. We evaluate your current usage, work closely with your team or general contractor, and design systems tailored to your project and long-term needs. With in-house PEs, we don’t guess — we run the calculations, determine space loads, and define all utility requirements. Whether it’s DX, liquid recirculation (overfeed), or flooded systems, we have the solutions that fit your needs.

Engineering and Design
Certified Welders
Code Evaluations
Engine Room Ventilation
Compressors (Reciprocating and Screw)
Evaporative Condensers / CO₂ Gas Coolers
Condenser Water Systems
Recirculator Packages
Accumulators
High-Pressure Receivers
Thermosyphon Receivers
Auto Purgers
Anhydrators
Evaporators
Refrigerated Air Handling Units (Penthouse Units)
Shell & Tube / Plate & Frame Heat Exchangers
Falling Film Chillers
Scraped Heat Exchangers
Process Water and Glycol Systems
Makeup Air Units – Refrigerated
Coolers/Freezers
Cold Production Spaces
Spiral Freezers
Heat Load Calculations (Food and Equipment)
Line Sizing with Flow Simulation
Safety Valve Sizing
Production Makeup Air Design
Cascading Pressurization
Cooker Room Ventilation
Refrigeration Controls and Integration
System Commissioning and Startup Assistance
Refrigeration System Retrofits and Upgrades
Ammonia Detection and Safety Systems