Chattanooga Hydrocollator M-4 Mobile Heating Unit

The Chattanooga Hydrocollator M-4 Mobile Unit is the flagship of clinical moist heat therapy. Designed for high-volume hospitals, large rehabilitation centers, and professional sports medicine facilities, the M-4 offers the highest capacity of any mobile unit on the market. With its 27-gallon tank, it provides a constant supply of temperature-consistent HotPacs, allowing multiple practitioners to treat patients simultaneously without interruption.

Need help determining if the M-4's 24-pack capacity is the right fit for your facility's expansion? Call 866-218-0902 to speak with a clinical equipment specialist.

Quick Summary

• Industry-Leading Capacity: Holds up to 24 Standard HotPacs (10" x 12") for maximum clinical throughput.
• Superior Mobility: Heavy-duty 3" swivel-type rubber casters ensure silent, friction-free movement between treatment bays.
• Maximum Efficiency: Full fiberglass insulation reduces energy consumption and prevents heat loss in large spaces.
• Redundant Safety: Dual thermostats provide precision control and protect against low water levels or overheating.
• Easy Maintenance: Features an oversized drain for rapid cleaning and simple fill-and-plug operation (no plumbing required).

Why Choose the Chattanooga M-4 Mobile Unit?

The Chattanooga M-4 is the ultimate solution for high-demand clinical workflows. In environments where dozens of patients require thermal therapy daily, smaller units often struggle to reheat fast enough. The M-4 eliminates this bottleneck with its massive 27-gallon reservoir, ensuring a fully heated bentonite clay pack is always ready the moment you need it.

Built from high-quality, corrosion-resistant stainless steel, the M-4 is designed for decades of clinical service. Despite its large capacity, it is engineered with a compact footprint, requiring only 20" x 32" of floor space. The fiberglass-insulated walls keep the internal water between 160°F and 165°F while ensuring the exterior remains safe for staff and patients to be near.

The unit is fully self-contained, meaning it does not require a dedicated water line or drain hookup. Its "plug-and-play" 110-120V operation makes it easy to integrate into any existing facility. For over 70 years, the M-4 has been the gold standard for treating chronic pain, arthritis, and muscle spasms in the world's leading medical institutions.

Frequently Asked Questions (FAQ)

How long does the M-4 take to reach therapeutic temperature?

Due to its large 27-gallon capacity, the M-4 takes approximately 8 hours to reach 160°F from a cold start. For this reason, most facilities choose to leave the unit on 24/7 to maintain immediate readiness.

What comes included with the M-4 unit?

The M-4 unit comes complete with an internal rack and 24 Standard Size (10" x 12") Hydrocollator Moist Heat HotPacs, providing everything you need to begin treatments out of the box.

Is this unit difficult to move when full?

While the unit weighs approximately 340 lbs when full, the high-quality 3" swivel casters are specifically designed to distribute that weight for smooth, one-person maneuverability on flat clinical flooring.

Key Features

• Massive 27-Gallon Tank: The largest in the Chattanooga mobile lineup.
• Immersion Heating Element: Provides rapid, consistent heating throughout the entire water bath.
• Silent Rubber Casters: Maintains a quiet clinical environment during transport.
• Stainless Steel Racks: Designed to organize and protect 24 packs for easy access.

Key Specifications

• Mains Power: 110-120 V, 50/60 Hz
• Power Consumption: 1500 W
• Tank Capacity: 27 Gallons (102 Liters)
• Dimensions: 33" H x 35" L x 20" W
• Weight: 132 lbs (Empty) / Approx. 340 lbs (Full)
• Safety Tests: UL 60601-1 and CAN/CSA C22.2 No. 601.1 certified

Who Is This Mobile Unit Best For?

• Large physical therapy clinics and hospital rehabilitation departments.
• Professional and collegiate sports medicine facilities.
• Clinics that utilize a high volume of oversized or spinal packs concurrently.
• Facility managers looking for the most energy-efficient, high-capacity heating solution.

Florida Showrooms & Nationwide Delivery

The Medical Department Store is an authorized dealer of Chattanooga clinical products. Visit our Florida locations to see the M-4 Unit in person or order online for fast, reliable shipping across the country.

Call 866-218-0902 for expert assistance today.