Description

Mastercool 91780
- Heavy-duty charging station
- Includes digital manifold, charging scale, 1.5 CFM cordless vacuum pump and hoses
- Robust steel framework (36 1/4 x 28 3/4 x 25”)
- Reinforced components ensure optimal performance, even in the most demanding conditions
- Equipped with 4 extra-large 10” pneumatic off-road tires, enabling smooth navigation across rough terrain
Heavy Duty Charging Station
The Mastercool Mobile Monster is a heavy-duty workstation built to endure and excel in any environment, from challenging fieldwork to regular usage.
UNMATCHED DURABILITY: With its rugged design and built-to-last construction, this unit is engineered to handle the harshest environments. Its robust steel framework (36 1/4 x 28 3/4 x 25”) and reinforced components ensure optimal performance, even in the most demanding conditions.
FIELD-READY MOBILITY: Say goodbye to equipment limitations. This unit is equipped with 4 extra-large 10” pneumatic off-road tires, enabling smooth navigation across rough terrains and challenging landscapes.
STREAMLINED EFFICIENCY: This unit includes the equipment necessary to perform comprehensive operations ensuring minimal downtime and maximum productivity.
Multiple versions available
Mastercool offers the Mobile Monster in more than one configuration. The chart below provides an overview of the main components in each. Please see the “In the Box” section of each page for more detailed information.
| Part Number | Manifold | Vacuum Pump | Recovery Machine | Hoses |
| 91787 | X | 6 CFM, corded | X | X |
| 91780 | X | 1.5 CFM, cordless | X |
4-Way Aluminum Manifold (Part# 86103-DG)
Mastercool’s 4-way aluminum manifold features ¼” SAE fittings and digital gauges. The digital gauges allow for calculation of over 90 refrigerants. Hand operated valves permit multiple operations including system measuring, recovery, vacuuming, charging, and evacuation.

Electronic Charging Scale with Bluetooth (Part# 98210-BL)
Mastercool’s electronic charging scale with Bluetooth wireless technology features an extra-large LCD display for easy reading from any angle and features three display modes (kgs, lbs, oz). With a high capacity of up to 243 lbs (110 kgs), it is easily one of the best on the market. Included in this package will be the capability to download the free Mastercool Connect app. This will allow for full mobility as activity can be easily viewed on all compatible hand-held smart devices.

18-volt cordless, 1.5-CFM, 2-stage vacuum pump kit (90058-5A)
Mastercool’s cordless vacuum pump kit contains a 1.5 CFM, 2-stage vacuum pump, an 18-volt rechargeable battery and a battery charger. The pump’s Sure-Grip handle provides comfort and portability, and its reinforced base offers extreme shock resistance.

Nylon Barrier Hoses with Standard (1/4” x 1/4”) Fittings
Mastercool Grade 5 hoses have a Nylon Barrier for high-pressure applications. Knurled brass nuts make finger-tightening easy. Hoses are crimped with 8-segment dies for secure fit and maximum durability. Hoses meet all EPA, SAE, and UL requirements for containment of refrigerant.
- 200” Blue Hose
- 200” Red Hose
- 72” Yellow Hose
- 36” Black Hose
HVAC Equipment and Instruments/HVAC Vacuum Pumps | |
|---|---|
| Number of Stages (Pumps) | 2 |
| Vacuum (Vacuum Pumps) | 1.5 CFM |
| Line Power (Pumps) | Battery powered |
HVAC Equipment and Instruments/Refrigerant HVAC/Charging Scale Template | |
| Maximum Capacity | 243 LBS |
| Accuracy | ≤±0.05% of reading |
| Auto Power Off | Yes |
| Auto Zero | No |
Product General Attributes | |
| Warranty | 1 YEARS |
| Power Supply Voltage | 120V 50/60 Hz |







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