Robinair ROB-75700 Cooltech Coolant Exchanger
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Robinair ROB-75700 Cooltech Coolant Exchanger - 10 Minute Exchange Process
The Robinair COOLTECH Coolant Exchanger is a pneumatic fluid exchange system designed for professional automotive technicians who need to complete coolant exchanges quickly and safely. With a 10-minute exchange process, this unit operates on shop air alone - no electricity required. The engine-off feature eliminates safety concerns with moving pulleys and fan blades, while the vacuum mode enables safe pressure relief in hot systems. A 15-gallon internal waste tank with sight glass and two 5-gallon external supply tanks provide flexible onboard storage for different coolant types.
Robinair COOLTECH Features
10-Minute Exchange Process
Complete coolant exchange in a single 10-minute cycle with the engine off. This rapid cycle time eliminates waiting for engine warm-up and allows technicians to perform multiple exchanges per shift, significantly increasing service bay productivity and customer satisfaction.
Engine-Off Safety Feature
Removes pulleys, belts, and fan blades from the service equation entirely. Technicians can safely disconnect the cooling system without engine startup, reducing risk of injury and improving overall shop safety protocols during routine maintenance work.
Vacuum Mode Push-Pull Exchange
Creates a controlled push-pull pressure exchange that allows technicians to safely remove high pressure from hot cooling systems. Works on both pressurized and non-pressurized systems, giving shops flexibility with all vehicle types and cooling system designs.
Shop Air Powered Operation
90 psi shop air drives the entire exchange and pump process. No electrical hookup required means easy repositioning between service bays and no electrical compliance concerns. Most shops already have adequate air supply infrastructure in place.
15-Gallon Waste Tank with Sight Glass
1.5 gallon internal capacity with a clear sight glass shows coolant fill level at a glance. The 2 gpm pump transfers used coolant safely. Large tank capacity reduces service interruptions and allows continuous operation for busy shops handling multiple vehicles daily.
Dual Supply Tanks for Flexibility
Two external 5-gallon supply tanks mount directly on the unit with graduations for easy level reading. On-board storage allows technicians to keep two different coolant types ready without making trips to the stock room, improving efficiency during mixed-coolant service operations.
Robinair COOLTECH Applications
- Scheduled Coolant Flush Services: Complete coolant system flushes on any vehicle during regular maintenance intervals with the engine off and minimal downtime.
- Cooling System Pressure Testing: Integrated leak check feature tests cooling system integrity before refilling with new coolant, preventing repeat service calls.
- Transmission Cooler Flush: The vacuum mode safely handles pressurized transmission cooler lines on modern vehicles without system damage or fluid spillage.
- Multi-Coolant Fleet Maintenance: Two separate coolant tanks allow service facilities to maintain different coolant types for different vehicle manufacturers and engine requirements.
- High-Volume Service Centers: Fast 10-minute cycle time and hands-off waste transfer enable shops to process multiple vehicles per technician per day without safety compromises.
Robinair COOLTECH Specifications
| Specification | Value |
|---|---|
| Internal Waste Tank | 15 gallons |
| External Supply Tanks (qty 2) | 5 gallons each |
| Pump Flow Rate | 2 gpm |
| Exchange Cycle Time | 10 minutes |
| Specification | Value |
|---|---|
| Height | 47" |
| Width | 26" |
| Depth | 33" |
| Shipping Weight | 207 lbs |
| Specification | Value |
|---|---|
| Power Supply | 90 psi shop air |
| Electrical Requirement | None |
| Air Hose Length | 8 feet |
| Cabinet Material | Impact-resistant polypropylene |
| Component | Specification |
|---|---|
| Medium Step Adapters | 2 included - fits 1-1/4", 1-3/8", 1-1/2" hose |
| Large Step Adapters | 2 included - fits 1-3/4", 2", 2-1/4" hose |
| Hose Storage | On-board storage for 96" hoses |
Robinair COOLTECH Installation Requirements
Shop Air Supply
Pressure: 90 psi minimum consistent supply. Volume: Your existing shop compressor infrastructure should provide adequate air for operation. Most automotive shops already have 90+ psi compressor systems that will power this unit without upgrades. No drains or special air filtration needed beyond standard shop air.
Location and Space
Footprint: Unit occupies 26" W x 33" D. Position in accessible service bay area with clearance for movement. Large inflatable tires enable easy repositioning between bays. Keep unit within range of shop air supply hoses - standard 50-100 foot service hoses work well.
Vehicle Access Requirements
Height clearance: Unit stands 47" high. Position to allow easy access to vehicle coolant system connections. Most shops store unit against a wall or in a corner when not in use. Connectors reach most vehicles when pulled into center position of service bay.
Setup and Operation
Install the two external supply tanks by following included adapter instructions - no hoses to cut. Connect shop air hose to unit, connect adapters to vehicle coolant system ports, and perform system pressure test. Detailed operation manual provided with all safety precautions and step-by-step procedure documentation.
What's Included with the Robinair COOLTECH Coolant Exchanger
- ROB-75700 Coolant Exchanger unit with impact-resistant cabinet
- Two 5-gallon external coolant supply tanks (removable, replaceable)
- 15-gallon internal waste tank with sight glass
- Two medium step adapters (fits 1-1/4", 1-3/8", 1-1/2" hoses)
- Two large step adapters (fits 1-3/4", 2", 2-1/4" hoses)
- 8-foot air hose for shop air connection
- Installation and operation manual with troubleshooting guide
Optional Accessories: Replacement supply tanks (ROB-75370, 7-gallon capacity), quick coupler sets, extended dip tubes, siphon hoses, and coolant dyes for system identification.
Not Included: Shop air compressor, vehicle connectors beyond those listed, professional installation labor, or system disposal of used coolant beyond waste tank storage.
Robinair COOLTECH Shipping and Delivery
Freight Shipping
Coverage: Free freight shipping to commercial addresses in the 48 contiguous United States. Lead Time: 5-10 business days after order. International: Contact sales for international shipping quote and lead time.
Delivery Requirements
Unloading: Forklift or loading dock recommended - unit weighs 207 lbs. Delivery Type: Curbside delivery standard; notify carrier if special delivery instructions needed. Inspection: Inspect all packages for damage before accepting delivery. Photograph and note any damage on delivery receipt.
Returns and Restocking
Returns accepted within 30 days of delivery if unopened in original packaging with receipt. A 20% restocking fee applies to returned units. Buyer is responsible for return freight costs and insurance. Contact customer service to initiate return authorization.
Robinair COOLTECH Warranty
Limited Manufacturer Warranty
Robinair stands behind this equipment with comprehensive coverage for defects in materials and workmanship.
- One Year: Full coverage on all parts and labor for manufacturing defects
- Limited Lifetime: Cabinet and structural components against defects under normal use
Requirements: Warranty requires proof of purchase date and covers defects only - not wear items, user damage, misuse, or neglect. All warranty service handled through authorized Robinair dealers. Proof-of-purchase documentation must be provided to manufacturer for any warranty claim.
Documents
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Questions About the Robinair COOLTECH?
Our equipment specialists can help with installation planning, shop air requirements, specifications, and product selection for your service facility.
Robinair COOLTECH FAQ
How long does the complete coolant exchange take with the ROB-75700?
The entire coolant exchange process takes approximately 10 minutes from initial connection to final refill completion. This rapid cycle time significantly increases service productivity - a single technician can complete 4-6 exchanges per 8-hour shift. The engine-off operation means customers don't need to wait while engines warm up, reducing overall service bay time even further.
Do I need electricity to operate the COOLTECH Coolant Exchanger?
No electricity is required. The unit operates entirely on 90 psi shop air, which powers both the exchange process and the 2 gpm waste tank pump. This eliminates any electrical installation concerns and makes the unit portable and repositionable throughout your shop without extension cords or electrical wiring.
What shop air pressure and volume are required?
The unit requires a minimum 90 psi shop air supply. Standard automotive shop compressors (typically 5-10 horsepower with 40-60 gallon tanks) provide adequate pressure and volume. Your existing compressor infrastructure almost certainly supports this equipment - no compressor upgrade is necessary for most shops with established air systems.
What are the waste tank capacity and how often needs emptying?
The internal waste tank holds 15 gallons of used coolant. The sight glass shows the fill level clearly. Most shops empty the waste tank after 10-15 vehicle exchanges depending on system sizes. The convenient "hands-off" transfer valve safely drains used coolant into an external bulk tank without spilling or technician contact with used fluid.
Can the COOLTECH handle both pressurized and non-pressurized cooling systems?
Yes. The vacuum mode push-pull exchange process works safely on both pressurized (most modern vehicles) and non-pressurized systems. The leak check feature allows testing for cooling system integrity before refilling regardless of system type. This versatility makes the unit suitable for full-service maintenance of any vehicle's cooling system.
What about safety with moving engine components like belts and fans?
The engine-off feature is the key safety advantage - technicians perform the entire exchange without engine startup. This eliminates any risk from rotating pulleys, belts, or fan blades. The vacuum mode safely relieves pressure on hot cooling systems without opening connections manually, preventing spray hazards and burn injuries from hot coolant.
Can I store two different coolant types on the unit?
Yes - two external 5-gallon supply tanks mount directly on the unit with graduations showing fill levels. This allows you to keep two different coolant types ready (e.g., OAT coolant for GM vehicles and HOAT coolant for Asian brands). Supply tanks are easily removable and replaceable, allowing you to stock whichever coolant types your customer base requires.
How much space does the COOLTECH require in the service bay?
The unit occupies 26" width by 33" depth. Height is 47". Large inflatable tires allow easy repositioning between service bays when not in use. Many shops store the unit against a wall when not actively in service. Position it with 2-3 feet clearance from obstacles for easy hose access when connecting to vehicles.
Is there a leak check feature to test cooling systems?
Yes. The integrated leak check feature allows technicians to pressurize the cooling system before refilling with new coolant, testing for leaks prior to completing service. This prevents repeat service calls from customers with hidden leaks and ensures you've properly diagnosed cooling system integrity before charging for coolant service.
What warranty coverage is included with the COOLTECH?
The ROB-75700 includes a one-year limited manufacturer warranty covering all parts and labor for defects in materials and workmanship. The cabinet and structural components have extended limited lifetime coverage under normal use conditions. Warranty requires proof of purchase date - contact Robinair through authorized dealers for any warranty service claims.
Can replacement supply tanks be purchased separately?
Yes. Replacement 7-gallon supply tanks (part number ROB-75370) are available for purchase as accessories. These are easily removable and replaceable, allowing you to expand onboard coolant storage or maintain backup tanks. Accessory tanks ensure you're never without adequate coolant supply during high-volume service periods.
How does this compare to manual coolant drain and refill procedures?
The COOLTECH exchanges coolant completely and safely in 10 minutes versus 30-45 minutes for traditional drain-and-refill procedures. It eliminates customer engine warm-up time, removes spill hazards, and provides pressure testing capability. The significant productivity gain often pays for the equipment investment within 6-12 months for busy shops.
California Proposition 65 Warning
WARNING: This product can expose you to chemicals including styrene and vinyl chloride, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.p65warnings.ca.gov.
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