How many crimps can you complete on a complete battery charge?

On average you can achieve 100-150 crimps per charge depending on the size fittings being crimped. Each kit comes with 2 Makita Lithium-ion batteries and a rapid charge charging system. To prevent any downtime, it is recommended that you have both batteries charged before going to the jobsite and to have one charging while the other is in use.

Can you use ZoomLock to crimp to aluminum, steel, or stainless steel?

No, ZoomLock is specifically designed for copper to copper connections. Connecting to dissimilar metals can cause formicary corrosion issues that could cause a failure.

What material is the o-ring made of ?

The o-ring is a highly engineered HNBR Parker o-ring that has been used in HVAC applications by OEMs and suppliers for many years with no issues.

What is the expected life of the o-ring in the system?

The expected life of the o-ring that stays within the product specifications for temperature and pressure should be 30 years.

Are there any shelf life concerns?

No, the shelf life of the product is estimated at or above 30 years.

Is there a concern about ice building up and then thawing under fitting in a horizontal or vertical configuration?

No, ZoomLock has been thoroughly tested in freeze/ thaw applications with over 10,000 cycles completed in both vertical and horizontal configurations with no leakage concerns.

Can you braze the fitting after crimping it?

No. Trying to braze the fitting will very likely melt the o-ring material and thus introduce contaminants into the system that could cause other system issues.

Are there any concerns with corrosion due to coastal applications, cleaning agents, or off gassing of produce/vegetables?

No, ZoomLock has gone through a battery of corrosion testing, completing over 2,000 hours of salt spray testing without failure, which proves the resilience of the product.

How do you slide insulation over these fittings (the flare will grab insulation)?

If the flare of the fitting tends to be a problem, you can smooth the transition over the fitting by adding duct tape around the flared edge of the fitting to the tube.

How do you know when the tool needs to be serviced?

The tool has a red LED on the back of the tool that will blink for 20 seconds after a crimp. When this occurs, take the tool back to an authorized dealer to have the tool analyzed. They will be able to verify if the tool needs to be sent in for service.

What is the expected life of the jaws?

Each jaw has an expected life of 10,000 to 12,000 crimps.

How do you know when the jaw needs to be replaced?

You will know when the jaw needs to be replaced when the contact point between the upper and lower jaw starts to open up/widen. A good indication of failure is when the crimp gauge no longer engages.

Do you have a solution for crimping onto flared tubing like that coming out of the condenser and evaporator on residential units?

No, we do not have a specific product designed to crimp over the flared tubing. However, if there is at least 2 inches of straight copper tubing after the flared end and is accessible with the jaws, we suggest that you cut the flared end off and crimp directly to the tube.

How do I know the correct insertion depth when pushing the ZoomLock fitting onto the copper tube?

Use the depth gauge provided or the chart below to determine the minimum insertion depth. Mark the tubing with a permanent marker to indicate proper insertion depth on every tube.


How much tolerance can the ZoomLock handle on the pipe being crimped?

We know that not all copper tubing is the same, but we have tested ZoomLock with most EN12735-1 conforming copper tube manufacturers with no issues. The tolerance for each tube to ensure a good leak-free joint is +.002/-.007. (Greenmill’s stock of refrigeration copper tube always conforms to EN 12735-1)

Does the o-ring compensate for imperfections in the piping to make a tight seal?

Yes, the o-ring does compensate for small/ minor scratches on the surface of the tube; however, the tubing needs to be inspected prior to use per ASTM B280 and the Copper Tube Handbook published by the Copper Development Association (CDA) specifications. Imperfections in and adjacent to the crimp area could inhibit the joint integrity. These imperfections may include surface scratches, incise marks, and tubing out of round.

The product specifications state that the application temperature limits are -40°F to +300°F / -40°C to +150°C. What happens if we go beyond that limit?

If the application that the fitting is being used in goes beyond the specified limits of the o-ring (-40°F to +300°F / -40°C to +1 50°C) then ZoomLock should not be used in this instance.

Can I use ZoomLock in a transportation application where fitting vibration is high?

Yes, ZoomLock has gone through extensive vibration testing and results are actually better than that of a braze joint. Please review the vibration testing procedure and conclusion for more information.

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