LFGUD 16 Ton Manual Quick Hydraulic Crimping Tool, 8 AWG to 600 MCM Blue Hydraulic Wire Crimper Battery Cable Lug Terminal Crimping Tool with 13 Pairs of Dies

Was using a hammer crimping tool but this is so much nicer. Not as simple to use however not hard and well worth the quality results and extra effort. Very pleased with this for working on the large size cables I need to crimp for my solar system setup.

big boy! what I like its just need about 3 times to pump handle to crimping and I can rotate the head of crimpholder in any comfortable position which I need depends on situation

Received this today, and I was so excited to review, I ran to the workshop! Be aware, this is not a light tool...the sturdy blue plastic case with everything in it weighs 14 lbs. Also, the brand name was different than LFGUD...it says YQK-300K on the box and instructions, but everything looks the same as in the Amazon marketing pics.The idea behind this tool is that the hydraulic press puts up to 9 tons of pressure on the copper wires and copper fitting which fuses all them into a solid block of copper. The press comes with various die sizes so you can do a wide range of thick wires. The "smallest" wire is 1/8 of an inch, all the way up to 600 MCM. There are not a lot of wires in your house this big, so it is mostly for industrial applications. Speaking of dies, the instructions that come with the tool are sparse, and they don't actually say the AWG sizes. It is very confusing, so refer to the 5th photo provided by the seller for the die chart (I had to print it off).So away I went to my shop to grab a 4 AWG wire and eyelet to check this bad boy out! First thing I discovered was I needed four hands...two hands to hold the wire and eyelet in place in the die, and the other two hands to operate the press. I had selected the proper die on the chart for 4 AWG which was the #25 die. It was too big, and after crimping to max, the wire just fell out of the cup. So I grabbed the next smaller size which was die #16, and that did the trick! VERY TIGHT crimp, wire impossible to pull out of the eyelet. I grabbed a hacksaw to cut the eyelet open to see just how good of a crimp this gave...and it is SOLID! As you can see from the pics, the individual strands of copper wire and the eyelet are simply one block of copper (the striations are from the hacksaw blade). Mission accomplished!What would you use this for? Well, higher end sound systems in cars have some fairly thick wires, as well as the power cables to your batteries. In the past I used an "anvil" type of crimper to do the same thing and worked well, but this is a superior crimp and much simpler to use. If you have larger power equipment, then this is what you want crimping the wires versus trying to solder them together. Great product.

This crimper comes in a very nice blow-molded case with a wide array of die sizes. The #8 and #10 dies are awkwardly loose and without a compartment. I would have been happy to see fewer dies, but a designated location for each rather than having to move loose dies to put the tool away.This particular model is capable of crimping way beyond typical residential and marine wire sizes, but it does include many dies that are common as well, and certainly has ample power to cold forge the wire end. The pumping action is smooth and has plenty of leverage. The pressure relief valve is also very easy to work, and bleeds off pressure smoothly. It is very easy to change out dies as well.My primary concern with this tool is that the documentation doesn't help much with mapping wire gauges to die marking. You can close that gap with trial and error, or by grabbing the chart posted on the product page's images, but that information should be included in the documentation set. This is a learning curve issue though, and doesn't take away from the otherwise well-made, powerful, and versatile tool.

This Hydraulic Crimping tool is well equipped with a full array of die sets. It is well built a appears to deliver all the pressure that is advertised. It is simple to use, change die sets and can be mounted in a vice to free up one hand to position cable ends as needed. The head can be rotated 90deg. as needed. The storage box is generous and does a good job of protecting the tool set. I was happy to see the extra set of seals and o-rings. I am dropping a star because it has no instructions for servicing in it's manual or from the website, which is critical in keeping oil level up and for the life of the tool. My video shows an additional action that can be available to the user. If you flip the smallest size dies outward and install them, they make the most contact with the piston and pin. Now the flat back surfaces give you a pair of anvil or flat surfaces to use as a press. Very handy. It will be simple to make my own custom shape dies for special needs. This tool should last past my lifetime. I will raise the stars to 5 when I get a service manual and then post a quick set of instructions.=I was able to communicate with the supplier and they sent me a very short video of opening up the tool for fluid service. There was no help with instructions for replacing the seals, I'm sorry to say. I put together a short video on how to access oil tank reservoir but it won't post as I am limited to one video. Clamp the black body section in a vice so the the crank rod and the open/close rods don't get damaged and point upward the solid blue handle (that has the grip on it). You can use a pipe wrench or pliers to twist off the blue handle from the black body. When you lift off the handle, the long neck reservoir is exposed. It has a press in plug on it's top that you have to work off. It is not threaded but fits tightly. That is your check fluid and add fluid location. This gets a very low 5 star rating because of poor instruction/service information.