Self-adjusting crimping pliers - GIF

**Altair** · Jun 14, 2021, 06:07 AM

Self-adjusting crimping pliers for end sleeves.

Previously:

Duct crimping tool - GIF
Multi-core cable stripping and crimping machine - video
Battery-powered hydraulic crimping tool - GIF
Pipe crimping tool - GIF
Bucket lid crimping tool - GIF

**desbromilow** · Jun 15, 2021, 03:39 AM

my iris style bootlace crimpers never seem to "crimp" the ferrule as tightly as the older style "crush it into a small channel" type. When I was on the tools, I'd find every second bootlace would slide off the cores, when crimped with the iris.
I suspect it was because we couldn't get a force feedback quite the same way as the ratchet type which auto released once a certain force value had been met.

**hemmjo** · Jun 15, 2021, 05:14 AM

I must say I am disappointed in the level of crimp achieved with that fancy crimper. I was expecting it to squish all of the space from between the wires and even force the strands to deform a bit as they are squished together, as would be done with a proper crimper

**mwmkravchenko** · Jun 15, 2021, 08:18 AM

Originally Posted by hemmjo

I must say I am disappointed in the level of crimp achieved with that fancy crimper. I was expecting it to squish all of the space from between the wires and even force the strands to deform a bit as they are squished together, as would be done with a proper crimper

Yep. Maybe there is a setting. Because there are different sized ferules.

**nova_robotics** · Jun 19, 2021, 08:03 PM

Originally Posted by mwmkravchenko

Yep. Maybe there is a setting. Because there are different sized ferules.

They auto adjust. There's no settings on the device. You just squeeze.

Know what? I'm going to make a video. Gotta go to the shop. Just a sec...

**nova_robotics** · Jun 19, 2021, 08:36 PM

Here you go. I'm not 100% sure they're the same crimpers as above, but they look very similar. This is how they work:

**nova_robotics** · Jun 19, 2021, 08:02 PM

Originally Posted by hemmjo

I must say I am disappointed in the level of crimp achieved with that fancy crimper. I was expecting it to squish all of the space from between the wires and even force the strands to deform a bit as they are squished together, as would be done with a proper crimper

I own a set of these, or ones that are extremely similar. I think they were just doing that for the purpose of making a video for people who don't understand what a ferrule is for (office clipboard warriors and purchasers). They really do squish the crap out of a ferrule.

**Toolmaker51** · Jun 20, 2021, 11:02 AM

Up to now, I crimp the more common way, but only need terminals. Are ferrules the male connection to wiring blocks?
With 100's of each in near [sort of] future, a tool dedicated to fast secure connections would be worthwhile investment.
Does it open far enough to extract over a ring or fork terminal, or just works on ferrules?

**nova_robotics** · Jun 20, 2021, 11:42 AM

Originally Posted by Toolmaker51

Up to now, I crimp the more common way, but only need terminals. Are ferrules the male connection to wiring blocks?
With 100's of each in near [sort of] future, a tool dedicated to fast secure connections would be worthwhile investment.
Does it open far enough to extract over a ring or fork terminal, or just works on ferrules?

Ferrules make connections to blocks 100x better. It'll change your life. No more wires slipping out, no more frayed strands shorting, and it provides huge vibration and wire breakage resistance because of the built in strain relief. And it's super fast. Plus it just makes it look professional.

It'll work on smaller spade, fork and butt connectors. Ring connectors are not going to pass through the jaws. But there are lots of crimpers floating around. You can probably find a larger set. These are just the el cheapo ones I found on that jungle website.

**desbromilow** · Jun 21, 2021, 12:36 AM

Originally Posted by Toolmaker51

Up to now, I crimp the more common way, but only need terminals. Are ferrules the male connection to wiring blocks?
With 100's of each in near [sort of] future, a tool dedicated to fast secure connections would be worthwhile investment.
Does it open far enough to extract over a ring or fork terminal, or just works on ferrules?

my iris type were bought from RS and work similar to the video
my ratchet type are the same as https://www.cabac.com.au/products/to...pers/16101505# and are designed for use on bootlace ferrules only, but could work on some types of lug terminals... in fact I know they work on the non insulated ones since I've smooshed them in that several times for quick work.
My standard linesman pliers have an insulated terminal crimper "slot" on the inside of the handle side of the pivot - good to 10 mm2 lugs, and they work very well.
above 6mm2 I then also have the option of a cheap hydraulic crimp set, but that set is limited to non-insulated terminals of all flavours up to 150mm2
most of my work has been in the 0.5 - 16mm2 range, so the hand tools get more use than the hydraulic set. - for instance the EDM I made a while ago was done with crimp connections for all spark wires, and they were based on 2.5mm2 conductors crimped with the linesman pliers.

I see the appeal of the iris style, but my RS branded set do not close tightly enough to be useful in any application.