Hydraulic Thumb [Komatsu PC130-8]

K-TEC · Sep 19, 2019

hello,

i'm back again, this time searching for advice on purchasing a hydraulic thumb for my excavator. what should i search for? which is the best one? which is the most economic one in terms of cost and performance and maintenance? what are the maintenance like on them, are they high maintenance ? i'm not sure if i will be able to afford a new one, that's why i'm concerned about durability.

K-TEC · Oct 8, 2019

wow no help?

funwithfuel · Oct 8, 2019

What is your intended purpose for that little machine, What kind of some do you want do you want a stiff arm from do you wanna hydraulic from these are all you need to throw out a little more information so that people might be able to give you some help

funwithfuel · Oct 8, 2019

I guess for starters the 1st thing you would want to do is contact HKX for an option Plumbing kits Make sure that you tell them what you're after is bi directional flow that way you'll be able to use your existing Spool you'll have electronical controls and it will integrate smoothly. The next step is the find out what's available near you obviously you don't want to buy something here in the States and haven't exported and then imported and pay all the duties and sit around waiting for everything to clear customs. What products are in your area work JRB paladin these are all things you have to do on your end. When you have a list of names people may chime in from around the world describing their experience with that product and that would help you get a better decision on what you want to do with your machine
Is that machine in the pic what you are going to install on, or is it just a representative picture? If that is it, most of the work has been done.

K-TEC · Oct 13, 2019

funwithfuel said:
What is your intended purpose for that little machine, What kind of some do you want do you want a stiff arm from do you wanna hydraulic from these are all you need to throw out a little more information so that people might be able to give you some help

little excavator you say. what more information is needed? what i want is to know which brands are the best out there in terms of durability. i dont want to order someting cheap off ebay then it gets broken within the first few months of working

K-TEC · Oct 13, 2019

funwithfuel said:
I guess for starters the 1st thing you would want to do is contact HKX for an option Plumbing kits Make sure that you tell them what you're after is bi directional flow that way you'll be able to use your existing Spool you'll have electronical controls and it will integrate smoothly. The next step is the find out what's available near you obviously you don't want to buy something here in the States and haven't exported and then imported and pay all the duties and sit around waiting for everything to clear customs. What products are in your area work JRB paladin these are all things you have to do on your end. When you have a list of names people may chime in from around the world describing their experience with that product and that would help you get a better decision on what you want to do with your machine
Is that machine in the pic what you are going to install on, or is it just a representative picture? If that is it, most of the work has been done.

yes thats my excavator in the picture. it's already plumbed

farmerlund · Oct 14, 2019

solesbees.com/hydraulic_excavator_thumbs.php

I have been using thumbs from these guys for 15yrs. I currently have a hyd one on a Volvo210. There parts guys and customer service are very good. The thumb it self is very well built. I do a a lot of demo and trees and have yet to break mine. Probably not the cheapest out there but very well built.

K-TEC · Oct 15, 2019

farmerlund said:
solesbees.com/hydraulic_excavator_thumbs.php

I have been using thumbs from these guys for 15yrs. I currently have a hyd one on a Volvo210. There parts guys and customer service are very good. The thumb it self is very well built. I do a a lot of demo and trees and have yet to break mine. Probably not the cheapest out there but very well built.

Ok thanks. I am going to check them out and look for a qoute

Excavator Attachment · Oct 29, 2019

we also manufacture hydraulic thumb,our quality is very good and we provide 1 year guarantee.do you still need to purchase it?I attach a photo of our mechanical thumb,please check it.Any interest,please contact me:fandy@bonovo-china.com

K-TEC · Dec 12, 2020

So I finally got a thumb last month. I bought a hydraulic progressive thumb from bedrock machinery. They manufacture their thumbs to fit CAT so I had a few modifications to make to get it to fit to my Komatsu so

K-TEC · Dec 12, 2020

funwithfuel · Dec 12, 2020

Looks good, don't recall seeing that linkage to the thumb like that before.
I am anxious to see it in action . Looks like solid construction.

K-TEC · Dec 16, 2020

funwithfuel said:
Looks good, don't recall seeing that linkage to the thumb like that before.
I am anxious to see it in action . Looks like solid construction.

The added linkage allows for a degree of motion. Where a regular hydraulic thumb may stop after 120° this type with the added linkage will go up to about 200° basically

K-TEC · Dec 16, 2020

John C. · Dec 17, 2020

That's a progressive link thumb. That has been the normal configuration in this area for years. It's meant to form a straight line with the stick when the cylinder is fully extended. You only get problems when the installer puts the cylinder base boss on too far forward and the thumb linkage goes past the line of the stick, over center as it were.

Hydraulic Thumb [Komatsu PC130-8]

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