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Brush cutter head

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mzt:
That's a 30cc efco 8300. A bit taxing on the machine, but I've never had issues in years of use.

As for the blades in the previous pictures, they're chunks of worn out chainsaw blades facing their final re-use. Next, I can only think about the metal recycler.
After using them for a while, I decided that grinding away the now unused cutting teeth gives more duration.

My bushes are rarely thicker than 3/4", I don't think there were any 1"1/2.
If You're really curious about that head eventually cutting them, please, let me know. I will happily let 'em grow they reach the required thickness.
Won't be quick, but we will know for sure in a few years.

Marcello

Jonny:
The thing that concerned me is the weight of the three blades, centrifugal force etc.
Putting strimmer head on with twin nylon before its cut to lengths, i really notice a lack of response, takes ages to build up speed. When cut to lengths by the guard clipper, it revs a lot more freely. Broken nylon or one nylon broke off it revs pretty instant.

One thing i did notice straight away was engines willingness to rev quickly when the cheap 3 pronged HSS blade was bolted on. Dont last long though so a file joby needed after use. Similar to these, think 10"? http://www.ebay.co.uk/itm/PETROL-STRIMMER-TRI-ARC-BLADES-X-5-FIT-RYOBI-JCB-BRUSHCUTTER-/180864428454?pt=UK_Home_Garden_GardenPowerTools_CA&hash=item2a1c5c29a6
Bought for clearing rhodadendrum bushes and bracken interlaced in to. Known the bushes twenty years they were too large then, how old no idea. A lot of the work i used my Dewalt 18v repo saw as i had the two chainsaws took off me :lol:

Just came across this http://www.ebay.co.uk/itm/BROGIO-BRUSH-CUTTER-WHIPPER-SNIPPER-HEAD-LINE-TRIMMER-METAL-BLADE-BRUSHCUTTER-/300668802237?pt=LH_DefaultDomain_15&hash=item460141d4bd

mzt:
Nylon wire heads definitely have a quicker response. I rarely use the rotating chainsaws at maximum speed, they do a fair work at about half throttle.

The three-arc-blade-brushcutter in the first link is what I called 'cutting disk'.  I have one, maybe it has four blades, but never used it since I made the new head: never liked the tendency it had to screw itself into the thick bushings and pull the cutter from my hands when they were to thick to cut. A real pain to use, when they were mixed with tall grass.

The brogio cutter of the second link maybe more durable than chainsaw portions, not that I could not fit ordinary chains to my head. Never tried.
Sure it comes at a price.
Last but not least, making my own head gave me a good excuse for a couple of free afternoons in the shop. "Priceless". :D

Marcello

Jonny:
Not knocking it Marcello, far from it.
Just pointing out it probably needs to bea  much bigger engine to power. Unless you wait for it to build up speed.

I might try one two pronged hardened steel around 250 to 300mm dia.

redhunter350:
Hi all I notice it has been pointed out by Mzetati that this device could be dangerous but I would point out it can be fatal.

There was an accident close to where I live last year with just such a device -- some men were clearing rough ground and a link broke  on a similar commercially made unit, the link killed a man who was some 60 yards away from the person using the strimmer.

Needless to say these units are no longer in use by the contractors and a warning was issued by the coroner of the dangers of these units.

A tragic accident but if you do choose use it make sure there is no one within 200/300 yards when using or better stick to a blade or line!!!!  :(

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