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Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

Tree Work: Merlo Roto with Treecracker

[Edit: It’s a “Woodcracker”.]

The best bid on a recent tree removal project replaced most of the usual crew with a Merlo Roto telehandler:

Tree Work - Merlo setup
Tree Work – Merlo setup

The orange gadget on the end of the boom is a Woodcracker manipulator with a terrifying switchblade chainsaw:

Tree Work - Merlo Woodcracker - rear
Tree Work – Merlo Woodcracker – rear

The saw has hydraulic motors, so you can hear the blade ripping through the wood.

The jaws above the saw hold the piece during the cut:

Tree Work - Merlo Woodcracker - side
Tree Work – Merlo Woodcracker – side

Then lift it away:

Tree Work - Merlo Woodcracker - cut lift
Tree Work – Merlo Woodcracker – cut lift

The boom has a 115 foot vertical reach, so it can remove entire treetops:

Tree Work - Merlo Woodcracker - align
Tree Work – Merlo Woodcracker – align

Then align the branch with the chipper’s gullet and ram it into the feed rollers, with no intervention from the ground crew:

Tree Work - Merlo - chipper feeding
Tree Work – Merlo – chipper feeding

The Woodcracker chainsaw isn’t quite long enough for the trunk, so the jaws stabilize the trunk during a manual cut:

Tree Work - Merlo Woodcracker - trunk support
Tree Work – Merlo Woodcracker – trunk support

Then haul the whole thing away:

Tree Work - Merlo Woodcracker - trunk lift
Tree Work – Merlo Woodcracker – trunk lift

The Merlo can lift 11,000 pounds near the middle of its range, with a 1600 pound limit at the maximum horizontal reach and 5500 pounds at 115 feet vertically. As far as I can tell, nothing about this project came anywhere close to the machine’s limits.

The day arrived with a severe thunderstorm watch, but the main part of the storm passed far north of us. The local power company keeps this company on speed dial and called them for emergency work in the wake of the storm, so the Merlo left early and the remaining crew used a bucket truck to take down the last tree in old-school style.

The Merlo is staggeringly expensive, but lets one operator take down an entire tree without any climbers or riggers. I suspect the reduction in crew size (and insurance premiums) pays for the machine in short order; the crew was less than half the size involved in a neighbor’s project with another contractor.

Highly recommended!

Merlo’s promotional video has comparisons with similar machines and I’m sure you could waste an entire afternoon on such things. For sure, I didn’t get anything else done that day.

Comments

4 responses to “Tree Work: Merlo Roto with Treecracker”

  1. Mitch Berkson Avatar
    Mitch Berkson

    That’s real entertainment. I didn’t see a Buy Now button though. How did you discover what it costs?

    1. Ed Avatar

      One of the videos had an interview with a guy who kinda-sorta intimated the thing set him back around half a megabuck and was worth every penny. Idly perusing the used equipment lists suggests that’s just about right, as the smaller units seem to be upwards of a quarter megabuck without the switchblade chainsaw.

      Not something I need, but … wow … talk about having the right tool for the job!

  2. RCPete Avatar
    RCPete

    Dean Ing did a story featuring a tree cutting machine (his was set up to walk as an exoskeleton) with clamps and chainsaws much like the Woodcracker. It’s nice seeing reality catching up to science fiction. IIRC, the story is “Malf”.

    1. Ed Avatar

      [rummages in library shelf]

      Well, dang, there goes the rest of my evening.

      That’s the only story I remember from that book, which probably says something about my upbringing. :grin: