The disclosure discloses a cutterhead assembly of a branch grinder, including a cutterhead body, a center shaft disposed in a center of the cutterhead body and at least two installing shafts circumferentially distributed by using the center shaft as an axis, each of the at least two installing shafts is successively provided with a limiting plate, a first blade, a first bush, a second blade and a second bush from top to bottom, the first blade and the second blade are in clearance fit with a corresponding installing shaft in the at least two installing shafts, a center of the limiting plate is positioned at an upper end of the center shaft and a gap is kept between the limiting plate and an upper end of the first blade, an outer end of the limiting plate is stretched into the installing shafts and fixed, through the above installation, the first blade and the second blade can be completely rotated in 360 degrees relative to the installing shafts, in a circumferential rotating process of the blade, shredded wood can be taken out from the center of the cutterhead body, and a problem, that material blockage is caused to affect a cutting effect of the cutterhead assembly due to the material is stacked in the center of the cutterhead body 1, is avoided.

A working machine may include a pipe, a body unit, a tool unit, a shaft, and a speed increaser. The body unit may be disposed at a rear end of the pipe and include a prime mover. The tool unit may be disposed at a front end of the pipe and include a front tool. The shaft may be disposed inside the pipe and be configured to transmit power of the prime mover to the front tool. The speed increaser may be disposed between the shaft and the front tool. The speed increaser may be configured to make a rotational speed of the front tool higher than a rotational speed of the shaft.

A pole saw apparatus includes a saw blade, a pole, and a tubular adapter connecting the saw blade to the pole. The adapter includes an obround blade-receiving end that stably telescopingly engage sides of the blade-receiving end, with bolts fixing the blade on the adapter. The adapter also includes a pole-engaging end that is cylindrically shaped to telescopingly engage the anchoring end of the pole. A friction clamp includes a transverse shaft extending through the pole, the shaft being shaped to slide into longitudinal slots in the pole-engaging end of the adapter and then rotate into circumferential slots where it is not longitudinally removable. A rotatable cam handle on the clamp is manipulated to create circumferential friction to hold (or release) the adapter on the pole. The blade, adapter and pole align along a common centerline for robust and balanced use.

A high reaching pruning apparatus is provided. The high reaching pruning apparatus has an elongated telescoping pole, a foot brace and a hook for grasping a tree limb. The high reaching pruning apparatus is suitable for easily pruning and trimming tall trees.

The climbing palm tree trimmer may ascend and descend a tree trunk of a palm tree in order to trim the top of the palm tree. A cutting ring may rotate within a housing ring so that a plurality of blades projecting upwards from the cutting ring may cut trimmings from the palm tree. The cutting ring may separate such that the cutting ring may be placed around the tree trunk and reassembled. The housing ring may likewise separate such that the housing ring may be placed around the tree trunk and reassembled. A plurality of drive units may move the climbing palm tree trimmer up or down the tree trunk. Up and down movements and activation of the cutting ring may be controlled from the ground using the trimmer control box.

Disclosed herein are devices, methods, and methods of making devices for solving the problem of providing vegetation maintenance along easements, right-of-ways, roads, paths, and landscapes. In one embodiment, a saw attachment includes a boom assembly and a motor assembly mechanically coupled with the boom assembly. The saw attachment also includes a circular saw blade mechanically coupled with the motor assembly and a mount assembly mechanically coupled with the boom assembly. The mount assembly is configured for attachment to a loader having lift arms and resident on a host vehicle. In certain embodiments, the host vehicle may be a skid-steer, a tracked loader, or the like. In other embodiments, the host vehicle may be a tractor, a telehandler, or the like.

Disclosed herein are devices, methods, and methods of making devices for solving the problem of providing vegetation maintenance along easements, right-of-ways, roads, paths, and landscapes. In one embodiment, a saw attachment includes a boom assembly and a motor assembly mechanically coupled with the boom assembly. The saw attachment also includes a circular saw blade mechanically coupled with the motor assembly and a mount assembly mechanically coupled with the boom assembly. The mount assembly is configured for attachment to a loader having lift arms and resident on a host vehicle. In certain embodiments, the host vehicle may be a skid-steer, a tracked loader, or the like. In other embodiments, the host vehicle may be a tractor, a telehandler, or the like.

An automated farm includes a cloning room and an environmentally controlled nursery with a storage and retrieval system, child storage racks, and child conveyor trays. The automated farm has environmentally controlled grow rooms, environmentally controlled lighted and unlighted flower rooms, a trimming or pruning room, and a harvest room. The automated farm includes specialized parent plant pots with training devices, and tray and trellis systems with rotation plant holders and removable trellis combs. Plant tending robots are configured to clone, trim, prune, harvest, and maintain plants. The automated farm includes a transport mechanism configured to transport the child conveyor trays, the parent plant pots, and the tray and trellis systems between the cloning room, the nursery, the grow rooms, the flower rooms, the trimming or pruning room, and/or the harvest room. The automated farm also includes a farm control and data management system.

An automated farm includes a cloning room and an environmentally controlled nursery with a storage and retrieval system, child storage racks, and child conveyor trays. The automated farm has environmentally controlled grow rooms, environmentally controlled lighted and unlighted flower rooms, a trimming or pruning room, and a harvest room. The automated farm includes specialized parent plant pots with training devices, and tray and trellis systems with rotation plant holders and removable trellis combs. Plant tending robots are configured to clone, trim, prune, harvest, and maintain plants. The automated farm includes a transport mechanism configured to transport the child conveyor trays, the parent plant pots, and the tray and trellis systems between the cloning room, the nursery, the grow rooms, the flower rooms, the trimming or pruning room, and/or the harvest room. The automated farm also includes a farm control and data management system.

A high reaching pruning apparatus having an elongated telescoping pole, a foot brace and a hook for grasping a tree limb. The high reaching pruning apparatus has an opening in the hook for receiving a saw blade.