 |
 |
| CH 260 with Hydraulic Power
Feed |
CH 260 with Self Feed |
| Chipper Model |
CH 260 |
CH 260 HF |
CH 260 OEM |
| Mounting |
3-point hitch |
3-point hitch |
stationary |
| Power Requirements |
540-1000 rpm 40-100HP depending on tree size & species |
600-900 rpm |
| Chipping Disc |
Diameter 41", Weight 560 lbs., boxed double disc |
| Chip Length |
Continuously adjustable between 1/4" to 1" length |
| Knives |
Three 11.8" x 5.5" x .55" full-size knives |
| Anvil |
Adjustable hardened steel anvil |
| Infeed Capacity Round Wood |
10 ¼" diameter |
10 ¼" diameter |
10 ¼" diameter |
| Discharge |
Adjustable 360 degrees, standard discharge height 9
ft. optional height 11 1/2 ft. |
| Feed System |
Direct from knives |
Two hydraulic feed rollers |
Direct feed |
| Production |
3 to 15 tons/hr, 13-52 cu yards/hr, 10-40 m^3/hr. |
| Hydraulic Requirements |
------------------ |
6-15 g.p.m. 2000 psi |
----------------- |
| Shipping Weight |
1430 lbs |
1585 lbs |
1250 lbs |
| PTO Shaft |
A PTO shaft with a built in slip-clutch,
such as the M6SLC is recommended. |
|
Uniform Chips
All Valby CH 260 models
have the same chip mechanism. The chips have to pass through two sets of
blades and an optional crusher screen before they are blown out from the
chipper. This chip mechanism produces exceptionally uniform chips which
can be, for example, augered without further screening.
Double Disc Rotor
The boxed double disc rotor
provides superior rigidity. The disc weighs 560 lbs. and has a diameter of
41". The rugged rotor houses three full-size 11.8" wide knives. The
full-size knives are the key to the Valby chipper's high production.
Adjustable Chip Size
The chip size is continuously adjustable
between ¼" and 1" length. This range covers almost all possible uses of
wood chips. Some typical chip sizes are shown below. Bottom left is ¼"
animal bedding. Top left, 1/2" energy chip. Bottom right, 3/4" pulp chip.
Top right, 1" landscaping chip.
Production
The solid construction of the
rotor enables trees up to 10 ¼" in diameter to be chipped. Chip size and
tree size determine production. The production ranges from 13 to 52 cu.
yards per hour or approximately 3 to 15 tons of chips per hour. The chip
size produced determines how fast the trees are pulled into the chipper.
When producing ¼" chips the tree will feed in about one foot per
second. The feed is about 3 ft. per second for 1/2" chips.
The feed of the Valby chippers is about 10 ¼" at the
anvil. The maximum width of the opening is 24". The thickness and form of
the slab will determine how large a piece can fit in.
The hydraulic feed restricts the slab width
to 10 ¼" as the slabs are fed in on a straight angle to the anvil.
Ease of Operation
The low feeding point ensures
effortless feeding of the chipper. The operator can stand with a straight
back. The discharge is adjustable 360 degrees.
The chipper stands up by itself on the ground and is
easy to hook up or remove from the tractor.
Spherical Roller
Bearings
The high quality bearings enable the chipper to
be used at PTO speeds of up to 1000 RPM. This allows high production and
powerful chip discharge, which is needed when chips are blown into 40 ft.
long trailers.
Interchangeable Feed
Chutes
The CH 260 chipper can be fitted with 4
different feed chutes. The chipper can therefore be used for a
variety of tasks.
All feed chutes are mounted in the same brackets on
the chipper by the bolt-on method. The feed chutes are mounted on a hinge,
so they can be turned to the side for easy access to the anvil and the
knives. There is a lifting loop in the balance point so they can be lifted
off and on with machinery.
F 250 This
feed is featured in the picture on the top of this page on the right hand
side. A control bar runs on top of the feed chute. The feed can be
interrupted by the control bar. The wide feed chute is used for slabs,
poles and other materials that need not be compressed.
HF 231 This feed has
two hydraulic motors which power the feed rollers. The feed rollers can
be powered by hooking up to the tractor's hydraulics or the chipper can by
equipped with an independent hydraulic system which is powered from the
chipper axle.
The hydraulic motors transfer to the
feed rollers up to 10 HP of dragging power to pull in the
material. Christmas trees or other bushy materials feed in with little or
no pruning. Small trees can be fed in with branches and all.
The bottom feed roller is fixed. The top
roller is spring loaded. The top roller climbs on top of the material and
starts to drag it in. The top roller pushes in the branches against the
bottom roller and the branches get squeezed tight so they fit through the
chute. The turning speed can be adjusted from a knob on the hydraulic
valve.
The operator can select to start or stop the feed from
the control bar on top of the feed chute. The control also has a reverse
position to push back the material inside the feed chute. The hydraulic
feed chute is close to the ground so quite heavy trees can be manually fed
into the chipper. The low feeding angle also enables the chipper to be fed
with knuckle boom loaders.
Roundwood, Slabs and Brush.
The Valby CH260 can chip 10 1/4" diameter roundwood.
The wide mouth opening also enables wide slabs to be chipped. The
chippers mouth opening is at it's widest at 24". Brush and other bushy
material is chipped best when the chipper is equipped with a hydraulic
power feed.
 | For ease of travel, the extension of the
hydraulic feed can be swung to the side. The chipper is then not
protruding outside the width of the tractor. The chipper pictured
above has the discharge tube with 12 ½ foot discharge height. |
Drop Spouts
Two different types of drop spouts are available
for the Valby chippers. The angle of the spouts are steep so the material
is gravity fed into the chipper.
Drop spouts can be used when the material is
transported to the chipper by a conveyor or if the size of the material to
be chipped is small. These kinds of applications are common in pallet
mills and furniture factories.
The Valby CH260
with DF 232 drop spout.
Safety Features
The Valby Chippers do not have knife motion
toward the operator - this reduces the risk of loose material flying back
through the feed chute.
The discharge height is 9 1/2 feet (optionally 12
feet) above ground so the discharge is above eye level. To accomplish
safe operation in various wind direction, the Valby chipper's discharge
direction is adjustable 360 degrees.
The safety bar on top of the F 260 feed chute releases
a flap which covers the feed opening. In the hydraulic feed model, one can
not only stop the infeed, but it can also be reversed. The Valby chippers
also have several noise-reduction features. The
discharge opening is above ear level. It is adjustable and can be
directed away from the operator. The noise coming up through the feed
chute is greatly reduced by the flap which covers the feed chute. The
hydraulic feed rollers also return to a position which covers up the feed
chute.
Shredding Paper
Both ends of the knife are covered, so twigs or
other material do not get hung up on the knives. This enables the
chipper to also be used for shredding paper. |
