Product Information Bulletin
HG 6600B
www.Rileymanufacturing.com
HG 6600B Hydra-Gate
The patented HG 6600B offers loggers the ultimate in flexibility for any logging job. Whether
working in hardwood one week or juvenile pine the next, the HG 6600B does both jobs extremely
well - giving the owner the versatility to bid different type jobs competitively with one delimbing
system – maximizing his investment.
The HG 6600B Hydra-Gate uses the proven Riley delimber. This delimber was designed to
delimb single stems of hardwood / pine up to 20” or multiple stems of juvenile pine - limited only
by the loaders capacity. With the largest throat opening (66”) in the industry, the HG 6600B’s
delimber makes an easy target for loader operators trying to place multiple stems.
The Hydra-Gate design is very straightforward. The delimber is mounted on top of a 7’ wide
delimbing grid. This grid has 5 - 17” squares with removable ½” high tensile breaker chains and
a 3” adjustable horizontal breaker bar.
Using a Hydra-Gate, the operator simply pulls the stems through the delimber and allows the
stems to fall into the Hydra-Gate trough. As the stems fall into the trough, they naturally fan
outward. The loader operator pushes the stems back through the gate - completely delimbing
them - and places them on the truck.
Hydra-Gate users everywhere are picking up two additional loads per day with the Hydra-Gate in
a thinning application.
Productivity is further enhanced with the 6600B delimber’s forward and reverse knives (a Riley
exclusive) that allows the operator to delimb trees in both directions – reducing cycle times while
reducing stresses on the loader!
Product Information Bulletin
www.Rileymanufacturing.com
Sales Features include:
• High-strength alloy forward and reverse cutting blades
• 58" reversible bar
• Automatic chain lubricator with 4-gallon capacity
• Direct-drive saw motor
• Large feed roller for faster pull-through
• No exposed hydraulic hoses, all lines completely enclosed
• Easy access to all service area, with an internally mounted accumulator
Specifications for 6600B Delimber
Throat Opening: 66”
Max Log Diameter: 32”
Min Throat Opening: 3”
----------------------------------------------------------------------------------------------------------Knives: Three 8”forward and two 8” reverse Knives (Riley exclusive) Made from high strength
alloy steel; quenched and tempered
Knife Holder: Low profile 1.5” high-tensile knife arms with 3.5” knife arm boss and 2” pins.
Knife Cylinders: (2) 2 ½” bore, 8” stroke
Nose Roller and Knife Arm Mounts: Sleeve-mounted bearings
----------------------------------------------------------------------------------------------------------Saw Bar: 58”
Bar Chain: 11 ¾” pitch, 96 links
Bar Cylinder: 2” bore, 10” stroke
Chain Oiler: Automatic drip with 4-gallon reservoir
Saw Drive: Direct
Drive Sprocket: 4” – 9 Tooth
Rotating Bearing: 20.5” diameter
Cradle Mount: 2” King Pins
----------------------------------------------------------------------------------------------------------Delimber Frame Dimensions: 107” long, 82” wide, 85” high,
Delimber Weight: 6,750 lbs
Feed Roller: 12” diameter
Required Flow from Loader: 40 GPM @ 2250 PSI
Trough Specifications as follows:
Width – 8’
Height - 3’8”
Length –14’
Delimbing Grid: (5) 17” x 17” Squares with removable
½“ High-Tensile Breaker Chains.
Floating Horizontal Breaker Bar – 3” Square / Adjustable.
Total Machine Dimension - Length – 26’1”
lbs.
Width - 8’
Tires – 22.5 Bias, Uni-mount wheel
Axle 22,500 lb. Capacity
Connector – Pintle
Height – 13’2”
Weight – 14,375
The information contained in this bulletin is for the employees of Riley Manufacturing and Riley Dealers only. Every effort has
been made to obtain the latest and most accurate information, however, these specs are subject to change without notice. Any
duplication of this bulletin is prohibited without this information.
For Dealer Sales Personnel
September 2002