Caterpillar Performance Handbook, January 2017, SEBD0351-47

Application Features Specifications

Harvesting Harvester Heads

Hydraulics: ● Heavy Duty double-hinged self-aligning covers allow for superior access and easier serviceability to the hydraulic valve. ● Mono-block valve decreases maintenance repairs and gives users easier control of all harvester head functions. Measuring Devices: ● New length and diameter measuring systems increase reliability and reduces maintenance. ● Wide temperature range ensures accurate measurements. Hoses: ● Cat XT™ ES (Enhanced Spiral) ToughGuard hoses are designed to have exceptional abrasion resistance and increased flexibility superior to standard hoses.

Application: ● This product is specifically designed for applications, which require removal of the bark. The HH44 DE cannot be used in a standard harvesting application. Features: Operator Station: ● Utilizes a mobile purpose built Microsoft Windows based computer system . ● Equipped with: color touch screen, heavy-duty pro- cessor housing, and mini space saving keyboard with integral track ball mouse. Structures: ● Use of a chassis design that has proven effective in Eucalyptus , improvements were made to the struc- ture to provide a durable frame for high cycle debark- ing applications.

5

MODEL

HH44 DE

Knives

2 fixed, 4 moveable

Maximum Roller Opening

620 mm 603 mm 703 mm

24.4" 23.7" 27.7"

Maximum Opening Upper Knives Maximum Opening Lower Knives

Feed Force Feed Speed

0-22.6 kN @ 25 MPa

0-5076 lb @ 3625 psi

0-5.7 m/sec

0-18.8 ft/sec

Weight

1542 kg

3400 lb

Main Saw:

Bar Pitch/Type

10 mm 750 mm 650 mm 40 m/sec

0.404"

Bar Length

29.5" 25.5"

Maximum Diameter Cut Maximum Chain Speed

130 ft/sec 3620 psi

Hydraulic Pressure Requirement Maximum Hydraulic Flow Requirement Minimum

25 MPa

184 L/min

48 gpm

Edition 47 5-27