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HTH622C 4X4

Harvester Head

Net Weight icon
2760 kg / 6,085 lb.
Net Weight
Max Hydraulic Pressure icon
35 MPa / 5,076 psi
Max Hydraulic Pressure
Max Delimb Opening icon
650 mm / 26 in.
Max Delimb Opening
Max Feed Roller Opening icon
780 mm / 31 in.
Max Feed Roller Opening
Max Sawing Capacity icon
750 mm / 30 in.
Max Sawing Capacity
Carrier Size icon
25-35 metric ton
Carrier Size

Available in North America/Canada only; coming to other global markets soon.

Where to buy

Innovative and engineered for the toughest applications, the HTH622C 4x4 provides peak performance, productivity, and uptime helping keep you in the green.

Engineered for the toughest conditions, the new four-roller Waratah HTH622C 4x4 multistem processing head delivers the performance and proven innovation you expect from the industry leader:

  • Four-roller design, for single harvesting/processing or multi-stem processing applications.
  • Automatic dual stem and end alignment, for fast processing and minimal waste.
  • New dual diameter- and length-measuring innovation, for extreme accuracy.
  • New high-flow hydraulic valve, for faster feeding and improved saw performance.
  • On-demand synchronized four-wheel drive with responsive proportional control, for positive traction.
  • Standard auto-tension (3/4 in.)-pitch main saw with 65-cm (26 in.) cutting capacity, for extra efficiency, longer chain life, and fewer service intervals.
  • New 360-deg. continuous rotation, for improved log handling, reduced carrier-to-head hose failures, and lower operating costs.
  • Smart new maintenance features, for shorter servicing time, improved access, and maximum operator productivity.

Technical Data

Maximum feed-roller opening
78 cm
31 in
Width (maximum)
170 cm
67 in
Excluding links and some options
2760 kg
6,085 lb
Butt Saw:
Saw type
Waratah 3/4
Maximum cutting diameter
750 mm
30 in
Bar and chain type
900 mm
35 in
Saw limiting
Oil tank capacity
22 L
4.8 gal
Top Saw:
Saw type
Maximum cutting diameter
40 cm
16 in
Bar and chain type
59 cm
23 in
Bar oil from tank
Feed System:
4 feed rollers with on-demand hydraulic synchro-drive
Various feed-wheel options available
Feed motors (drive arm motor/fixed drive motor)
702 cc/400 cc
Feed speed — maximum flow
6.5 m/s @ 360 l/min
21.3 ft./sec. @ 95 gpm
Top knives
1 fixed, 2 moving
Maximum delimb opening
650 mm
26 in
Control and Measuring System Options:
TimberRite H-16, TR100

Optional Configurations

Color-Marking System

Carrier Requirements

Carrier Size Range:
25-35 tonne
Hydraulic Requirements:
Maximum pressure
35 MPa
5,076 psi
Useable pressure
32 MPa
4,641 psi
Maximum flow
320–360 l/min
85–95 US gal./min
Optimum flow @ pressure
360 l/min. @ 15 MPa
95 gpm @ 2,175 psi


    Not all models available in all countries. Service and support may also vary by region. Please contact a dealer for more information.