ROTTNE H21D

EGS706

EGS 706 is a robust harvester head designated to Rottne H21, with a cutting diameter of 75 cm and a 2-speed, hydraulic controlled, tree feeding (3,5 m/s or 5,2 m/sek). A stable harvester head with significant power resources which is required when handle heavy final felling. The head has five feed rollers, two in the supporting wheel arms and three in the frame. This give the same advantages as in EGS 596, we can run with lower knife pressure which reduce friction and a better utilization of the feeding force. The upper and lower limbing knives and wheel arms can either jointly or individually be operated. Diameter measurement is performed via sensors in the upper knives and length measurement by a separate free-running measuring wheel.

Feed rollersROTTNE, short spike 12,5 mm (0,5 in) och long sprike 20 mm (0,8 mm)
Feed rate3.5 m/s (11.5 ft/sec) for gear 1 / 5.2 m/s (17 tf/sec) for gear 2
Power supply37.1 kN (8340 lbf) for gear 1 / 24.8 kN (5 575 lbf) for gear 2
Wheel opening796 mm (31 in)
The pruning diameter50 - 570 mm (2 - 23 in)
Chains900 mm (35 in)
Cutting diameter680 - 810 mm (27 - 32 in)
Chain speed40 - 45 m/sek (130 - 148 ft/sec)
Tilt angle145°
Width wheels closed1 554 mm (61 in)
Width wheels opened1 780 mm (70 in)
Height1 642 mm (65 in)
Weight1 580 kg (3 480 lbs)
Maximum tree size dbh *60 cm (24 in)
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  • Harvester head

SP761 LF

Feed rollersFinnskogsvalsar / Moipu
Feed rate4 alt. 5 m/s (13 alt. 16.5 ft/sec) size of wheel motor
Power supply30.9 alt 44.7 kN (6 950 alt 10 050 lbf) size of wheel motor
Wheel opening700 mm (28 in)
The pruning diameter40 - 550 mm (1.6 - 22 in)
Chains900 mm (35 in)
Cutting diameter750 mm (30 in)
Chain speed40 m/sek (130 ft/sec)
Tilt angle135°
Width wheels closed1 400 mm (56 in)
Width wheels opened1 920 mm (76.8 in)
Height1 850 mm (74 in)
Weight1 600 kg (3 527 lbs)
Maximum tree size dbh *55 cm (22 in)
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LogMax 7000C

The Log Max 7000C harvesting head is built on a tough frame and combines high drive power and high speed. This head performs very well in heavy and branchy trunks. Variable displacement feed roller motors provide fast speed in smaller wood and automatically regulate to provide more power in tougher limbed trees. Well placed guards and heavy-duty covers protect internal components and hoses from damage. High performance saw hydraulics provide full flow to the bottom saw for fast cutting in all timber sizes.

Feed rollersV-steel
Feed rate5,3 m/s (17,4 ft/sec)
Power supply41,7 kN (9374 lbf)
Wheel opening713 mm (28,5 in)
Opening, upper knives772 mm (30 in)
The pruning diameter40-560 mm (1,6-22,4 in)
Chains750/800/900 mm (30/32,5/35 in)
Cutting diameter650/690/750 mm (26/27,5/30 in)
Chain speed45 m/s (148 ft/sec)
Tilt angle128°
Width wheels closed1315 mm (53 in)
Width wheels opened1937 mm (77,5 in)
Height1742 mm (69,5 in)
Weight1627 kg (3587 lbs)
Maximum tree size dbh *65/72/75 cm
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LOGMAX 6000B

Log Max 6000B is a light-weight head suitable for final felling. This head combines low weight with high power and is especially designed for large wheeled carriers. The Log Max 6000B is built on well proven hydraulics with a maximum hydraulic pressure of 260 bar (3,771 psi) and max flow of 280 l/min (74 gpm). The feed rollers always work perpendicular to the tree which has for benefit to minimize friction losses and roller penetration. This geometry also ensures accurate length and measuring for high quality timber. Well placed guards and heavy-duty covers protect internal components and hoses from damage. High performance saw hydraulics provide full flow to the bottom saw for fast cutting. Log Max 6000B can be equipped with a Hultdins Supercut saw.

Feed rollersV-steel
Feed rate4,2 m/s (13,8 ft/sec)
Power supply26,6 kN (5980 lbf)
Wheel opening625 mm (24,5 in)
Opening, upper knives690 mm (27 in)
The pruning diameter35-500 mm (1,5-20 in)
Chains750/820 mm (30/32 in)
Cutting diameter650/720 mm (26/28 in)
Chain speed45 m/s (148 ft/sec)
Tilt angle128°
Width wheels closed1236 mm (48 in)
Width wheels opened1689 (66 in)
Height1682 mm (66 in)
Weight1306 kg (2880 lbs)
Maximum tree size dbh *65 cm (72 cm opt.)
  • Harvester head