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High performance with open loop track drive system.

857 Feller Buncher

857 Feller Buncher

High performance with open loop track drive system. SPECS DEALER BENEFITS Track Feller Bunchers SPECS BENEFITS DEALER

Highlights

engine icon

engine icon





POWER

CUT RADIUS

TAIL SWING RADIUS

212 kW
284 hp

8,79 m
28 ft 10 in

3,08 m
10 ft 1 in

POWER

CUT RADIUS

TAIL SWING RADIUS

212 kW
284 hp

8,79 m
28 ft 10 in

3,08 m
10 ft 1 in

Increased Boom Envelope

Open Access

Undercarriage Options

Increased Boom Envelope

Open Access

Undercarriage Options

Overview

The 857 is an efficient feller buncher equipped with ER technology and an open loop track drive system. The machine is well matched to high volume felling applications.

Increased Boom Envelope

The ER boom system provides tighter tuck, increased envelope and more below grade capability. Through-tip routing offers better protection of the hoses leading to the felling head. Three-mode ER provides the operator with a wide range of boom control options.

Open Access

The side opening engine roof completely exposes the top and both sides of the engine, and most hydraulic components. When open, the enclosure roof serves as a spacious side service platform to work comfortably and safely.

Undercarriage Options

Several F8 and FH400 series undercarriage options to customize the machine to a range of types, timber size and other application conditions.

Unique sloping tail for additional swing clearance without compromising on component access.

Product Specifications

Metric
Imperial
LENGTH less boom 5 590 mm
WIDTH with steps 3 390 mm
HEIGHT 3 390 mm
GROUND CLEARANCE 710 mm
WEIGHT less attachment 31 600 kg
TAIL SWING RADIUS 3 150 mm
ENGINE Tier 4f Tigercat FPT N67 Tier 4f
212 kW (284 hp) @ 2,200 rpm (rated)
AIR FILTRATION Precleaner and 2-stage engine air cleaner
COOLING Aluminum side-by-side radiator, oil cooler, charge air cooler, A/C condenser
Removable intake debris screen
FAN Hydraulically driven, automatic variable speed, reversible
FUEL CAPACITY 850 L
DEF CAPACITY 80 L
LOW RANGE 1,8 km/h
HIGH RANGE 4 km/h
PUMP, MAIN Piston
PUMP, SAW Piston
PUMP, FAN Gear
PUMP, CLAMP/ACCUM. Piston
PUMP, CHARGE/PILOT Gear
FILTRATION, MAIN HYDRAULICS (2) In-tank, 10 micron full flow
CYLINDER, HOIST (2) 120 mm (4.7 in) bore
CYLINDERS, STICK/ER (2) 110 mm (4.3 in) bore
CYLINDER, TILT 130 mm (5.1 in) bore
HORSEPOWER CONTROL Electronic speed sensing
All-speed antistall
RESERVOIR 295 L
TRACK FRAMES R6-152-5 heavy-duty forestry, integral track guides, ramp angles
TRACK CHAIN F8 203 mm (8 in) pitch sealed and greased
FINAL DRIVE (2) Axial piston motors, infinitely variable speed
TRACTIVE EFFORT 308 kN
GEARBOX Triple reduction planetary type with brake
FRONT IDLER Hydraulic track adjuster
Spring shock absorber
ROLLERS, UPPER (2) D6D excavator type
ROLLERS, LOWER (9) D6 single/double flange tractor type
SLIDES, UPPER Optional, bolt-on
TRACK SHOE 610 mm (24 in) single grouser
Optional 610 mm (24 in) double grouser
710 mm (28 in) single grouser
710 mm (28 in) double grouser
710 mm (28 in) single grouser tri-track
760 mm (30 in) double grouser tri-track
910 mm (36 in) triple grouser tri-track

+ ALL

ER Technology

ER technology allows the operator to actuate the boom with optimal hydraulic efficiency. Extend and retract on a horizontal plane quickly and smoothly with a single joystick.


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RemoteLog Telematics

Off site access to telematics. Be connected to your forestry operation from almost anywhere – all you need is RemoteLog, and a device with internet connectivity.


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Image of a laptop with the RemoteLog home screen displayed

Onsite Access with LogOn

Onsite access to production and service information. Using a mobile device and a secure WiFi hotspot, users can easily access detailed machine data and diagnostic tools at the worksite with LogOn.


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Key Benefits

Full shift comfort. Highly adjustable parallel action air ride seat with integrated heating and cooling
ER boom technology® improves fuel efficiency, reduces operator fatigue and increases productivity
Comfortable cab interior with clear sightlines. Ergonomic positioning of controls and display screens
Retracting roof enclosure completely exposes the engine and major components while serving as a safe and convenient work platform
Unique sloping tail for added swing clearance
Fuel efficient Tigercat FPT N67 Tier 4f engine; fully supported by Tigercat Industries and the Tigercat-TCi dealer network
Full shift comfort. Highly adjustable parallel action air ride seat with integrated heating and cooling
Comfortable cab interior with clear sightlines. Ergonomic positioning of controls and display screens
Unique sloping tail for added swing clearance
ER boom technology® improves fuel efficiency, reduces operator fatigue and increases productivity
Retracting roof enclosure completely exposes the engine and major components while serving as a safe and convenient work platform
Fuel efficient Tigercat FPT N67 Tier 4f engine; fully supported by Tigercat Industries and the Tigercat-TCi dealer network

Track Tensioning

Why it’s important and how to do it safely.


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Close up of a Tigercat undercarriage

Resources

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Tigercat Seat Adjustments


With the exception of forwarders and harvesters, all current 2025 Tigercat models are equipped with a common operator’s seat. In this video, to help you get the best performance from the seat, we are going to take you through the adjustments and point out some differences specific to certain machine models.


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