Maximum performance for the toughest sites

Since big is beautiful and often also practical, we decided to develop a harvester to also meet the needs of heavy logging. The ProSilva S6 is a true power-harvester which handles everything from thinning to regeneration.

The master of challenging terrain

The S6-harvester is unique due to its large 34” wheels that can be upgraded up to 42” on the rear axles to reduce ground pressure and improve operational stability in challenging terrain.

With wheel specific controlled hub drive and a 6-cylinder engine with twin pumps for sufficient oil flow, this is the ultimate rough terrain harvester. If you choose the S6+ model a 326 horsepower engine is at your service on demand.

The ProSilva S6 can be equipped with a super-strong 18-series HD-crane than can also carry the largest harvester heads of any wheel based harvester. The up-to-date comfortable operator cabin with rotation and longitudinal levelling, combined with pendulum arm balancing will make your day. An intelligent IQAN control system improves harvesting efficiency and fuel economy. Operator selectable adjustments makes the S6 a personalized tool for every logger.

S6 brochure   Video

“I made the right choice”

”I feel, after 4500 hours of operation with ProSilva S6, that the choice was right. All the features I required were implemented and the expectations were well fulfilled. I have followed up with delight the ProSilva’s development after Tampereen Konepajat Oy came as the main owner of the company. Now there is a positive, active attitude. It is important for a contractor, that the supplier does well also, it ensures the continuity.”

Ari Hänninen
Metsätyö Hänninen Oy

Keep it simple and robust

ProSilva’s “keep it simple and robust” design philosophy makes our forest machines the most cost-efficient tools on the market. Our winning characteristics are the wheel specific hydraulic hub drive, ingenious placement of components, ultra-small turning circle and the lowest centre of gravity on the market.


Dimensions
Tyres, front 750/55-26.5 or 710/55-34
Tyres, rear 710/70-34 or 710/70-42
Length 7 882 mm
Width (pendulum arms) 2 990 mm (3 119 mm)
Steering max. angle +/-47°
Outer turning radius 6 700 mm
Transport height (pendulum arms) 3 650 mm (3 460 mm)
Ground clearance 700 mm
Weight from 20 200 kg
Engine
Engine Cummins B6.7
Non-road emissions standard EU Stage V / EPA Final Tier 4
Cylinder count 6
Displacement 6,7 l
Power 240 kW
Torque 1 375 Nm @ 1 500 rpm
Fuel tank 240 l
DEF tank 38 l
Transmission
Transmission Hydrostatic
Tractive force 260 kN
Travel speed, Gear 1 0–2,5 km/h
Travel speed, Gear 2 0–9 km/h
Hydraulics
Hydraulics Electric controlled, load sensing, dual pump system
Pump 280+210 cm³
Working pressure 28 MPa
Oil flow 448+336 l/min @ 1 600 rpm
Hydraulic oil tank 216 l
Crane options
Kesla 18H-series, max. reach 9 / 10 / 11 m
Logmer 18-series, max. reach 9 / 10 / 11 m
Harvester head options
AFM, Kesla, Keto, Log Max, SP, Waratah
Base machine Parker IQAN
Harvester head Dasa, Technion, TimberRite