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KIRTIMO GALVUTĖS KESLA

Kesla's extensive experience in forest technology has given it superior expertise as a developer of harvesters. Kesla's harvester family offers the market's most comprehensive line of both roller and stroke harvester heads. The product family also includes excavator harvester packages as well as special harvesters for eucalyptus handling.

When developing the harvester head range, special attention has been paid on requirements of biomass harvesting. With optional accessories the Kesla harvester heads can be equipped for effective biomass logging in addition to conventional timber harvesting, without compromises.
Kesla is a pioneer in the outfitting of excavators for harvester use. Kesla has an in-depth knowledge of almost all the excavator brands and their special requirements. When it comes to stroke harvesters, is Kesla is also the world's market and technology leader. An extensive selection of cranes designed specifically for harvesting use supplements the range of harvester products. As a testimony to Kesla's quality, several harvester manufacturers around the world have chosen KESLA as their original equipment. The design and manufacturing of Kesla's forest machines complies with all applicable international quality criteria. All products pass through a rigorous quality assurance program as well as practical performance and safety tests; the principles of sustainable development guide every aspect of Kesla's operations.

RH roller heads

SUPERIOR DURABILITY AND PERFORMANCE

Kesla harvesters have been designed to withstand extreme conditions. The market's best materials and components, combined with high quality and superior design, ensure the harvesters' reliability and ease of servicing. The standard equipment of Kesla harvesters have been carefully thought out. For example the proportional feed control that is already standard in all RH and RHS models makes the delimbing efficient and fluent, and feeding stops precisely to the desired cutting length. The ProCon and HydCon features, as well as a broad range of other additional accessories, can be added to further enhance the harvesters' efficiency and suitability to the customer's needs and working conditions. The range of accessories also includes a comprehensive range of rotators as well as feed rollers designed for different conditions.

16RH
Kesla 16RH is the market's lightest professional harvester head equipped with four delimbing knives and multi-stem functions. It's specially designed for integrated harvesting of timber and biomass. Professional multi-stem functions and the unique ProAX-cutting systems are unequalled features in this size- and weight class. The 16RH and 16RHS are real powerhouses for thinning, suited to 6-10 tons wheeled harvesters and tractors.

TECHNICAL SPEC.   16RH 16RHS
Weight* kg 445 445
Max. cutting diameter mm 450 450
Max. opening of feed rollers mm 350 330
Delimbing diameter (tip-to-tip) mm 330 330
Feeding force kN 16
13
Hydraulic system      
-pressure bar 230-250 230-250
-flow required l/min 150-170 120-150
-power required kW 65-80 50-65
Crane recommended Kesla 671H 671H
* Without rotator, depending on equipment

16RH 16RHS

 

 

 

 










18RH

The Kesla 18RH and 18RHS are genuine powerhouses when it come to thinning. The feeding and sawing forces are exceptionally high compared to the head's weight. 18RH and 18RHS are at their best in thinning where the trees' average diameter is less than 25 cm. The head's maximum opening is 40 cm. The head's compact construction also enables it to process crooked stems effectively. Additional accessories include the HydCon measuring roller, color marking device, automatic chain tightener and stump treatment device. The Kesla 18RH and 18RHS are best suited to 7-10 ton wheeled harvesters.

TECHNICAL SPEC.   18RH 18RHS
Weight* kg 450 450
Max. cutting diameter mm 450 450
Max. opening of feed rollers mm 400 400
Delimbing diameter (tip-to-tip) mm 330 330
Feeding force kN 19
15.1
Hydraulic system      
-pressure bar 210-240 210-240
-flow required l/min 170-200 125-150
-power required kW 60-80 48-60
Crane recommended Kesla 671H 671H
* Without rotator, depending on equipment

 18RH 18RHS

20RH
The Kesla 20RH and 20RHS are fast and agile heads for thinning and fi nal fellings where the trees' average diameter is less than 30 cm. The head's maximum opening is 45 cm. Considering their size class, these lightweight yet sturdily constructed harvesters provide exceptionally powerful feeding and sawing forces. Thanks to the 4 delimbing knives, the picking properties and delimbing quality are excellent. Additional accessories include the ProCon and HydCon features as well as color marking device, automatic chain tightener and stump treatment device. The Kesla 20RH and 20RHS heads can be equipped also for productive biomass harvesting with the unique Kesla ProAX-cutting system and multi-stem functions. The Kesla 20RH and 20RHS suit 8-13 ton wheeled harvesters and excavators.

TECHNICAL SPEC.   20RH 20RHS
Weight* kg 570 570
Max. cutting diameter mm 450(520) 450(520)
Max. opening of feed rollers mm 450 450
Delimbing diameter (tip-to-tip) mm 330 330
Feeding force kN 19
15.1
Hydraulic system      
-pressure bar 210-240 210-240
-flow required l/min 170-200 135-160
-power required kW 60-80 50-65
Crane recommended Kesla 13H-16H 13H-16H
* Without rotator, depending on equipment

  20RH


25RH mkII

The Kesla 25RH and 25RHS are truly versatile harvester heads for thinning and fi nal felling where the trees' average diameters are less than 40 cm. The head's maximum opening is 58 cm. The excellent balance, combined with the geometry of the rollers and knives, facilitates and speeds up the picking of trees either standing or laying on the ground, either vertically or from bundles lying on the ground. The head is also well suited to the processing on landing. Additional accessories include the ProCon, HydCon and EucaPRO features as well as color marking device, automatic chain tightener as well as stump treatment device. The 25RH and 25RHS can be equipped also for productive biomass harvesting with the unique Kesla ProAX-cutting system and multi-stem functions. Kesla 25RH and 25RHS are best suited to 12-20 ton base machines. The 25RHS has been designed especially for use with excavators.

TECHNICAL SPEC.   20RH mkII
20RHS
Weight* kg 840 840
Max. cutting diameter mm 670 670
Max. opening of feed rollers mm 580 580
Delimbing diameter (tip-to-tip) mm 390 390
Feeding force kN 23
19
Hydraulic system      
-pressure bar 210-240 210-240
-flow required l/min 200-250 170-210
-power required kW 75-100 60-85
Crane recommended Kesla 13H-16H 13H-16H
* Without rotator, depending on equipment   

 25RH 25RHS

28RH-30RH
Kesla 28RH is based on experiences of 30RH, well-known as strong and reliable head for most demanding conditions. The 28RH and 30RH heads are sturdily constructed for heavy-duty final felling where trees' average diameter can be as large as 50 cm. These heads suit perfectly also to processing on landing as well as debarking of eucalyptus. The mechanically synchronized 4-motor drive of the 30RH and 30RHS provides plenty of power for processing of even the most robustly branched trees. The 2-motor driven 28RH and 28RHS are equipped with totally new hydraulic anti-slip system, providing feeding power and speed at incredible operating efficiency and fuel economy. The heads can be equipped with ProCON-hydraulics, HydCON-measuring wheel and EucaPRO-package as well as color marking, stump treatment and automatic chain tightener among others. The 30RH and 30RHS are made for 18 - 25 tons excavators, while the lighter 28RH and 28RHS fit to heavy wheeled harvesters and 17 - 22 tons excavators.

TECHNICAL SPEC.   20RH mkII
20RHS
Weight* kg 840 840
Max. cutting diameter mm 670 670
Max. opening of feed rollers mm 580 580
Delimbing diameter (tip-to-tip) mm 390 390
Feeding force kN 23
19
Hydraulic system      
-pressure bar 210-240 210-240
-flow required l/min 200-250 170-210
-power required kW 75-100 60-85
Crane recommended Kesla 13H-16H 13H-16H
* Without rotator, depending on equipment

  28RH

 


SH stroke heads

As the leader of stroke harvester market, Kesla has brought the technology of stroke heads to totally new level. The Kesla SH- stroke heads include lots of features and components previously known from the roller heads. For example the controland measuring system are similar. The stroke technology results in substantial delimbing force achieved with minimum hydraulic requirements. Kesla stroke harvesters particularly suit excavator bases. At their best they supply the raw delimbing power required for the harvesting of trees with robust branches; on the other hand are also able to process valuable special trees gently. Thanks to the huge delimbing power reversing feed is never needed, making actual delimbing speed unbeatable when processing robustly branched trees. The unique ProStroke partial stroke feed facilitates the delimbing of even crooked trees. Thanks to their excellent features for picking of trees and very wide movement angle of the tilt, the Kesla stroke harvesters excellently suit the cut-to-length harvesting of standing trees as well as the processing on landing as a part of tree length logging chain.

20SH

The Kesla 20SH stroke harvester is particularly well suited to the effective processing of robustly branched trees, either standing or in piles. Processing of valuable special trees without damaging timber surface is also easy with this harvester head. Thanks to the ProStroke partial stroke function, even the delimbing of crooked trees is efficient. The optimum diameter of trees is 25 cm. The Kesla 20SH suits 7-13 ton base machines.

TECHNICAL SPEC.   20SH
Weight* kg 520
Max. cutting diameter mm 450
Max. opening of feed rollers mm 480
Delimbing diameter (tip-to-tip) mm 330
Feeding force kN 41
Hydraulic system    
-pressure bar 175-220
-flow required l/min 70-1200
-power required kW 20-44
Crane recommended Kesla
* Without rotator, depending on equipment

  sh

 hitachi pjov 1

  






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