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Harvester heads

Harvester heads
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Harvester heads

Product catalog summary
Overview: The document provides an in-depth look at Kesla's harvester heads, emphasizing their advanced features, specifications, and applications in forestry technology. These harvester heads are engineered for precision, efficiency, and durability across various forestry operations.
Key Features:
  • HydCON Length Measuring Wheel: Ensures precise timber measurement, enhancing tree picking efficiency.
  • Adjustable Feeding Speed: Offers accurate feed with computer-controlled pressure adjustments based on tree diameter.
  • Serviceability: Designed for easy maintenance with spacious structures for lubrication and hose changes.
  • Unique Feeding Roller Geometry: Provides low friction and excellent traction, maximizing performance and energy efficiency.
Comprehensive Solutions:
  • Suitable for cut-to-length thinning, final felling, and processing of special timber.
  • Effective in harvesting hardwoods, robust-branched trees, and eucalyptus.
  • Supports biomass harvesting and can be equipped for use with excavators.
Durability and Performance: Kesla harvesters are constructed with high-quality materials, ensuring reliability and ease of servicing. Features include proportional feed control and a range of accessories to enhance efficiency.
Technical Specifications:
  • 16RH/RHS Models: Lightweight, equipped with four delimbing knives, suitable for 6-10 ton wheeled harvesters.
  • 18RH/RHS Models: High feeding and sawing forces, ideal for thinning trees under 25 cm diameter.
  • 20RH/RHS Models: Fast and agile, suitable for thinning and final fellings with trees under 30 cm diameter.
  • 25RH/RHS Models: Designed for larger trees with a maximum cutting diameter of 670 mm.
Optional Equipment: Includes features like color marking devices, stump treatment equipment, and the ProAX-cutting system for enhanced functionality.
Conclusion: Kesla's harvester heads are versatile and customizable, meeting diverse forestry needs with a focus on precision, efficiency, and sustainability.
Additional Technical Specifications: Detailed specifications include dimensions, hydraulic requirements, and power needs. The document specifies the maximum openings of front and rear knives, operating pressures, and flow requirements, with power requirements in kW and hp.
Roller Heads: The Kesla 28RH and 30RH heads are designed for heavy-duty final felling with tree diameters up to 50 cm, featuring a mechanically synchronized drive and a new hydraulic anti-slip system.
Xtender Boom: Enhances the working range of excavators, improving productivity and facilitating movement in difficult terrain.
Stroke Harvesters: Offers substantial delimbing force with minimal hydraulic requirements, suitable for robustly branched trees.
Company Overview: Kesla is a leading manufacturer of forest technology with over 50 years of experience, exporting products to over 30 countries.
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Catalog excerpts

Harvester heads-2

HARVESTER HEADS THE MULTITALENT IN HARVESTER TECHNOLOGY 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...

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Harvester heads-3

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...

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Harvester heads-4

ROLLER HEADS 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. Width, head open: 1 040 mm 41” 1 040 mm 41” Width, head closed: Length: 1 110 mm 44 1⁄2” 110 mm 44 1⁄2” 1 Height (without rotator): 1 100...

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Harvester heads-5

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...

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Harvester heads-6

ROLLER HEADS The Kesla 20RH and 20RHS are fast and agile heads for thinning and final 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...

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Harvester heads-7

The Kesla 25RH and 25RHS are truly versatile harvester heads for thinning and final 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...

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Harvester heads-8

ROLLER HEADS 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...

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Harvester heads-9

Xtimber Xtender KESLA HARVESTER EQUIPMENT FOR EXCAVATORS Besides its extensive harvester head range suiting almost all excavator models, Kesla also provides comperehensive installation services and extensive accessory packages. Options selected by customers may include, for example, an installation kit for hydraulics, measuring and control system, Xtender boom and a full range of safety equipment. Supplied with the measuring system is a kit that makes its installation quick and easy; sensitive components are protected, and the finished result is stylish and user-friendly. The most ingenious biomass...

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Harvester heads-10

STROKE HARVESTERS LEADING STROKE HARVESTER TECHNOLOGY 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;...

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Harvester heads-11

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. The Kesla 25SH stroke harvester is at its best when processing robustly branched trees – standing or in piles – requiring substantial delimbing force. The stroke...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.