Kesla is launching a new generation of Z-cranes as the 22 series. The new Z cranes are available in the 12, 14 and 17 meter classes. Their design is based on strength, speed, stability, range and easy maintenance.
New control valve for the electrically controlled cranes
The design of the new cranes was aimed at increasing speed and ease of use. To achieve this, for example, Kesla decided to use an electrovalve with a higher throughput volume than the one previously used. The lines to the transfer and extension cylinders have been enlarged, which enables higher travel speeds of the crane and improved maneuverability.
– “We have developed the most efficient and long-lasting Z-crane on the market,” says Ari Pirhonen, Business Director.
The valve is controlled by Kesla’s electric proC control system, which is available in a variety of control options, from mini-joysticks to a 4-lever and 2-pedal option. New valves are also available for mechanical control.
Up to 30 cm more range
The transfer boom of the new Z-cranes has been almost completely redesigned. The need for changes had, among other things, practical reasons: Larger lines need more space. The new structure includes, for example, a modified design of the extension cylinders, differently sized housings and larger pins. Despite an increase in the usable range by up to 30 cm, the changes were implemented with hardly any weight gain.
As always, Kesla uses high-quality, high-strength steel as bracket material. The crane booms have received the KESLA proTECT nanoceramic surface treatment.
Designed for ease of service ease
Kesla has long designed its cranes to be easy to service. This includes things like the location of the pressure filters in the new cranes. Like the previous 21 series, the Z-cranes of the KESLA 22 series also have inner hoses in both the first and the outer jib. The protection continues up to the gripper. “In addition to the protection, our customers also appreciate the easy hose change,” says Pirhonen.
The new cranes have separate support legs, and a particularly stable 4.5 m wide support leg is optionally available. This option is well received in the market. Most cranes over the 12-tonne meter class are equipped with wide support legs. The stabilizer legs are equipped with several optional cylinder stroke lengths and rotation angles.
You don’t have to make any compromises when it comes to working comfort: The timber cranes of the KESLA 22Z series can be equipped with a simple Vision standard cabin, a well-equipped Vision cabin or a spacious Vision XL cabin. The crane can also be equipped with top seating equipment and electrical controls. Getting on and off the operating position is easy and, above all, safe thanks to the new steps.
