Finnish company Kesla Oyj is well known for its forestry machinery, timber loading and city cranes, as well as tractor attachments including forestry trailers and loader cranes. Tractor equipment has become more and more versatile in recent years and now Kesla has introduced a multi-purpose concept with a tow-able fire-extinguishing unit for use in Germany. Sales in Germany will take place from the third quarter of 2023 via their Kesla sales partners.
The trailer with fire-fighting equipment can be used with large agricultural tractors
The fire-extinguishing trailer consists of a KESLA multi-purpose trailer, a KESLA loading crane and a modern water tank made of special plastic which has a capacity of 10.5 m³ along with space for other fire-extinguishing equipment. The fire-extinguishing trailer is equipped with its own hydraulic unit and can therefore be used with any larger agricultural tractors without any problems.
Its flexible use for both on and off-road
The fire-extinguishing trailer consists of a KESLA trailer with a multi-purpose structure and the attached fire-extinguishing unit can be driven to the fire site, since the KESLA 144 trailer can be used in a variety of ways as no special chassis is required. When the water tank is full, the transport speed is still fast, and this keeps the travel time between the filling point and the point of use as short as possible. The concept is based on a KESLA 144 series trailer with drive, either HD (Robson drive) or ND (nave drive). This is pulled by the tractor and the trailer mounted KESLA hydraulic unit is driven via the PTO shaft. As a result, the system is extremely efficient off-road, for example in forest or field fires, and has excellent traction.
The combination of good performance on and off-road gives the fire-fighting trailer flexibility and economy. It can also be used for other purposes like irrigation.
Two water cannons / hollow jets with a reach of up to 30 m
The KESLA fire-extinguishing system has two water cannons with jet nozzles – one at the rear of the fire-extinguishing superstructure which is hydraulically adjustable and a second on the boom of the loader crane. Both can be manually adjusted from either a water jet or the spray jet and have a maximum range of up to 30 m with the water jet. Both can be easily and precisely directed to the fire. The water cannon / hollow jet pipe on the loader crane boom can also be used to extinguish fires, which are then scattered with the grapple.
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The water tank of the fire-extinguishing equipment can be filled via hydrants or water pipes and also via natural water sources such as ponds, lakes, rivers or even larger ditches. It is filled with the hydraulically driven filling pump, which can be used with the loader crane thanks to its reach. This is a good solution when working away from water hydrants. The fire-extinguishing unit is controlled via a separate joystick and the control element is hydraulically driven via the trailer’s hydraulic unit.
Easy to convert back to a KESLA forest trailer
As already mentioned, the KESLA trailer fire-extinguishing unit uses a multi-purpose structure, and the semi-mounted fire extinguishing unit can be easily removed from the trailer. After unhitching the fire extinguishing unit and the KESLA multi-purpose body frame, the bolsters can be put back on the trailer and the trailer can load timber again.
Kesla is currently working on additional equipment for the KESLA multi-purpose body frame.
The concept was presented back in mid-September 2021 with the release of a video of the prototype of the KESLA Fire-extinguishing Unit with trailer KESLA 144 on YouTube. The video and the unit attracted a lot of attention and Kesla Oyj received many enquiries for the system globally. After extensive tests and operations, the fire-extinguishing tractor trailer has performed well and is ready for customers in Germany. Sales will start in Q3 2023 with deliveries expected in early 2024.
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