• Datum: 2022-02-11 20:15:57
• Firma: W-Irex Przedsiębiorstwo prywatna Wiesław Ciura
• Ansprechpartner: Pan Kamil Jachacz
• E-Mail: kamil.jachacz@wirex.pl
• Anschrift: Piotrkowska 14, 98-358 Kiełczygłów
• Telefon: 609434938
• Land: Poland
• Awareness:
• E-mail

Innovative band saw for cutting wood, the possibility of reconstructing a bridge or building crossings from wood harvested directly from the forest or on construction sites. The saw uses the most advanced technological solutions. It is a professional device, the construction of which allows towing on public roads and fast and efficient movement over varied terrain. Sawing can take place not only in the industrial zone using power from the grid, but also in difficult conditions without access to electricity, because the sawmill has a 26 kW generator installed on the frame. The dimensions of the saw are adapted for air and rail transport, where the total length during transport is 9 m (after unfolding 13 m), height 2.5 m and width 2.5 m. The unit built in the frame – track drives the main engine and hydraulic components, which are distributed over the entire length of the sawmill and are responsible for loading wood, turning, leveling and clamping logs with dimensions: length from 2 to 7 m and diameter up to 80 cm. In addition, the saw is equipped with a hydraulic leveling system (4 cylinders to set the frame at an ideal level in relation to the terrain), and a patented system of folding track extensions. Hydraulics are controlled by two multifunctional joysticks installed in the control panel. The cutting process is performed by a cutting head installed on a movable support with a 5400 mm long band saw driven by a 20 kilowatt electric motor. An innovative solution implemented in the saw are two debarkers installed on the cutting head which clean the logs of dirt and two circular edgers which enable to obtain ready edged boards during one passage of the cutting head. The system of spreading debarkers and edgers is based on an Element Dryline E SLW and Mitsubishi Electric servo drives. The machine is operated from a single 7-inch touch panel, and Bosch Rexroth multifunction joysticks are responsible for controlling hydraulic and electrical functions. WIREX round machine model CZ-1/ZT was designed and manufactured by our Company for international armed forces. The first production batch is for 30 kpl. Delivery of the first units of machines under the name of „Kosodrzewina“ project is aimed at protection and reconstruction of bridge objects during the threat of cataclysms, destructions due to external attack on this type of crossings. Our equipment provides specialized military units with full The design of the 6500 kg tractor is based on tandem axles and large 19 inch wheels, borrowed from trucks.

Lumber, construction, defense industry

The CZ-1/ZT chainsaw is designed to work in extremely difficult conditions, it allows you to saw wood with millimeter accuracy, high efficiency and in any weather conditions and any location. Such possibilities are provided by an innovative patented design, as well as the implementation of the highest quality components from renowned manufacturers such as Igus, Bosch Rexroth, Mitsubishi Electric, AL-KO Kober and many others.

The prototype of the machine produced by our company was subjected to extreme tests organized by the Military Institute of Engineering Technology, which aimed to check the wood cutting on the machine in extreme conditions. The first test was freezing. The machine spent several dozen hours in a climate chamber at a temperature of -40° C and at this temperature we had to start it up and start cutting through frozen wood. Another test was cutting at a high temperature of + 70° C. The machine also had to pass work in a tropical climate, which is characterized by a high temperature of 60° C and humidity of over 95%. The terwn tests involved a number of passes over obstacles such as 70 cm high water and passing over 30 cm high walls. The prototype machine traveled 5,000 km, towed behind a military vehicle, of which 3,000 km on asphalt roads, 1,500 km on paved, non-asphalt roads, and 500 km on a dirt track. After the range tests the machine was subjected to performance tests in which during sawing of a 7 m log it had to reach linear speed of 30 m/min. The tests were extremely difficult, but all of them were successful, so we received a „pass“ to make the first deliveries.

Long service life

Mobile band saw CZ-1/ZT in military version was equipped with 5 sets of igus guides series R4.32 and R15, which supply chainflex cables: power, servo, encoder, control, sensor and pneumatic to all moving axes responsible for cutting raw logs. To ensure the highest quality and 100% fail-safe operation in the field, the entire system was delivered as a ready-made Readychain power system with pre-fabricated connectors according to Mitsubishi standards. This also helped to improve production efficiency and meet the armys demand for a large number of machines delivered in a very short time.

• e-chain R4.32/R15
• chainflex® CF.9/CF.10
• readycable®/readychain®

In the CZ-1/ZT saw dedicated to the armed forces we used 4 guides: The first main one connecting the movable slide with the frame of the saw on the longitudinal axis of the cut with a length of 13000 mm, which is supported by the guide of the R4.32 series working sliding in Igus aluminum gutters. To increase the mobility of the whole set for transport the machine is folded to the length of 8930 mm. A custom solution was used to fold the gutter just behind the loop of the collapsed guide. A second guide connected the electric cabinet mounted on the slide with the cutting head moving in the vertical axis of the slide. An additional two slides work in conjunction with Element DRYLINe SLW IGUS slides and connect the debarking and edging system to the electrical cabinet. All of the slides are of a covered design to hide the wires in orange, green or grey and to protect the wires from debris from sawing wood. In a military vehicle, there is no way for anything visible on the unit to be any color other than dark green or black.

Consideration was given to a system of suspended crane cables, suspended from cable carts and a channel guide.

The chosen Igus slide system, due to its high quality and precision, will ensure trouble-free operation throughout its lifetime without generating additional waste. Furthermore, the slide systems are covered by the Green Chain Recycling program, which further protects the environment from the unwanted effects of plastics.

This is how we were served directly. W-IREX has been cooperating and developing its products with Igus for several years in the field of control cables and their guidance systems in stationary machines dedicated to domestic and international lumber industry.

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