WORKING PROCESS AND ADVANTAGES OF AN AUTOTIE BALER WITH PRE-PRESS

• The pre-press flap of the bailing press ensures a closed press chamber, so that a difficult compressible material does not need to be cut off during the pressing
• Thanks to the pre-press flap, much more material is compressed per cycle. The capacity of a baler is also much higher than the capacity of conventional balers with cutting system with a comparable engine performance.
• The baler is not equipped with a cutting knife, therefore the maintenance costs are much lower, because regular exchange of cutting blades is not required and there is less wear and tear on the
• The material is equally distributed in the press chamber, resulting in more compact and rectangular bales,  much easier to handle and can be stacked higher than bales from a cutting press.
• The filling opening is as wide and deep as the press
• The bale size can be pre-set depending on your specific needs. After the material has reached the desired filling level in the press chamber, the pre-press flap of the baler is closed automatically.
• When the pre-press flap is closed, the main ram presses the materials together. At the same time the baler is refilled above the closed pre-press flap. After the ram has reached the foremost pre-set position, it moves back again.
• The pre-press flap will open again and refills the press chamber of the baler with the material.
• Upon reaching the detected levels the pre-press flap of the baler closes again and there will be another stroke of the ram.
• This procedure is detected by photocells.
• The whole process is repeated again until the pre- set bale length (which is adjustable) has been reached.
• The press ram stops in its front position after the complete cycle mentioned above is finished. The wire needles move through the press ram, from the top downwards.
• The needles pick a wire from below and from above the baler. After the needles are again in their top position, the wires are cut and twisted into a pre-set twist numbers depending on the material.
• After that the press ram moves backward again and the whole process is repeated.
• The compact hydraulic unit is installed on the rear of the baler. All valves are mounted on a hydraulic block, so that the number of pipes and hoses are minimal thereby reducing the risk of leakage.
• The axial displacement piston pump, mounted outside of the tank, offers several advantages: low noise, short regulation time, service friendly, high speed, 100% torque transfer.
• The most important movements of the baler are controlled via cartridges in the distribution block. The use of these cartridges prevent the oil from heating too much and that there are no pressure surges in the system.
• The distribution block allows a simultaneous operation of the press ram and prepress flap. That means faster operation and 100% oil flow efficiency.
• The entire hydraulic system is configured in such a way that the efficiency is very high. This creates very little pressure loss, lower energy consumption and more important a higher capacity per hour.
• The oil temperature is controlled by means of a thermostat, which can automatically switch on the optional oil cooler.
• At a too high oil temperature, the baler will turn off automatically. The oil level is also controlled so the baler is turned off in case of low oil level.
• The cylinders are fastened by means of a ball joint, so that axial forces are avoided and thus the wear and tear of seals is reduced or even prevented.The baler is supplied with a control cabinet which is equipped with a PLC Siemens S7 1200 series. This PLC ensures that the entire machine works automatically. The main motor is equipped with a star- delta circuit, which in turn is equipped with a thermal protection and automatic backup. The other motors are protected against overload and short circuit.
• It is possible to use all the functions for maintenance purposes by hand.
• The operation is performed on a Siemens control unit, a standard 7 inch touch screen (optional 12 inch) operate all functions of the machine. The functions, counters and any faults are displayed on the control panel.

All settings can be programmed for 100 types of material.  Of these, 5 preset ones, featuring : 

• • View from control panel, to reduce the risk of interference.
  • Electrical installation complies with EN 60204-1.
  • The electrical cabinet and the parts are suitable for an ambient temperature of 0 ° C up to + 50 ° C.
  • The number of operating hours.
  • Quantity of bales.
  • Bale length
  • Hydraulic pressure in the system
  • Oil flow in the system
  • Oil temperature
  • Alarms and malfunctions messages
  • Status of all motors and sensors (active or inactive) and many other information.

Top level safety standards

• • Safety interlock switchAll hydraulic hoses are protected with safety clamps
  • Protection covers on all inspection openings
  • Protection covers on all movable pars