Bale wrapper Sipma OS 7521 Mira

Technical information

The SIPMA OS 7521 MIRA bale wrappers machine is fully automated self-loading machine, attached to the tractor. Full automation of the process is provided by an advanced control system which allows pre-programming a wrapping cycle.

Technological system ‘side-back’ allows working in a direction perpendicular or parallel to the direction of the press work (across a field), ensures fast loading of bales, wrapping with foil during the drive until the next bale and high efficiency.

Advanced hydraulic block causes lower resistance on hydraulic system and gives more possibilities of controlling through the setting of speed of all control function.

Hydraulic system with  Load-Sensing function affects smaller fuel consumption and grows the liveliness of tractor hydraulic pump.

Improvement the work culture of the hydraulic system through the double reduction of average work pressure and the reduction of power consumption.

Universal film dispenser allows the use of 0.5 and 0.75 m wide films.

Aluminum, milled film dispenser rollers provide the initial film stretching and appropriate adhesion during the wrapping process.

Hydraulic film catcher-cutter works automatically after each bale wrapping process, provides a considerable acceleration of the wrapping process and its efficiency.

The sensor on the loading arm ensures automaticly wrapping start process.

The brake of the motor makes impossible to move the table during the drive.

Bale elevator allows for putting bales on their bottom or rolling them on their side surface into the field and protects the wrapped bale from possible damage during unloading.

Wide tyres provide the opportunity to work on wetlands and peat fields.

Capabilities of the control panel:​

• manual or fully automatic operation of the machine
• monitoring of the ongoing process of winding (number of wraps counter)
• counting the number of wrapped bales
• measuring the time of operation [h] with the accuracy of 1 minute
• counting the achieved performance [bales/h]
• measuring the volume of work on five independent fields -  independent calculation of the number of wrapped bales, working time and achieved performance
• programming the number of film layers (depending on the kind of film used), when reached, the machine passages automatically to next work stage
• displaying the status of reed sensors (assessing operating efficiency or lack), thanks to which we are able to change a defective sensor without calling the service
• displaying the sum of wrapped bales since installing the board computer on the wrappers machine
• large LCD graphic display showing the actual parameters of work
• smooth control of the rotating speed of the table during work
• programming the speed of lifting and lowering the loading arm
• controlling the foil feeding - an additional sensor of foil stops the bale wrapping process in case of foil breaks or finishes
• setting price for wrapping one bale for a given filed
• controlling the state of oil filter pollution
• displaying on the screen information concerning work in the whole current season - summing up values of data from all fields, where the bale wrapper worked (number of bales wrapped throughout the season, total working time in a season, efficiency in a season)