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Ref. : 300042092
Status: For sale
Delivery time: 1 - 2 months
Description: Production of block bottom valve sacks and block bottom open mouth sacks
To produce block bottom valve sacks and block bottom open mouth sacksTECHNICAL DATASack width, double flat 350-600 mmSack length 450-910 mmBottom width (B > 160 mm only for sacks open on one side) 80-180 mmWidth of bottom applied 170-380 mmCentral bottom distance 350-750 mmCutting length of tubular fabric (1090 mm for sacks open on one side) 530-1090 mmFeed length 635 mmValve:Cutting length 80-200 mmFabric width 170-330 mmBottom patchCutting length 230-480 mmFabric width 75-175 mmProduction speed:Bottom width≤ 140mm max. 80* sacks/minBottom width> 140mm max. 50* sacks/minMaterial specification:Tubular fabric (2.5-5 mm PP tapes)Fabric weight 60-80 g/m²Coating of the outer sides 20-30 g/m²15% PE, 85% PPAdhesion of coating min. 2.7 N/cmWidth tolerance ±7 mmWeight tolerance (fabric + coating)±3 g/m²Excess coating max. 5 mmOutside diameter of the main fabric roll max. 1500 mmat the beginning of the processing min. 1000 mmInside diameter of the core 203 mmMax. edge displacement (due to transverse motion unit) 15 mmFlat fabric for valve/bottom patch(2.5-5 mm PP tapes)Fabric weight 60-80 g/m²Bilateral coating 20-30 g/m²15% PE, 85% PPAdhesion of coating min. 2.7 N/cmWidth tolerance ±3 mmWeight tolerance (fabric + coating) ±3 g/m²Outside diameter of the fabric roll at the beginning of the processing max. 1000 mm / min. 800 mmInside diameter of the core 203 mm / 8"UNWINDING STATIONAutomatic control for guiding the fabric length with transversely movable unwinding stand, tilting bearings and pneumatic brake (correction distance ± 100 mm)1 One sided semi automatic expansion shaft for a core diameter of 8" (203 mm) with an external loading thorn. STANDARD PERFORATION SYSTEMPowered by 2 motors, for providing a pin perforation in the tubular fabric to achieve better air permeability of the AD*STAR® sack. Perforation is effected over the complete surface of the sack.Needle Number:Ø 0.62 --> 2997 needleØ 0.88 --> 2430 needleNumber of holes: ~ 105.000 holes/m²OPENING DEVICE FOR TUBULAR FABRICOpening tool supported to be floating between the 2 upper and the 2 lower rollersCROSS-CUTTING UNIT for cutting the fabric to the preset length:Electronic forward/backward inching operation to minimize the waste rate at fabric roll changeCompensatorPrint mark reading device for printed tubular fabricHOLE PUNCHING UNITFor fixing the valve patch to the main fabricSpindle adjustment for displacing the cross-cutting unit FEED SECTIONServo-drive with self-referencing function, ensuring a precise sack transferContinuous bottom opening stationContinuous transport unit with position monitoring. Automatic shutdown when any sack is not correct positioned.MANUALLY ADJUSTABLE BOTTOM CENTER DISTANCE for sack length adjustmentVALVE UNITThe valve patch, which has been cut from flat fabric, is applied onto the sack and welded by means of hot air. Double unwinding station for semi automatic roll change,Monitoring system for fabric end and automatic control for guiding the fabric lengthPneumatic expansion chuckTraction unit with separate servo-drive Cutting unit for the valve patchesSuction/cooling cylinder designed with extra bearing coverHot air welding deviceBOTTOM PATCH DEVICES applied onto the closed sack bottoms and welded by means of hot air. Double unwinding station for semi automatic roll changeMonitoring system for fabric end and automatic control for guiding the fabric lengthPneumatic expansion chuckTraction unit Print mark reading deviceCutting unit for the bottom patchesSuction/cooling cylinder Hot air welding device.CHANGE-OVER FACILITY FOR THE PRODUCTION OF OPEN MOUTH SACKSPROTECTIVE COVERSSTACKING UNITMAIN DRIVEPosition-controlled servomotorsDuplex chain driveControl elementsDrive system of the servomotors with intermediate circuit coupling for an equal energy exchangeTWO-CIRCUIT TEMPERING UNIT INCLUDING CLOSED WATER CIRCUIT
Guarantee: Without guarantee
Current condition: In Production
Availability: 1 - 2 months
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