Description
Overview
Six chamber (zone) stenter machine
Type: single layer horizontal clip type
Chambers: 6
Working width: 4000 mm
Treatment fabrics: woven fabrics
Mechanical speed: 0 to 80 meters per minute
Driving method: A/C variable
Heating system: gas fired burners
Power voltage: 440 V AC (-10 + 5%) 50 Hz / 3 phase (to confirm)
Control voltage: 220 V + 5% (to confirm)
Interiors: high temperature resistant paint
Exteriors: side panels and doors powder coated
Temperature: 220 degree centigrade
Type of blower: centrifugal type, four per chamber
Insulation: rockwool
Padder: 2 bowl padder
Electrical Details
2 bowl padder: 11 kW x 1 no. with VFD (invertor)
Main drive: 11 kW x 2 nos with VFD (invertor)
Blower motor: 5.5 kW x 24 nos. with VFD (invertor of 11 kW 12 nos)
Exhaust motor: 7.5 kW x 2 nos.
Fabric draw roller: 2.2 kW with VFD (invertor)
Take up roller: 2.2 kW with VFD (invertor)
Width control system: 0.33 kW per spindle
Batching: 5.5 kW
Unwinding: 3.7 kW (hydraulic unit)
Fabric Entry
Unwinding unit to unload the fabric from beam rolls; supplied with hydraulic unwinding which needs to be coupled with the beam trolley or a frame
Entry structure for feeding fabric to padder
One MS section powder coated frame structure
One swivel tension arrangement with pair of S.S. pipe
One pair E+L make KF2020 pneumatic cloth guiders
2 Bowl Vertical Padder
Main frame fabricated from MS plates with box type construction
One main roller, 305 mm diameter with ebonite coating running in bearing housed of fixed housing of split construction
One top pressure roller, 305 mm diameter with rubber coating shore hardness 75-80 A running in bearing housed of fixed housing of split construction
One pair pneumatic cylinders (right and left) for loading the pressure rollers onto the main roller; nip pressure available up to 50 kg/cm applied by pneumatic cylinders for main roller pivoted on pin fixed in main frame control panel for pneumatic control and internal piping the right and left cylinders
One trough fabricated from SS-316 with SS 316 guide roller; lifting and lowering mechanism by pneumatics
One pneumatic compensator or load cell between padder and fabric draw roller
One reduction gearbox, directly coupled to the main roller
One 11 kW A.C. motor with invertor
One nip guard
Stenter Entry
Operators platform
Fabric entry system mounting of guide rollers
MS fabricated box type body (painted) with powder-coated doors
One cross beam with machined and polished plated to rest the rail and enable its free movement based on the signals received from in feed device
One driven MS fabric draw roller with antislip fillet, with reduction gearbox coupled to the roller
One set SS guide rollers, 140 mm
Two operator control cabinets housing push buttons, speed indicators, ampere meters and other controlling buttons
Fabric Transportation
One set casted rails with ground finish enabling smooth sliding of the chain; 3300 mm entrance track with ball bearings set
One set chain tensioning system
One set chain with clip type
One set limit switches to control chain tensioning
One pair E+L KR 43 photocell with FR 15 sensors for fabric edge sensing and controlling the position of the inlet rails
One set pinning device of rubber wheel and brush rollers
Seven individual motorized screw spindles with directly coupled geared motors, 0.33 kW motor for adjusting the width by PLC
Dryer
Frame structure constructed with heavy angle section
Chamber length: 3000 mm each
Interiors will be high temperature resistant aluminum painted
Vario flow air system: closed circuit air circulation; individual blowers for top and bottom jets - 4 nos. directly couple blower motors per chamber; air ratio between top and bottom jets can be controlled and adjusted easily at fingertip through touch screen at the central control unit
Implellers are very small in size which has added advantage of lower maintenance; no mechanical damper, meaning no resistance to air flow giving uniform air distribution widthwise, lengthwise and diagonally; increased air pressure gives higher production
Gas fired burners: one per zone of 300 kW each
Dual filters: easily removable from outside for cleaning even when the machine is running
Box type assembly for panels: no welding in insulation panels avoids heat bridge formation which in turn avoids heat losses and increases drying efficiency; insulation is rockwool with 96 kg/m3 density - 140 mm thick panels
Door and panel sealing by silicon
Inner walls of the panel are painted with high temperature aluminum paint and outside is powder coated
Cooling and Delivery Section
One M.S. fabricated air cooling system with AC motor
One set heavy duty bevel gear box rested on machined rails; driven by AC motor; bevel gear box driven by spline shaft and AC motor
One controlling knob to adjust the speed of take off roller
One driven MS roller with fillet for fabric take off
One pair S.S. rollers for fabric threading
One small batching arrangement
One pair de pinning device
One control cabinet consisting of machine digital speed/production display, push buttons to increase/decrease speed, adjust width, plaiting
Batching Unit
Batching unit to batch the fabric on a frame
Pneumatically operated batching arms with drive to the batching roller
Electrical Control Panel
MS fabricated closed panel with doors and air conditioning system
A/C invertors: ABB / Allen Bradley make
Switch gears: Siemens
A.C. inverter drive for mangle, main drive, overfeed, underfeed, selvedge tension, plaiting, all blower motors and exhausts also on VFD
PLC for fully automatic version with touch screen
Wiring supplies including all cables and cable trays between machine control panel and individual motors, sensors
Buyer Preparation / Out of Scope of Supply
Foundation civil engineering and erection of equipment
Duct work and supplies for exhaust air duct
Water line and fittings in water line
Gas line and fittings in the gas line to the burners
Air compressor, connection of compressed air pipes from compressor to control panel
Liquor feeding tank
Things not mentioned in the specifications
Requires 8 40-foot containers to transport

