Specifications
3 - 1
3 Specifications
3.01 PFAFF 471, 474 , 491
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Stitch type: .................................................................................................. 301 (lockstitch)
Balance wheel eff. diameter:.................................................................................... 65 mm
Fabric clearance (roller presser raised): ...................................................................... 7 mm
Clearance width: .................................................................................................... 245 mm
Clearance height: .................................................................................................... 115 mm
Post height: ............................................................................................................ 180 mm
Dimensions of sewing head:
Length: .......................................................................................................approx. 615 mm
Width:.........................................................................................................approx. 240 mm
Height (above table):...................................................................................approx. 450 mm
Size of bedplate: ............................................................................................518 x 177 mm
Max. speed:
Model A + B.........................................................................................2800 stichtes/min
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Model B/C ............................................................................................2500 stichtes/min
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Trimming margin (for -725/.. and -726/..): ....................................................... 0.8 - 2.5 mm
Trimming speed (for -725/.. and -726/..): ...................................................... 2800 cuts/min
Connection data:
Operating voltage: ........................................................................... 230 V ± 10%, 50/60 Hz
Max. power consumption: ....................................................................................... 1.2 kVA
Fuse protection:..............................................................................1 x 16 A, delayed action
Working noise level:
Emission at workplace
PFAFF 471 and 491 models A + B n = 2200 spm: ............................................... 80 dB(A)
PFAFF 471 and 491 models B/C n = 2000 spm:.................................................. 78 dB(A)
PFAFF 474 model B n = 2200 spm: ..................................................................... 81 dB(A)
PFAFF 474 model B/C n = 2000 spm: .................................................................. 79 dB(A)
( Noise measurement in accordance with DIN 45 635-48-A-1 )
Net weight of sewing head: ............................................................................ approx. 53 kg
Gross weight of sewing head: ........................................................................ approx. 61 kg
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Subject to alteration
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Dependent on material, working cycle and stitch length
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