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BT device

Mechanical backlatching device

For productivity improvement - Cutters etc.

  • Thanks to this device, the thread chain is backlatched by sewing it into the overlock seams at the start of sewing in a sleeve closing operation and other similar operations.
  • This feature prevents the threads from unraveling at the start of sewing and then eliminates the need for bartacking.

Sewing machine models which the device can be installed on

EX series

EX5200 : Overedgers

  • HIGH GRADE
  • Bottom feed
Subclasses Use Maximum speed Fabric weight Remarks
EX5204-82/233 ・[Use]Backlatching ・[Maximum speed]7,500 sti/min ・[Fabric weight]Light~Medium ・[Remarks]
EX5204-82/233K ・[Use]Backlatching ・[Maximum speed]7,500 sti/min ・[Fabric weight]Light~Medium ・[Remarks]

EXT series

EXT5200 : Variable top feed, overedgers

  • HIGH GRADE
  • Variable top feed
Subclasses Use Maximum speed Fabric weight Remarks
EXT5214-84/433 ・[Use]Backlatching ・[Maximum speed]6,300 sti/min ・[Fabric weight]Heavy ・[Remarks]
EXT5214-84/433K ・[Use]Backlatching ・[Maximum speed]6,300 sti/min ・[Fabric weight]Heavy ・[Remarks]

MX series

MX5200 : Overedgers

  • MIDDLE CLASS
  • Bottom feed
Subclasses Use Maximum speed Fabric weight Remarks
MX5204-82/233 ・[Use]Backlatching ・[Maximum speed]8,000 sti/min ・[Fabric weight]Medium~Heavy ・[Remarks]
MX5214-83/333 ・[Use]Backlatching ・[Maximum speed]7,500 sti/min ・[Fabric weight]Heavy ・[Remarks]

[available only in limited areas] M900 series equipped with Direct Drive Motor

M952(/D222) : Overedgers

  • ECONOMY TYPE
  • Bottom feed
Subclasses Use Maximum speed Fabric weight Remarks
M952-180-4(/D222) ・[Use]Backlatching ・[Maximum speed]7,000 (5,500 with DDM) sti/min ・[Fabric weight]Light~Medium ・[Remarks]
M952-181-2x4(/D222) ・[Use]Backlatching ・[Maximum speed]7,000 (5,500 with DDM) sti/min ・[Fabric weight]Light~Medium ・[Remarks]

E256 series

E256 : Curved needle overedger

  • HIGH GRADE
  • Bottom feed
Subclasses Use Maximum speed Fabric weight Remarks
E256-183(K)/504-243-N ・[Use]Backlatching ・[Maximum speed]6,000 sti/min ・[Fabric weight]Light~Medium ・[Remarks]
E256-183(K)/504-264-N ・[Use]Backlatching ・[Maximum speed]6,000 sti/min ・[Fabric weight]Light~Medium ・[Remarks]

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