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LBHS-1790E SERIES
Mechatronic High Speed Lockstitch Buttonholing Machine

Machine with the new type rotary hook gives smooth operation and maximize sewing work efficiency!
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LBHS-1790E Instuction book & Part list
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Mechatronic High Speed Lockstitch Buttonholing Machine
1. Fully computerised digital control system→ Allows arbitrary adjustment of keyhole length → Can switch between different keyhole patterns → Automatically calculates keyhole cutting length.
2. Features a stepper motor cutter, ensuring quiet operation and smooth keyhole cutting edges.
3. Equipped with 30 diverse standard keyhole patterns, with system memory capable of storing up to 500 keyhole patterns.

Automatic
Thread Cutter

Electronic
Thread Clamp

Automatic
Presser Foot Lift

Automatic
Thread Release

Automatic
Needle Positioning

LED Light

Keyholes typically

Standard keyholes typically only allow for buttonholes approximately 2.5cm to 4cm in length (such as shirt buttons), while larger keyholes are designed for coats, thick jackets, duvet covers, or decorative large buttons, supporting extra-long keyholes up to 12cm in length.(Achieve industry-leading buttonholes with C-type clamp).

Optional Work Clamp Foot
A: 3.5cm C: 12cm
B: 4.1 cm D: Knitting Specialized

Beautiful stitches even in small patterns.

Achieve minimum resolution of needle zigzag with 0.05 increment to prevent thread with fraying ends. It is capable to work on different type of sewing patterns.

The new type rotary hook helps to prevent thread breaks, uneven winding and other related issues.
With low tension, machine makes a quality finish for purl stitch and whip stitch.

Four types of underlay patterns

1. This type of underlay stitch is effective in preventing seams from unraveling and giving extra strength on buttonhole stitches.
2. The type of underlay stitch is effective in preventing seams from unraveling and preventing seam puckering.
3. This type of underlay stitch is effective in preventing seams from unraveling and used after rectangle and mountain line underlay stitches.
4. Zig-zag underlay stitch gives an extra support to the buttonhole area before stitching and cutting to make a nice and beautiful buttonhole.

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Dear Customer, If you have any product-related questions, please provide the model number (e.g., 700L) so we can assist you more quickly. Thank you!