OVERLOCK DEVICE

BK Back Latching
To prevent seam looseness, turn over the thread and then insert into overlock seaming at the beginning of sewing.
.KD207 hand wheel: standard equipment of 700K/BK machine, optional for BK device.
.Including BK232 sewing bed.
self-installation : YES
applicable model : 737L-504M-7, 747L-514M-7, 747L-514H-7

BKT Simply Auto Back Latch
It is an ECA extending function, the sewing efficiency is extremely high. The needle plate is
specially designed with a suction channel to quickly retract the thread after trimming. The
thread length is approximately 3cm.
self-installation : NO
applicable model : 747L-514M-3-24/ECA/BKT
BKF Fully Auto Back Latch
To prevent seam looseness, turn over the thread and then insert into overlock seaming at the beginning of sewing.
- With VT suction trimmer
- Multi-operation mode setting
- Thread-end side turning. Back latch length is adjustable (Min. 2.5cm)
self-installation : NO
applicable model :737L-504M-3-04, 747L-514M-3-24

DKL①② / DKK①② Direct drive Servo Motor
Overlock sewing machine equipped with the modularized direct drive servo motors to be more flexible for diversification.
①=Manufacturer code ②=Version code + Function code
self-installation : YES
applicable model : All Overlock Series

EC Electric Type Tape / Elastic Cutter
Cuts tape/ elastic by pressing the button.
- EC-K: Standard knife (16 mm”) EC-K-A: Long knife (22 mm”)
- Hand-control button : standard Knee-control paddle (FEC34-A) : Optional
self-installation : YES
applicable model : MODEL w/LFC-3, MDDEL w/PS, MODEL w/TG

ECA / ECA-U Pneumatic Type Tape / Thread Cutter ( with Auto / Manual Switch Function)
ECB / ECB-U Solenoid Type Tape / Thread Cutter ( with Auto / Manual Switch Function )
Brand new sensor upgrades the performance. ECA is pneumatic type, and ECB is electric type,compatible with air suction slot, which makes the operation more smoothly.
- Manual, semi-auto and fully-auto operation mode, attached the switch keys, and could be adjusted by the panel.
- Mistake-proof protection device: One sensor equipped near the trimmer. If the sensor is blocked, the trimmer is deactivated effectively for avoiding from cutting the fabric.
- Manual trimming compensation stitch key: If the thread is not cut due to the operation, it can be done by the key.
- Under the manual mode, it could be fully backward pedaled to cut the thread.
- For those special fabrics such as mesh fabric, mercerized cotton etc, the stitches are easily accomplished as well as the trimming by the professional computer controlled without mistake-trimming.
| Three sensors | Cutter | Foot Lifter | Pneumatic Set | ||
| Suction Set | Suction Channel | ||||
| ECA / ECA-U | V | Pneumatic | Pneumatic | V | V |
| ECB / ECB-U | V | Electric | Electric | V | V |
self-installation : NO
applicable model : 737L, 747L 757L, 767L

FG Side Tape Holder
For tape feeding, on the right side of the table.
self-installation : YES
applicable model : MODEL w/PS, MODEL w/TA

GA Gathering Device
Continuous or intermittent random gathering on lower ply.
P: Piping folder KV57 (tape width 25mm / finish width 6mm) is optional. For piping with rope inside, presser foot requires a trench, which is marked with P at the end of parts code. eg
P204P.
self-installation : YES
applicable model : 747KT-514H, 747L-514M-8, 757L-516M-8

GAS Gathering Presser-foot
Continuous or intermittent random gathering on lower layer of fabric.
Part NO. ZGL04-P324-A
self-installation : YES
applicable model : 747L-514M

GAL Flounce/Falbala fine edging
Elastic fabric fine serging with a pull-back device makes flounce/ falbala style.
Adjust the pressure of pull-back plate to have big or small waves.
self-installation : YES
applicable model : 737L-504F-2

KB301 Simple anti curly selvedge device
Easy to install, effectively solve curly selvedge problem.
self-installation : YES
applicable model : MODEL 700L, MODEL 700KT

KB561-A Flat Bed Cloth Plate
To convert cylinder bed machine into flat bed machine. For normal overlock sewing operation.
self-installation : YES
applicable model : 700KS

FA Electric Type Side Tape Feeding Device
- With electronic switch to control the feeding length of tape, elastic, or lace to create smoother sewing.
- Tape feeding will be on the right hand side of the control box.
self-installation : YES
applicable model : 700KS

LFA Electric Type Upper Tape Feeding Device
To keep constant tension for sewing. Elastic tape is fed by motor for zero tension and required length.
Voltage, 110V(Part NO. LFA-1A) / 220V(Part NO. LFA-2A)
self-installation : YES
applicable model : MODEL w/LFC-3, MODEL w/TG

LF290 Untangline Wheel
An optional device to be equipped with LFA (tape feeding device). Untangling the elastic tape
by reverse rotation wheel is a pre-feeding process.
Voltage, 110V(Part NO. LF290-A1) / 220V(Part NO. LF290-A2)
self-installation : YES
applicable model : MODEL w/LFA

LFC-3 Mechanical Type Elastic Feeding
To Control elastic tape tension by adjusting the gear.
Presser foot:
P216-3 for 3 thread
P216-4 for 4 thread
Standard is P216. Special demand by request.
| Presser Foot | P216 | P217 | P218 | WP219 |
| Elastic Size | 2-13mm | 2-20mm | 2-30mm | 2-35mm |
| Remark | Standard | Optional | ||
self-installation : YES

LS Upper Tape Holder
For top feeding tape or elastic.
self-installation : YES
applicable model : MODEL w/LFC-3, MODEL w/TG

PS Pocket Sewing
Overlock sewing with tape binding for strengthening the pocket edge.
PS201: Folder, for tape width 3/8″ (9.5mm)
self-installation : YES
applicable model : 757L-516M-3


UC Top and Bottom Anti-Curly Edge
The pneumatic device solves the problem of curly edge material. The fabric edge is flattened by air before entering the presser foot. Applicable to up-roll, down-roll, and all kinds of curly edge situations, which highly improves the sewing efficiency.
There are 3 types for this device. UC-L (High-end electronic control type), UC-L2 (economic mechanical type), and UC-L3 (Up-roll only type).


self-installation : YES
applicable model : 700L Series

TA Two Chain stitch Pocket Sewing Device
Tape binding by two chainstitch sewing for strengthening the pocket edge.
Standard folder(tape width 25.4mm/ finish width 6.4mm)
self-installation : YES
applicable model : 757L-401M

TB-K1 Machine Body Supporter for Full Submerged Table
700K series machine base for full submerged table
self-installation : YES
applicable model : Table 700K-T2, 700K-T3

TG Tape Guide
To prevent knit wear shoulder stretching, insert woven tape for strengthening.
P254J-4A: Presser foot for maximum tape width is 13 mm.
self-installation : YES
applicable model : 747L-514M-3, 747L-514H-4

VT Side Suction Thread Chain Cutter Device
Take thread into trimmer tube by suction motor or air compressor. (Applicable for 3~4 thread
machine)
self-installation : YES
applicable model : 737L, 747L, 737KS, 747KS

VTE / VTE-U Side Suction Auto Thread Chain Cutter Device (with Sensor-controlled Energy-saving Device )
Our computerized system drives sensor-controlled energy saving device.
Sensor checks the fabric edge. Turn the button of control box to set the time of air suction of chain-cutter.
It saves the energy consuming of air compressor system and also saves thread consuming.
| Front/middle sensors | Foot Lifter | Pneumatic Set | ||
| Suction Set | Suction Channel | |||
| VTE | V | Pneumatic | V | V |
| VTE-U | V | Pneumatic | V | V |
self-installation : YES
applicable model :737L, 747L

CT Flat Suction Thread Chain Cutter Device
Take thread into trimmer tube by suction motor or air compressor.
(Applicable for 4~6 thread machine)
self-installation : YES
applicable model : 757L, 767L, 757KT

CTE/CTE-U Flat Suction Auto Thread Chain Cutter Device(with Sensor-controlled Energy-saving Device )
Sensor checks the fabric edge. It saves the energy consuming of air compressor system and also saves thread consuming.
- The design of the suction inlet of the trimmer makes the trimming faster.
- For those special fabrics such as mesh fabric, mercerized cotton etc, the stitches are easily accomplished as well as the trimming by the professional computer controlled without mistake-trimming.
- Functions with auto stop sewing after trimming and with no fabric can save the stitches.
| Front/middle sensors | Foot Lifter | Pneumatic Set | ||
| Suction Set | Suction Channel | |||
| CTE | V | Pneumatic | V | V |
| CTE-U | V | Pneumatic | V | V |
self-installation : YES
applicable model : 737L-504M-7, 747L-514M-7, 747L-514H-7

WR/ LFC-3 Spaghetti Sewing
Overlock sewing at knit tape edge and then turn it into tube. For swimwears, night gowns etc.
Folder size: tape width is 22.2mm, finished tube size is 5mm in diameter.
self-installation : YES
applicable model : 737L

TUA-3X 3-in-1 Dust Collecting Suction Device
Standard device of sensor-controlled machine (ECA, ECB, CTE, VTE), which cleans away thread ends (rear suction), cloth waste (front suction), and lint (inner suction). Compatible to 700L, 700KT/KS/KST.






