1   Machine Type :

MT45 : General Sewing (Standard Type)
MTS45 : General Sewing(Short Cylinder Bed Type)
MT40 : General Sewing (Single Chain Stitch)
MTD45 : With Direct Drive Servo Motor

2   Number Of Needle :

01 : Single Needle
04 : 4-Needle
06 : 6-Needle
09 : 9-Needle
12 : 12-Needle
13 : 13-Needle
17 : 17-Needle
23 : 23-Needle
25 : 25-Needle
33 : 33-Needle
38 : 38-Needle
50 : 50-Needle

3  Puller Teeth :

Standard Type :
Upper Roller : 28 Teeth
Lower Roller : 15 TeethM

0 : Upper Roller : 0 Teeth
 Lower Roller : 0 Teeth

1 : Upper Roller : 18 Teeth
 Lower Roller : 10 Teeth

2 : Upper Roller : 22 Teeth
 Lower Roller : 12 Teeth

3 : Upper Grooved Steel Roller

Roller Length :
MT4501P ~ MT4504P : 62 m.m.
MT4506P ~ MT4523P : 79 m.m.

4  Needle Distance Code / Needle Distance :

5  Sub-class :

A : Bisector Presser Foot
B : Bigger Needle Hole

6  Optional Device :

AL004 : Pneumatic Presser Foot Lifting Device
TB004 : Reinforce Tape Attaching Device
PFE03 : Electric Presser Foot Lifting Device
PMD : Lower Front Feed Metering Device
UT04A : Under Bed Thread Trimmer For 4-Needle
UT12A : Under Bed Thread Trimmer For 12-Needle
TCB41 : Pneumatic Type Tape Cutting Device
TCS41 : Pneumatic Type Lower Front Tape Cutting Device