Brother DB2-DD7100A Specifications

DB2−DD7100A 1/12

2000.7

DB2− DD7100A

Single N eedle Direct Drive Straight Lock
Stitcher w ith Thread Trimmer

Model

DB2− DD7100 − A −

Specifications

¨¨S ¨¨1 ¨¨3 ¨¨5

Application −

Difficult −to−sew

and light materials

Medium materials Heavy materials

Max. speed 3,000 rpm 4,000 rpm 5,000 rpm 3,500 rpm

Max. stitch length 4.2 mm 5 mm

Manual 6 mm

Knee 13 mm

Height of

Presser foot

Auto 10 mm

Type and height of feed dog − 4 row 0.8 mm 3 row 0.8 mm 3 row (rough) 1.2 mm

Needles −

DB × 1NS #9
DB × 5NS #9

DB × 1 #11
DB × 5 #11

DB × 1 #22
DB × 5 #22

Hook RP hook Rotary hook for thread trimming

Bed size 476 × 178 mm

Arm pocket size 266.5 × 134.5 mm

Operation

panel
B −40

B −100

Application

S −
1

Difficult−to−sew

and light materials

3 Medium materials
5 Heavy materials

Lower thread

detector

0 −
1

¡

Device

Thread

Trimmer

Quick back

Device

Thread

wiper

Automatic

presser lifter

3 ¡

¡

− −

4

¡ ¡ ¡

−

9

¡ ¡ ¡ ¡

DB2−DD7100A 2/12

2000.7

Motor specifications

High sewing speed 220 rpm to the maximum (Changeable)
Low sewing speed 220 rpm
Front / continuous backtacking speed 220 rpm to 1,800 rpm (Changeable)
End backtacking speed 1,800 rpm
Motor AC servomotor (3−phase / single−phase 4 pole 400 W,100 240 V)
Control circuit Microcomputer

Control box : MD721 (Single−phase), MD731 (3−phase)

Operating panel

B-40 B-100

J80627−001 FOR JAPAN ONLY J80628−001

FOR EXPORT J80629−001

Basic function Pattern sewing

B −40 B−100

B −40 B −100

AUTO Automatic sewing

¡ ¡

Normal lock stitch

¡ ¡

Start backtack (0−9) ¡ ¡

Fixed stitch (1-99) ¡ ¡

End backtack (0−9)

¡ ¡

Name label stitch (1-99)

¡ ¡

Continuous backtack (0-9)

¡ ¡

Pleats presser stitch (1-99)

¡ ¡

Correction sewing

¡ ¡

PATTRRN Pattern stitch

− ¡

Half stitch

¡ ¡

Pattern setting

Sewing speed setting ¡ ¡

B −40 B −100

Slow start sewing

¡ ¡

Automatic thread trimming

¡ ¡

Needle up stop / Needle down stop ¡ ¡

Automatic presser foot lifting

−

¡

Lower thread detector (optional)

¡ ¡

BACK Back stitch

− ¡

CONTINUE Continuous stitch

−

¡

DELETE Step deletion

−

¡

INSERT Step insertion

− ¡

FREE

Temporarily cancel programming
sewing

−

¡

DB2−DD7100A 3/12

2000.7

Options

Part name Code
Presser foot lifting solenoid set A With knee switch S80008−001
Presser foot lifting solenoid set B W ithout knee switch S80009−001
Bobbin thread detector set S80007−001
Thread wiper set
Tension gauge set 183922−001
Auto bobbin changer
Set for new synthetic fabric*

For -¨¨3 models 183910−101

* If changing − ¨¨1 models to new synthetic fabric specifications, please use the following parts.
Rotary hook box assy S44338− 901
Cap screw S35786− 001

Work table parts

Part name Code
Standing operation 2 pedal #6 (Two pedals + kick pedal) J80081-040
Standing operation 3 pedal #40 (Three pedals) J80380-040
Spacer set 183504-009
Caster set 183501-001
Foot plug set, NDD (For control box) J02953-001

DB2−DD7100A 4/12

2000.7

G auge parts list

3ROW [Models, DD7100, DD7100A, B736, B737MK II]