Brother DB2-DD7100 Product manual
Brother DB2-DD7100 is the latest single-needle straight lock stitcher with a built-in motor for direct drive and thread trimming. It features a dry-head lubrication system for ease of maintenance and energy savings. The DD7100 also offers a comfortable working environment with reduced operating noise, improved safety features, and a streamlined design. Its flexible handling allows for stitching various materials, including challenging synthetic fabrics.
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DB2-DD7100
Single needle direct drive straight lock stitcher with thread trimmer
PRODUCT MANUAL
D Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
II Specifications . . ... . . . . . ... . . . .. . . . .. .. .. .. 1
II Sales points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
II Optional parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
II DIP switch functions ...... ... . . ... . . . . . 9
II Parameter setting flowchart . . . . . . . . . 10
II Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 11
II Memory switch setting flowchart .. 12
II Memory switches . . . . . . . . . . . . . . . . . . . . . . . 13
1m Connector configuration ............... 16
m Perspective view . . . . . . . . . . . . . . . . . . . . . .. . 17From the library of: Superior Sewing Machine & Supply LLC
) )
DB2-DD7100
Single needle direct drive straight lock stitcher with thread trimmer
PRODUCT MANUAL
D Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
II Specifications . . ... . . . . . ... . . . .. . . . .. .. .. .. 1
II Sales points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
II Optional parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
II DIP switch functions ...... ... . . ... . . . . . 9
II Parameter setting flowchart . . . . . . . . . 10
II Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 11
II Memory switch setting flowchart .. 12
II Memory switches . . . . . . . . . . . . . . . . . . . . . . . 13
1m Connector configuration ............... 16
m Perspective view . . . . . . . . . . . . . . . . . . . . . .. . 17From the library of: Superior Sewing Machine & Supply LLC
D Outline
• What is the DD71 00?
007100 is the newest and most up-to-date single needle straight lock stitcher in our range, with a
motor which is integrated into the machine head. With the adoption of a new lubrication system and
further improvements to conventional functions, this machine is designed to give better cost
performance by parts sharing and thorough review of the design.
• The motor, which used to be equipped under the table, is built into the machine head, and is
directly coupled to the upper shaft.
• A dry-head tank lubrication method is adopted.
• Measures to reduce machine operating noise and increase safety have been taken to produce a
more comfortable working environment.
• Specification -1 is provided to flexibly cope with the sewing of difficult-to-sew materials in addi-
tion to general thin materials.
.. ..
fJ Specifications
• Machine head specifications
082-007100- 9
I
99-l I
1
I II
Device Lower thread detector Application Operation panel
Thread Automatic
wiper presser lifter
3 - -
4 0 -
o I None 1 *Difficult-to-sew B-20
. 1 I Installed and thin materials 8-40
3 Medium heavy B-100materials
9 0 0 5 Heavy materials
)
.. 007100
Single needle direct drive straight lock stitcher
with thread trimmer
• Difficult-to-sew material specifications refers to the ability to sew a range
of materials from general thin materials to materials made from new
synthetic fibers, without puckering or unevenness in the seam occurring.
()
1From the library of: Superior Sewing Machine & Supply LLC
• What is the DD71 00?
007100 is the newest and most up-to-date single needle straight lock stitcher in our range, with a
motor which is integrated into the machine head. With the adoption of a new lubrication system and
further improvements to conventional functions, this machine is designed to give better cost
performance by parts sharing and thorough review of the design.
• The motor, which used to be equipped under the table, is built into the machine head, and is
directly coupled to the upper shaft.
• A dry-head tank lubrication method is adopted.
• Measures to reduce machine operating noise and increase safety have been taken to produce a
more comfortable working environment.
• Specification -1 is provided to flexibly cope with the sewing of difficult-to-sew materials in addi-
tion to general thin materials.
.. ..
fJ Specifications
• Machine head specifications
082-007100- 9
I
99-l I
1
I II
Device Lower thread detector Application Operation panel
Thread Automatic
wiper presser lifter
3 - -
4 0 -
o I None 1 *Difficult-to-sew B-20
. 1 I Installed and thin materials 8-40
3 Medium heavy B-100materials
9 0 0 5 Heavy materials
)
.. 007100
Single needle direct drive straight lock stitcher
with thread trimmer
• Difficult-to-sew material specifications refers to the ability to sew a range
of materials from general thin materials to materials made from new
synthetic fibers, without puckering or unevenness in the seam occurring.
()
1From the library of: Superior Sewing Machine & Supply LLC
)
Specification DD7100-001 DD7100-003 DD7100-005
Application For thin and For medium heavy For heavy materialsdifficult-to-sew materials materials
Max. sewing speed 4,000 spm 5,000 spm 3,500 spm
Max. stitch length 4.2 mm 5 mm
Needle bar stroke 29 mm 31 mm 35 mm
Thread take-up stroke 57.4 mm 61 mm
Type of feed dog 4 rows 4 rows (rough)
Feed dog height 0.8 mm 1.2 mm
Presser lifter 6 mm
Presser lever
foot Knee lifter 13 mm
height Automatic
presser lifter 10 mm
Presser foot pressure 9.8- 39.2N 39.2- 78.4N 58.8- 98N
(1 - 4 kgf) (4 - 8 kgf) (6 - 10 kgf)
Bed size 476 x 178 mm
Arm pocket size 266.5 x 134.5 mm
Needle DB X 1 NS#9 DB X 1 #11 DB X 1 #22
DP X 5 NS#9 DP X 5 #11 DP X 5 #22
Rotary hook For thread trimming
Mass 41 kg
Sewing speed depends on the machine specifications.
• Motor specifications
High sewing speed 220 spm to the maximum
(Changeable)
Low sewing speed 220 spm
Front/continuous backtacking speed 220 spm to 1,800 spm
(Changeable)
End backtacking speed 1,800 spm
AC servomotorMotor (3-phase/single-phase 4 pole 400W, 100 - 240V)
Control circuit
Control box MD721 (Single-phase)
MD731 (3-phase)
Microcomputer
)
• Operation panel
8·20 D.
a-eo e-a A B
• ·;OJJIll-<~
•• ..,--...9 11 11
•• ••e v v
•• -·B-40 D.
B-40 ea A B C D •
O,OOEO• •• -~
jll-cl
•m_....9
e 11111111 ••
••v v v vee•
-·B 100- D.
A B C D FIGTEIIN
B-100 STEP IIUIFIIlliDI••
·;DODD• ,. D oo••ea 2 ~& o•mjll-cl
11111111. 11 11 ••
••_....9 ,o 11
e vvvv. .!.-1 v v vcee
--• Quick reference for indication and meaning
on the operation panel
B-20 B-40 8-100
! Normal lock stitch 0 0 0 ~ Automatic thread trimming
.j.!.!. Half stitch 0 0 0 AUTO Automatic sewing
A~B1 ,a1 Start backtack (0-9) 0 0 0 FJIEE Temporarily cancel
~c1o,~a' End backtack (0-9) 0 0 0 programming sewing
~,q,& Continuous backtack (0-9) 0 0 DELETE Step deletion
-
IE Fixed stitch (1-99) 0 0 0 II&Rf Step insertion
CJ Name label stitch (1-99) - 0 0 e Sewing speed setting
!.e1 Pleats presser stitch (1-99) - 0 0 .r Slow start sewing
PlA1TERH Pattern stitch - - 0 i Correction sewing
BACK Back stitch - - 0 J.A. Needle up stop/
Needle down stop
coma Continuous stitch - - 0 Lower thread detector
- Automatic presser foot lifting - - 0 lill=t lQ. (optional)..!....
B-20 B-40 B-100
0 0 0
0 0 0
- - 0
- - 0
- - 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
2From the library of: Superior Sewing Machine & Supply LLC
Specification DD7100-001 DD7100-003 DD7100-005
Application For thin and For medium heavy For heavy materialsdifficult-to-sew materials materials
Max. sewing speed 4,000 spm 5,000 spm 3,500 spm
Max. stitch length 4.2 mm 5 mm
Needle bar stroke 29 mm 31 mm 35 mm
Thread take-up stroke 57.4 mm 61 mm
Type of feed dog 4 rows 4 rows (rough)
Feed dog height 0.8 mm 1.2 mm
Presser lifter 6 mm
Presser lever
foot Knee lifter 13 mm
height Automatic
presser lifter 10 mm
Presser foot pressure 9.8- 39.2N 39.2- 78.4N 58.8- 98N
(1 - 4 kgf) (4 - 8 kgf) (6 - 10 kgf)
Bed size 476 x 178 mm
Arm pocket size 266.5 x 134.5 mm
Needle DB X 1 NS#9 DB X 1 #11 DB X 1 #22
DP X 5 NS#9 DP X 5 #11 DP X 5 #22
Rotary hook For thread trimming
Mass 41 kg
Sewing speed depends on the machine specifications.
• Motor specifications
High sewing speed 220 spm to the maximum
(Changeable)
Low sewing speed 220 spm
Front/continuous backtacking speed 220 spm to 1,800 spm
(Changeable)
End backtacking speed 1,800 spm
AC servomotorMotor (3-phase/single-phase 4 pole 400W, 100 - 240V)
Control circuit
Control box MD721 (Single-phase)
MD731 (3-phase)
Microcomputer
)
• Operation panel
8·20 D.
a-eo e-a A B
• ·;OJJIll-<~
•• ..,--...9 11 11
•• ••e v v
•• -·B-40 D.
B-40 ea A B C D •
O,OOEO• •• -~
jll-cl
•m_....9
e 11111111 ••
••v v v vee•
-·B 100- D.
A B C D FIGTEIIN
B-100 STEP IIUIFIIlliDI••
·;DODD• ,. D oo••ea 2 ~& o•mjll-cl
11111111. 11 11 ••
••_....9 ,o 11
e vvvv. .!.-1 v v vcee
--• Quick reference for indication and meaning
on the operation panel
B-20 B-40 8-100
! Normal lock stitch 0 0 0 ~ Automatic thread trimming
.j.!.!. Half stitch 0 0 0 AUTO Automatic sewing
A~B1 ,a1 Start backtack (0-9) 0 0 0 FJIEE Temporarily cancel
~c1o,~a' End backtack (0-9) 0 0 0 programming sewing
~,q,& Continuous backtack (0-9) 0 0 DELETE Step deletion
-
IE Fixed stitch (1-99) 0 0 0 II&Rf Step insertion
CJ Name label stitch (1-99) - 0 0 e Sewing speed setting
!.e1 Pleats presser stitch (1-99) - 0 0 .r Slow start sewing
PlA1TERH Pattern stitch - - 0 i Correction sewing
BACK Back stitch - - 0 J.A. Needle up stop/
Needle down stop
coma Continuous stitch - - 0 Lower thread detector
- Automatic presser foot lifting - - 0 lill=t lQ. (optional)..!....
B-20 B-40 B-100
0 0 0
0 0 0
- - 0
- - 0
- - 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
2From the library of: Superior Sewing Machine & Supply LLC
II Sales points
Machine head with built-in motor
• The servomotor is directly coupled to the upper shaft, and because this
eliminates the need for a V-belt, motor power is transmitted directly
without any losses. In addition, power consumption is also kept to a
minimum so that extensive energy savings can also be achieved
(approximately 25% compared to previous Brother models).
Pedal
---~
Warm-up time
007100 8737 Markll
4,000 spm 96 ms 155 ms
5,000 spm 103 ms 189 ms
• Elimination of the V-belt also means that flakes from the belt as it wears
will no longer make the material dirty.
• Because the motor is built-in, it is no longer necessary to mount a motor
on the work table. Jobs such as installation of belt covers and a bobbin
winder have also been eliminated, so that overall setting up has become
much easier.
• The motor can be exchanged easily.
<Upper shaft mechanism>
• Rotation of the motor 0 is transmitted directly to the upper shaft 8.
<Lower shaft mechanism>
• Timing pulley (U) 8 in the joint set transmits the rotation of the motor 0 to the timing pulley
(D) assembly 8 and the lower shaft 0 via the timing belt 8.
I,)
3From the library of: Superior Sewing Machine & Supply LLC
Machine head with built-in motor
• The servomotor is directly coupled to the upper shaft, and because this
eliminates the need for a V-belt, motor power is transmitted directly
without any losses. In addition, power consumption is also kept to a
minimum so that extensive energy savings can also be achieved
(approximately 25% compared to previous Brother models).
Pedal
---~
Warm-up time
007100 8737 Markll
4,000 spm 96 ms 155 ms
5,000 spm 103 ms 189 ms
• Elimination of the V-belt also means that flakes from the belt as it wears
will no longer make the material dirty.
• Because the motor is built-in, it is no longer necessary to mount a motor
on the work table. Jobs such as installation of belt covers and a bobbin
winder have also been eliminated, so that overall setting up has become
much easier.
• The motor can be exchanged easily.
<Upper shaft mechanism>
• Rotation of the motor 0 is transmitted directly to the upper shaft 8.
<Lower shaft mechanism>
• Timing pulley (U) 8 in the joint set transmits the rotation of the motor 0 to the timing pulley
(D) assembly 8 and the lower shaft 0 via the timing belt 8.
I,)
3From the library of: Superior Sewing Machine & Supply LLC
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Key Features
- Built-in motor
- Dry-head lubrication
- Thread trimmer
- Reduced noise
- Improved safety
- Difficult-to-sew materials
- Flexible speed control
- Lower thread detector
- Tension gauge (optional)
- Adjustable presser foot
Related manuals
Frequently Answers and Questions
What is the main advantage of the built-in motor?
The built-in motor eliminates the need for a V-belt, resulting in direct power transmission and reduced energy consumption.
How does the dry-head lubrication system work?
The oil is stored in a tank and delivered to the needle bar and thread take-up mechanism via a pump and wick system.
What are the benefits of the dry-head lubrication system?
It minimizes lubrication requirements, reduces oil staining, and provides easy oil level checking.
What type of materials can the DD7100 handle?
The DD7100 can handle a wide range of materials, including thin, difficult-to-sew materials and heavy fabrics.
How does the lower thread detector function?
It monitors the lower thread remaining and warns the user when it is depleted.
Can I adjust the presser foot pressure?
Yes, the presser foot pressure can be adjusted using the presser regulating screw.
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