Brother RH-9820 Brochure & Specs page 5

Environment-conscious
Brother has established our original "Brother Green Label" for the
products in conformity with ISO 14021 and JIS Q14021. The RH-9820
is certified as an environment-conscious sewing machine according to
"Brother Green Label" standard, such as "Reduction of power
consumption by 35% and above", "Reduction of noise by 3 dB and
above" and "Use of lead-free solder for all PC boards".
*
Comparison with the conventional model RH-981A
Options
Lapel device (For -00, -01 spec.)
(SA8078-001)
With this device, eyelet button-
holes and straight buttonholes
can be sewn without replacing
the knife and hammer. It is suit-
able for cycle sewing of eyelet
buttonholes and a lapel button-
hole for men's jackets.
Eyelet buttonhole
-00 8-50mm
-01 8-42mm
Fly indexer (For -02 spec.)
(Standard size SA8079-001)
(Large size SA8080-001)
The number of buttonholes can
be set and the fly can be fed
automatically. This device pro-
vides speedy sewing of fly
buttonholes.
Standard size
Buttonhole 38.1 mm, 50.8 mm,
spacing 44.45 mm
No. of buttonholes 2-4
Vertical sewing L1422, L1826, L2230: 8-23 mm
margin L2634, L3442: 0-11 mm
Horizontal sewing margin
Max. overall feed amount 152.4mm
When sewing with buttonhole spacing out of the given values, please modify the cloth
feed bar F assembly (option) for use. The number of buttonholes 2 to 9 is possible.
Distance
between buttonholes
No. of buttonholes
Horizontal feed amount
Gauge parts set (For -02 spec.) *
Sewing length
L1422 14-22mm
L1826 18-26mm
L2230 22-30mm
L2634 26-34mm
L3442 34-42mm
Replacement parts set (For -01, -02 spec.) *
-01 -02
-02 -01
1
* For details, please consult your place of purchase.
* 2 The standard switch is different according to the destination.)
Straight buttonhole
5-44mm
5-36mm
Large size
38.1 mm, 50.8 mm,
44.45 mm, 57.15 mm
2-6
31.5-41.5mm
285.75mm
Vertical
sewing margin
Horizontal
sewing margin
1
Part code
SA7750-001
SA7771-001
SA7752-001
SA7756-001
SA7764-001
1
Part code
SA7773-001
SA7784-001
Thread nipper device set
(SA7931-001)
Thread cast-off at sewing start
can be prevented, providing
fine finish with quality stitches.
Thread breakage detector
(SA8077-001)
The sensor of the device de-
tects upper thread breakage.
Waist belt presser
(For L26 spec. SA7777-001) (For L30 spec. SA7781-001)
When sewing a waist-belt part having different thicknesses,
these work clamps securely holds the article according to its
thicknesses. Flopping of the cloth can be prevented.
Treadle unit *
(SA6567-101)
2
The operations of work clamp
lowering and machine start can
be made with a treadle. The
speedy operation is suitable for
buttonhole sewing of waist belt
requiring high productivity.
Please use a treadle and a connecting
rod on the market.
Two-pedal foot switch *
(S42838-301)
2
The operations of work clamp
lowering and machine start can
separately be made by foot-
operated switching. It is suit-
able for buttonhole sewing of
hip pockets requiring accurate
material positioning.
Hand start switch *
(SA7121-001)
2
The operations of work clamp
lowering and machine start can
separately be made by hand-
operated switching. It is useful
for standing operation.
Exchange parts set (For circular stitching buttonhole)
(For -00 spec. SA7804-001)
(For -01 spec. SA7808-001)
Industry's top energy saving with the
direct drive system
Use of lead-free solder in all PCB
Significant extension of the hook's lifetime