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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.)

Thread nipper device set

(SA7931-001)
Thread cast-off at sewing start 
can be prevented, providing 
fine finish with quality stitches.

(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.

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.

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.

Exchange parts set (For circular stitching buttonhole)

(For -00 spec. SA7804-001)
(For -01 spec. SA7808-001)

Treadle unit*

2

(SA6567-101)

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*

2

(S42838-301)

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*

2

(SA7121-001)

The operations of work clamp 
lowering and machine start can 
separately be made by hand-
operated switching. It is useful 
for standing operation. 

*

1

 For details, please consult your place of purchase.

*

2

The standard switch is different according to the destination.)

-00

-01

Eyelet buttonhole

8-50mm

8-42mm

Straight buttonhole

5-44mm

5-36mm

Gauge parts set (For -02 spec.)*

1

L1422

L1826

L2230

L2634

L3442

Sewing length

14-22mm

18-26mm

22-30mm

26-34mm

34-42mm

Part code

SA7750-001

SA7771-001

SA7752-001

SA7756-001

SA7764-001

Replacement parts set (For -01, -02 spec.)*

1

-01      -02

-02      -01

Part code

SA7773-001

SA7784-001

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.

Buttonhole

spacing

No. of buttonholes

Vertical sewing 

margin

Horizontal sewing margin

Max. overall feed amount

Standard size

38.1 mm, 50.8 mm, 

44.45 mm

2-4

Large size

38.1 mm, 50.8 mm, 

44.45 mm, 57.15 mm

2-6

152.4mm

285.75mm

L1422, L1826, L2230: 8-23 mm

L2634, L3442: 0-11 mm

31.5-41.5mm

Distance

between buttonholes

No. of buttonholes

Horizontal feed amount

Vertical

sewing margin

Horizontal
sewing margin

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

Thread breakage detector

(SA8077-001)
The sensor of the device de-
tects upper thread breakage.

Summary of Contents for RH-9820

Page 1: ...ting in 13 reduction of the machine time compared with the conventional model Enhanced productivity with the world s highest max sewing speed 2 500 rpm Fine stitches with high precision stitch point Large arm pocket allowing smooth material handling Easy to use operation panel The further improved reliable sewing mechanism is optimally controlled by the most advanced electronic technology Producti...

Page 2: ...itch point has been improved With the highly rigid feed mechanism with servo control stitch point is very precise and feed drifting which is specific to electronic sewing machines does not occur even in high speed sewing of weighty mate rials The servo control also makes home position de tection unnecessary Skipped stitches are reduced The shape of the looper the thread take up amount and some oth...

Page 3: ... operate intuitively without the instruction manual Production counter The number of buttonholes sewn can be counted up to 999 999 Sewing length ranges in 02 spec are increased In 02 spec the range of sewing length with each gauge has been increased to 8 mm The wider gauge ranges reduce the trouble of gauge replacement Change of the ranges L1422 L3442 is available by replacing gauge parts For deta...

Page 4: ... adjustment without steps making the operation easier Durability of the machine has been improved The rigidity of the machine arm has been enhanced Nicking of the knife is substantially reduced by minimizing lateral movement of the hammer against the knife Easy maintenance Daily cleaning and lubrication can efficiently be done in a shorter time Centralized lubrication system Eyelet cloth chips can...

Page 5: ...belt requiring high productivity Please use a treadle and a connecting rod on the market Two pedal foot switch 2 S42838 301 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 2 SA7121 001 The operations of work clamp lowering and mach...

Page 6: ...Main regulator 0 5 Mpa Hammer pressure regulator 0 4 MPa 43 2 l min 8 cycles min Machine head Approx 120 kg Operation panel Approx 0 6 kg Control box 14 2 16 2 kg depending on the destination Single phase 100V 200V 3 phase 200V 220V 380V 400V 400VA DOx558 Nm100 DOx558 Nm90 DOx558 Nm110 16mm 3mm 2 5mm 30mm 22mm 30mm 12 mm as standard Available up to 16 mm Specifications Thread trimmer Main applicat...

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