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Testimonials

Sumit Malhotra

Great Company & Excellent owner ! Good luck for all future endeavours.

Sharma Kumkum

Ramana International is the best place to buy embroidery machines. Their products are of the highest quality, and their customer service is fantastic. I would highly recommend them to anyone in the textile industry.

Devendra Sharma

Very excellent service and educated staff 👍 I would refer all everyone must buy all knitting and weaving and automatic cutting machine and spreading Machine and sewing & perforation, (3in1), etc machine from Ramana Machine

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1 1

1SJBF Series Multi-Station Cold Heading Bolt Forming Machine
  • Vendor:

    Ramana Machines

Description

MAIN FEATURES

1.      Robust Construction:
The body frame, main ram, and main link lever are crafted from high-strength materials and undergo rigorous casting processes, including stress-relief treatments. This ensures durability, prevents deformation, and maintains machine precision over long periods.

2.      Wear-Resistant Components:
Both the main and auxiliary rams are made from abrasion-resistant alloy, with the inner plates of the main ram constructed from quenched alloy steel. This design enhances precision and stability while prolonging the die's lifespan.

3.      Versatile Operation Modes:
Equipped with a low-current air clutch, the machine offers three operational modes: inching, single stroke, and continuous running. In single stroke and continuous running modes, the main ram halts automatically at its rear position to protect the die and maximize workspace for operation and adjustments.

4.      Efficient Pressing and Feeding:
The pressing and wire feeding mechanisms are powered by an air cylinder-controlled pawl, while the wire cutting operates through a robust link block system. Circular shears ensure precise and clean kerf cuts, enhancing reliability and stability.

5.      Precision Sliding Block Design:
The high-precision main sliding block features a rear wing connection for stability and accuracy. Super-durable copper plates are inserted into the bottom surfaces of the front and rear wings to improve precision and extend service life.

6.      Adjustable Rear Knockout Device:
Each station of the rear knockout device is individually adjustable, with the final station capable of ejecting the trimmed product by repositioning or replacing the cam as needed.

7.      Synchronized Front Knockout Mechanism:
The front knockout mechanism moves in tandem with the main ram's retreat motion, allowing the product to remain temporarily on the mold plunger. This prevents damage by ensuring the plunger is not dragged away with the product.

8.      Reliable Gripper Movement:
The gripper's swing is driven by a conjugate cam, ensuring consistent and reliable movement, even during high-speed return operations.

9.      High-Precision Manufacturing:
All key components, including cams, are produced using numerically controlled machining tools, ensuring precision, smooth curves, and seamless sliding motion.

10.   User-Friendly Operating System:
The operating system is simple and intuitive, integrating a PLC to automatically monitor the machine's working modes. It provides fault alarms as needed, ensuring efficiency and ease of use.

1SJBF Series Screw Forming Machine
2SJBF Series Three-Die Three-Punch Screw Forming Machine
2SJBF Series Four-Die Four-Punch Screw Forming Machine

·        The maximum material shearing diameter and product size, as listed in the table, are calculated based on medium carbon alloy steel.

·        The most suitable production speed for products depends on their shape, size, and material.

 

                                                                        Model

Specifications

SJBF43S

SJBF63S

SJBF83S

SJBF103S

SJBF103SL

SJBF133S

SJBF133SL

SJBF163S

SJBF163SL

SJBF203S

SJBF203SL

SJBF203SLL

SJBF243S

SJBF243SL

SJBF273S

SJBF303S

Forging station

4

Cut-off Dia max.

(mm)

5

8

10

12

15

18

23

29

34

38

Cut-off length max.

(mm)

55

105

130

180

230

185

240

270

400

270

400

445

290

370

400

450

Kick-out length max.

(mm)

45

90

120

175

225

180

225

230

335

230

335

370

235

340

340

390

P. K. O. length max.

(mm)

10

13

23

30

36

30

35

36

60

35

60

70

35

60

60

70

Cut-off quill ( D x L)

(mm)

20x30

28x46

38x79

40x80

40x80

46x80

60x100

60x120

60x120

75x120

90x140

110x140

115x140

Main die hole ( D x L)

(mm)

38x60

50x65

70x135

80x135

80x240

93x190

93x240

100x240

100x360

125x240

125x360

125x420

160x250

160x370

178x385

195x420

Die Pitch

(mm)

48

60

90

90

114

126

138

174

195

210

Punch hole ( D x L )

(mm)

32x60

40x110

45x111

50x130

50x190

60x170

60x200

75x200

75x232

90x190

90x240

90x290

105x200

105x232

120x250

135x280

Ram stroke

(mm)

100

150

200

250

360

270

360

360

500

360

500

580

360

500

500

580

Forging power

(ton)

15

30

50

70

90

90

100

200

215

265

300

320

360

420

550

620

 

Size

M4

M6

M8

M10

M12

M16

M20

M24

M27

M30

Products

Max. length (mm)

40

90

90

150

200

150

200

200

300

200

305

360

200

300

300

355

Products

Min. length (mm)

10

12

20

30

50

40

50

50

100

40

100

100

60

100

100

100

Max. output (pcs/mintue)

250

180

140

100

75

90

70

90

60

70

55

40

50

35

35

35

Main motor

(mm)

5.5

11

18.5

22

30

30

37

45

55

75

75

75

90

90

110

150

Approx. WT .

(mm)

3.5

7

11

14

20

23

27

42

50

57

72

82

78

120

124

150

 

 

                                                                                                                                                      Model

Specifications

SJBF44S

SJBF64S

SJBF84S

SJBF104S

SJBF104SL

SJBF134S

SJBF134SL

SJBF164S

SJBF164SL

SJBF204S

SJBF204SL

SJBF204SLL

SJBF244S

SJBF244SL

SJBF274S

SJBF304S

Forging station

4

Cut-off Dia max.                                 (mm)

5

8

10

12

15

18

23

29

34

38

Cut-off length max.                                 (mm)

55

105

130

180

230

185

240

270

400

270

400

445

290

370

400

450

Kick-out length max. (mm)

45

90

120

175

225

180

225

230

335

230

335

370

235

340

340

390

P. K. O. length max.                                 (mm)

10

13

23

30

36

30

35

36

60

35

60

70

35

60

60

70

Cut-off quill ( D x L)                                 (mm)

20x30

28x46

38x79

40x80

40x80

46x80

60x100

60x100

60x120

75x120

90x140

110x140

115x140

Main die hole ( D x L) (mm)

38x60

50x65

70x135

80x185

80x240

93x190

93x240

100x240

100x360

125x240

125x360

125x420

160x250

160x370

178x385

195x420

Die Pitch                                 (mm)

48

60

90

90

114

126

138

174

195

210

Punch hole ( D x L )                                 (mm)

32x60

40x110

45x111

50x130

50x190

60x170

60x200

75x200

75x232

90x190

90x240

90x290

105x200

105x232

120x250

135x280

Ram stroke                                 (mm)

100

150

200

250

360

270

360

360

500

360

500

580

360

500

500

580

Forging power                                 (ton)

20

40

65

85

90

90

100

200

215

265

300

320

360

420

550

620

 

Size

M4

M6

M8

M10

M12

M16

M20

M24

M27

M30

Products

Max. length (mm)

40

90

90

150

200

150

200

200

300

200

305

360

200

300

300

355

Products

Min. length (mm)

10

12

20

30

50

40

50

50

100

40

100

100

60

100

100

100

Max. output (pcs/mintue)

210

180

130

100

75

90

70

90

60

70

55

40

50

35

35

35

Main motor                                 (kw)

7.5

11

22

30

37

37

37

55

75

75

90

90

110

110

125

150

Approx. WT .                                 (ton)

4

10

14

16

24

25

30

45

58

65

90

98

89

120

145

180

 

 

                   Model

Specifications

SJBF42S

SJBF62S

SJBF82SL

SJBF102SL

SJBF132SL

Forging station

2

2

2

2

2

Cut-off Dia max.            (mm)

5

8

10

12

15

Cut-off length max.      (mm)

55

95

130

180

185

Kick-out length max. (mm)

45

85

120

175

180

P. K. O. length max.      (mm)

10

15

23

30

30

Cut-off quill ( D x L)      (mm)

I 20*30L

I 28*46L

I 38*59L

I 40*66L

I 46*80L

Main die hole ( D x L) (mm)

I 38*60L

I 50*100L

I 70*135L

I 80*185L

I 93*190L

Die Pitch                        (mm)

48

60

87

93

114

Punch hole ( D x L )      (mm)

I 38*60L

I 40*90L

I 45*111L

I 50*130L

I 60*170L

Ram stroke                    (mm)

100

150

200

250

270

Forging power              (ton)

12

25

45

55

70

 

Size

M4

M6

M8

M10

M12

Products

Max. length (mm)

40

75

100

150

150

Products

Min. length (mm)

10

15

20

30

40

Max. output (pcs/mintue)

280

200

180

160

120

Main motor                      (kw)

5.5

7.5

11

15

22

Approx. WT .                    (ton)

3

5

9

13

18