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Single Hydraulic Prop

 

DN Prop Series

 The series of DN inner-injected single hydraulic prop can be used for supporting the roof of mining coal face independently or associated with metal articulated roof beam. It is suitable for gently inclined seam with a gradient less than 25°. If safety measures are taken, it is also for coal face with gradient up to 25-35°. Besides, it can be used as an end support in a fully mechanized mining coal face.

Features:

1. Light weight, high loading capacity;

2. Quick setting, convenient recovering;

3. Reliable sealing;

4. Emulsion supply from power pack and hose system is eliminated, so no draining emulsions while lowering. It keeps a clean environment;

5. Easy operation and convenient management. 

 

 

  Model

 

Max.H
(mm)

 

Max.H
(mm)

 

Stroke
(mm)

 

Working Resistance
(kN)

 

Rated Oil Pressure
(MPa)

 

Oil Cylinder Dia.
(mm)

 

Area Offoot Plate
(mm2)

 

Working Liquid

 

Weight
(Kg)

DN31-160/90

3150

2450

700

160

25

90

120

5# Hydraulic oil

 

78

DN28-200/90

2800

2100

700

200

31

90

120

74

DN25-250/90

2500

1800

700

245

39

90

120

68

DN22-300/90

2240

1540

700

294

46.3

90

120

60

DN20-300/90

2000

1360

640

294

46.3

90

120

55

DN18-250/80

1800

1250

550

245

49

80

120

45

DN16-250/80

1600

1100

500

245

49

80

120

41

DN14-250/80

1400

1000

400

245

49

80

120

38

DN12-250/80

1200

870

330

245

49

80

120

34

DN10-25/80

1000

720

280

245

49

80

120

29

DN08-250/80

800

590

210

245

49

80

120

26

DN06-25/80

650

510

140

245

49

80

120

23

 

DW Prop Series

The series of DW outer-injected single hydraulic prop can be used for supporting the roof of mining coal face independently or associated with metal articulated roof beam. It is suitable for gently inclined seam with a gradient less than 25°. If safety measures are taken, it is also for coal face with gradient up to 25-35°. Besides, it can be used as an end support in a fully mechanized mining coal face.

Features:

The holding power is great and well distributed, it’s convenient and safety operate.

 

 

Model

 

Max.H
(mm)

 

Min.H
(mm)

 

Stroke
(mm)

 

Working Resistance
(kN)

 

Rated Oil Pressure
(MPa)

 

Oil Cylinder Dia.
(mm)

 

Area Offoot

plate
(mm2)

 

Working

liquid

 

Weight
(Kg)

DW25-400/110

2500

1700

800

400

42.1

110

172

 

 

 

 

 

 

 

M10 or MTD Emulsion including 1-2% emulsifier

 

79

DW22-400/110

2240

1440

800

400

42.1

110

172

73

DW20-400/110

2000

1240

760

400

42.1

110

172

66

DW18-400/110

1800

1110

690

400

42.1

110

172

62

DW16-400/110

1600

1005

595

400

42.1

110

172

59

DW14-400/110

1400

900

500

400

42.1

110

172

54

DW12-400/110

1200

792

408

400

42.1

110

172

50

DW10-400/110

1000

685

315

400

42.1

110

172

47

DW08-400/110

800

578

222

400

42.1

110

172

40

DW06-400/110

630

485

145

400

42.1

110

172

38

DW35-150/100

3500

2700

800

150

19.1

100

113

82.8

DW31-200/100

3150

2350

800

200

25.5

100

113

76.4

DW28-250/100

2800

2000

800

250

31.8

100

113

70

DW25-250/100

2500

1700

800

250

31.8

100

113

58

DW22-300/100

2240

1440

800

300

38.2

100

113

55

DW20-300/100

2000

1240

760

300

38.2

100

113

48

DW18-300/100

1800

1110

690

300

38.2

100

113

47

DW16-300/100

1600

1005

595

300

38.2

100

113

43.5

DW14-300/100

1400

900

500

300

38.2

100

113

40

DW12-300/100

1200

792

408

300

38.2

100

113

36.3

DW10-300/100

1000

685

315

300

38.2

100

113

32

DW08-300/100

800

578

222

300

38.2

100

113

26.2

DW06-300/100

630

485

145

300

38.2

100

113

25.1

 

 

 


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