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38341-29735, 38341-29790
faermak@mail.ru

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Bottomhole hydraulic props of GVKU and GKU types

Our company supplies GVKUand GKU bottomhole hydraulic props

1. Product purpose 

1.1. Ст GKU and GVKU coalface support props of reinforced series are designed to support the stall of mine rooms in seams with inclination of 35 degrees and extracting thickness of 1,82-3,41m.

1.2. Two types of props are manufactured: GVKU - with external power supply and GKU - individual of five standard sizes (13GKU30 - 17GKU30 and 13GVKU30 - 17GVKU30), differ in height of cylinder and shaft with a nominal yielding load of 300 kN.

2. Mining conditions of product 

2.1. Prop can be applied in mines with a category for methane hazard including extreme explosion hazard level mine, with secure and mid-secure rock of immediate mine roof, including the insecure rock (with application of back lath), with a relative humidity of mine air up to 100%.

2.2. The prop can be used in any mining method that enables application of fully-mechanized shearer mining, ploughing or other winning machines and at any roof control method that involves withdrawing of support from face caving.  

2.3. In some cases, the prop can be used to support insecure rocks. In this case, it is necessary to use a special enlarged props, and with a weak top to make a back lathing.

2.4. The most efficiently prop can be used with:

1) steel girders in combination with shortwall mining machine and snaking conveyers; 

2) in combination with waste-edge chock of fixed resistance.

2.5. The scheme of face support and the roof control method must prevent the hard blows of rockfall that are perpendicular to the axis of prop.

2.6. It is not recommended to apply the prop in the coalfaces with            hydraulic winning and hydraulic filling.

2.7. Only non-flammable liquids and mixtures must be used as a hydraulic fluid in the props.

 3. Specifications 

Parameter

13 to 17 standard sizes rate

Nominal operational resistance kH

300

Initial setting load at fluid pressure in the main pipe of       20 MPa, kN 

127 (engineered value)

Nominal fluid working pressure in prop, MPa  

47,5

Specific floor pressure at nominal yield load, MPa, at most

18 (engineered value)

Prop's shaft lifting velocity mm/s, not less than

20

Telescoping support lowering velocity at discharge with smallest cap and steel roof bar at pitch angle of 35 degrees of vertical position, mm/s, at least

5

4. Parameters of the props and its application limit in relation to seam thickness

Type

Height of prop with caps, mm closed
open

Application limit in relation to seam thickness, m bottom top

Closed height of prop without caps, mm

Working fluid volume required for full expansion, cm3

Weight of prop with smallest cap without working fluid, kg

13 (GKU, GVKU)30

1400  2000

2060

2100

1560    2160

1,82        2,10

1,90        2,16

1,95        2,20

2,02        2,26

1360

3900

50,9

53,9

55,2

57,8

14(GKU, GVKU)30

 2240

2300

2340

1760    2400

2,07        2,34

2,14        2,40

2,19        2,44

2,26        2,50

1560

4100

55,3

58,4

59,6

62,2

15(GKU, GVKU)30

2500

2560

2600

1960   2660

 

2,31        2,60

2,37        2,66

2,43        2,70

2,50        2,76

1760

4500

60,5

63,6

64,8

67,4

16(GKU, GVKU)30

2800

2860

2900

2160     2960

2,55        2,90

2,62        2,96

2,67        3,00

2,74        3,06

1960

5100

64,7

67,7

69,0

71,6

17(GKU, GVKU)30

3040

3100

3140

3200

2490       3290

2,84    3,14

2,91    3,20

2,96    3,24

3,03    3,30

3,14    3,41

2200

5100

70,0

73,0

74,2

76,2

80,8

 5. Interchangeable bottom caps specifications

Name

Type

Operation height, mm, at least

Weight, kg, at most

Bottom cap

GVKU30.070

60

6,10

The same

- 01

60

6,10

The same

GVKU30.002

100

4,26

The same

- 01

160

6,86

The same

- 02

250

10,8

The same

- 03 

100

4,26

The same

-04

160

6,86

The same

- 05 

250

10,8

 

     6.  Specified products can be purchased from us at the following prices

#

Model

Unit

Price in Novosibirsk

(rub.)

Hydraulic props

1

13 GVKU30

pcs

upon request

2

14 GVKU 30

pcs

upon request

3

15 GVKU 30

pcs

upon request

4

16 GVKU 30

pcs

upon request

5

17 GVKU 30

pcs

upon request

6

13 GKU  30

pcs

upon request

7

14 GKU 30

pcs

upon request

8

15 GKU 30

pcs

upon request

9

16 GKU 30

pcs

upon request

10

17 GKU 30

pcs

upon request

 

550363003_7

 

1939167401_7

 

 Our coordinates:

Company: Representative office of "Mashzavod #1" OJSC

Address: 11/2, Popova str., Novosibirsk region, Berdsk city, 633011
Telephones: 8-38341-29790,29735 (383)212 59 78
Contact person: Mikhail Borisovich Fayermak, Grigoriy Mikhaylovich Fayermak
E-mail: faermak@mail.ru

             gfaermak@mail.ru