Hydraulic Engineering Percussion Drilling Rig
Percussion drilling is a manual drilling technique in which a heavy cutting or hammering bit attached to a rope or cable is lowered in the open hole or inside a temporary casing. The technique is often also referred to as 'Cable tool'. Usually a tripod is used to support the tools. By moving the rope or cable up and down, the cutting or hammering bit loosens the soil or consolidated rock in the borehole, which is then extracted later by using a bailer. Just as with hand augering, a temporary casing of steel or plastic may be used to prevent the hole from collapsing. When the permanent well screen and casing are installed, this temporary casing has to be removed.
The percussion borehole drilling rig's technical advantages:
- Unlike any other drilling method, percussion can remove boulders and break harder formations, effectively and quickly through most types of earth. Hydraulic Engineering Percussion Rig,Big Cable Percussion Drilling Rig,Large Diameter Construction Percussion Rig Henan YK Prospecting Machinery Co., Ltd , https://www.yikyuirig.com
Printing logos are available. We supply free samples!
HY-S120 Non-asbestos sheet is made from synthetic fibre, Kevlar fiber, natural rubber, filling material and dye, compressed and calendered under high temperature and pressure into a sheet form.
Our Hysealing is a big munafacture of the sealing product  in china, our products export worldwide and our price is very good based on a good quality.Our sample is free for you.hope we will have a good cooperation in future.
Non-asbestos sheet is made from Kevlar fiber, NBR rubber, filling material and dye, compressed and calendered under high temperature and pressure into a sheet form.
Free samples are available.
Item
Style
S1202
 S1203
S1204
Density g/cm 3
1.8~2.0
1.8~2.0
1.8~2.0
Tensile strength ≥Mpa
6
9
13
Compressibility ≥%
12±5
12±5
12±5
Recovery ≥%
40
45
45
Aging coefficient
0.9
0.9
0.9
Stress relaxation ≤%
45
45
45
Steam Sealing
Tmax: 200 Â Pmax: 2~3Mpa 30min no shock
Tmax: 300 Â Pmax: 4~5Mpa 30min no shock
Tmax: 400 Â Pmax: 8~9Mpa 30min no shock
Tmax: Â Â
200
300
400
Pmax:Â Mpa
1.5
3.0
5.0
Resistance to media
Water, seawater, steam, fuel, gases, salt solutions and many other media.
- Percussion drilling can in principle deal with most ground conditions.
- Can drill hundreds of feet (one well hand-drilled in China in 1923 was over 4000 feet deep).
- Can drill further into the water table than dug wells, even drilling past one water table to reach another.
No Asbestos Gasket Sheet with Best Price for Pump
Model NO.: HY-S120
Type: HNBR
Balance: Balanced
Thickness: 0.8mm~5.0mm
Size: 2000X1500mm,1500X1500mm,1500X1000mm
Temp,: 200-400c
Density: 1.8-2.0g/cm3
Trademark: Hysealing
Transport Package: Pallet
Specification: SGS
Origin: Cixi Ningbo
HS Code: 40082100
With rich experience in producing and exporting for many years,we have many customers in Canada,USA,South America purchasing oil-resisting non-asbestos sheet from us. Normal colour: green, black, white, blue, red etc.
Available with tin steel, copper, SS304 etc. wire mesh insertion
Also available with anti-stickor graphite coating
With your logo on request.
Â
DIMENSIONS:Â Â Â Â Â
Thickness:Â 0.4~6mm
2000×1500mm; 1500×4000mm;1500×1500mm;
1500×1000mm;1270×1270mm; 3810×1270mm
We mainly export Non-asbestos sheets to Canada,USA,and some South America countries,such as Argentina and Colombia. They are satisfied with the quality based on reasonable price.