Percussion drilling is employed when auger or wash boring is not possible in very stiff soil or rock. It also can be used in most soil types.
Here the advancement of a hole is achieved by alternatively lifting and dropping a heavy cutting or hammering bit that is attached to a rope or cable that is lowered into an open hole or inside a temporary casing (casings are hollow cylindrical pipes used for borehole stability and to prevent the loss of drilling fluid through the boreholes).
Usually a tripod is used to support the cable. The stroke of bit varies according to the ground condition. The major disadvantage of this method is that it is not possible to get good-quality undisturbed samples. In very hard rock (and especially fractured hard rock), down-the-hole (DTH) drilling can be employed. In this case the hammer, applying repeated percussive pressure, is located just behind the drill bit inside the hole, unlike the open percussion drilling, where the hammer is on top of the drilling string.
The drilling string provides the necessary force and rotation to the hammer and bit, as well as compressed air or fluids to the hammer and for the flushing of cuttings.
This arrangement also allows for much deeper percussion drilling. However, the DTH drills are typically more expensive.
Percussion Drilling Rig,Cable Percussion Drilling,Percussion Drilling Equipment,Deep Foundation Engineering Percussion Rig Henan YK Prospecting Machinery Co., Ltd , https://www.yikyuirig.com
1 Set Manual Un-coiler
1 Set Roll Forming Machine
1 Set Hydraulic Cutting
1 Set Hydraulic Station
1 Set Control Box
3 Pieces Run-out Table   Â
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Technical Parameters
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Simple Decoiler (Quantity: 1)
Loading Weight: 5T
Expansion: Manual
Steel Coil Inner Diameter: 508-610mm
Steel Coil Outer Diameter: Max 1500mm
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Forming Station (Quantity: 1)
Main Structure of the Machine: 36# "H" beam steel foundation, wall plate structure
Rolling Stations:24 stations (subjected to final design)
Forming Speed: Approx. 8-12m/min.
Diameter of Shaft: 90mm
Material of Shaft: 45# steel with heat treatment and high-frequency quenched HRC60-62
Material of Roller: 45# steel with quenching treatment and chroming to 0.05mm thickness
Main bearing: 6212
Machine Side-Wall :Archway stand
Transmission: Chains-bracket
Motor Power: 22KW (subjected to final design)
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Post-Cutting (Quantity: 1)
Material of Cutting Mold: Cr12 Steel with quenched treatment HRC 60-62
Cutting Length and Quantity: Clients can set the required length and quantity on the PLC touch screen
Tolerance of Cutting Length: +/-2mm
Hydraulic Pump Power: 7.5KW (subjected to final design)
Pressure of Hydraulic Station: >=16Mpa
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Length x Width x Height: Â Â Â Â Â Â Â Â Â Â 2.0m x 0.6m x 0.9m
Supporter Roller: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ASTM 1045 with Chrome
Dia. of Rollers: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 55mm
Color: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â blue (or based on customer's request)
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Control System (Quantity: 1)
PLC Control Box: 500mmx300mmx700mm
Computer Control System: Panasonic PLC
Encoder: Omron Brand
Voltage: 380V, 50Hz, 3 phase
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Process Of The Production Line
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Decoiling-Feeding Guide-Roll Forming-Hydraulic Cutting-Run Out To Table
Packing:
1. One 40' container for loading one set of machine with mechanical decoiler.Â
2. Main machine body and decoiler is load naked (tighten to container with steel wire rope).Â
3. Spare parts and operating tools are loading in tooling box.
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Why us?
1. Â Manufacturing roll forming machine since 2009
2. Â With ISO,SGS,BV and CE certificate
3. Â 1 year quality warranty
4. Â Introduced Mitsubishi PLC with touch screen. Friendly man-machine interaction.
5. Â Technician can be sent to your factory to install the machine and train your workers
6. Â Export to more than 20 countries.Â
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We customize your machines! To customize machine, we would want to know:
1. Profile drawing
2. Raw material: the width(1000mm-1250mm?), thickness(0.8mm-1.5mm?), and yield strength of steel coil.
3. Voltage: designed per your requirement
4. Configuration requirement: Hydraulic or manual decoiler/ stacker
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Have no idea about them?Â
We will be glad to recommend the lacol popular profile for you----Just let us know your country!
Please feel free to contact us for more information!
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Model NO.: YX53-200-600
Main Motor: 22kw
Shafts for Rollers: 90mm Diameter Solid
Control System: Mitsubishi/Seimens PLC & Converter
Trademark: naxuan
Transport Package: Packed in Container
Specification: 15000*1200*1500
Origin: China
HS Code: 8455229090
Composition of the machine