Detailed Product Description

1.  Application

YGS-120  anchor  engineering  drilling  rig  is  a  full hydraulic  operated  dual-top  drive  power  head drilling  machine.  It  is  widely  used  to  drill  large

pretension  anchor  wire  holes,  large  diameter  anchor pile  holes  and  grouting  holes  at  the  side  slope  of water  power  station,  expressway  or  railway  projects, as  well  as  small  size  foundation  pile  holes  etc.

2.  Features

1)  Dual-top  drive  power  head  realizes  various  drilling  methods,  such  as:

a)  When  drilling  a  hole  in  thicker  (3050  m)  fractured  zone  or  congeries,  rear  power  head  connected with  the  inner  drilling  tool  and  DTH  hammer,  to  realize  percussion  rotary  drilling,  in  the  meanwhile, the  front  power  head  rotates  the  follow-up  casing  for  protecting  the  hole  wall.

b)  When  drilling  a  hole  in  incoherent  overlying  formation,  quicksand  layer  or  silt  layer,  the  inner drilling  tool  use  conventionally  rotary  tools  or  long  auger  drilling  tools,  in  the  meanwhile,  the  front power  head  rotates  the  follow-up  casing  for  protecting  hole  wall.

c)  When  drilling  a  hole  in  intact  formation,  only  one  power  head  is  used  for  ordinary  rotary  drilling

or  percussion-rotary  drilling.

2)  It  features  high  lift  capacity  and  output  torque,  strong  solving  accident  ability  and  high  drilling efficiency.

3)  It  carries  out  mechanization  of  rod  and  casing  breaking  down,  as  it  equipped  with  the  clamp  and breakout  machine,  so  it  can  significantly  reduce  labor  strength  and  increase  work  efficiency.

4)  Building  block  and  combined  structure  design  as  well  as  twin  hydraulic  pumps  system  are  adopted  in the  machine,  so  it  features  good  disassembility  ,  convenient  mounting  and  dismounting,  and  especially suitable  for  working  in  the  inconvenient  traffic  mountain  areas..

3.  Specifications

1)  Hole  diameter  ÿ130-250  mm

2)  Hole  depth  120-80  m

3)  Hole  angle  range

Type  YGS-120  -10°  45° Type  YGS-120A  -10°  90°

4)  Output  speed  of  top  drive  power  head

Rear  head  3-130  r/min

Front  head  3-22  r/min

5)  Output  torque  of  top  drive  power  head

Rear  head  3500  Nm

Front  head  10000  Nm

6)  Mast  length  3500  mm

Feeding  stroke  of  top  drive  power  head  1300  mm

Mast  slide  stroke  600  mm

Compensatory  stroke  of  front  head  400  mm

7)  Recommend  rod  size  (diameter×length)  ÿ89×1000  mm  ÿ114×1000  mm

Recommend  casing  size  (diameter×length)  ÿ168×1000  mm  ÿ178×1000  mm  ÿ194×1000  mm

8)  Maximum  lifting  capacity  of  top  drive  power  head  100  kN Maximum  thrust  force  of  top  drive  power  head  52  kN

9)  Break-out  toque  of  casing  15  kNm

10)  Motor

Type  Y180L-4×2

Power  44  kW

11)  Rated  pressure  of  hydraulic  system  18MPa

12)  Weight  2500  kg

Weight  of  the  heaviest  component  400  kg

13)  Overall  dimension  of  main  set

Length×Width×Height  3500×1200×1600  mm