Tunneling jumbos refer to rigs used for underground excavation projects such as underground mine tunnels, railway and highway tunnels, and hydraulic culverts. It can also be used for drilling bolt holes, filling method or room and pillar mining blasthole. The hole diameter is 25-64mm, and the hole depth is 1-5.5m, often 2.5-4m. It is suitable for the tunnel section of 3.2-150m2. The selection of the tunneling rig is mainly based on the roadway section and the driving speed, and at the same time, factors such as the turning radius of the roadway and the support method must be considered.
Tunneling Jumbo,Tunnel Drilling Jumbo,Crawler Tunneling Jumbo,Double Arm Tunneling Jumbo NORTH HEAVY GRYPS EQUIPMENT AND ENGINEERING CO.,LTD , https://www.nhgtunnel.com
Specifications:
Power voltage: 9V standard or rechargeable battery
Power: 270mW
Operating frequency: 22kHz
Operating current: <50mA
Operating voltage:7V-9V
Operating temperature: -10°C to +65°C
Net weight: 409g
Dimensions: 41(L) X 8.5(W) X 4.5(H)cm
User;s attention:
* Turn the power switch to turn on, while the green light. If there is no tone indicates no battery or the battery connection is bad, such as the non-stop sound, indicating that the battery should be renewed
* Sensitivity adjustment: with a small screwdriver inserted into the hole on the handle to rotate clockwise to adjust the sound, then counterclockwise
* Rotation was adjusted to not sound, then counterclockwise half turn, to meet the requirements of sensitivity
* Alarm: sound and light, vibration  Â
* Package : 1 piece metal detector (not including batteries)
Application:
  *Airports, stations, terminals, electronic detection examination room examination
  *Customs, frontier defense, defense department security checks
  *Medicine, food quality inspection business systems
  *The important places, such as playground safety inspection
  *The noble metal detection, such as gold and silver jewelry factory
The MD-3003B1 is a high performance handheld metal detector designed to meet the exact requirements of the security industry. Typical uses will include body search for offensive weapons in crowd control, airport and border security, checking parcels and letters for metal objects and anywhere that hidden metal needs to be detected
Specifications:
Power voltage: 9V standard or rechargeable battery
Power: 270mW
Operating frequency: 22kHz
Operating current: <50mA
Operating voltage:7V-9V
Operating temperature: -10°C to +65°C
Net weight: 409g
Dimensions: 41(L) X 8.5(W) X 4.5(H)cm
User;s attention:
* Turn the power switch to turn on, while the green light. If there is no tone indicates no battery or the battery connection is bad, such as the non-stop sound, indicating that the battery should be renewed
* Sensitivity adjustment: with a small screwdriver inserted into the hole on the handle to rotate clockwise to adjust the sound, then counterclockwise
* Rotation was adjusted to not sound, then counterclockwise half turn, to meet the requirements of sensitivity
* Alarm: sound and light, vibration  Â
* Package : 1 piece metal detector (not including batteries)
Application:
  *Airports, stations, terminals, electronic detection examination room examination
  *Customs, frontier defense, defense department security checks
  *Medicine, food quality inspection business systems
  *The important places, such as playground safety inspection
  *The noble metal detection, such as gold and silver jewelry factory
Origin: China
HS Code: 8543709100
Origin: China
HS Code: 8543709100
The MD-3003B1 is a high performance handheld metal detector designed to meet the exact requirements of the security industry. Typical uses will include body search for offensive weapons in crowd control, airport and border security, checking parcels and letters for metal objects and anywhere that hidden metal needs to be detected