1. It is possible to dig into a narrow part with a minimum of 12 cm and use the water jet method WJ (R) to lift the concrete in the narrow part at the end of the bridge superstructure.
2. The XY 2-axis type fishing device for narrow parts makes the best use of the water jet method, and can selectively remove fragile parts of concrete (selectivity) and secure flatness.
3. Does not generate harmful microcracks or damage internal reinforcing bars due to adhesion of cross-section repair material, etc.

1. 狭小部用湿式吹付けノズルは、最小で10cmの狭小部にもぐり込み、ノズル角度を可変調整しポリマーセメントモルタルを吹付けることができ、より精度の高い吹付け工法で断面修復を可能にしました。
2. The wet spraying method using polymer cement mortar has excellent adhesion to the chipping surface of the water jet method WJ (R).

1. XY 2-axis type chipping device for narrow parts

Pressure Max250MPa
Water volume Max 90ℓ/min
Swivel drive system Hydraulic motor rotation 1 hole type
Nozzle jet angle 15 to 30 degrees variable

1. Water jet pump

Pressure Max240MPa
Water volume Max 35ℓ/min
2 units connected operation

1. Wet spray nozzle for narrow spaces

Squeeze type continuously variable inverter type
Transport capacity Horizontal 120m/Vertical 30m
Power 3.7kW 200V
Discharge capacity 2.3 ~ 45 ℓ/min
Dedicated nozzle with angle adjustment function