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Manhole repair work


It is a circular cutting crusher equipped with button tip SAW and crusher.
Manhole lift repair technology that crushes the road surface at the same time as manhole cutting (CFS method)


  • Manhole road cutting crushing device equipped with button tip saw and button tip crushing drum
  • Manhole steel box leveling device (Easily level the manhole steel box on a slope)
  • Eco-friendly fiber reinforced ultra-fast cement




Current situation of manhole road surface repair work

The manhole road destroyed due to the current increase in automobiles and the continuous load on the manhole road caused by the load. Due to this, automobiles are frequently expensive, which leads to social and economic losses. For this reason, the manhole road surface repair work is performed once every 1-2 years, and the number of manhole road surfaces to be repaired is increasing.








The manhole road cutting and crushing equipment developed is


  • A button tip saw and a button tip crushing drum are mounted and circularly cut with a button tip saw, and the road surface is crushed at the same time with the installed button tip drum. Therefore, this process, which takes the most time in manhole road repair work, has the advantage of shortening the time during construction with our own equipment. It also reduces noise and dust generated during construction compared to the existing construction method.
  • The manhole steel box leveling device can easily level the manhole steel box even on a slope, making it possible to construct manhole roads on narrow hills rather than on flat land.
  • Eco-friendly fiber-reinforced super-fast-hard cement is an ultra-fast-hard cement containing jute fiber, which is crushed into a lump when crushed, minimizing the generation of scattering dust. And excellent strength.







Company Product Introduction

  • Button tip SAW, button tip drum shredder
    (Patent No. 10-2168933)

    • Simultaneous road cutting and crushing
    • Road cutting SAW applies a button tip to the side to reduce the side surface during rotational cutting. Smooth cutting in a straight line
    • A button tip drum is installed to crush the asphalt road surface to reduce the excavation time.
    • Shorter than existing equipment (about 1/2 reduction)
    • Cutting depth: 125mm
    • SAW: Button tip SAW (φ1,200) Cutting
    • Width (diameter): 1,200~ 1,700mm
    • Button tip cutter motor capacity: 233rpm (5 horsepower)
    • Button tip drum shredder motor capacity: 233rpm (5hp)



  • Manhole iron chest horizontal raising device
    (Patent No. 10-2132849)

    • When adjusting the horizontal height up and down the manhole rail, the iron rail is parallel to the asphalt road surface.
    • Support Horizontal adjustment is possible on a slope parallel to the road surface (existing equipment is difficult)
    • Improved horizontal adjustment precision through fine adjustment device
    • Eco-friendly because no separate height adjustment material is required



  • Packing tube (Formwork)
    (Patent No. 10-2101268)

    • Formwork for waste treatment and height adjustment layer construction
    • Since it is made of multiple tubes, it blocks the gap between the iron chest and the slab. Since the separate tube has a vibration function through pneumatic pressure, the initial speed is evenly Can spread
    • No need for vibrating bar to spread the gull height (Other companies are required in some cases)



  • Eco-friendly fiber reinforced ultra-fast concrete Mortar composition
    (Patent No. 10-2092246)

    • Eco-friendly fiber-reinforced ultra-fast-hardening concrete mortar uses jute fiber or glass fiber. To increase concrete strength and at the same time The composition was made with a composition that can be solidified.



  • Fiber-reinforced ultra-fast-hard concrete mortar (for plastering)

    • Fiber-reinforced ultrafast-hard concrete mortar contains jute or fiberglass While increasing the strength of concrete, it can solidify faster than existing products. The composition was made with the present composition.
    • Since pulverized aggregate is included, there is no need for separate aggregate Faster and stronger
    • The initial and final setting time of the ultra-fast-diameter concrete mortar is fast. Can be used




Construction image



  • Equipment center adjustment



  • Button SAW, drum shredder operation



  • Road cutting, crushing image




Eco-friendly aspect conformity


  • Constructability

  • Unlike existing construction methods, cutting and crushing the manhole road surface at the same time reduces construction time. Manhole rail leveling device aligns the level on the slope Eco-friendly fiber-reinforced ultra-fast cement uses jute fiber to improve strength and improve solidification speed


  • Responsibility

  • Fast and complete construction with high strength button tip saw and button tip drum shredder Positive impact on urban environment improvement by reducing automobile exhaust gas, ascon dust, dust and noise Extension of renovation period due to the use of eco-friendly fiber reinforced ultra-fast concrete mortar

  • Economics

  • Increased effect of budget savings due to rapid construction Reduced environmental social overhead costs such as reduction of traffic congestion, dust, noise and carbon dioxide compared to other methods

  • Efficiency

  • Prevents economic losses such as car idling due to traffic congestion Increase worker efficiency by reducing worker fatigue during construction

  • Universality

  • Water supply, sewage, communication, power manhole road surface repair construction is possible We can enter the relevant markets around the world and sell technology licenses. Perfect construction to prevent defects and suitable for maintenance






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