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FRAME EXTRUSION

Usage – the most commonly used frame, good value for money, suitable for heavy traffic loads.

1. Marking the hatch location

  • The work with the installation of the manhole cover starts after completion of the road
  • The centre of the temporary hatch, the slab under the asphalt, is located by coordinates and the cut-out is marked.

2. Demolition

  • Uncover part of the hatch so that the lid can be removed
  • Clean the lid

3. Preparation for extrusion

  • Remove the lid
  • Clean the frame and check the joint between the frame and the shaft

4. Machine set-up

  • Hydraulic machine with fixed edge for frame extrusion
  • Centre it exactly above the hole

5. Machine operation

  • The four spikes go under the frame and pull up the edges so that the hatch is perfectly level with the road
  • Remove the extracted asphalt

6. Gap

  • The key is used for immediate height fixation
  • The resulting joint is cleaned

7. Formwork

  • The frame locks into the plane
  • Inflatable formwork with funnels is inserted

8. Grout

  • Grout with high-strength and resistance to chemical defrosting agents
  • After a very short time, the rapidly solidifying mass is ready for further processing

9. Completion

  • Refit the cleaned lid
  • After gap treatment, the result is a hatch in an ideal plane with the road
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