ZOLMAT
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ZOLMAT
Grundodrill ACS300 directional drilling rig in ZOLMAT livery at sunset on the edge of a field

Since 1991

No excavation. Below the surface.

Directional drilling, soil displacement hammers and steel pipe jacking. Under roads, railways, rivers and built-up areas, with no broken pavement, traffic restrictions or reinstatement.

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Without borders

Our machines know no borders.

We start from Budakeszi, and today we also work well beyond the western border.

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Budakeszi Hungary Slovakia Austria Germany Luxembourg Belgium Netherlands
35
years in the trade
14
company-owned HDD rigs
~300 t
combined pull and thrust across the fleet≈ 3,015 kN

There is no room for improvisation underground.

Zoltán Varga, managing director, ZOLMAT Kereskedelmi Kft.

Technologies

Drilling, jacking, welding. One source.

For every route we choose the method that suits the soil and the diameter, and we weld the pipes on site with our own machine.

  1. Grundodrill directional drilling rig at work Directional drilling (HDD) The rig launches the drill string from the surface and the steerable head follows the planned arc. After reaming, the product pipe is pulled in one pass. Diameterreaming up to Ø 1000 mm Depthup to 15 m Details
  2. Soil displacement hammer A compressed-air hammer displaces the soil. The fastest solution for short, straight crossings under pavements and driveways. DiameterØ 55–200 mm Lengthmax. 25 m Details
  3. Steel casing in the pit with two welders Steel pipe jacking A hydraulic machine jacks the steel pipe under a road or track while an auger removes the soil. Up to Ø 1,100 mm, without settlement. Diameterup to Ø 1,100 mm Lengthpipe diameter (mm) ÷ 10 = length (m) Details
  4. Butt welding PE pipes on site PE pipe welding Heated-tool butt welding of PE, PP and PVDF pipes on site, with our own ROTHENBERGER ROWELD P355 B, to DVS guidelines. DiameterØ 90–355 mm MaterialPE · PP · PVDF, to DVS Details
Road · 2 lanes Cable 20 kV · −1.5 m Water PE Ø160 · −2.1 m Gas PE Ø110 · −1.7 m Fibre · −1.1 m Entry · 12° Exit pit Product pipe PE Ø315 0+015 −2.3 m 0+030 −4.0 m 0+045 −5.2 m 0+060 −6.0 m 0+075 −6.3 m 0+090 −6.0 m 0+105 −5.2 m 0+120 −4.0 m 0+135 −2.3 m −6.3 m min. 1.5 m −2 m −4 m −6 m −8 m −10 m Gravel fill Clay Sand, gravelly sand ZOLMAT · HDD crossing · long section Scale 1:200 · depth in m 01 / 01

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This is where the drill head surfaces. Let's talk about your alignment.

We reply within two working days with a technical proposal.

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