RG400 Centralizer Kit

Ancilliary Item

RG400 Centralizer Kit

The RG400 Centralizer Kit provides large scale auto-rotate centralizers designed for various civil and geotechnical drilling applications. Compatible with the DeviGyro RG40 Standard borehole surveying solution.

RG400 Centralizer Kit
5.7kg/12.56lbs per unit
530mm/20.86in per unit
Wheel sizes
45mm/1.77in & 125mm/4.92in
Centralizer range
100mm/3.93in to 400mm/15.78in

For optimal borehole surveying accuracy, it is imperative that the survey instrument is properly centralized in the drill hole. Especially in larger diameter, near-vertical drill holes predominantly seen in the civil construction industry, such as piling and raise boring drilling applications.

Complimenting the DeviGyro RG40 Standard’s adjustable centralizer system, the RG400 Centralizer Kit boasts heavy duty rollers and patent-pending rotating functionality, securing both smooth, high-speed descent and high precision. Adjustable between the range of 100 and 400mm / 4’’ to 15’’.

Compatible with the DeviGyro RG40 Standard borehole surveying solution, the RG40 Large Centralizer kit expands the already wide variety of surveying applications made possible with the DeviGyro technology.


  • Increase survey accuracy in large diameter drillholes
  • Scandinavian made - Robust and reliable
  • Two wheel sizes for adaptability
  • Auto-rotate functionality
  • Adjustable, user-friendly

Application areas

  • Civil Drilling Applications
  • Open hole surveying
  • In-rod surveying
  • Pilot holes
  • Piling
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Frequently asked questions about RG400 Centralizer Kit

Are the RG400 Centralizers included with an DeviGyro RG40 Standard kit?

No, RG400 Centralizer kits are an ancillary item and supplied on request.

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What is the total length of the DeviGyro RG40 assembly when using these centralizers?

1.6m/5.24ft (including the spear-head point).

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What is the total weight of the DeviGyro RG40 assembly when using these centralizers?

Either 15.9kg/35.14lbs or 16.6kg/36.64lbs, depending on the wheel size.

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