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Trencher GM 1 AS with PTO drive as a rotary trencher

PTO drive – with the trencher GM 1 AS laying fiber optic cables and pipes made easy

Drainage pipe laying of cables and pipes plays an important role both in the construction of houses and in the agricultural use of land. Especially for very damp properties, for example, it is important to install drainage pipes to remove the existing moisture. Since such pipes are laid underground, so that they are protected and do not become an obstacle, it is first necessary to dig trenches. Here, many users opt for the reliable and powerful GM 1 AS trencher. This one scores with easy handling and its modern PTO drive.
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The GM 1 AS trencher with PTO drive at work

Basically, the GM 1 AS trencher only needs to be mounted on a tractor and the work can begin. If the tractor has a three-point linkage at the rear, the attachment trencher can be attached in a few simple steps. A major advantage here is the low dead weight of the tiller. This ensures that even small tractors can work with the device and dig trenches with it. The work of the PTO-driven milling machine is particularly impressive in this respect due to its speed and precision. An excavator can also be used to dig trenches, but on the one hand this takes longer and on the other hand the resulting trenches are not nearly as clean and precise.

In this context, the tiller benefits from its two augers. These ensure that the excavated material is deposited on the left and right sides of the trenches and does not slide back again. The high speed at work the device achieves by means of a mechanical PTO drive. This delivers 540 rpm as standard, but models with 1,000 rpm are also available. Basically, the GM 1 AS trencher has a tare weight of 600 kg, but this weight may vary depending on the equipment used.

Important components and features of the trencher GM 1 AS for Drainage pipe laying

In addition to its PTO drive, however, the GM 1 AS trencher for drainage pipe laying has numerous other properties and features to offer. Particularly noteworthy is their versatility in use. For example, the tiller can work with a wide variety of grave trees, with a tiller bar depth of 600, 850 or 1,200 millimeters. Likewise, it is possible to operate the milling machine with different milling knives between 70-300 millimeters. In this way, the trencher can be individually adapted to different work areas and is thus suitable for a wide range of tasks and projects.

This high flexibility and individuality of the trencher GM 1 AS for drainage pipe laying with PTO drive is also demonstrated by the different equipment variants available to users. For example, a sole scraper with sole plate can be used. This is capable of adapting both mechanically and automatically to the respective milling depth. Likewise, a manual or automatic laser system is available and, on request, the milling machine can be equipped with a pipe laying chute with a receptacle for pipes.

Choosing the right trencher GM 1 AS

Many users choose an attachment trencher from Grabenmeister because they can rely on quality and durability with such a device. The machines are excellently finished and perform very well even on difficult terrain. This saves time and energy when laying cables and pipes and is therefore very economical. Even long trenches can be dug, fitted with the appropriate pipes and cables and then filled in again without much effort.

Another argument in favor of such a tiller with PTO drive is the many years of experience of Grabenmeister. The milling machines of this company have already proven themselves in a large number of projects and always deliver excellent results. During the selection process, experts with a great deal of know-how and experience are on hand to help interested parties find the right trencher.


  • Prerequisite -carrying device: tractor/Unimog hydrostatic or supercreep gear transmission
  • Standard equipment: 2 screws
  • Milling beam depth: – 600, 850 and 1200 mm
  • Chain widths: – 70, 120, 150, 200, 250 and 300 mm (optionally in 44.45 or 75mm pcs.)
  • Carbon chisel chains
  • Knife chains
  • Sole scraper with sole plate, which mechanically/automatically adjusts to the respective milling depth
  • 2 augers (excavated material is deposited to the side)
  • Laser system manual or automatic
  • Pipe laying shaft and receptacle for pipes

  • Drive: mech. via PTO (540 rpm optionally 1000 rpm)
  • Weight: 800 kg
  • Length: 3.100 mm
  • Width: 1.600 mm
  • Height: 1.500 mm

(Weight and dimensions depend on the respective equipment)


If you have any questions, please use our contact form. We will promptly address your concern and contact you. You can also call us at +49 (0) 591 – 76 314. We are looking forward to your visit!


To get a better insight into the performance and capabilities of the trencher working speed, we recommend you to watch our videos on https://lingener-baumaschinen.de/videos/. There you will find informative content and hands-on demonstrations that will show you how this machine can revolutionize your construction project. In addition to this, we invite you to visit our video channel on YouTube. There you will find more videos that provide detailed insights into the functions and use of the trencher working speed.

Grabenfräsen für spezielle Arbeiten
Grabenfräsen für spezielle Arbeiten