FAQ

The shoulder is the strip of land alongside the roadway—usually unpaved, covered with gravel, or planted with vegetation. It supports the edge of the roadway, drains surface water away from the road, and serves as an escape and safety lane. If the shoulder is too high or overgrown, water pools on the roadway and the edge erodes.

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Over time, road shoulders rise above the road surface due to vegetation, humus, and deposited material. As a result, rainwater can no longer drain to the sides: it collects at the edge of the road, penetrates the subgrade, and causes frost damage and edge damage. Regular milling back down to the road surface level keeps the drainage system functioning properly.

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A three-step process has proven effective: 1. Break up and crush the existing material, including stones; 2. Grade the surface with a grader or motor grader—creating a cross-slope for water drainage; 3. Compact the surface. If the existing material is processed on-site, the need for purchased gravel and transportation is reduced.

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In most cases, there is no effective cross-slope: Water flows longitudinally down the lane, carrying away fine particles and eroding ruts. This is exacerbated by shoulders that are too high, clogged cross-drains, and poorly compacted surface layers. A clean crown or shoulder profile, unobstructed shoulders, and a well-compacted surface help prevent this.

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For the rehabilitation of gravel, forest, and farm roads, a tractor equipped with three attachments is often sufficient: a rock crusher or rock mill for processing the material, a grader or planer for shaping the surface, and a compactor for compaction. The appropriate size depends on the tractor’s power, the road width, and the material.

More on this: The PTH road construction system · Grader Front · Compactor

Hand-guided vibratory plates are designed for small areas and backfilling. For paths over longer distances, a compactor attached to a tractor, wheel loader, or excavator is more efficient: it has a wider working width and can be combined with other work steps—such as grading at the front and compacting at the back. The key factors are the material, layer thickness, and path width.

More on this: Compactor · Grader Front

In everyday use, the terms are often used interchangeably. A rock crusher breaks the rock into small fragments using several counter-strike bars, while a pure milling machine typically buries larger, unbroken rock under fine material.

More on this: Crusher · MicroCrusher

Either the stones are collected and hauled away, or they are crushed on site using a stone crusher and left in the ground. Crushing eliminates the need for hauling and landfill disposal and restores the area to a workable condition in a single operation. The minerals from the crushed stones also remain in the ground.

More on this: Milling stones in the field · Crusher

Reclamation means restoring an area that has been degraded by construction, mining, or damage so that it can be used again—for example, for agriculture or forestry. Typical tasks include leveling, loosening, and preparing the soil; crushing rocks and roots; and creating a surface suitable for cultivation.

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A forestry mulcher shreds vegetation, branches, and stumps, primarily at the surface. A forestry tiller works deeper into the soil, breaking up roots and mixing them in. A stump grinder selectively removes individual tree stumps—for example, in parks, gardens, or along roadsides.

More on this: WSF Stump Grinder · MicroCrusher

A grader is a grading machine with an adjustable blade: it removes material, spreads it, and creates a profile—for example, to level paths or create a cross-slope. In addition to self-propelled motor graders, there are attachment graders designed for front- or rear-mounting on tractors or wheel loaders.

More on this: Grader Front · Grader front

A dozer blade pushes material like a caterpillar—for spreading, backfilling, and rough grading. A grading blade is used, for example, on an excavator and is designed for finer grading and leveling of surfaces. Both are available as attachments, so no separate specialized vehicle is required.

More on this: DozerBlade · Leveller

Yes. Hydraulically powered attachment rock crushers and milling machines are also available for excavators. They utilize the excavator’s hydraulic system and are particularly advantageous in areas where a tractor cannot reach—steep terrain, slopes, and tight construction sites. PTH offers the Excavator Crusher for excavators ranging from 5 to 25 metric tons: the EC-M for 5–14 metric tons and the EC-L for 10–25 metric tons.

More on this: Excavator Crusher

This depends primarily on the working width, working depth, and material—the wider, deeper, and harder the material, the more power is required. The range extends from compact units for small tractors and implement carriers (MicroCrusher PTO for 30–75 PS, hydraulic MicroCrusher starting at 70 l/min and 220 bar) to large units for heavy-duty tractors. The exact specifications are listed in the data sheet for each model.

More on this: MicroCrusher · Crusher

Compact equipment is used for trail construction, capable of operating in narrow, steep terrain: mini excavators or small utility vehicles for route alignment and rough work, along with a compact rock and forestry mulcher that crushes, mixes, and redistributes rocks, roots, and soil in a single pass.

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Yes. PTH offers inspected used machines under the „PTH Top Used“ program: inspected and refurbished at the factory, with a 1-year Top Used warranty from the manufacturer and financing through partners. The inventory changes—if the machine you want isn’t available, you can have your name added to the waiting list.

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There is no fixed price: It depends on the working width, drive system (PTO or hydraulic), tooling, and options. A meaningful comparison can only be made based on a specific quote for the carrier vehicle and intended application. Certified used machines are a more affordable alternative.

More on this: Inquiry / Contact · Used machines

Yes, we organize practical demos to suit the machine and application (road/path construction, forestry, agriculture). Just let us know your preferred date - we will coordinate the location, carrier vehicle and tools.

More on this: Inquiry / Contact

Upon order, we ship ex works or arrange for transportation. Commissioning is performed by our team or a partner on site, including instruction and training for operators and maintenance personnel.

Original spare parts are available at short notice; express delivery usually 24-48 h (depending on destination and availability). Order using your serial number - our service will help you immediately.