Make & break of screwed connections Archive

+49 5141 9898-0 info@koller-celle.de 5 Bruchkampweg, 29227 Celle/Germany

Quality brand

Made in Germany

Experience

100 plus years

Reliability

100% functional

Contact

Showing all 4 results

Show sidebar

Bucking Unit 18,500 Nm

The bucking unit have been designed to make and break screwed connections with high torques. The unit is a combination of a KOLLER hydraulic vice 220 kN and a hydraulic operated chain tong. For the basic unit without electronic data logger, no electrical supply is required. Both, the hydraulic vice and the tong are supplied by pressure air driven hydraulic power packs. Since the bucking unit is mounted on a solid steel frame with forklift truck pockets, it is transport friendly and can be moved easily on site.

Bucking Unit 40,000 Nm

The bucking unit has been designed to make and break screwed connections with high torques. The unit is a combination of a KOLLER hydraulic vice 220 kN and a hydraulic operated chain tong. For the basic unit without electronic data logger, no electrical supply is required. Both, the hydraulic vice and the tong are supplied by pressure air driven hydraulic power packs. Since the bucking unit is mounted on a solid steel frame with forklift truck pockets, it is transport friendly and can be moved easily on site.

Workbench 1700

The Koller workbenches have been designed to make and break screwed connections with high torques. To accommodate the high torsional forces, the workbenches have extremely stable and torsionally rigid frames. All available workbench equipment is equipped with dovetail mounting plates and are stepless slidable and positionable as well as turnable for 180 degrees in the bench.

Workbench 2000

Microtrenching

Microtrenching is a minimal-destructive and very fast method of laying communication cables in existing traffic areas. In the process, wide joints are cut into the surfaces with diamond blades. Directly after the cut, ductworks are inserted and then the joint is potted. Time and cost-intensive earthworks at the edge of the traffic areas are thus avoided or minimized.

With microtrenching machines based on the new fully hydraulic RSF 820 floor saw, RELLOK provides the necessary special equipment for the application of this future-oriented cable laying technology.

Differences between
Grinding/Grooving and Bump cutting

With grinding and grooving, defined textures and groove profiles are made into the surface. Regardless of the given road surface, the grinding profile must always be the same depth. This is the only way to ensure the desired function (e.g. water drainage) throughout. With bump cutting, no groove profile is created, but a new road surface is created by grinding. With RELLOK bump cutters this is achieved as follows:

Grinding / grooving

The front wheels are arranged in line with the grinding shaft. Depending on the desired grinding depth, the shaft is lowered below the level of the front wheels and fixed. During the work process, the front wheels and thus the grinding shaft follow the existing road structure exactly. The grinding depth remains constant.

Bump cutting

With bump cutting, the front wheels are mounted at a greater distance in front of the grinding shaft. Due to the long lever arm, the road surface no longer has any relevant influence on the vertical movement of the cutting shaft. The road surface is grinded down to the preset depth and bumps are removed. Depending on the design of the bump cutter, this function is already integrated or can be achieved with a corresponding attachment frame.

Bump cutting

Surface grinding using a shaft setting without spacers is also called bump cutting. This smooths out any unevenness that may arise in the manufacturing process or as a result of surface wear. By inclining the grinding shaft, the method can also be used to adjust small height differences (edges) between surfaces.

Grooving

The cutting of grooves to drain water in traffic areas is called grooving. In addition to roads, this method is also used on air traffic areas. In addition to the improved drainage of flowing water, the road surface also dries faster due to the enlarged surface.

Grinding

Grinding is used to produce a defined roughness of the surface in order to ensure the “grip” required for vehicles. Another application is the so-called acoustic grinding. Here, the shaft-saw blade configuration is chosen so that a special grinding pattern is created to reduce road noise.