UTD – Bolt Tensioners For Anchor Bars

Force: 661 – 2644 kN
Stroke: 25 – 100 mm

Features

The bolt tensioner series is designed to pull Dywidag or similar anchorage threaded bars. The bars available on the market are characterised by different values of tension. For this reason, the user will have to verify the correct force to be applied. It’s important to know that the threaded bar sticks out sufficiently to receive the puller and the reaction nut. This projection must be taken into consideration while installing the threaded bar. They are built to be as light as possible given that they are fabricated in a light alloy. The models that are lighter than 25 kg are equipped with a handle necessary for transport, while the heavier ones are equipped with eyelets. They are typically built as oil return cylinders with 50 mm of stroke, but they are also available in single-acting gravity or spring return UTD60M25 (spring return) versions or UTD60G25 (gravity return) versions.

Every bolt tensioner can also be used with smaller diameter axles than the maximum expected, corresponding to the hole. In this case, it’s suggested to use reducing rings, which are available on request, positioning them under the reaction nut in order to distribute the force and keep the system centered. To facilitate the rotation of the spherical nut, it is available on requested hexagonal wrenches that can be activated with tommy bars through the passages, which are located on the lower part of the body.

UTD 

We suggest you use PN26#G + MDM41G with 2 hoses SNQ#M of different lengths.

To operate

Y = pre-pressing steel DYWIDAG Y1050H

Dywidag-type bar: 

B = GEWl® B500B Threadbar P = GEWl® Plus S670/800 Threadbar