Hydraulic Bolt Tensioning Cylinder type MS, multi-stagedSimultanous tensioning of multiple bolted joints with ITH Multi-tensioning. For this casing ITH round nuts are used. The nuts are tightened down using a dbolt 1 cyl pin dboltt the support opening at the turning sleeve. To match specific requirements of applications ITH is able to customize the design. Dbolt 1 cyl Bolt Tensioning Cylinders will then be operated by a single hydraulic pump.
1-Cyl Dbolt K3 Venetian Bronze - Case of 3
Simultanous tensioning of multiple bolted joints with ITH Multi-tensioning. For this casing ITH round nuts are used. The nuts are tightened down using a turning pin through the support opening at the turning sleeve. To match specific requirements of applications ITH is able to customize the design. All Bolt Tensioning Cylinders will then be operated by a single hydraulic pump. With the optional test gauge the applied pressure of the complete hydraulic circuit can be checked.
The simultaneous pre-tensioning of the bolts ITH Multi-Tensioning allows a uniform and precise application of the pre-tensioning force. This improves the quality and the durability of a bolt connection significantly. During the tensioning of the slewing bearing the bolt connections have to be evenly pre-tensioned.
If not then the risk of galling between the ring element and the castors is really high. Therefore the ITH bolt tensioning cylinders are precise and deliver an even result which guarantees a sustainable bolt connection. The radius of the tool has been customized to the notches that are at the turbine.
In this case the round nuts with radial wholes are tightened and loosened through a small window at the support by using the turning pin.
The Bolt Tensioning Cylinder configuration here is: The bolt tensioner allows for fast, repeatable and precise tensioning of the bolts. The screw space at the ring flange number of bolts can be minimized Due to these factors you can reduce the flange thickness amount of steel , this leads to a cost advantage at the wind turbine with the solutions of ITH Bolting Technology.
Optional Nickel-Chromium coating which prevents components from corrosion. The innovative ITH safety concept for Bolt Tensioning Cylinders includes the patented cycle counter, the patented protection cap at the handle and the patented safety fracture device. Increasing the working speed: The integrated automatic piston return pushes the piston back to its end position when the hydraulic pressure is released Change bushing positions even with the cylinder cover. One Bolt Tensioning Cylinder can be equipped with several change bushings for different bolt dimensions which is flexible and cost-effective.
Setting up the Bolt Tensioning Cylinder the inside turning sleeve automatically adjusts and contains the nut. The control notch on the foot of the support offers an easy visual inspection to check, if the nut lays even with the surface before pressurizing the BTC. With an attachable digital measurement gauge the realized bolt elongation of each bolt can be measured. This allows to compare the realized force of each bolt connection among a series of bolting operations.
Thereby the nut can be turned easily in the direction of rotation with a hand ratchet. Strong and flexible for an easy handling. Various hydraulic connection configurations can be chosen due to application requirements: Design Type MS Multi-stage: Thread projection The minimum required thread projection of the bolt above the nut: The BTC can be used for the following fastener configurations Hexagon nuts. Feel free to contact us for an individual design or further information.
The bolt tensioning cylinder is threaded onto the bolt by use of a hand torque wrench or a battery nut runner. The calculated pressure is generated by an ITH high-pressure pump.
This creates a torsion and friction free elongation of the bolt. The hydraulic pressure at the pump is directly proportional to the pre-load force of the bolt tensioning cylinder that is applied at the bolt. When the pressure has been achieved the nut is tightened down by use of a hand torque wrench for controlled torque output.
In the conventional system torque value method the pre-load force is applied by a mounting process which shows torsion- and friction stresses at the nut and the bolt by torqueing them together.
During this process the torqueing tool has to work against to moment of thread pitch and the friction at the thread on both laydown surfaces. At the assembling process the thread friction, the head friction- and moment of thread pitch come all together.
The assembly pre load shows a high deviation based on the deviation of the friction values of the thread and under the head of the volt. Being a whole system supplier we are not determined to one specific bolting method - Therefore we advise you objectively and offer the best technical and cost-effective solution.
Contact us on any questions regarding your bolt connection or for any technical questions. We advise you free of charge and offer a free on-site inspection. Bolt Tensioning Cylinder type MS. Technical data, application examples, features and function.
Type MSK - mounting of a wind turbine detail. Typ MSK - mounting of a wind turbine total. Type MSK - slewing bearing M Type MSK - gas turbine. Type MSK - Ladle turret. Type MSK - inner tower flange of a wind turbine. Type MSK on a tower crane connection. Carrying strap and options. Counts each pressure cycle of the tool and clearly displays the current cycle Offers an easy way to track working procedures for users Improved tool management by tracking cycles for maintenance intervals and service, which promotes safe working conditions.
All horizontal connections are compatible with optional safety handle on the left. M 16 to M Please contact us for bolt qualities 5. Hexagon nuts EN High strength pre tension able bolt connections for the steel constructions former DIN Heavy hex nuts Hexagon nuts according to customer designs Round nuts: The bolting process The bolt tensioning cylinder is threaded onto the bolt by use of a hand torque wrench or a battery nut runner.
Advantages of the ITH Stretch Method in comparison to the traditional method In the conventional system torque value method the pre-load force is applied by a mounting process which shows torsion- and friction stresses at the nut and the bolt by torqueing them together. Contact and technical consultation in bolting technology. All information at a glance Order your product brochure free of charge: As a digital version or printed brochure.
Objective technical advice Being a whole system supplier we are not determined to one specific bolting method - Therefore we advise you objectively and offer the best technical and cost-effective solution. Contact us for a free consultation Contact us on any questions regarding your bolt connection or for any technical questions. Use our contact sheet. Accessories for bolt tensioning cylinders and hydraulic nuts. Bolt Tensioning Cylinder Test Stand. Testing Bolt Tensioning Cylinders on-site: Automatic test procedure and digital documentation via industry-PC.
High pressure hydraulic pumps for bolt tensioning cylinders BTC. Electric, pneumatic, manual and battery-powered high pressure hydraulic pump series.
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