Hydraulic nuts, such as the SL-HYDNUT hydraulic nut and fractional thread hydraulic nuts, are innovative tools used in heavy-duty applications to facilitate the precise and efficient tightening or loosening of large bolts and studs. These nuts utilize hydraulic pressure to generate a controlled force, allowing for accurate positioning and alignment during assembly or disassembly processes. The SL-HYDNUT model, in particular, is known for its reliability and ease of use, making it a preferred choice in industries requiring high torque applications. Fractional thread hydraulic nuts, on the other hand, offer compatibility with fractional thread sizes, providing versatility for a wide range of fastening needs.

SL-HMV Hydraulic Nuts for Bearing Assembly

SL-HMV series hydraulic nut is mainly used for seamless connection of connecting parts, its working principle is to use high-pressure oil on the shaft to produce a thrust and the sleeve to produce a tension, so that the shaft and the sleeve are evenly connected together by force.

SL-CM Coal Mining Machine Hydraulic Nuts

The coal machine hydraulic nut utilizes hydraulic pressure to provide ultra-high preload, ensuring secure, vibration-resistant connections in coal mining equipment and other heavy industries.

SL-HN Hydraulic Nuts for Upper Loads

Hydraulic nuts for upper loads can be set to a precise preload with an accuracy of up to 3% earth; they can be supplied with a stroke indicator that allows the amount of tension to be observed, measured and controlled during operation.

SL-HN series top load hydraulic nuts are especially suitable for tightening in narrow spaces and heavy duty vibrating machinery, and can be assembled with several bolts at the same time. The torque-free design avoids friction, bolt twisting and other factors affecting bolt preload, and the tightened bolt is subjected to pure tensile force.

SL-HMVC Fractional Thread Hydraulic Nuts

Bearing assembly and disassembly uses hydraulic nuts – inch threads.Its working principle is through a high-pressure oil pump will be injected into the nut of hydraulic oil, push the piston to produce axial tensile force, the use of the material’s own elasticity will be thread locking, so as to achieve the effect of pre-tightening and anti-loosening.

SL-HYDNUT Hydraulic Nut For Dismantling Bearings

Sometimes mounting bearings in tapered housings can be a difficult and time-consuming process. However, with SOLY hydraulic nuts, mounting is very simple. Their use, especially for larger bearings, saves the need for heavy and time-consuming assembly work using shaft or socket nuts, impact spanners etc.
Removing bearings with tapered bores from the retaining or withdrawal sleeves is often a difficult and time-consuming task. However, with the help of the SOLY hydraulic nut, this task can often be carried out easily. To do this, the hydraulic nut is screwed onto the sleeve and supported on the block or bearing. After connecting the oil pump, oil is pumped into the hydraulic nut, which moves the ring piston until the bearing comes loose.

SL-YM Locking hydraulic nut/hydraulic nut

SL-YM Hydraulic Lock Nut

The locking hydraulic nut produced by our company is a series of products developed and produced according to years of practical experience in production, with reference to the relevant technology of foreign products and combined with the requirements of some manufacturers. It has the advantages of easy operation, labour-saving, large preload force, safety, reliability, and can be used in places where traditional methods cannot be completed. It is suitable for frequently disassembled bolts, pre-tightening of oversized bolts, locking of large-sized workpieces, etc., and can be used as hydraulic interference connection disassembling tool.