EziTite Hydraulic Devices

For the past 50 years Hydraulic Bolt Tensioning has been the accepted engineering practice to achieve highly accurate loads in many types of bolted joints. Using CAD technology we are able to provide the highest standard of calculated bolt loading and therefore prevent many of the losses and dangers associated with other methods of tensioning fasteners.

One of mans earliest tools was the lever, which when used in conjunction with an inclined plane allows us to apply a load. The combined mechanical advantages of these two machines enables us when using a nut and bolt to force the nut to climb the helix angle of the bolt which when it reacts against the joint to be clamped will transfer load to the bolt and keep the joint together.

This is the basis of applying a TORQUE to a fastener and if every thing goes well there will be sufficient load provided to overcome all the external forces acting on the joint, friction, thread galling, axial load on the bolt etc. and the joint will remain intact.

The application of hydraulic ‘straight line’ tensioning has allowed designers to specify exact bolt loads without having to rely on the inherent hit or miss Inclined Plane & Lever (Torque) methods which had been used previously.

Designed bolt loads are easily achieved by applying a predetermined hydraulic force to a calculated surface area confined in what can loosely described as a ‘Load Cell’. This load is transferred to the bolt which will stretch along its axis and the resulting load will be directly proportional to the hydraulic pressure applied and therefore known.

As a result of the bolt stretching under the hydraulic load and dependent on the type of joint, a gap will appear under either the hex nut or the locking ring dependent on the type of tensioner used, which will be turned down un-hindered by either load or friction. As the hydraulic load is released the hex nut or locking ring will maintain the applied load.

EziTite Products Range

Ezitite Hydraulic Nut

The EziTite® Hydraulic Nut is a precision engineered, high pressure, high performance, hydraulically operated bolt tensioning device that can be quickly and easily fitted and used with Technofast pumping equipment (eg. Hand Pumps, Electric / Hydraulic or Air / Hydraulic).

Ezitite Hydraulic Bolt

The EziTite® Hydraulic Bolt is a precision engineered, high pressure, high performance, hydraulically operated bolt tensioning device that can be quickly and easily fitted and used with standard pumping equipment (eg. Technofast’s hand operated, Electric Hydraulic or Air Hydraulic Pumps).

The Hydraulic Bolt is extremely resistant to vibration and shock loads. Hydraulic Bolts are used to minimise the time required to carry out critical bolting procedures. It is manufactured in a choice of steel or stainless steel of tensile strength to suit the required application.

Ezitite Hydraulic Clamp Nut

EziTite® Hydraulic Clamp Nuts are the modern, safe and efficient way to ensure precise tool clamping. EziTite® Hydraulic Clamp Nuts replace conventional torque-loaded threaded nuts to make shaft tensioning a simple, efficient and safe hydraulically assisted operation. They are also widely used to set large shaft bearings.

They are manufactured in a wide range of sizes to suit applications throughout many industries. EziTite® Hydraulic Clamp Nuts are made in a standard range to suit thread sizes from 50mm to 300mm and other sizes by request.

Ezitite Cam Nut

Many Technofast product users have wished to extend the benefits of EziJac Tensioning Systems across more applications, but have been restricted by bolts which do not have sufficient stud protrusion through the nut to apply these tools. There are many instances where stud replacement is not an option, or where stud protrusion is undesirable.

Technofast’s revolutionary CamNut EziJac system brings an affordable and efficient solution to this problem, in a compact system which is simple, safe and easy to use.

Ezitite Gland Packer

Owners and operators of centrifugal and axial flow pumps are familiar with the problems caused by fluid leakage through the packing gland of these. In some cases, costly mechanical seals can solve the problem, but this remedy is unsuitable in all situations. Technofast Industries have applied their hydraulic tensioning expertise to produce the Hydraulic Gland Follower which has now been demonstrated to resolve safety and operational issues associated with traditional packed gland sealing.

Ezitite A2 Dedicated Series EziJac

The EziJac Stud Tensioner utilizes the power of hydraulic pressure to easily produce the forces necessary to effectively tension bolts and studs. Once the EziJac is in place, screwed onto the bolt’s thread over the standard nut, the required pressure is applied to stretch the bolt to its recommended preload, and the nut screwed down to retain the load. The pressure is relieved, the EziJac removed and is ready to use again. EziJac Dedicated Thread Stud Tensioners provide the answer to many of the fitting problems associated with using larger tensioning equipment.

Ezitite A3 Modular Series EziJac

The EziJac Stud Tensioner provides accurate and versatile tensioning of bolts and studs whilst being fast, simple and safe to use.

The EziJac uses hydraulic pressure to tension the bolt to the exact load required. Once the bolt has been tensioned, the nut is wound down the thread to retain the load. The EziJac is then de-pressurised, released and ready to use again.

A4 Subsea Series EziJac

Technofast’s Subsea EziJac has been designed to address the difficulties experienced by divers operating the tools under water. The unique patented Tri-Nut allows a one handed operation & prevents gloves from getting caught (in pinch points). This means that the tool is both extremely fast to operate & it is safer for the diver than other tools available on the market.

Another important feature of the Subsea EziJac is that the Tri-Nut will lock into place even when operating the tool upside down. This is extremely beneficial for a diver, due to the harsh environment in which they are working.

Ezitite A5 2-Stage EziJac

Technofast’s A5 2-Stage EziJacs encompass a large range of slim bodied tensioners to complete maintenance on any application with restricted space.

The A5 series of hydraulic Tensioners are a lightweight, user friendly range of Tensioners, which are quickly and easily fitted in restricted spaces. These Tensioners are powerful & provide accurate and versatile tensioning of bolts and studs whilst being fast, simple and safe to use. When using Technofast’s A5 range of tensioners, down time can be dramatically reduced on all jointing applications. This in turn increases productivity and reduces costs to the end-user.

Ezitite FastaJac

Technofast’s FastaJac saves on production, labour and maintenance costs for manufacturers of plate heat exchangers. The use of a lightweight hollow cylinder jack in conjunction with the patented ‘Tri Nut’ allows the compression of plates to be carried out evenly, squarely and efficiently. The hydraulic cylinders simultaneously compress the plates.

Ezitite Hydraulic Head Nut

Since the development of the gyratory Crusher, the quarrying industry has sought better means for effective and safely tightening mantle head nuts.

Technofast Industries have successfully developed the EziTite® Hydraulic Head Nut System to replace standard mantle Head Nuts. In additions to technical and performance criteria, major considerations of the design are aimed at protection of operators from strike or shrapnel injuries commonly occurring when hammering tight the standard mantle head nut.

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Head Office (Perth)

88 Welshpool Road
Welshpool, WA, 6106 Perth

Queensland

26 / 1048-54 Beaudesert Road
Coopers Plains, QLD, 4108 Queensland

Our workshops

38 Cohn Street
Carlisle WA 6101

24 Ginger Street
Paget QLD 4740

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