hynew Hydraulic Nuts

知识来源:专业液压扳手生产厂-江苏海力机械制造有限公司
访问次数:6448次
发布时间:2013-02-05


The hynew 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)。 It is manufactured in a choice of steel or stainless
steel of tensile strength to suit the required application。

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Advantages of using hynew Hydraulic Nuts:
The unique design of the hynew has given it improved technical efficiency of operation and cost/benefit
advantages over other tensioning devices。
The hynew provides advantages such as:

• Reduces maintenance down time。
• Improves safety on the job。
• Gives reliable and precise tensioning。
• Is user-friendly。
• Fast to fit and remove。
• Requires little physical effort。
• Is ideal for difficult or confined spaces

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The hynew Hydraulic Nut is suitable for use where:

• Accurate and reliable loading is required on bolting。
• Vibrational or torsional stresses are a problem。
• Regular maintenance requires repeated adjustment or removal of nuts。
• There are confined and difficult nut locations。

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How it works:
The hynew Hydraulic Nut assembly is screwed by hand onto the bolt (replacing the original nut) until
the base is tight against the working face。 Hydraulic pressure is then applied through the nipple fitting
on top of the nut body into the sealed chamber, forcing the piston and the nut body apart, thus
stretching and tensioning the bolt through the joint。

The threaded lockring, mounted on the nut body, is then screwed against the abutting face to retain
the induced load in the bolt。 The pressure is then simply released and the hydraulic coupling removed
from the nipple fitting, to complete the operation。

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Examples of Applications:

• Dragline: Pivot Motors, Pedestal Housing, Drag Motors, Hoist Motors
• Wash Plants: Vibrating Screens
• Quarries: Crusher Shells and Jaws
• Steel Mills and Recyclers: Shredders
• Shovels: Side Frame Bolts, Motor Mounts, Boom Sheave Pedestals
• Heavy Industry: Flanges

hynew® Hydraulic Nuts
consist of:
1。 Lockring
2。 Nut Body
3。 Inner seal
4。 Outer seal
5。 Piston
All standard hynew® Hydraulic Nuts come standard with CEJN type male snap fittings, 1/8” BSPP porting and bleed plugs。
• hynew® Hydraulic Nuts are supplied with spherical washers as standard
• Maximum force is generated using maximum operating pressure

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转载请注明:江苏海力液压扳手 http://www.hynew.com.cn

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