hynew® Hydraulic Bolts

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
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发布时间:2013-01-29

hynew® Hydraulic Bolts
The hynew^® 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。

Features:

• Standard Range—20mm (7/8”) to 100mm (4”) bolt diameter。
• Unique Lockring thread technology ensures maximum retained load。
• Spherical seat gives alignment to joint face。
• Variety of seal designs for temperature/pressure requirements。
• Quick connect fittings。
• Stroke Indicator。

Suitable for:
The hynew^® 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。

How it Works?
The hynew^® assembly replaces the ordinary bolt on the application。 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 piston, 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。 This guarantees no galling of threads, no torsional stresses and ease of future removal as lock ring is unscrewed without friction。

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