LHYM Hydraulic nutDetailed product description：

1、 Overview

LHYM hydraulic nuts are suitable for bolts that require frequent disassembly and assembly; Pre tightening of oversized bolts; For situations such as locking large workpieces. And it can be used as a hydraulic interference fit connection disassembly tool.  
The advantages of hydraulic nuts include: easy operation, labor-saving, high preload force, safety, and reliability. They can be used in places where traditional methods cannot be completed.  
The current specifications of hydraulic nuts produced are M120 × 3-M320 × 6, and the oil injection methods are divided into axial oil injection and radial oil injection. The pressure level is 40Mpa; 21Mpa。  
It can also be designed and manufactured according to user requirements to meet different thread specifications and locking strokes.

2、 Structural diagram


3、 LHYM Hydraulic Nut Technical Parameters

Model number	D	D1	H	Pressure ring		Axial pressure	Pressure ring pressure
				Journey L	area
	Millimeter				Flat house in centimeters	MPa	KN
LHYM-G120×3 LHYM-Tr120×6	two hundred and twenty	one hundred and eighty	sixty	five	seventy-seven	forty	two hundred and seventy-seven
LHYM-G130×3 LHYM-Tr30×6	two hundred and thirty	one hundred and ninety	sixty	five	eighty-two	forty	two hundred and ninety-five
LHYM-G140×3 LHYM-Tr40×6	two hundred and forty	two hundred	sixty	five	eighty-seven	forty	three hundred and thirteen
LHYM-G150×3 LHYM-Tr50×6	two hundred and seventy	two hundred and twenty	seventy	five	one hundred and twenty-five	forty	four hundred and fifty
LHYM-G160×3 LHYM-Tr160×6	two hundred and eighty	two hundred and thirty	seventy	eight	one hundred and thirty-two	forty	four hundred and seventy-five
LHYM-G170×3 LHYM-Tr70×6	two hundred and ninety	two hundred and forty	seventy	eight	one hundred and thirty-eight	forty	four hundred and ninety-seven
LHYM-G180×3 LHYM-Tr80×6	three hundred	two hundred and fifty	seventy	eight	one hundred and forty-five	forty	five hundred and twenty-two
LHYM-G190×3 LHYM-Tr90×6	three hundred and ten	two hundred and sixty	seventy	eight	one hundred and fifty	forty	five hundred and forty
LHYM-G200×3 LHYM-Tr200×6	three hundred and twenty	two hundred and seventy	seventy	eight	one hundred and fifty-seven	forty	five hundred and sixty-five
LHYM-G210×3 LHYM-Tr210×6	three hundred and thirty	two hundred and eighty	seventy	eight	one hundred and sixty-three	forty	five hundred and eighty-seven
LHYM-G220×3 LHYM-Tr220×6	three hundred and forty	two hundred and ninety	seventy	eight	one hundred and sixty-nine	forty	six hundred and eight
LHYM-Tr240×6	three hundred and seventy	three hundred and twenty	eighty	eight	one hundred and eighty-eight	forty	seven hundred and thirty
LHYM-Tr260×6	four hundred	three hundred and fifty	eighty	eight	two hundred and seven	forty	eight hundred
LHYM-Tr280×6	four hundred and twenty	three hundred and seventy	eighty	eight	two hundred and seventy	forty	one thousand
LHYM-Tr300×6	four hundred and fifty	four hundred	ninety	ten	two hundred and ninety-four	forty	one thousand and one hundred
LHYM-Tr320×6	four hundred and seventy	four hundred and twenty	ninety	ten	three hundred and ten	forty	one thousand and two hundred
LHYM-Tr340×6	four hundred and ninety	four hundred and forty	one hundred	twelve	three hundred and twenty-five	forty	one thousand two hundred and sixty
LHYM-Tr360×6	five hundred and ten	four hundred and sixty	one hundred	twelve	three hundred and forty-one	forty	one thousand three hundred and twenty
LHYM-Tr380×6	five hundred and thirty	four hundred and eighty	one hundred	twelve	three hundred and fifty-seven	forty	one thousand and four hundred

The parameters in the table may change due to improvements without prior notice.

4、 Usage and precautions
1. Fill the manual pump with hydraulic oil before use, with the oil injection port at the rear end of the manual pump. Open the nut to inject oil and lock it after injection. When applying pressure, press the handle above the pump up and down, and lock the unloading switch handle on the right side of the pump clockwise; Rotate the handle counterclockwise to relieve pressure. The left side is connected to a pressure gauge, which can observe the pressure indication during pressurization. The front end of the manual pump is connected to an oil hose.
2. The hydraulic nut consists of a nut body, a pressure ring, an oil injection port, and an oil discharge and exhaust joint. When using, clean the appearance of the nut. Screw the nut into the workpiece and lock the nut. The pressure ring should be in its original position. Then, insert the oil injection hose interface of the manual pump into the oil injection port, lock the unloading switch handle on the right side of the manual pump, and slowly apply pressure. At the same time, turn the air release cap on the upper part of the oil discharge and exhaust joint inward to release air until the air inside the nut is completely discharged. After clean hydraulic oil flows out, loosen the air release cap outward to close the one-way valve. Continue to apply pressure and inject oil, so that the pressure ring can be pressed outward to achieve the desired compression effect. Apply pressure until the desired compression effect is achieved. Release the unloading switch handle and loosen the pressure hose connector of the manual pump.
3. Loosen the nut and rotate the oil discharge and exhaust joint inward until the hydraulic oil flows out, then slowly loosen the nut.
Before tightening the nut into the workpiece, please do not apply pressure to the nut to prevent the pressure ring from being biased and dislodged. When not in use, please drain the oil from the nut and return the pressure ring to its original position for future use. Add butter to the threads to prevent rusting.