• MJ-400 DN118-450mm (4-18Inch) Portable Relief Valve Grinding Machine
  • MJ-400 DN118-450mm (4-18Inch) Portable Relief Valve Grinding Machine
  • MJ-400 DN118-450mm (4-18Inch) Portable Relief Valve Grinding Machine
  • MJ-400 DN118-450mm (4-18Inch) Portable Relief Valve Grinding Machine
  • MJ-400 DN118-450mm (4-18Inch) Portable Relief Valve Grinding Machine

MJ-400 DN118-450mm (4-18Inch) Portable Relief Valve Grinding Machine

    1)grinding diameter: Dia118-Dia450mm

    2)used for valve seat of  plane globe valve,valve seat of safety valve .

    3) spindle speed(rpm):0-900,0-2800

    4)the greatest grinding depth: 850 mm

    5)Power supply: 220 V/50Hz

    6) motor power: 1100W


1.Summarization of Portable Relief Valve Grinding Machine

MJ-400 Portable Relief Valve Grinding Machine is a new generation of products that is adeveloped to adapt to on-site maintenance gate valve. It has the advantages as below: the reduction of labor intensity, improving labor efficiency, replacing imported products, educing the maintenance cost. It is widely used in petroleum, chemical industry, steel mills, power plants and so on.

1) Portable Relief Valve Grinding Machine is equipped with a three - paw frame, and the machine can be fixed on the valve body at work to reduce the extra work strength and ensure the stability of the machine at the same time.

2) The front end of the spindle is equipped with a telescopic sleeve controlled by a pressure spring, and the axial pressure can be adjusted to make the spindle working in a flexible working state.

3) The main shaft output end adopts universal coupling, which can compensate the perpendicularity deviation of the machine installation to a certain extent.

4) The drive system is driven by adjustable speed motor, which can be adapted to the coarse and fine grinding of various valves, and the operation is convenient. The motor can operate in positive and negative two directions.

5) The three - paw frame is three - claw synchronizing. After replacing the sand paper, the precision of the repositioning is high.


2.Technical indicators of Portable Relief Valve Grinding Machine

1)grinding diameter: Dia118-Dia450mm

2)used for valve seat of  plane globe valve,valve seat of safety valve .

3) spindle speed(rpm):0-900,0-2800

4)the greatest grinding depth: 850 mm

5)Power supply: 220 V/50Hz

6) motor power: 1300W


3.Main components of Portable Relief Valve Grinding Machine

1) Spindle box components: including the spindle box and universal coupling The output end of the spindle is a telescopic sleeve, and its axial pressure can be controlled by a spring.

2) Three paw rack components: three claw synchronized centering, fixed spindle

3) Working part: including all kinds of grinding disc and grinding head, which can be selected according to the needs.


4. About Metals Kingdom

Metals Kingdom Industry Limited is a professional manufacturer of Portable Relief Valve Grinding Machine since 1994, we have rich experience in production and export. Our Portable Valve Grinding Machine, Valve Test Bench Connecting rod synchronous telescopic mechanism, Portable Pipe Beveling Machine, Pipe Beveling and Cutting Machine all gained the National Patent for utility models in 1996 and 2014, our factory passed ISO Quality Management Certificate in 2008, and got the Certificate of Material Supplier by China National Petroleum Corporation and National Power Corp.


We also provide you with high-quality:

Portable Valve Grinding and Lapping Machine

Stationary Valve Grinding Machine

Valve Pressure Test Bench

Pipe Beveling and Cutting Machine


You can also consult us for more product details or any other questions at any time, and we will provide you with the most professional answer in the shortest possible time.


5.Product Picture of Portable Relief Valve Grinding Machine

Portable Relief Valve Grinding Machine

Portable Relief Valve Grinding Machine


24 Service Line: +86 189 0312 3772
Email: sales@metalskingdom.com
Skype: gillian_wang75
Fax: +86 312 318 2003
Add: Power Science Valley, No.3088 Lekai N. Str, Baoding,Hebei,China PC 071051
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