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Automatic hydraulic wrench pump:

1.  Intelligent CNC hydraulic wrench pump has a good human-computer dialogue panel, can choose Chinese or English interface;

2.  Applicable to all types of hydraulic wrench, not subject to manufacturer restrictions, has a good general performance;

3.  Fool mode of operation, does not require a dedicated operating staff, general staff after a brief training, are able to master the methods of operation;

4.  Select the appropriate hydraulic wrench models and pressure, you can output the rated torque, set torque or demolition nut, the system automatically stops working at the same time the buzzer tone, to adapt to work in a noisy environment;

5.  On the operation panel or the remote control handle to operate the hydraulic wrench in accordance with the automatic or manual mode, and convenient;

6. Compensation and fine-tuning can make adjustments and additions to the small torque requirements;

7.  With forced air cooling system, able to continue to work long hours.

New patent listed on State Intellectual Property Office of the People's Republic of China (SIPO).


MAS JHJX Machinery Manufacturing Co.Ltd was established in 2000 specialized in manufacturing hydraulic torque wrench, bolt tensioner,electric torque wrench and electric hydraulic pump. JHJX working with advanced CNC machining equipment focus on large bolts and nuts tightened, unpacking technology and power hydraulic practical research. JHJX products are widely used in mines, power plants(wind power, hydropower, thermal power, nuclear power) metallurgy, aerospace, shipbuilding, petroleum, chemical, railway, machinery manufacturing and other industries all over the world. JHJX is committed to providing customized bolts, nuts, solutions and full , complete techinical support services. Our company has a factory and office covering 15,000 square meters in Ma An Shan city which is 300 km away from ShangHai and has staff over 150. We have OEM customers worldwide. JHJX not seek for best, only better.

1994-1999: Precision tools machining, OEM for Honda automobile spare parts.

2000: Successfully applied patent of hydraulic torque wrench: JHB hydraulic torque wrench model. This patent was listed on State Intellectual Property Office of the People's Republic of China (SIPO).

2001: Successfully innovative another three kinds of hydraulic torque wrench model: JHM square drive torque wrench, JHX hydraulic torque wrench(Hollow wrench), JHK ultra-thin hydraulic torque wrench. Bolt tensioner and hydraulic cylinder.

2008: JHJX finished researching on pneumatic pump. In, JHJX pneumatic pump enter in to market (Max pressure 160MPA).

2010: Innovative traditional electric hydraulic pump. New automatic intelligent hydraulic pump come out from JHJX R&D. New patent listed on State Intellectual Property Office of the People's Republic of China (SIPO).

2011: New modern Electric/Pneumatic Torque Wrench completely finished researching. Faster and safer.

2012: JHJX are going to move into a new modern factory. The production capacity will reach a new level in order to serve more and more customers.

This modern factory will serve for worldwide hydraulic tools user in the future. JHJX will become the most trusted hydraulic torque wrench, electric torque wrench,, bolt tensioner and hydraulic pump world factory.

Future 2013: A new hydraulic hollow/ cartridge wrench will show to the customer. Light weight, easy working, stable (New generation of JHX model).

2014: Another generation JHM square drive hydraulic wrench will come to show customers. New project: hydraulic bolt, hydraulic cylinder.


Not the best, only better. Integrity-based.

Manufacturing process:
Not only seek for how to save cost but how to improve the products quality.