 Dongfang Instrument Factory is a key enterprise of AVIC, located at Hanzhong city of Shaanxi province, it is the earliest company accepted by the State High-tech Corporation. Our factory was set up in 1970, and was moved in the South Region of Hanzhong Economic Development Zone in 2005. Now, We has 0.27 billion assets,650 employees and 1400 types of equipment used in flight control simulatation, Beidou positioning simulation, machining, heat-treatment, punching, welding, centrifugal casting, final assembling, physical and chemical testing, measuring and inspecting. There are another 80 sets of high precision, test and examining equipment, such as 5-Axis Linkage Machining Center, Numerical Control Car(NC), Computerized Numerical Turn-milling Control Center, Three Combined Test Equipment, Three-coordinate Measuring Machine(CMM) etc.. The advanced technique and enough talent pool have greatly improved the R&D capability, the manufacturing level and the products quality.
During the 40 years, we not only keep our tradition technology advantages, but also speed up our research and development ability. And now our defense products have been widely used in helicopter control system, UAV navigation and flight control system, Beidou(compass) position satellite system, MEMS and fiber-optic strapdown inertial navigation system(INS), gyroscrope and micro-motor and so on.
With the development of the science and technology, torque wrench has become an important parameter in machine measuring. Our self-research products own the Intellectual Property and more than 20 invention patents. The new high-tech product——ZHUNDA torque tools, which has gained the national and international customers due to high precision, complete ranges from 0.2N.m to 20000N.m, stable performance, convenient usage, durable and circumspect after-sale services. Nowadays, ZHUNDA torque wrenches are widely used in aviation, space, fight, railway, boats and ships, automobile, motorcycle, wind power, petroleum, bridge, metallurgy, electrical and internal-combustion engine industry etc. ZHUNDA torque wrenches now have been sold to Europe, America, Japan and other developed countries. In 2006, ZHUNDATM (Trade Mark) was named the famous brand of Shaanxi province, and in 2011, ZHUNDATM (Trade Mark) has been named China Well-known Trademarks. At present, we have become the strongest and largest professional torque tools and equipment manufacturer in China.
The designing and manufacturing of ZHUNDA torque wrench have achieved the State Standard GB/T15729 GENERAL TECHNICAL CONDITION OF BRAND TORQUE, and International Standard: ISO6789-92. The production has obtained the MAKING ME ASUREMENT EQUIPMENT PRODUCT CETIFICATE, and also many National Invention Patents. The design, exploit, produce and service of the torque tools execute absolutely International Quality Standard GB/T19001-2008, and achieve the Quality Management System Attestation Certificate, which awarded by China Xinshidai Certification Body.
Our products mainly include:
■ NB/NBD Series of Mechanical Torque Wrench (ACCURACY CLASS: +/- 4%) ;
■ TW Series of Preset Torque Wrench (ACCURACY CLASS: +/- 3%);
■ ZNB Series of Dial Indication Torque Wrench (ACCURACY CLASS: +/- 3%);
■ CNB Series of Digital Torque Wrench (ACCURACY CLASS: +/- 1%);
■ NQG/NQY Series of Torque Screwdriver(ACCURACY CLASS: +/- 6%);
■ YNBK/YNBQ Series of Hydraulic Torque Wrench(ACCURACY CLASS: +/- 3%);
■ YB Series of Special-Use Pump for Hydraulic Wrench
■ NZ Series of Torque Multiplier (ACCURACY CLASS: +/- 4%);
■ NJ Series of Torque Wrench Calibrator (ACCURACY CLASS: +/- 1%);
■ 2NJ Series of Torque Wrench Calibrator (ACCURACY CLASS: +/- 1%);
■ HNJ Series of Torque Wrench Calibrator (ACCURACY CLASS: +/- 1%);
■ YNJ Series of series of hydraulic torque wrench calibrator (ACCURACY CLASS: +/- 1%);
■ GNJ Series of High Precision Torque Wrench Calibrator (ACCURACY CLASS: +/- 0..3%);
■ NJG Series of Torque Screwdriver Calibrator (ACCURACY CLASS: +/- 1%);
■ NJD Series of Electric Loading Torque Wrench Calibrator (ACCURACY CLASS: +/- 0.3%);
■ NCS Series of Torque Testing Equipment (ACCURACY CLASS: +/- 0.3%).
■ NBU series of square drive slipper torque wrench (ACCURACY CLASS: +/- 6%).
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