1 brief introduction

NDW-20000Our company follows the standard GB/T16823.3-2010 A new type of fastener comprehensive testing machine designed according to ISO 16047:2005 Fasteners Torque/clamp force testing method is mainly used for the detection of physical properties during the tightening process of large hexagonal bolts in steel structures. It can automatically calculate parameters such as coefficient of friction between threads, bearing surface friction torque, tightening torque, clamping force, torque coefficient, etc.The system adopts microcomputer control, which has high accuracy and sensitivity in controlling and measuring loads and angles, and displays real-time test curves such as torque/time, axial force (clamping force)/time, torque/axial force (clamping force), etc.

The testing machine consists of a host, measurement control system, computer system and software package, functional accessories, and other parts.

2、 Technical indicators

1Maximum tightening torque: 20000 N·m；

2Maximum clamping force: 2000kN (customizable according to customer requirements)

3Maximum supporting surface torque: 15000 N·m;

4Measurement range of tightening torque: 200～20000N·m；

5Clamping force measurement range: 20～2000kN；

6Measurement range of supporting surface torque: 150-15000N · m;

3Relative error of test torque indication: 0.5 level (± 1%)

4Repeatability of testing machine torque: ≤0.5%

5Torque resolution: 1/500000

6Measurement range of torsion angle: （0～1000）°

7Test angle accuracy: ≤±0.1°

8Relative error of torsion angle measurement: ± 1.0%

9Maximum torsional speed: 5r/min

10Test bolt specifications: M30~M64

11Test bolt length: 120~800mm(Note: Small length specimens are only applicable to small diameter bolts with a length ≥ 4d)

12Power supply voltage: 380V ±10% 50HZ

13Motor power: 18.5kw；

14Main body dimensions (reference): 3600 × 900 × 1200mm;

15Host weight: About 2800kg

3、 System functions and features

1. The host adopts a horizontal structure, which is easy to operate and has stable performance during testing;

2. The control panel of the host is equipped with operation buttons, which are convenient and fast to operate;

3The motor is driven by a frequency conversion system. The characteristics of wide speed adjustment range, uniform and stable loading, and accurate control;

4The power part is driven by a planetary cycloidal pinwheel reducer, ensuring uniform and stable loading and high system stiffness.

5. The moving part adopts high-precision heavy-duty guide rails, which facilitate the clamping of samples and fixtures.

6. The system adopts dedicated microcomputer control software to display real-time test curves such as torque/time, axial force (clamping force)/time, torque/axial force (clamping force), etc., and can output test reports;

7. Equipped with manual and automatic uninstallation functions;

4、 System configuration

(1) Host

1Host rack 1 set

2Motor+reducer (International Trade) 1 set

2Variable frequency drive system (Yaskawa) 1 set

3Optical encoder (Internal security control) 1 piece

4High precision torque sensor (Senso Zhongheng) 1 set

5Supporting surface torque measuring device (friction coefficient) (Zhenhai) 1 set

6Clamping force measuring device (or multi-sensor combination) (Zhenhai) 1 set

7Precision heavy-duty guide rail （TBI） 1 set

8Digital Data Acquisition and Processing System (TENSON) 1 set

9Special software for computer control (TENSON) 1 set

(2) Auxiliary equipment

1Test fixtures for large hexagonal bolts used in steel structures: M30, M33, M36, M39, M42, M45, M48, M52, M56, M60, M64 1 set each Bolt length120~800mm(Note: Small length specimens are only applicable to small diameter bolts with a length ≥ 4d)

(3) Calibration device (optional, standard not included)

1Calibration device for torque sensor 1 set

2Cantilever beam sensor calibration device 1 set

5、 Software functions and features

① The control mode adopts an intelligent expert setting system, and users can customize the experimental process control method according to their actual requirements to automatically complete the experiment. The axial load detection torque of the specimen can be set, and the axial load detection torque of the specimen can also be set

② Adopting computer screen display, fully Chinese interface, and human-machine dialogue mode. All operations of the experiment are completed by the computer, and the computer screen displays the test torque, axial load, various test curves, and the working status of the testing machine. And display the tightening characteristic values of the calculated bolts, etc.

③ Computers collect data in real-time, perform data processing, and provide functions such as data storage, retrieval, statistics, and printing. Real time display, drawing curves, and the ability to zoom in or out of curves.

④ The size of the curve coordinates can be adjusted based on actual experimental data.

⑤ The test report is output in Word or Excel format.

★ Multiple experimental curves can be overlaid and compared, and output and printed.

★ Digital zeroing and calibration can be performed.

★ The experimental data is managed in a database format for easy querying and maintenance.

★ Note: The copyright of this material belongs to Jinan Tianchen Testing Machine Manufacturing Co., Ltd. It is strictly prohibited to disclose it without permission. Our company reserves the right to pursue legal responsibility.