A typical application case of Jinan Xinguang microcomputer controlled torsion testing machine

Among many industrial products such as automotive transmission shafts, high-strength bolts, torsion bar springs, precision wires, etc., torsional performance is one of the core indicators for measuring their safety and reliability. Both the torsional fracture behavior of metal materials under torque and the torque axial force relationship of fasteners need to be accurately measured by a torsion testing machine.

Jinan Xinguang microcomputer controlled torsion testing machine adopts imported AC servo motor drive, high-precision ball screw or cycloidal pinwheel reducer transmission, equipped with high-precision torque sensor and photoelectric encoder, to achieve precise closed-loop control and measurement of torque and torsion angle. The equipment has an accuracy level of up to 0.5 and supports multiple testing modes such as bidirectional (positive and negative) torsion, unidirectional torsion, and multi cycle loading. It is widely used in material research, product quality inspection, and process validation.

Core advantages of the equipment:

1. High precision torque measurement and control

-Torque 200Nm, test force measurement range 2% -100% FS

-Torque indication error ≤± 1% (optional 0.5 level)

2. Bidirectional twisting ability

-The device supports torsional loading in both forward and reverse directions, and can simulate the tightening and loosening process of bolts in actual use

-Automatically record the torque angle curve throughout the entire twisting process

3. High precision angular displacement measurement

-Real time monitoring of torsion angle using photoelectric encoder, with a resolution of 0.01 °

-Twist angle resolution 0.002 °

-Accurate capture of bolt yield torque point

4. Special bolt clamping fixture

-Customize specialized sleeves and clamps according to different specifications of M6-M20

-Convenient clamping and good alignment ensure that the test data truly reflects the torsional performance of the bolt body

5. Intelligent software

-Real time drawing of torque torsion angle curve, clearly presenting the entire process of bolt torsion (elastic section → yield section → fracture section)

-Automatically calculate parameters such as yield torque, torque, and torsion angle

-One click generation of testing reports that comply with standards such as GB/T 1239.3 and ISO 898-1

List of Applicable Standards

GB/T 10128 "Test Method for Room Temperature Torsion of Metallic Materials"

JJG 269 "Verification Regulations for Torsion Testing Machines"

GB/T 1239.3 "Technical Conditions for Cold Rolled Cylindrical Spiral Springs Part 3: Torsion Springs"

GB/T 239.1 "Metallic Materials Wire Part 1: Unidirectional Torsion Test Method"

GB/T 239.2 "Metallic Materials and Wires - Part 2: Method for Bidirectional Torsion Test"

ISO 7800 Unidirectional torsion test method for metal wires

ISO 9649 Test method for bidirectional torsion of metal wires

ASTM A938 Standard Method for Wire Twist Test

GB/T 3098.1 "Mechanical Properties of Fasteners - Bolts, Screws and Studs"

From measuring the torque coefficient of high-strength bolts to analyzing the torsional fracture of metal bars; From the ultimate torque verification of automobile transmission shafts to the process performance testing of steel wire and wire, Jinan Xinguang microcomputer controlled torsion testing machine serves the testing needs of various industries for the torsional performance of materials and components with high-precision measurement and control, bidirectional loading capability, intelligent software, and flexible customization solutions.