A new material batch with lower elongation: a class 0.5 servo tensile tester pins down every batch with a full curve

Model: NL-LLSY-5T

The problem

Change the raw material batch and tensile strength or elongation can quietly drop; without a curve nobody can tell whether it is the material or the process. A hand-held force gauge gives a single peak value, fracture position, yield point and elongation are written down by hand, and batches cannot be compared. When a customer audit asks for raw curves and statistics, there is nothing to show.

Capability

The machine is built to class 0.5 accuracy with a 50kN (5 tonne) capacity selectable within the range: force measurement from 0.2% to 100%FS with +/-0.5% accuracy, force resolution 1/300000 and stepless auto-ranging across the whole span, so small crimp-pull values and heavy structural samples are both measured properly on one frame. Displacement indication error is within +/-0.5% with 0.04mm resolution; speed is adjustable from 0.01 to 1000mm/min within +/-0.5%. A Delta servo motor and servo controller drive an NMRV050 precision hollow cast-aluminium reducer through twin precision ball screws and 50mm guide columns (induction hardened and hard-chrome plated, above HRC60), with NSK ball bearings and a high-strength timing belt. Test stroke is 1000mm without fixtures and clear column spacing is 410mm. Tension, compression, three- and four-point bending, shear, tear, peel, adhesion and folding tests can all be configured. The Windows-based software offers Chinese/English interface, function navigation, graphic test flows and break-point stop; test projects are created by technicians and simply recalled by operators. Force-displacement curves are plotted live with multi-curve overlay analysis, statistical calculation (mean, standard deviation, coefficient of variation), user-defined data items and formulas, and Word/Excel report output. Protection covers mechanical limit switches, E-stop braking, over-current, over/under voltage, leakage, software over-load limits and break-point stop; the main frame and control cabinet are separate, finished with DuPont powder coating cured at 200degC.

Key specifications

• Application: tensile, compression, bending, shear, peel and tear testing of materials
• Max test force: 50kN (5 tonne), capacity selectable within 50kN
• Accuracy: class 0.5; range 0.2-100%FS; force accuracy +/-0.5%
• Force resolution: 1/300000, stepless auto-ranging
• Displacement: indication error +/-0.5%, resolution 0.04mm
• Speed: 0.01-1000mm/min, accuracy +/-0.5%
• Test stroke: 1000mm (without fixtures); clear column spacing 410mm
• Drive: Delta servo motor 0.75kW with servo controller and NMRV050 reducer
• Transmission: twin ball screws, 50mm guide columns above HRC60, NSK bearings, timing belt
• Software: live curves, overlay analysis, statistics, custom formulas, Word/Excel reports
• Frame and supply: 560x420x1800mm, approx. 560kg, AC220V 50Hz
• Fixtures: one tensile fixture included; compression, bending, shear and peel fixtures optional

Applications

Incoming inspection of hardware and metal stock; mechanical validation of rubber, plastics and cable; insulation and terminal pull-off strength; spring and fastener load testing; R&D material comparison and third-party mechanical testing

About the manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd provides non-standard customization, drawing confirmation, factory acceptance, on-site installation and commissioning, operation training and long-term technical service; 12-month warranty and long-term spare parts supply. Tel: 0760-88500902 / 13416787649. Web: en.zsnaili.com.