Model: NL-LLJ
The problem
Whether a silicone seal on a pressure cooker survives thousands of lid-pressurisation cycles cannot be judged by feel: an ordinary tensile machine breaks one sample once and cannot run fatigue cycles with load holding and dwell rhythm, while outside labs queue a batch for a week and stall every seal-structure verification.
Capability
Built to GB/T 16491-2022, the machine does tensile and compression load tests and fatigue life on one frame. A 0.5-grade load cell carries 1T (options within 50kN) with a force resolution of 1/700000 over a 0.2-100%FS range. Fatigue runs on a load - hold - dwell - unload rhythm with three settables: 0-999999 cycles, 0-1000kg load and 0-9999s dwell, matching the real pressurise-hold-release duty of a closing lid. The 800mm stroke (with wedge grips) and 0.001-500mm/min stepless speed serve both routine scans and slow creep-style loading; displacement error is within 1% of reading at 0.001mm resolution, and units switch among g, kg, N, kN, LB, MPa and kPa. Software plots force, deformation and displacement curves, computes mean, standard deviation and coefficient of variation, and exports Word/Excel reports; mechanical stroke limits, emergency stop, overload and software limit protections back up unattended night runs.
Applicable standards
GB/T 16491-2022 Electronic universal testing machines (design and manufacturing basis); sample specification and fatigue parameters follow the customer technical agreement.
Key specifications
- Basis: GB/T 16491-2022 electronic universal testing machine standard
- Load cell: 0.5 grade high-accuracy force sensor
- Capacity: 1T (options within 50kN)
- Force range: 0.2-100%FS, resolution 1/700000
- Fatigue settables: cycles 0-999999 / load 0-1000kg / dwell 0-9999s
- Stroke: 800mm including wedge grips
- Speed: 0.001-500mm/min
- Displacement: error within 1% of reading, resolution 0.001mm
- Units: g / kg / N / kN / LB / MPa / kPa
- Software: multi-curve analysis, statistics, traceability, Word/Excel reports
- Frame size: about 1500x500x1750mm
- Power: AC220V 50Hz
Applications
Fatigue life and incoming checks of seals for pressure cookers and kettles; supplier qualification and structure verification of silicone and rubber parts; tension-compression fatigue capability for third-party laboratories
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.
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