This machine is specially designed for door lock handle springs (such as return springs, torsion springs, compression springs, etc.), used to simulate the high-frequency compression/tension actions of ...
This machine is specially designed for door lock handle springs (such as return springs, torsion springs, compression springs, etc.), used to simulate the high-frequency compression/tension actions of springs in actual use, accurately detect their fatigue life, elastic attenuation and load performance, and ensure the stability and safety of door lock handles during long-term use. It is suitable for lock manufacturers, spring suppliers and third-party quality inspection institutions.
Core Technology and Functions
Multi-mode Fatigue Testing
Compression/Tension Testing: Simulates the reciprocating motion of the spring during the opening and closing of the door handle (stroke 0-100mm, frequency 1-60 times/minute), with a maximum load of up to 500N.
Cycle Count Setting: Adjustable from 0 to 999,999 cycles, automatically remembers settings after power loss, supports continuous operation or staged testing.
Load and Deformation Analysis
Elastic Modulus Detection: Real-time monitoring of the force-displacement curve of the spring (accuracy ±0.5%), calculates the elastic coefficient (k value) and permanent deformation.
Fatigue Failure Determination: Automatically records failure nodes such as spring breakage, plastic deformation, or a decrease in elasticity of more than 20%.
Environmental Simulation Testing (Optional)
High and Low Temperature Testing: -30°C to 150°C temperature chamber (optional), verifies the performance degradation of the spring under extreme temperatures (such as winter low-temperature embrittlement).
Salt Spray Corrosion Testing: Simulates a humid salt spray environment according to ASTM B117 standards to test the corrosion resistance of coated springs.
Typical application scenarios
Lock development:
Verify the elastic retention rate of the reset spring after 100,000 compressions (≥90% is qualified), and optimize material selection (such as 304 stainless steel vs. piano wire).
Test the ultimate tensile strength of high-load springs (such as those for anti-theft door handles) (≥1500N).
Production quality inspection:
Batch test the initial spring force consistency (within ±5% of the standard value), and eliminate deformed or broken defective products.
Conduct a 48-hour salt spray test to verify the corrosion resistance of galvanized springs (no red rust is qualified).
Supply chain verification:
Provide third-party test reports for spring suppliers to ensure incoming materials meet contract parameters (such as a lifespan of ≥50,000 times).
Certification testing:
Generate test reports that comply with CE, FCC, UL, and other certifications to support market access in international markets.
Quality control:
Test core indicators such as lock tongue fatigue and fingerprint module durability (100,000 press tests) before mass production.
Applicable customer groups:
Smart lock manufacturers (such as Kaiti, Deshiman, Luke)
Smart home quality inspection laboratories
Fingerprint lock manufacturers (such as Kaiti, Asia-Pacific Tian Neng, VOC)
Third-party testing laboratories (such as SGS, TÜV)
Security engineering integrators (requiring batch acceptance of door locks)
Technical parameters
| Item | Specifications |
|---|---|
| Test Station | Single station (dual-station parallel test optional) |
| Max Load | 500 N (customizable up to 2000 N) |
| Stroke Accuracy | ±0.1 mm |
| Frequency Range | 1–60 cycles/min (stepless speed regulation) |
| Compliance Standards | GB/T 1239.1-2009, EN 1670, ISO 7500-1 |
| Power & Air Supply | AC 220V±10%, air supply 0.25~0.6 MPa |
| Control Mode | 7-inch touch screen + PLC control, supporting data export (Excel/PDF) |
After-sales Service
Warranty Period: One-year warranty for the entire machine, and three-year warranty for core components (sensors, motors).
Technical Support: Free remote debugging, operation training, and annual equipment calibration services.
Spares Supply: Quick replacement service for consumable parts (jigs, hydraulic seals) is provided.
Ordering Process
Requirement Communication: Provide test standards, load range, and mechanical foot size.
Solution Confirmation: The supplier provides 3D drawings and parameter lists.
Production and Delivery: 15-20 days for standard models, 30-45 days for non-standard custom models.
Acceptance and Training: Engineers install and debug on-site and provide on-site training. 、
