Document Overview
Key Findings All five S3 semi-finished pump units completed the full 40-hour endurance cycle at 35 PSI load without any functional failure or visible abnormality, confirming the piston cup assembly meets internal reliability standards. Test Type: Reliability — Semi-Finished Product Life Test Standard: Internal Control…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Mechanical Reliability
Key Findings
All five S3 semi-finished pump units completed the full 40-hour endurance cycle at 35 PSI load without any functional failure or visible abnormality, confirming the piston cup assembly meets internal reliability standards.
- Test Type: Reliability — Semi-Finished Product Life Test
- Standard: Internal Control Standard (BTK-R-Q142/A0)
- Load Condition: 35 PSI, 12 V DC power supply
- Duty Cycle: 20 min ON / 20 min OFF, total accumulated run time 40 hours
- Samples: 5 units (C0306-1# through C0306-5#)
- Functional Check Interval: Every 5 hours of run time
- Result: All 5 samples — PASS
Test Overview
| Field | Detail |
|---|---|
| Test Title | Life Test of Air Pump (Semi-Finished Product) |
| Product No. / Name | Air Pump Semi-Finished Product |
| Model / Specification | ETENWOLF S3 Cordless Tire Inflator |
| Report No. | 2025032001 |
| Test Date | 2025-03-06 to 2025-03-20 |
| Sample Quantity / ID | 5 PCS — C0306-1#, C0306-2#, C0306-3#, C0306-4#, C0306-5# |
| Test Type | Reliability Test |
| Test Standard | Internal Control Standard |
| Test Purpose | Evaluate whether the piston cup life of the sample affects functional performance |
| Acceptance Criterion | No functional failure; confirm stability and reliability |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Power Supply | DC Power Supply |
| Test Fixture | Dedicated test fixture (测试夹具) |
| Pressure Regulator | Regulating valve (调节伐) |
| Supply Voltage | 12 V DC |
| Load Pressure | 35 PSI |
| Ambient Temperature | 23 °C |
| Relative Humidity | 60 % |
| Duty Cycle | 20 min run / 20 min stop |
| Total Required Run Time | 40 hours |
| Total Elapsed Test Duration | Up to 60 hours (including stop intervals) |
| Functional Check Interval | Every 5 hours of accumulated run time |
Test Procedure
- Pre-Test: Verify all five samples (C0306-1# to C0306-5#) are in factory condition; record initial appearance; connect samples to DC power supply via test fixture and regulating valve.
- Load Setting: Set regulating valve to 35 PSI back-pressure load; set supply voltage to 12 V DC; confirm ambient conditions are 23 °C / 60 % RH.
- Endurance Cycling: Run each unit for 20 minutes continuously, then stop for 20 minutes. Repeat this duty cycle until a total accumulated run time of 40 hours is reached.
- Periodic Functional Check: At every 5-hour milestone of accumulated run time, pause the endurance cycle and perform a full functional test on all samples; record results in the functional test log (see sibling sheet: 功能测试寿命数据).
- Post-Test Inspection: After completing 40 hours of run time, perform a final functional test and visual appearance inspection on all samples.
- Teardown Inspection: Disassemble samples; inspect the cylinder interior and piston cup for wear, damage, material loss, or any other abnormality; photograph findings.
- Acceptance Criteria: All samples must show no functional failure and no abnormal wear or damage to the piston cup assembly to be rated PASS.
Test Data & Results
| Sample ID | Test Duration (Hours) | Issue Description / Observations |
|---|---|---|
| C0306-1# | 60 | After 40 hours of run time — Functional test: OK; Appearance: No abnormality found |
| C0306-2# | 60 | After 40 hours of run time — Functional test: OK; Appearance: No abnormality found |
| C0306-3# | 60 | After 40 hours of run time — Functional test: OK; Appearance: No abnormality found |
| C0306-4# | 60 | After 40 hours of run time — Functional test: OK; Appearance: No abnormality found |
| C0306-5# | 60 | After 40 hours of run time — Functional test: OK; Appearance: No abnormality found |
Note: Functional test data recorded at each 5-hour interval is contained in the functional test log (see attached table — sibling sheet: 功能测试寿命数据).
Test Picture Observations: Post-60-hour appearance inspection confirmed no visual abnormality on any sample. Functional performance at 60 hours (elapsed) confirmed all units operational.
Teardown Findings: After the S3 motor completed the long-duration life test, external appearance showed no abnormality. Internal cylinder piston cups showed no wear, damage, or material loss. All units passed functional verification.
Conclusion
| Field | Detail |
|---|---|
| Overall Result | PASS (合格) |
| Standard Applied | Internal Control Standard — BTK-R-Q142/A0 |
| Test Conditions | 35 PSI load, 12 V DC, 23 °C / 60 % RH, 20 min ON / 20 min OFF duty cycle |
| Total Run Time | 40 hours accumulated |
| Samples Tested | 5 PCS (C0306-1# through C0306-5#) |
| Functional Failures | 0 |
| Appearance Defects | None |
| Piston Cup Condition | No wear, damage, or material loss observed on teardown |
| Verdict | The S3 semi-finished pump piston cup assembly demonstrates sufficient durability and reliability for production release |
Document Information
| Role | Name | Date |
|---|---|---|
| Tested By | Li Guanghua | 2025-03-20 |
| Checked By | Zhang Ronggui | 2025-03-20 |
| Approved By | Mai Shaoqiang | 2025-03-20 |
| Field | Detail |
|---|---|
| Form Number | BTK-R-Q142/A0 |
| Report Number | 2025032001 |
| Source File | S3-半成品寿命测试2025.6.30.xlsx |
| Sheet Name | S3-半成品寿命测试报告 |
Frequently Asked Questions
What does the S3 semi-finished product life test measure?
The test evaluates the durability of the piston cup (皮碗) inside the S3 air pump cylinder. The unit runs continuously at 35 PSI load under a 20-min-on / 20-min-off duty cycle for a total of 40 accumulated hours. Functional checks every 5 hours confirm the pump maintains full performance throughout, verifying the piston cup does not wear or deform in ways that would affect inflation capability.
How long did the ETENWOLF S3 endurance test run, and did all samples pass?
The test ran from 2025-03-06 to 2025-03-20. All five samples (C0306-1# through C0306-5#) completed the full 40-hour accumulated run time without any functional failure or visible abnormality, earning a PASS verdict under internal reliability standard BTK-R-Q142/A0.
What condition were the S3 piston cups in after the life test teardown?
Teardown inspection after the 40-hour endurance run found no wear, no damage, and no material loss on any of the five piston cups. The cylinder interior of all units was in normal condition, confirming the semi-finished assembly is suitable for production.
What power and load conditions were used for the S3 life test?
The test used a 12 V DC power supply with a 35 PSI back-pressure load applied via a regulating valve and dedicated test fixture. Ambient conditions were maintained at 23 °C and 60 % relative humidity throughout the test period.
Related Products
Explore the full ETENWOLF S3 Cordless Tire Inflator product page for specifications, features, and purchasing information.
This report is one of two test sheets from the same S3 semi-finished product life test workbook. The companion sheet contains interval-by-interval functional test data recorded every 5 hours during the endurance run:
- 功能测试寿命数据 — S3 Semi-Finished Product Functional Test Life Data (periodic functional check records)
For the complete ETENWOLF inflation tools range, visit the ETENWOLF product catalogue.