ETENWOLF S5 Tire Inflator Thermal Rise Test Report (35–40 psi Load, Full Discharge)

Document Overview

Key Findings Both S5 samples completed a full-discharge thermal run at 35–40 psi and remained within safe operating temperature ranges, with the cylinder junction recording the highest thermal rise of 44.8 K on sample 8#. Test Type: Reliability Test — Thermal Rise Standard: Internal standard…

Document type

Certification Report

Prepared by

Daniel Wright

Published

July 22, 2026

Last reviewed

July 22, 2026

Topics

Environmental Testing

Key Findings

Both S5 samples completed a full-discharge thermal run at 35–40 psi and remained within safe operating temperature ranges, with the cylinder junction recording the highest thermal rise of 44.8 K on sample 8#.

• Test Type: Reliability Test — Thermal Rise
• Standard: Internal standard (performance stability evaluation)
• Samples: 2 pcs — S5-8# and S5-9#
• Load Condition: 35–40 psi continuous until battery depleted
• Peak Temperature (S5-8#): 73.7 °C at cylinder junction
• Peak Temperature (S5-9#): 69.2 °C at cylinder junction
• Ambient Temperature: 28.9 °C
• Verdict: For reference only (供参考)

Test Overview

Test Equipment & Setup

Test Procedure

1. Pre-test: Confirm ambient indoor temperature and record baseline. Verify samples S5-8# and S5-9# are fully charged and in normal operating condition. Attach Type-K thermocouples to all four measurement points: motor, battery, cylinder junction, and hose tail.
2. Setup: Connect each sample to a pressure load of 35–40 psi.
3. Run: Power on each sample and allow it to operate continuously under the specified load.
4. Data collection: Record temperature readings at all measurement points at regular intervals throughout the run (see sibling sheet: Temperature Rise Collection Data).
5. End condition: Test concludes when the battery is fully depleted and the unit shuts down.
6. Post-test: Record peak temperatures and calculate thermal rise (ΔT in K) for each measurement point by subtracting the ambient temperature from the peak reading.
7. Acceptance criteria: Evaluate performance stability of temperature variation; result categorized as Pass, Fail, or For Reference Only per internal standard.

Test Data & Results

Observations: The cylinder junction consistently recorded the highest temperatures on both samples, reaching 73.7 °C (ΔT 44.8 K) on S5-8# and 69.2 °C (ΔT 40.3 K) on S5-9#. Motor and battery temperatures remained moderate. Hose tail temperatures were similar across both units (~50 °C). The inter-sample variation at the cylinder junction was 4.5 K, indicating reasonable unit-to-unit consistency. Full time-series data is available in the sibling sheet: Temperature Rise Collection Data (温升采集变化数据).

Conclusion

Document Information

Frequently Asked Questions

What does the thermal rise test measure on the ETENWOLF S5 tire inflator?

The thermal rise test measures peak temperatures and temperature increase (in Kelvin) at four key points — the motor, battery, cylinder junction, and hose tail — while the S5 runs continuously under a 35–40 psi load until the battery is fully depleted. It evaluates the unit’s thermal stability and heat dissipation performance under real operating stress.

What was the highest temperature recorded during the S5 thermal test?

The highest temperature was 73.7 °C, recorded at the cylinder junction of sample S5-8#, representing a thermal rise of 44.8 K above the ambient temperature of 28.9 °C. Sample S5-9# reached 69.2 °C at the same location, a rise of 40.3 K.

Why is the S5 thermal test result listed as “For Reference Only” rather than Pass or Fail?

The test was conducted against an internal standard focused on characterizing temperature variation performance stability rather than enforcing a specific pass/fail threshold. The “For Reference Only” designation means the data serves as a baseline thermal profile for the S5 platform and informs future design and safety evaluations, rather than constituting a certification outcome.

Where can I find the full time-series temperature data for the S5 thermal test?

The complete temperature collection data recorded at intervals throughout each run is available in the companion sheet, Temperature Rise Collection Data (温升采集变化数据), which is part of the same test report file.

Related Products

Explore the full ETENWOLF Zephyr S5 Tire Inflator product page for specifications, features, and purchasing information.

This thermal report is one of two sheets in the S5 thermal test file. The companion sheet contains the complete interval-by-interval temperature readings captured during both test runs:

• Temperature Rise Collection Data (温升采集变化数据) — Full time-series thermal data for S5-8# and S5-9# across all measurement points

For the broader ETENWOLF inflation tools range, visit the ETENWOLF product lineup.