July 2026 - Jingcheng Engineering Airtightness

Dual-Channel Air Leak Tester for Blowers

Dual-Channel Blower Leak Tester: Independent dual channels paired with […]

Safety Valve Tester – Single-Channel – Breathing Valves, Safety Valves 2

Battery Pack Safety Valve Tester

Battery Pack Safety Valve Tester: Safety valves for new energy battery packs to

Q&A: Why Are Overseas Customers Increasingly Preferring Chinese Leak Tester? Decoding the Core Logic Behind the Global Expansion of Domestic Equipment

This article discusses the accelerating global expansion of China’s precision testing equipment, with air-tightness testing equipment emerging as a new focus. Through technological upgrades, efficient delivery, flexible collaboration models, and cost-effectiveness, the domestic manufacturer JCGK has transitioned from “substitute procurement” to “systematic services” in overseas markets such as Mexico and India, earning recognition for its global competitiveness.

Jingcheng Engineering’s Field Tests Reveal: How Accurate Is the Repeatability of Direct-Pressure Leak Testers?

This article addresses the scenario of 100% inspection on production lines in the airtightness testing industry, emphasizing that repeatability is more critical than accuracy. Based on 11 consecutive sets of actual measurement data from the JCGK Direct-Pressure Airtightness Tester by Jingcheng Engineering, the study verifies that its leakage values remain stable at 6–7 Pa, with fluctuations of only ±1 Pa. The paper analyzes the three key technological pillars supporting this performance—high-precision sensors, proprietary gas path control, and temperature drift compensation algorithms—and concludes with recommendations for selecting the appropriate model for different pressure scenarios.

Direct Pressure_Single Channel_Die-Cast Parts 10

Engine Die-Cast Pump Housing Leak Tester

Engine Die-Cast Pump Housing Leak Tester: Automotive Parts Leak