Steel Barrel Airtight Tester

This automatic drum leak testing machine delivers high inspection efficiency with a fast 3–5-second single-drum testing cycle, supporting line speeds of 350–900 drums per hour for mass continuous production. It achieves superior detection precision, identifying tiny leaks down to φ0.03 mm with a 0.5% F.S. accurate pressure sensor to cut false detection rates. Multiple test modes including positive pressure, vacuum chamber, water immersion and helium mass spectrometry are configurable to match varied sensitivity and standard demands. Equipped with PLC/PC touchscreen control, it visualizes real-time pressure-time curves and archives exportable, printable test data for full quality traceability. Highly compatible with 30–250 L open/tight-head, round/square steel and plastic drums, the unit offers explosion-proof variants for hazardous sites, plus overpressure and emergency stop safeguards to avoid workpiece damage. Fully compliant with GB/T, ISO and UN dangerous goods transport standards for easy export certification, it features modular wear-part replacement, one-touch operation and compact bench-top sizing for simple daily use and maintenance.

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Product Overview

Our Steel Barrel Airtight Tester, also called steel Drum Leak Detector or seal integrity tester, is dedicated testing equipment for verifying the sealing performance and pressure resistance of metal barrels. Airtight inspection is a compulsory full-check procedure for every finished steel drum during mass manufacturing, with the qualified leak rate capped at 1‰. This machine fills drums with compressed air or other testing media, then judges product qualification by tracking internal pressure drop or capturing escaping gas.

We support four mainstream customizable testing solutions to fit different inspection standards and sensitivity demands. The standard positive pressure method tracks pressure attenuation after air inflation for routine batch inspection. The water immersion bubble method submerges pressurized barrels to visually pinpoint exact leak spots. The vacuum chamber approach detects gas outflow by creating a negative-pressure enclosed environment around the drum. For ultra-precise micro-leak detection, the helium tracer gas method paired with a mass spectrometer delivers the highest testing accuracy, ideal for high-standard export-grade steel drum production.

Steel Barrel Airtight Tester

General Specifications

Parameter Name	Technical Specification Range
Applicable Drum Types	Open-head drums, tight-head drums, round drums, square drums
Applicable Volume Capacity	30–250 liters (standard configuration for 200 liters / 55 gallons)
Available Testing Methods	Positive pressure method, vacuum chamber method, water immersion method
Working Pressure Range	0–500 kPa (standard); 0–200 kPa (light-duty model); maximum 1 MPa (custom-made)
Pressure Measurement Accuracy	±0.5% F.S. or ±1 kPa
Test Medium	Compressed air; external air source required: 0.4–0.9 MPa
Power Supply	AC 220V 50Hz (customizable to 110V/60Hz)
Equipment Weight	Benchtop unit: about 8–20 kg; production in-line unit: 250–2000 kg

Why Choose LISHEN Machinery

As a professional integrated manufacturer of steel drum and gas cylinder processing equipment with over 15 years of industry experience, LISHEN Machinery stands out as your reliable long-term partner for metal packaging production lines worldwide. We own a full independent factory equipped with CNC precision machining workshops, complete quality inspection labs and professional R&D teams, eliminating middlemen to deliver factory-direct cost-effective machinery with stable lead times. All our equipment complies with ISO, CE, GB and UN dangerous goods transport standards, fully supporting global export certification for clients across Southeast Asia, the Middle East, Africa and Europe. We provide flexible customized solutions: from single standalone testers and power presses to full turnkey automated production lines, we adjust technical parameters, sizes and control systems to match your drum or cylinder specifications and production capacity targets. Every machine undergoes strict full-load aging testing before delivery to guarantee high precision, stable running performance and low failure rates during continuous mass production. Beyond premium hardware, we deliver all-round after-sales support including pre-shipment technical training, overseas installation & commissioning, remote online troubleshooting, 12–24 month warranty and lifetime spare parts supply. Our engineering team optimizes modular structures for easy daily maintenance, helping you cut long-term operational and labor costs. With thousands of successful production line cases globally, we combine mature technology, competitive pricing and responsive global service to maximize your production efficiency and product qualification rate, making LISHEN Machinery the ideal supplier for your metal container manufacturing business.