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The GS Series (GS-1650 / GS-1750) Leak Test Machine is a high-efficiency detection equipment designed to identify cracks and leaks in engine cylinder heads and blocks. It works by immersing the workpiece in hot water to simulate the engine's actual operating temperature and pressure conditions.
This machine integrates pneumatic, electrical, and hydraulic systems to deliver reliable performance. A standout feature is the infinite flip bracket (360° rotary fixture) driven by a hydraulic system, which allows the operator to rotate the submerged cylinder head effortlessly. This ensures that defects or air bubbles can be accurately spotted from any angle. It is an essential tool for engine rebuilding workshops to ensure the quality of castings before assembly.


Real-Condition Simulation: Equipped with powerful heating elements (2x 5.5KW) and a thermostat (0-92°C) to simulate the engine's thermal expansion state for accurate leak detection.
360° Hydraulic Rotation: The "infinite flip" fixture allows the workpiece to be rotated 360 degrees underwater, ensuring no blind spots during inspection.
High Efficiency: Hydraulic lifting and rotation significantly reduce labor intensity and speed up the testing process.
Versatile Application: Suitable for a wide range of cylinder heads and engine blocks (Specifications vary by model GS-1650/GS-1750).
Robust Control: Features precise pressure control and temperature regulation for consistent testing standards.


| Specification | Unit | GS-1650 | GS-1750 |
| Max. Head Capacity (Length) | mm / inch | 300 / 11.8 | 415 / 16.3 |
| Max. Head Capacity (Width) | mm / inch | 430 / 16.9 | 465 / 18.3 |
| Max. Head Capacity (Height) | mm / inch | 1450 / 57* | 1450 / 57* |
| Heating Elements | KW | 5.5 × 2 | 5.5 × 2 |
| Thermostat Range | °C | 0 - 92 | 0 - 92 |
| Gear Motor Power | KW | 0.37 | 0.37 |
| Pump Motor Power | KW | 0.75 | 0.75 |
| Rotational Speed | r/min | 4.5 | 4.5 |
| Power Supply | - | 380V / 50Hz / 3Ph | 380V / 50Hz / 3Ph |
| Space Requirements (L×W×H) | mm | 2300×1060×1750 | 2300×1200×1850 |
| Space Requirements (L×W×H) | inch | 90.5×41.7×68.8 | 90.5×47.2×72.8 |
| Packing Dimensions (L×W×H) | mm | 2450×1200×1330 | 2450×1200×1470 |
| Net Weight (Approx.) | kg / lbs | 610 / 1344 | 650 / 1433 |
