Why standard glands fail in high-pressure systems?
In hydraulic systems operating at 300–350 bar, failures rarely start in obvious components. One of the most critical weak points is the gland (rod sealing housing).
Typical problems include:
- deformation under load (“swelling”),
- seal package instability,
- rod misalignment,
- premature seal wear.
These issues lead directly to:
- leakage,
- downtime,
- costly repairs.
TGH Steel Gland – designed for high-load conditions
The TGH series steel gland is engineered specifically to eliminate these failure points in high-pressure applications.
Unlike standard cast iron components, it uses high-strength steel, providing significantly better structural stability.
Key advantages of TGH series
1. Resistance to deformation and material fatigue
At pressures up to 350 bar, forces acting on the cylinder head are extremely high.
Steel provides:
- higher yield strength than cast iron,
- resistance to cyclic loading,
- dimensional stability over time.
In practice:
The gland does not deform, preventing seal failure and rod jamming.
2. Safety under pressure spikes
Hydraulic shock and pressure peaks are common in:
- construction machinery,
- hydraulic presses,
- heavy-duty systems.
These spikes are the real stress test.
TGH advantage:
- absorbs pressure peaks,
- reduces risk of cracking,
- minimizes sudden failures and oil leaks.
3. Seal performance and service life
Seal effectiveness depends on geometry stability.
Steel ensures:
- consistent seal groove dimensions,
- uniform seal loading,
- reduced asymmetric wear.
Result:
- longer service intervals,
- lower maintenance costs,
- higher system reliability.
Where TGH glands are used
TGH series is designed for demanding applications:
- construction machinery (excavators, loaders),
- hydraulic presses (continuous operation),
- heavy industry,
- mining and extraction equipment.
Summary
In high-pressure hydraulics, the gland is not a secondary component — it directly affects system reliability.
The TGH steel gland addresses the main causes of failure:
- deformation,
- pressure spikes,
- seal degradation.
If your system operates near 350 bar, using standard solutions is often the real risk.