

Part 441-312 Hydraulic Cylinder is a precision-machined hydraulic component designed for Hydra M and Hydra Pro Super series equipment. This cylinder converts hydraulic fluid pressure into linear mechanical force, driving the pumping action for material delivery. Replacing a worn, scored, or leaking hydraulic cylinder restores proper system pressure, eliminates bypass, and ensures reliable equipment performance.
| Part Number | 441-312 |
|---|---|
| Part Description | Hydraulic Cylinder |
| Brand | Hydra |
| Fits | Hydra M, Hydra Pro Super |
| Condition | New |
The 441-312 Hydraulic Cylinder is a precision-machined component that forms the core of the hydraulic system in Hydra M and Hydra Pro Super series equipment. This cylinder houses the piston and contains hydraulic fluid under pressure, converting fluid power into linear mechanical force that drives the material pump.
Over time, hydraulic cylinders can develop internal scoring from contamination, wear at sealing surfaces, or external damage from impact. A compromised cylinder can lead to internal bypass, loss of pressure, reduced pumping efficiency, and external fluid leaks. Replacing with this new hydraulic cylinder restores proper system pressure and ensures reliable operation.
| Linear force generation | Converts hydraulic pressure into mechanical force |
|---|---|
| Fluid containment | Encloses hydraulic fluid under operating pressure |
| Piston guidance | Provides precision bore for piston movement |
| Mounting structure | Serves as mounting point for hydraulic system components |
| Internal scoring | Bore surface has grooves or damage |
|---|---|
| External leaks | Fluid escaping from cylinder body or ends |
| Pressure loss | Unable to maintain system pressure |
| Visible damage | Cracks, dents, or deformation of cylinder |
This hydraulic cylinder is designed for the following models. Always verify your equipment's parts diagram to ensure correct fit and application.
| Brand / Model | Component |
|---|---|
| Hydra M | Hydraulic cylinder |
| Hydra Pro Super | Hydraulic cylinder |
When replacing the hydraulic cylinder, these associated components are often inspected or replaced at the same time.
Inspect piston for wear or damage; replace if scored.
Replace all cylinder seals during installation.
Replace hydraulic fluid if contamination is suspected.