MXP SERIES NAUTICAL CYLINDERS
Grices MXP Series Marine Hydraulic Cylinders are the ideal solution for standard marine applications. Manufactured with an AISI 316 stainless-steel piston rod and tube and chrome-plated OT58 brass end caps, they ensure complete resistance to corrosion. The rear-pin hydraulic supply design eliminates external pipes, ensuring a clean and streamlined appearance. Designed for a nominal pressure of 12 MPa and a maximum pressure of 16 MPa, they support strokes of up to 1000 mm. The available product codes are: MXP 40, MXP 50.
Grices MXP Series Marine Hydraulic Cylinders are part of the manufacturer’s standard marine product range, offering a high-quality engineering solution for the marine sector. These actuators are designed to maximise product reliability and durability over time. High quality standards are ensured through strict inspections throughout the production cycle, the use of state-of-the-art manufacturing equipment and rigorous hydraulic testing carried out on 100% of the cylinders manufactured.
Marine environments require specific construction solutions to prevent the chemical and physical deterioration of components. For this reason, the materials used in Grices MXP Series Marine Hydraulic Cylinders have been carefully selected to ensure complete resistance to corrosion. Critical components such as the tube (part 2), ground piston rod (part 4) and ground pin (part 5) are manufactured entirely from AISI 316 stainless steel. To balance structural performance, the rear end cap (part 1) and front end cap (part 3) are made of chrome-plated OT58 brass.
One of the main innovations of this series is its hydraulic flow management system. The cylinders feature a hydraulic supply system integrated directly into the rear pin. This technical architecture completely eliminates conventional external hydraulic pipes, making the application particularly suitable for marine installations requiring clean lines and a compact, streamlined design. The system also includes dedicated installation options, such as STP mounting brackets specifically designed to securely anchor the cylinder to the vessel’s transom.
In terms of hydraulic performance, the cylinders are designed to operate safely at a nominal pressure of 12 MPa under continuous operating conditions. The structure can easily withstand operating peaks of up to a maximum pressure of 16 MPa. The internal construction includes bore sizes ranging from 40 to 50 mm, combined with customisable operating strokes of up to 1000 mm. Volumetric efficiency is maintained through the use of a premium sealing system. The seals, manufactured from elastomer combined with nitrile, provide excellent sealing performance. Supplied exclusively by leading international manufacturers, these seals ensure not only high operating performance but also quick and easy worldwide availability for routine and extraordinary maintenance operations.
For correct component identification and ordering, the manufacturer has defined a precise coding system: the model code must be followed by the stroke length expressed in millimetres. An example of the standard coding format is “MXP 40/500”, identifying the version with a 40 mm bore and a 500 mm operating stroke. The range is divided into two main models:
MXP 40 model: Features a 40 mm bore (AL), 1/8″ hydraulic ports (EL), an 87 mm TC dimension and a total length (TL) of 117 mm.
MXP 50 model: Features a 50 mm bore (AL), 1/8″ hydraulic ports (EL), a 98 mm TC dimension and a total length (TL) of 128 mm. Both versions share a 28 mm piston rod diameter (MM), an M20x1.5 piston rod thread (KK) and a 12 mm WH dimension.
| Feature | Value |
|---|---|
| Nominal Pressure (continuous operation) | 12 MPa |
| Maximum Pressure | 16 MPa |
| Bore Size | 40 – 50 mm |
| Maximum Stroke | Up to 1000 mm |
| Tube, Piston Rod and Pin Material | AISI 316 stainless steel |
| End-Cap Material (Front and Rear) | Chrome-plated OT58 brass |
| Seal Type | Elastomer + Nitrile |
| Hydraulic Supply System | Through the rear pin (no external pipes) |
| Mounting Options | STP mounting brackets (for transom installation) |
| Model | Bore Size (AL) | Piston Rod Diameter (MM) | Thread (KK) | Ports (EL) | Total Length (TL) |
|---|---|---|---|---|---|
| MXP 40 | 40 mm | 28 mm | M20x1.5 | 1/8″ | 117 mm |
| MXP 50 | 50 mm | 28 mm | M20x1.5 | 1/8″ | 128 mm |