STEP stands for Step Seal. It is a type of hydraulic seal that is designed to provide a high level of sealing performance in harsh environments. STEP seals are typically made of a combination of nitrile rubber and PTFE (polytetrafluoroethylene). The PTFE provides a durable and low-friction sealing surface, while the nitrile rubber provides flexibility and resistance to oil and grease.

STEP seals are typically used in hydraulic cylinders and other hydraulic components that are subjected to high pressures, temperatures, and speeds. They are also used in applications where the seal is exposed to dirt, dust, and other contaminants.

Here are some of the technical specifications of STEP hydraulic seals:

• Material: Nitrile rubber and PTFE
• Temperature range: -40°C to +100°C (-40°F to +212°F)
• Pressure range: 0 to 50 MPa (0 to 7250 psi)
• Speed: Up to 20 m/s (66 ft/s)

STEP seals are used in a variety of construction machinery applications, including:

• Excavators
• Bulldozers
• Backhoes
• Wheel loaders
• Skid steer loaders
• Cranes
• Concrete mixers
• Asphalt pavers

STEP seals offer the following benefits:

• Excellent sealing performance
• Resistant to wear and tear
• Suitable for use in a wide range of hydraulic applications
• Long service life
• Can withstand high pressures, temperatures, and speeds