Rexroth Pneumatics/Hydraulics

Aventics Rexroth pneumatic and hydraulic systems are precision fluid power components designed for industrial automation and control applications. These systems combine pneumatic air-powered actuators operating at standard pressures of 6-10 bar with hydraulic components capable of generating forces up to 350 bar for heavy-duty applications. Primary applications include automotive assembly lines, packaging machinery, materials handling systems, and process automation in chemical and pharmaceutical industries where reliable linear and rotary motion control is essential.

Engineers must evaluate operating pressure requirements typically ranging from 2-16 bar for pneumatic systems, cylinder bore sizes from 12mm to 320mm depending on force requirements, and stroke lengths up to 2000mm for linear actuators. Connection specifications include standard port sizes G1/8 to G1 threading per ISO 228, media compatibility with compressed air quality per ISO 8573-1 Class 2:4:3, and ambient temperature ratings from -20°C to +80°C. Flow rates and response times must align with cycle requirements, particularly for high-speed packaging applications demanding sub-second actuation cycles.

Aventics Rexroth systems comply with ISO 5598 for fluid power system terminology, ISO 4414 for pneumatic system safety requirements, and ISO 4413 for hydraulic system safety standards. Components meet CE marking requirements under Machinery Directive 2006/42/EC and Pressure Equipment Directive 2014/68/EU for pressurized systems. ATEX certification per Directive 2014/34/EU is available for explosive atmosphere applications, while IP65 protection rating per IEC 60529 ensures dust and water resistance in harsh industrial environments.

Aventics pneumatic components vary primarily in cylinder bore diameter, stroke length, and mounting configuration to match specific application requirements. Standard variants include compact cylinders with 12-63mm bore diameters for light-duty applications, medium-duty cylinders from 32-125mm bores for general automation, and heavy-duty variants up to 320mm bore for high-force applications requiring over 10kN thrust. Mounting options range from ISO 15552 standard tie-rod designs to ISO 21287 compact series with integrated position sensing and ISO 6432 miniature cylinders for space-constrained installations.

Aventics Rexroth components require compressed air supply filtered to ISO 8573-1 Class 2:4:3 with maximum particle size 5μm, pressure dew point -40°C, and oil content below 1mg/m³. Installation demands include minimum bend radii of 5x tube diameter for polyurethane tubing, torque specifications of 15-25 Nm for G1/4 fittings per DIN 3852, and vibration isolation for frequencies above 50Hz. System compatibility extends to major fieldbus protocols including PROFIBUS-DP, DeviceNet, and IO-Link for integrated position feedback and diagnostic capabilities in Industry 4.0 applications.

Aventics Rexroth systems achieve IP65 protection rating per IEC 60529 standard against dust ingress and water jets, with optional IP67 rating for wash-down applications in food processing environments. Operating temperature range spans -20°C to +80°C for standard seals, extending to -40°C to +150°C with specialized fluorocarbon seals for extreme conditions. Maximum working pressure reaches 16 bar for pneumatic circuits with safety factor 4:1 per ISO 4414, while hydraulic variants operate up to 350 bar with burst pressure ratings exceeding 1400 bar for critical safety applications.

Aventics pneumatic systems require filter element replacement every 8000-12000 operating hours or annually depending on air quality conditions per ISO 8573-1 standards, with automatic drain valve service every 2000 hours in high-humidity environments. Cylinder seals typically achieve 10-20 million cycles at rated pressure before replacement, with inspection recommended every 6 months for critical applications. Preventive maintenance includes monthly pressure regulator calibration verification, quarterly compressed air quality testing for particle count and oil content, and annual system pressure testing at 1.5x working pressure to validate safety integrity per ISO 4414 requirements.