What are Bosch Rexroth hydraulic aggregates and in which industrial applications are they primarily used?

Bosch Rexroth hydraulic aggregates are complete power units that generate pressurized hydraulic fluid for industrial machinery systems, combining pumps, motors, reservoirs, and control components in integrated packages. These aggregates serve as the central power source in manufacturing automation, heavy construction equipment, material handling systems, and machine tool operations where precise fluid control and consistent pressure delivery are essential. The units enable controlled actuation of cylinders, motors, and valves across diverse industrial sectors including automotive production, steel processing, and mobile machinery applications.

What are the key technical selection criteria for Bosch Rexroth hydraulic aggregates?

Selection of Bosch Rexroth hydraulic aggregates depends primarily on maximum operating pressure requirements, with models like the HM 20-2X series available in pressure ranges from 250 bar to 400 bar configurations. Flow rate capacity, reservoir volume, and motor power specifications must align with the hydraulic system's total fluid demand and cycle frequency. Critical selection parameters include ambient temperature range, fluid compatibility with seal materials such as NBR or FKM compounds as seen in the AGEV1 and HAB series seal kits, and electrical supply voltage requirements typically ranging from 24V DC to 400V AC three-phase systems.

Which international standards and certifications apply to Bosch Rexroth hydraulic aggregates?

Bosch Rexroth hydraulic aggregates comply with ISO 4413 for hydraulic fluid power systems and components, ensuring safe design practices and pressure vessel requirements. The pressure measurement components like the HM 20-2X transmitters meet IEC 61000 electromagnetic compatibility standards and IP65 ingress protection ratings for industrial environments. ATEX certification applies to aggregates used in potentially explosive atmospheres, while CE marking confirms compliance with European Machinery Directive 2006/42/EC and Pressure Equipment Directive 2014/68/EU for systems exceeding 0.5 bar operating pressure.

What are the main differences between Bosch Rexroth aggregate product variants?

The primary variants differ in pressure sensor configurations, with HM 20-2X models available in 250 bar, 315 bar, and 400 bar maximum pressure ranges, designated by suffix codes like 250-C-K35-N or 400-H-K35-N indicating output signal types. Seal kit variants such as AGEV1 series accommodate different bore sizes from 28463 to 36067 millimeters, while material specifications vary between NBR and FKM elastomers for different fluid compatibility requirements. The HAB series seal kits distinguish between HAB4-2X and HAB10-50-2X configurations, indicating different cylinder bore diameters and stroke lengths for specific actuator applications.

What are the installation requirements and system compatibility considerations for Bosch Rexroth hydraulic aggregates?

Bosch Rexroth hydraulic aggregates require foundation mounting with vibration isolation pads and minimum clearances of 500mm around the unit for service access and heat dissipation. System compatibility depends on hydraulic fluid specifications, typically ISO VG 32 or VG 46 hydraulic oils, with filtration requirements meeting ISO 4406 cleanliness class 20/18/15 or better for optimal component life. Connection types include standard SAE or DIN threaded ports for pressure and return lines, with electrical connections requiring IP54 rated junction boxes and proper earthing according to IEC 60204-1 electrical safety standards for industrial machinery.

What safety ratings and operating parameters apply to Bosch Rexroth hydraulic aggregates?

Bosch Rexroth hydraulic aggregates typically operate within ambient temperatures from -20°C to +80°C with hydraulic fluid temperatures maintained between +10°C and +80°C for optimal viscosity characteristics. The pressure measurement components achieve IP65 ingress protection ratings suitable for industrial washdown environments, while electrical components meet IP54 minimum protection standards. Maximum operating pressures range from 250 bar to 400 bar depending on model specification, with safety relief valve settings typically configured at 110% of maximum working pressure according to ISO 4413 safety requirements for hydraulic systems.

What maintenance schedules and service life expectations apply to Bosch Rexroth hydraulic aggregates?

Bosch Rexroth hydraulic aggregates require hydraulic fluid changes every 2000 operating hours or annually, whichever occurs first, with filter element replacement at 1000-hour intervals to maintain ISO 4406 cleanliness standards. Seal kit replacements like the AGEV1 and HAB series components typically occur every 8000-10000 operating hours or when leakage exceeds 5ml per hour, depending on operating pressure and temperature conditions. Pressure transmitter calibration verification should be performed annually using calibrated test equipment traceable to national standards, with expected service life exceeding 20 years under normal industrial operating conditions when proper maintenance schedules are followed.

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Explore Premium Hydraulic Aggregates from Bosch Rexroth

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