Bosch Rexroth R928006678 Hydraulic Filter Element

Overview

The Bosch Rexroth R928006678 is a hydraulic filter element from the Rexroth Industrial Hydraulics filtration programme, used to trap contamination in hydraulic fluid before it can damage pumps, valves, and cylinders downstream. Rexroth filter elements in this series are built across a range of housing sizes (0040 through 1000) and pressure differential ratings (30 bar, 160 bar, or 330 bar), with filtration ratings starting from 1 µm absolute, allowing a single element family to cover everything from return-line filtration to high-pressure in-line duty depending on the exact order code specified.

Seven Star LLC supplies the Bosch Rexroth R928006678 filter element as an authorized-partner channel to hydraulic equipment operators across Oman and the GCC, supporting industrial plants, marine hydraulics, and mobile equipment fleets that run Rexroth filtration hardware. Because Rexroth filter elements are ordered against a precise housing, micron rating, and differential pressure combination, our engineering team can help cross-reference an existing filter housing’s nameplate or an old element’s part number to confirm the correct R928006678 replacement before ordering.

Measurement and Operating Principle

The R928006678 element works as a depth or surface filtration medium mounted inside a Rexroth filter housing in the hydraulic circuit, most commonly in a return line, pressure line, or off-line filtration loop. As hydraulic fluid passes through the element’s filter media – glass fibre non-woven media, filter paper, wire mesh, or non-woven fabric depending on the specific variant – particulate contamination above the rated micron size is captured within the media structure while clean fluid passes through to the downstream circuit.

Rexroth’s non-woven glass fibre media, the most common construction in this filter element range, provides defined retention capacity in accordance with ISO 16889 multi-pass testing, meaning the element’s contamination removal performance at a given micron rating is independently verified rather than a nominal estimate. This lets hydraulic system designers specify a target fluid cleanliness class (commonly expressed to ISO 4406, such as 18/16/13 or tighter) and select the R928006678 or an equivalent element in the family with confidence that it will deliver that cleanliness level in service.

Engineering Design

Rexroth filter elements in the R928006678 family are constructed with zinc-free components, which prevents the formation of zinc-soap deposits when the hydraulic system uses water-containing fluids or certain synthetic and biodegradable oils – a common requirement on construction and agricultural machinery that specify rapidly biodegradable hydraulic fluids. Zinc-free construction also reduces the risk of premature element blocking and extends practical service life between change-outs compared to elements using zinc-based end-cap bonding.

Depending on the exact configuration, the R928006678 is rated for pressure differential collapse ratings up to 30, 160, or 330 bar, giving it mechanical integrity across return-line, medium-pressure, and high-pressure in-line filtration duty. Multi-layer media construction increases dirt-holding capacity relative to single-layer designs, which extends the interval between element changes and reduces unplanned filter-related downtime on hydraulic power units and mobile machinery alike.

Bosch Rexroth R928006678 Key Features

• Bosch Rexroth R928006678 filter element traps hydraulic fluid contamination to protect downstream pumps, valves, and cylinders
• Filtration ratings starting from 1 µm absolute for fine particulate removal
• Pressure differential ratings up to 30, 160, or 330 bar depending on configuration
• Zinc-free construction prevents zinc-soap deposits with water-based and biodegradable fluids
• Multi-layer non-woven glass fibre media delivers high dirt-holding capacity
• Retention performance independently verified to ISO 16889 multi-pass testing
• Compatible with the standard Rexroth filter housing range from size 0040 to 1000
• Supports target fluid cleanliness classes to ISO 4406 for sensitive hydraulic components

Industrial Applications for the Bosch Rexroth R928006678

The Bosch Rexroth R928006678 filter element is used across mobile hydraulics, industrial hydraulic power units, marine deck machinery, and process plant hydraulic systems wherever Rexroth filter housings are already installed. It is a routine maintenance and overhaul item, replaced on a scheduled basis or whenever a differential pressure indicator signals the element has reached its dirt-holding capacity.

Seven Star LLC, as an authorized Bosch Rexroth partner serving Oman and the wider GCC, supplies genuine R928006678 filter elements to hydraulic maintenance teams in Muscat, Sohar, Duqm, and Salalah supporting refinery hydraulic power units, port cranes, and heavy mobile equipment fleets. Our team can help confirm the correct micron rating and pressure class against your existing housing before shipment to avoid a mismatched replacement.

Bosch Rexroth R928006678 Technical Specifications

Request a Quote

Contact Seven Star LLC for pricing and stock availability on the Bosch Rexroth R928006678 hydraulic filter element for your hydraulic maintenance program in Oman and the GCC.

Seven Star LLC keeps the Bosch Rexroth R928006678 in its standard quoted range for Oman-based hydraulic maintenance teams needing fast-turnaround filter element replacements.