Offline Filtration Units for Construction Machinery
Offline filtration units pump and filter hydraulic oil independently of system operation using an integrated drive.
Flow rate, filtration rating, tank volume and application define the fit. Mobile filter units for filling, transfer and service differ in design and performance.
An offline filtration unit is a mobile filtration system for circulating, cleaning and transferring hydraulic oil.
The flow rate determines how often the full tank volume passes through the unit per hour.
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Mobile Filter Units for Filling, Circulation and Service
- Filling: filtration of new hydraulic oil during tank filling
- Transfer: pumping and cleaning oil between tanks or containers
- Service: mobile filtration during maintenance, flushing and commissioning
- Circulation: repeated flow through the tank volume to stabilize oil condition
Offline filtration units are standalone service systems, not filter components within the main hydraulic flow.
Flow Rate, Filtration Rating and Real Circulation Time
Flow rate and tank volume determine the actual cleaning time.
If the flow rate is too low, the oil is not circulated effectively. If the filtration rating is incorrect, contamination remains in the system.
Flow rate, filter element and tank volume must be matched.
24V, Electric Drive and Application Environment
24V filter units are used directly on machines and construction sites. Electrically driven units are typically used in workshops or stationary service environments.
Power supply and drive define the application. A 24V unit does not replace a stationary service unit and vice versa.
Transfer, Service and Repeated Filtration
Mobile offline filtration units are used for oil transfer, service operations and repeated filtration.
The key factor is whether the unit is designed for transfer, continuous circulation or repeated service use.
Typical Mismatches in Practice
- Flow rate: too low – insufficient circulation of tank volume
- Filtration rating: incorrect – contamination remains in oil
- Application: wrong unit for transfer, circulation or service
- Power supply: unit not suitable for the operating environment
- Size and mobility: unit not suitable for transport or site conditions
Mismatches lead to long cleaning times, unstable oil condition or a unit that cannot be operated effectively in practice.
Offline Filtration Units within the Filtration System
Offline filtration units are part of offline filtration and represent the mobile system within this category.
Related components include filter housings and filter elements.
They complement return filters and pressure filters but operate as independent mobile filtration systems.
Check Before Ordering
- Application: filling, transfer, circulation or service
- Tank volume and required flow rate
- Filtration rating and target oil condition
- Power supply / drive
- Mobility and application environment
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