Mobile Box-Type Oil Filter – Portable, Precise, Reliable System Protection

Product Description (Updated)

Outdoor Mobile Box-Type Oil Filter is a versatile, self-contained filtration unit engineered for 

high-efficiency fluid purification in hydraulic and lubrication systems. Designed with user-configurable 

filtration precision (selectable based on application requirements), this unit accommodates a wide range of media, 

including hydraulic oil, lubricating oil, water-glycol fluids, phosphate ester fire-resistant oils, 

and other compatible industrial liquids.

This mobile filter serves dual purposes: it can be used for new oil filling and filtration during system

 commissioning, as well as a regular offline filtration device for ongoing maintenance. 

By effectively removing particulate contaminants and moisture, it significantly reduces system pollution levels,

 extends the service life of hydraulic components, and ensures reliable, uninterrupted system 

operation even in demanding outdoor environments.

The fully enclosed box-type design protects all internal components from weather, dust, 

and mechanical damage, making it ideal for mobile use across construction sites, industrial plants, 

and field service applications.

Structural Features

1. Fully Enclosed Body – Neat, robust, and aesthetically designed to protect all internal components 

from environmental exposure and accidental damage.

2. Dual-Stage Fine Filtration – Equipped with primary and secondary filter stages to meet higher filtration 

accuracy requirements and extend element service life.

3. Flexible Motor Options – Motor selection can be tailored to operating conditions; explosion-proof 

motors are available for hazardous or flammable environments.

4. Optional Integrated Tank – The unit can be equipped with a built-in reservoir tank, with capacity

 options available to suit specific application needs.

5. Comprehensive Protection – Integrated thermal overload relay and overflow protection devices 

safeguard both the equipment and the operator against abnormal operating conditions.

Applications

1. Oil Filling Filtration – Purifying new oil during initial system filling or top-up operations.

2. Bypass Filtration – Operating as a parallel filtration loop while the hydraulic/lubrication system is in normal service.

3. Pre-Commissioning Circulation – Circulating and cleaning the system fluid before the hydraulic/lubrication 

system is put into formal operation.

4. System Cleanliness Upgrade – Connecting as an auxiliary filtration module to continuously improve and 

maintain the system's target cleanliness level.

FAQ

Q1: What filtration precision can this unit achieve?

A: The filtration precision is selectable based on user requirements, typically ranging from 3 μm to 20 μm

 (absolute or nominal). Dual-stage design allows for coarse and fine filtration in sequence.

Q2: What types of fluids can this filter handle?

A: It is compatible with mineral hydraulic oils, synthetic lubricating oils, water-glycol fluids, phosphate ester

 fire-resistant fluids, and most industrial petrochemical-based liquids. For aggressive or specialty fluids, 

please consult our technical team.

Q3: Is the unit suitable for outdoor use in all weather conditions?

A: Yes. The fully enclosed box-type body provides protection against rain, dust, and UV exposure. 

For extreme cold environments, optional heating elements are available.

Q4: What is the flow rate capacity of this mobile filter?

A: Standard models are available with flow capacities ranging from 20 L/min to 200 L/min. Custom 

flow rates can be accommodated upon request.

Q5: How do I choose between a standard motor and an explosion-proof motor?

A: If the unit will be used in environments with flammable gases, vapors, or dust (e.g., chemical plants, 

oil refineries, mining), an explosion-proof motor is mandatory. For general industrial or outdoor construction sites, 

a standard motor is typically sufficient.

Q6: How often should the filter elements be replaced?

A: Replacement intervals depend on the contaminant load and operating hours. 

We recommend monitoring the differential pressure gauges on each filter stage – replace the elements 

when ΔP reaches the manufacturer's recommended change-out value.

Q7: Does the built-in tank option increase the overall dimensions significantly?

A: The integrated tank is designed to fit within the compact box frame with minimal increase in footprint. 

Tank capacity options are optimized to balance portability and filtration efficiency.

Q8: What safety features are included?

A: The unit is equipped with a thermal overload relay to prevent motor burnout and an overflow protection 

device to prevent overpressure. Optional emergency stop buttons and pressure relief valves are also available.

Q9: Can this unit be moved easily by one person?

A: Yes. The mobile design includes heavy-duty casters (with locking brakes) and ergonomic push/pull handles, 

allowing easy maneuverability by a single operator on level surfaces.

Q10: Is this unit suitable for continuous 24/7 operation?

A: Yes, the unit is designed for continuous duty. However, regular maintenance (element replacement, 

seal inspection) should be performed according to the provided schedule to ensure long-term reliability.

Product Details