Filter-Lubricator

XAC 1000-5000 Series 2-Element Pneumatic Air Source Treatment Unit

XG Series XGWL 2-Element Pneumatic Air Preparation Unit

XMA Series Metal Cup Pneumatic FR Unit (2-Element)

AFC & BFC Series 2-Element Pneumatic Air Preparation Units

S Series Pneumatic Filter Regulator Lubricator

Efficient Filter-Lubricator Combination Units

Streamline your pneumatic system with our high-performance filter-lubricator units. These compact devices combine essential air filtration with precise lubrication, delivering clean, conditioned, and lubricated air to protect your equipment, reduce wear, and ensure smooth, efficient operation.

Why Choose Our Filter-Lubricators ?

Dual-Action Efficiency

Combines effective particle and moisture filtration with precise oil mist lubrication in a single, integrated unit.

Space & Cost Saving

Reduces installation space and piping complexity compared to separate filter and lubricator units, lowering overall costs.

Extended Component Life

Provides clean and properly lubricated air, minimizing wear and tear on pneumatic cylinders, valves, and tools.

Understanding Filter-Lubricator Design

Integrated Air Preparation

A filter-lubricator unit is a two-piece combination that integrates an air filter and a mist lubricator into a single assembly. Air first passes through the filter section to remove solid particles and condensed water, then flows into the lubricator section where a fine oil mist is added to the airstream.

Key Components:

Filter Section: Includes a filter element (various micron ratings), a bowl for collecting condensate, and a drain mechanism (manual, semi-auto, or auto).
Lubricator Section: Consists of an oil reservoir (bowl), an oil pick-up tube, an adjustable oil drip-rate mechanism, and a sight dome to observe oil delivery.
Connecting Body: Joins the filter and lubricator components, often with modular connection capabilities.

Our Filter-Lubricator Technology Advantage

Efficient Filtration Media

High-performance filter elements ensure effective removal of contaminants with minimal pressure drop, maximizing airflow.

Precise Lubrication Control

Adjustable oil drip rate allows fine-tuning of lubrication to match the specific needs of downstream equipment, preventing over or under-lubrication.

Durable & Transparent Bowls

High-strength polycarbonate bowls for easy monitoring of condensate and oil levels, with metal bowl guards available for added protection.

Modular & Easy Maintenance

Modular design allows for easy connection with other air preparation units (like regulators) and simplifies element replacement and servicing.

Key Parameters for Selecting Filter-Lubricators

Port Size & Thread Type

E.g., G1/4, G3/8, G1/2, G3/4, G1, NPT options.

Filtration Rating (Micron)

Standard filtration levels (e.g., 5µm, 25µm, 40µm) for particulate removal.

Operating Pressure Range

Maximum and minimum inlet pressure for safe and effective operation.

Flow Rate Capacity

Maximum airflow the unit can handle (e.g., L/min, SCFM).

Oil Bowl Capacity

Volume of the lubricator oil reservoir (e.g., cm³, oz).

Recommended Lubricant

Type of oil suitable for the lubricator (e.g., ISO VG32 turbine oil).

Drain Type (Filter)

Manual, semi-automatic, or fully automatic drain for condensate removal.

Operating Temperature

Ambient and media temperature limits.

For detailed parameters, please refer to individual product manuals or consult our technical experts.

Typical Applications for Filter-Lubricators

Pneumatic Tools & Equipment

Protecting and lubricating air motors, impact wrenches, grinders, nail guns, and other air-powered tools.

Cylinder Actuation Systems

Providing clean and lubricated air to pneumatic cylinders that require oil mist lubrication for optimal performance and longevity.

Automated Assembly Lines

Ensuring reliable operation of pneumatic components in pick-and-place units, conveyors, and other assembly machinery.

General Manufacturing Machinery

Protecting pneumatic systems in textile machines, printing presses, woodworking equipment, and more.

Maintenance & Repair Workshops

Providing conditioned air for various air tools and equipment used in workshops and service centers.

Mobile Pneumatic Systems

Compact solution for air preparation on mobile equipment or temporary pneumatic setups.

Filter-Lubricator Installation & Maintenance

Installation Best Practices:

Install the unit as close as practical to the point of use, with the filter upstream of the lubricator.
Ensure correct airflow direction as indicated by arrows on the unit body.
Mount vertically with bowls down for proper filter drainage and lubricator oil pick-up.
Allow sufficient space below bowls for draining condensate and refilling oil.
Use appropriate fittings and thread sealant for secure, leak-free connections.

Routine Maintenance:

Filter: Regularly drain condensate. Replace the filter element when pressure drop becomes excessive or per schedule.
Lubricator: Monitor oil level in the bowl and refill with recommended lubricant before it runs empty. Adjust oil drip rate as needed for the application. Clean oil pick-up tube if clogged.
Bowls: Clean polycarbonate bowls with mild soapy water only; avoid solvents. Inspect for cracks or damage.
General: Check for air leaks and ensure all connections are tight.

Always de-pressurize the system before performing any maintenance on filter-lubricator units.

Filter-Lubricator FAQs

When should I use a filter-lubricator unit instead of separate components?

A combined filter-lubricator unit is ideal when:

Space is limited: They offer a more compact footprint than installing a separate filter and lubricator.
Simplified installation is desired: Fewer connections and less piping are required.
Cost-effectiveness is a factor: Often, a combination unit is more economical than purchasing and installing two separate devices.
Standard air preparation is needed: For general-purpose pneumatic tools and actuators that benefit from both filtration and oil mist lubrication.

However, if you need different filtration levels before and after a regulator, or if only some parts of your system require lubrication, separate components might offer more flexibility.

What type of oil should I use in the lubricator section?

It’s crucial to use the lubricant type recommended by the manufacturer of the filter-lubricator unit and the pneumatic components it will be supplying.

Typically, light mineral oils specifically designed for pneumatic systems are used, often around ISO VG32 viscosity. Using the wrong type of oil can:

Damage seals and O-rings in the lubricator and downstream components.
Cause improper atomization and oil delivery.
Lead to varnish or sludge buildup.

Always refer to the product documentation for compatible oil specifications. Do not mix different types of oils.

How do I adjust the oil drip rate on the lubricator?

Most lubricators have an adjustment knob or screw, often located near or on top of the sight dome (the transparent dome where you can see oil dripping).

Turning the knob/screw (usually counter-clockwise for more oil, clockwise for less) controls the amount of oil mixed with the airflow.
The ideal drip rate depends on the air consumption of the downstream equipment. A general starting point might be 1-2 drops per minute for every 10-20 SCFM (Standard Cubic Feet per Minute) of airflow, but this is highly application-dependent.
Observe the exhaust air from your pneumatic devices; a very light sheen of oil is usually sufficient. Excessive oil can lead to contamination and sluggish operation.

It’s best to start with a low drip rate and gradually increase it while monitoring the performance and lubrication needs of your equipment. Refer to the manufacturer’s guidelines.

Do all pneumatic components require lubrication from a filter-lubricator?

No, not all pneumatic components require or should receive oil mist lubrication.

Many modern pneumatic cylinders and valves are designed with self-lubricating materials or are “lubricated for life” with grease during manufacturing. Adding oil mist to these can sometimes wash out the factory grease and be detrimental.
Applications in industries like food & beverage, pharmaceuticals, and electronics often require oil-free air to prevent product contamination.
Some specialized components may have specific lubrication requirements or be incompatible with certain oils.

Always check the specifications of your downstream pneumatic components. If they are designed for non-lube service, a filter-lubricator should not be used, or the lubricator section should be disabled or bypassed. In such cases, a filter-regulator (FR) unit might be more appropriate.

What is the typical maintenance schedule for a filter-lubricator unit?

A typical maintenance schedule includes:

Daily/Weekly: Check and drain condensate from the filter bowl. Check the oil level in the lubricator bowl and refill if necessary. Observe the oil drip rate.
Monthly (or as needed based on conditions): Inspect the filter element for clogging (monitor pressure drop). Clean the filter bowl.
Every 6-12 Months (or as per manufacturer’s recommendation/pressure drop): Replace the filter element. Clean the lubricator internals if oil flow becomes restricted. Inspect all seals and O-rings for wear or damage.

The exact schedule will depend on the operating environment, air quality, and usage frequency. Heavily contaminated air or high cycle rates will require more frequent maintenance.

Optimize Your Air Prep with Our Filter-Lubricator Units

Ensure your pneumatic systems receive clean, lubricated air for maximum efficiency and longevity. Explore our range of filter-lubricators or contact our air preparation specialists for expert advice and solutions tailored to your needs.

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