A lubricator is a device which adds controlled quantities of tool oil into a compressed air system to reduce the friction of moving components.
Most air tools, cylinders, valves, air motors, and other air-driven equipment require lubrication to extend their useful life.
Normally we install it in downstream of the compressor and upstream from the air tool or component. It provides a continuous stream of atomised oil to the points of the machine system. Therefore the lubricant provides much more effective and longer-term protection of the friction surfaces. Once we add a lubricator to the line, we should use it continuously.
Oil cup keep oil which is ready for injecting into the downsteam system. Normally, the material is pellucid ethoxyline. But some company supply the lubricators with the aluminium cup, and seemble a sight gauge on the cup.
A short PU tube, which connect with the niddle valve. It’s incharge of the transmission of the lubricant from the oil cup to the spray nozzle under the needle valve.
A. The filling port: Where fill the oil into the oil cup.
B. The check valve under the cap which will pressurize the oil cup, and make the oil injected into the spray nozzle through the dip tube. The other function is to prevent the compressed air blowing into the cup when filling oil. The check valve compose of a spring, and steel ball , and the valve seat.
C. The needle valve: it controls the flow rate of the spray nozlle.
When trun down the needle valve knob, the needle piston is tend to seal the orifice of the nozzle, therefore to reduce the oil supply. Conversly , increase the oild supply.
D. The check ball between the dip tube and the needle valve. It shuts off the air rute when filling oil into the cup.
E.The sight dome. We can check the situation of oil injection through the sight dome.
The AL/BL Series Oil Lubricators are reliable and cost-effective alternatives to AIRTAC lubricators, designed to maintain optimal lubrication in compressed air systems.
Key Features:
Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″
Thread Types: PT, G, NPT
Clear Oil Monitoring: Transparent inspection window allows easy observation of oil drip rate.
Durable Construction: Built for long service life in industrial environments.
Fast Delivery & Competitive Pricing: Short lead times and excellent value.
High-performance units designed to deliver consistent lubrication in pneumatic systems, equivalent in quality and function to SMC lubricators.
Adjustable Oil Flow: Fine-tune lubrication for efficient performance and oil savings.
Thread Sizes Available:
M5×0.8, 1/8″, 1/4″, 3/8″, 1/2″, 1″
Thread Types: PT, G, NPT
Durable & Reliable: Built for longevity in demanding environments.
Fast Delivery & Competitive Pricing
Designed to meet FESTO standards, the L Series Air Line Lubricators (OL-MINI, MIDI, MAXI) provide consistent lubrication without interrupting operation—ensuring optimal system performance and extended equipment life.
Continuous Operation: Enables non-stop air refueling during system operation.
Port Sizes: 1/8″ to 1″
Thread Type: G, NPT thread available
Reliable Oil Adjustment: Precise and stable oil supply regulation.
Quick Installation: Compact design with user-friendly mounting.
Low Maintenance: Simple to operate and maintain with a long service life.
High-Pressure Capability: Designed for reliable operation under high pressure, ensuring stable performance in demanding applications.
Corrosion & Chemical Resistance: Suitable for chemically harsh environments and outdoor installations, offering long-lasting durability.
Port Sizes: 1/4″ to 1″
Thread Types Available: PT, G, NPT
High Flow Capacity: Engineered for large-volume air systems
Continuous Operation: Lubricating oil can be refilled without interrupting the air supply, minimizing downtime.
The AL Main Line Series Air Line Lubricator is designed for high-capacity pneumatic systems, offering reliable and consistent lubrication. Equivalent in performance to SMC models, this series ensures equipment protection and long service life, even under heavy-duty conditions.
Key Features:
Port Sizes: 1/2″ to 2″
Thread Types Available: PT, G, NPT
High Flow Capacity: Engineered for large-volume air systems
Durable & Reliable: Built for long-term industrial use
Cost-Effective: Competitive pricing with proven performance
Designed for efficient and compact lubrication of pneumatic tools, the ACL Air Tool Oiler is ideal for extending tool life and ensuring smooth operation.
Material: Aluminum
Color: Gold
Length: 55 mm (2.24″)
Diameter: 30 mm (1.18″)
Connector Size:
1/4″ Internal Thread (Female)
1/4″ External Thread (Male)
There are still a few pneumatic products that require internal oil lubrication. Anyone who uses a pneumatic tool understands that light machine oil must be added periodically. Additionally, some air motors and air clutches also require internal oil lubrication. If you need to use these products, you will have to figure out a way to get them lubricated from time to time.
1. Remove build-up on components
2. Prevent rust build-up
3. Ensure free movement of parts
4. Create smooth starts and stops
5. Prevent moisture build-up
6. Remove sludge and calcium deposits
7. Prevent O-ring breakdown
Then, try to use it so that you only lubricate the device that requires it. Why lubricate your entire system when only one device needs it? In fact, depending on where you locate the lubricator in the system, the oil may not ever make it to the device that needs it.
The oil is suspended as a vapor in the compressed air stream. If the air must take a circuitous route to reach the intended device, the oil may come out of suspension before it gets there.
Who will be responsible for keeping the lubricator bowl full of oil?
Will they be trained to adjust it to provide the right amount of oil?
Will they be trained to only use the proper oil?
These are important considerations. Many machines have had performance issues directly related to poor lubricator maintenance and adjustment. If the lubricator runs out of oil, the oil inside the system will tend to dry out, causing many pneumatic products to stick or slow down.
If improper oil is used, it can damage the entire pneumatic system. If too much oil is used, it tends to come out of the system exhaust where it can create puddles of slippery oil or oil vapor in the atmosphere.
When there is corrosive gas filled in the environment, or the acid, alkaline liquid may splash on the lubricator, then the stainless steel material lubricator is essential.