Bijur Delimon Airmatic Pneumatic Oil Lubricator

A simple shop-air pump for cyclic oil lubrication

The Airmatic lubricator is a simple, economical unit for centralized oil lubrication that runs on shop air. An air-actuated, spring-return piston pump gives an adjustable output of 2 to 10 cc per stroke at discharge pressures up to 500 psi, and the stroke setting is easy to adjust to suit many industrial needs.

It is supplied with a 1, 4 or 12 litre reservoir and is used in cyclic oil systems: single line resistance (SLR), positive displacement injector (PDI), progressive distribution and injector systems. A built-in pressure relief device lets PDIs reset after discharge.

Technical specifications

How to order Airmatic

The designation is AIR followed by four codes. Reservoir: 1 litre plastic, 4 litre plastic or 12 litre metal. Output mode: A single line resistance, B PDI, C progressive, D injector (type ZEE injectors). Level switch: A without, B with. Solenoid valve: A none, B 110 V, C 220 V, F 110 V with DIN, G 220 V with DIN, H 24 VDC, J 12 VDC, K 24 VDC with DIN. Example from the datasheet: AIR1AAA is a 1 litre unit for SLR without switch or solenoid, and AIR12AAA the 12 litre equivalent.

Related Bijur Delimon products in the same range are compared below.

System design and air supply

For extended service the incoming air must be dry; use a suitable filter/regulator/lubricator unit and normally a 3/2-way solenoid valve to control and vent the pump air inlet. For PDI systems the recommended maximum discharge is 10 cc per stroke. If the distribution system uses a lot of flexible hose, add a correction to the pump discharge: 0.030 per foot of 5/16 in. O.D. hose or 0.035 per foot of 7/16 in. O.D. hose. See pumps and lubrication equipment and the related SKF TLMR dispenser.

How the Bijur Delimon Airmatic works

The Airmatic is a small pump driven by shop air. Air pushes a piston forward and a spring returns it. Each stroke delivers a set amount of oil, between 2 and 10 cc, and the setting is adjusted by hand. The air to oil pressure ratio is 1 to 4, so 80 psi of air gives a good oil pressure for the lines. A solenoid valve on the air supply, or a timer, gives the cycle. The oil then moves through the lines to the metering devices.

Where the Bijur Delimon Airmatic is used

• Single line resistance systems
• Positive displacement injector systems
• Progressive distribution systems
• Machine tools and presses
• Plants where only shop air is at hand

Selection checklist for the Bijur Delimon Airmatic

• Reservoir of 1, 4 or 12 litres
• Output mode: SLR, PDI, progressive or injector
• Output of 2 to 10 cc per stroke
• Oil viscosity from 150 to 8000 SSU
• Air supply pressure
• Low level switch
• Solenoid valve voltage
• Cycles per minute, up to 30

Installation, commissioning and maintenance notes for the Airmatic

Mount the pump above or beside the oil lines. Connect the air to the 1/4 in NPTF inlet and the oil line to the 1/8 in NPTF outlet. Fill the reservoir with clean oil. Set the air at about 80 psi for SLR and progressive systems, and the stroke to the volume needed. Prime the lines and watch a few cycles. Check the oil level and the filter often.

Requesting a quotation for the Bijur Delimon Airmatic

Please send the reservoir, the system type, the oil, the air supply, the options and the quantity. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

Airmatic pressure limits

The operating pressure is 300 psi for SLR and progressive systems and 400 psi for PDI and injector systems. The maximum discharge is 500 psi.

Airmatic temperature

The operating range is 32 to 120 degrees F, or 0 to 49 degrees C.

Airmatic ordering code

The code is AIR followed by the reservoir, output mode, level switch and solenoid codes. AIR1AAA is a 1 litre unit for SLR without switch or solenoid.

Airmatic related pumps

The range also has the SureFire II electric gear pump, the MultiPort II grease pump and the Dynamis Maxx mobile pump.

Lubricator records for the Airmatic

Keep the stroke setting, the oil grade and the fill dates in the lubrication log.

Choosing the right Airmatic setup

Choose the reservoir from the oil use between refills, and the mode from the line system.

Documents and quotation

The manufacturer datasheet (Airmatic Lubricator Datasheet 20349 R10 03/18) is attached to this page as a download. For a quotation, send the lubricant and viscosity or NLGI grade, the number and type of lubrication points, the system type (progressive, injector or single-line), the supply voltage or air pressure, the ambient temperature range and any option letters from the ordering chart. Please confirm the full part number and options against the current manufacturer datasheet before ordering; the data on this page is taken from the datasheet revision named above.