SMC AMD350-03 Micro Mist Separator Rc 3/8, 0.01 um

A fine oil-mist separator for clean air

AMD350-03 is a micro mist separator from the SMC AMD series. It separates and removes oil mist in the form of an aerosol from compressed air, and it also removes carbon and dust larger than 0.01 um. The catalogue recommends it as a prefilter for precision instruments or a clean room, where cleaner air than a normal filter can give is required.

The code reads AMD (series), 350 (the 3/8 Standard body size), no thread letter (so the Rc thread) and 03 (a 3/8 port). Options such as a bracket (B), auto-drain (C or D), drain guide (J), reversed IN-OUT (R) and element service indicator (T) are not included.

Technical specifications

Position in the compressed air line

The catalogue describes the AMD as a prefilter for finer stages, and it is normally fitted downstream of a main line filter and upstream of the air dryer or of a sub-micron filter. A mist separator removes oil droplets that a normal filter passes, so the oil does not reach the sensitive devices or contaminate the product where air touches it, as in painting, food or electronics assembly.

It is not a final filter for oil vapour. For this purpose the catalogue has other, finer stages, so confirm the air quality class needed before selecting.

Sizing and maintenance

The rated flow of 1000 L/min is a maximum at 0.7 MPa and varies with the operating pressure. The catalogue gives a maximum air flow graph and flow characteristics curves; use them with the inlet pressure of your line. The element is replaced every two years or when the pressure drop reaches 0.1 MPa, and an element service indicator is offered as an option.

Drain the bowl regularly or fit an auto-drain, and mount the unit vertically, as the precautions describe. Leave room below the bowl for servicing.

A mist separator also adds a small pressure drop. Size it for the real peak flow of the branch it serves, and keep a margin so that the element lasts as long as the catalogue life figure suggests.

Related SMC products: SMC AFD30-03 Micro Mist Separator 0.01 Micron 3/8 Rc, SMC AFM30-03 Mist Separator 0.3 Micron 3/8 Rc, SMC AF30-03 Modular Air Filter 3/8 Rc, SMC AL30-03 Modular Lubricator 3/8 Rc, SMC AR30-03 Modular Pressure Regulator 3/8 Rc and SMC AW20 Air Filter &amp.

Documents and quotation

The SMC AMD catalogue PDF below has the how-to-order page, specifications, flow characteristics and dimensions. Please confirm port size, thread, drain and options before ordering. Related parts are listed under Regulators. Seven Star LLC is an independent supplier and quotes the exact code on request.

AMD350-03 and the Current AMD350C Model

The AMD350-03 is from an earlier generation of the SMC AMD micro mist separator series. In the current catalogue, the same body size is listed as the AMD350C. The current equivalent of the AMD350-03 with an Rc 3/8 port is therefore AMD350C-03. The data published for the AMD350C is given below for reference when you replace or compare an installed unit.

Port positions and dimensions can differ between generations, so check the dimension drawings before replacing a unit.

How the AMD350-03 Micro Mist Separator Works

Compressed air passes through a glass fiber element. Aerosol oil mist that is too fine for a standard filter is captured on the fibers, where the droplets coalesce, grow and drain down into the bowl. Particles such as carbon and dust of 0.01 µm and larger are trapped at the same time. The collected liquid is discharged through the drain cock or an auto drain. Because the element would be overloaded by bulk water and coarse dirt, SMC recommends fitting a main line filter (AFF) or a mist separator (AM) upstream. In the SMC air cleaning system, the AMD is used as the prefilter for finer stages such as the AME super mist separator and the AMF odour removal filter.

Selection & Ordering Guide

• Size: select the body by the maximum flow capacity line at your actual inlet pressure. The catalogue explains the procedure and gives the graph.
• Thread: Nil = Rc, F = G, N = NPT. Port 03 = 3/8, 04 = 1/2.
• Accessory: B = bracket, supplied but not assembled.
• Auto drain: C = N.C. (normally closed) or D = N.O. (normally open). Without either, the separator has a drain cock.
• Options: F = FKM seals, H = medium pressure, J = drain guide, R = IN-OUT reversal, S/U = differential pressure switch, T = element service indicator.
• Modular connection: the AMD150C to 550C bodies can be connected modularly with AFF and AM units of the same size.

Our team can help confirm the correct ordering code for a replacement of the AMD350-03 and its element.

Installation & Maintenance

• Install the separator after a main line filter and before the equipment that needs oil-free air.
• Mount it vertically with the bowl down, and follow the IN and OUT arrows.
• Drain the bowl regularly or use an auto drain.
• Watch the pressure drop. Replace the element at 0.1 MPa or after 2 years. Exhaust the pressure before opening the bowl.

Typical Applications in Oman & the GCC

Instrument air, air for spray painting and coating, air for packaging and food contact (with suitable downstream stages), electronic assembly, laboratory equipment, and air bearings or precision pneumatic devices in factories across Oman and the GCC.

Why Source the AMD350-03 from Seven Star LLC

Seven Star LLC supplies SMC micro mist separators, replacement elements, main line filters and air dryers across Oman and the GCC. Request a quote, and our team can help confirm the correct ordering code.