Airtac BSLM Miniature Silencer BSLMM5-S
SUS304 stainless variant (-S)The AirTAC Airtac BSLM Miniature Silencer BSLMM5-S is a genuine mini silencer that cuts exhaust noise by 15 dB at 0.5 MPa using a copper-particle sintered element in a SUS304 body.
- TypeMini silencer
- SeriesBSLM
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Noise reduction15 dB
- Temperature-20 to +70 °C
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSLM Miniature Silencer BSLMM5-S
The BSLMM5-S is the compact BSLM mini silencer finished in SUS304, threaded M5 so it screws straight onto the smallest exhaust ports AirTAC valves and miniature pneumatic components carry. Its job is simple: it sits on the exhaust and breaks up the pressure pulse that otherwise leaves the port as a sharp crack of escaping air. The brass-particle sintered sound-absorbing element inside delivers a measured 15 dB reduction at 0.5 MPa - the stainless-specific figure for the M5 size.
What you pay the stainless premium for is the body material. The SUS304 housing stands up to wash-down spray, humid or saline air and mild chemical splash that would pit an aluminium-alloy body over time. It also suits processes where copper contamination is a concern, so long as you remember the sintered element itself is a copper-particle design - the corrosion resistance lives in the body, not the insert. Dimensions match the standard BSLM exactly, so it is a direct swap.
Airtac BSLM Miniature Silencer BSLMM5-S Technical Specifications
| Model | Airtac BSLM Miniature Silencer BSLMM5-S |
|---|---|
| Type | Mini silencer |
| Series | BSLM |
| Noise reduction | 15 dB at 0.5 MPa |
| Element | Copper-particle sintered element in a sus304 body |
| Body material | Stainless steel 304 (-S variant) |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. Stainless (-S): SUS304 silencer body. The sound-absorbing element remains copper-particle sintered, so this variant is specified for corrosion resistance rather than as a wholly copper-free part. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac BSLM Miniature Silencer BSLMM5-S
| BSLM | Mini silencer. |
|---|---|
| 01 / 02 / 03 / 04 | Thread: 1/8", 1/4", 3/8", 1/2". M5 where the series offers it. |
| D | Black. Blank = grey. |
| -S | Stainless-steel body. |
Choosing a Silencer
- check Sintered-brass types (BSL / BSLM / BESL) give 13 dB and take rough treatment.
- check Resin types (PAL / PALM / PPA) give 25 dB and weigh far less.
- check PPA plugs straight into a tube instead of a thread, and is copper-free for sensitive processes.
- check BESL adds an adjustable throttle, so it silences AND sets exhaust speed in one part.
- check An undersized or clogged silencer shows up as a slow return stroke - size it to the valve's exhaust port.
Where the Airtac BSLM Miniature Silencer BSLMM5-S Is Used
Analytical instrument solenoid valves
Benchtop analysers and sample-handling stations run small M5-ported solenoid valves that click and hiss in a quiet room. This mini silencer trims the exhaust report 15 dB without adding bulk beside the manifold.
Wash-down packaging machinery
On a dairy or meat packing line, small pick-and-place grippers exhaust near the valve block and get hosed down every shift. The SUS304 body shrugs off the spray and cleaning agents that corrode an aluminium silencer.
Plating and pickling line actuators
Small air pilots on plating jigs and rinse-station actuators sit in acid-laden air. A stainless body resists the fume attack, and the silencer keeps the shift-long exhaust noise down for operators working at the tank edge.
Is the Airtac BSLM Miniature Silencer BSLMM5-S the Right Part?
M5 is the smallest thread in the BSLM ladder, so there is nothing below it; the next step up is BSLM in 1/8 in (01). Stepping up buys you a larger sintered face and a bigger flow path, which matters on a bigger valve because an undersized silencer throttles the exhaust and slows the cylinder's return stroke. Match the silencer to the valve's exhaust port itself rather than sizing down to keep the part small - the 15 dB benefit is wasted if the exhaust is choked.
Choose this over the aluminium version whenever the environment, not just the noise, is the enemy: regular wash-down, coastal air, plating-shop fumes. Note the stainless silencing figures differ from the standard series - 15 dB here on M5 - because the published ratings are measured on the stainless build. Keep the 1/8 in neighbour in mind if your port turns out to be the larger thread.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
- ✓ Noise target: 13 dB metal or 25 dB resin
Airtac BSLM Miniature Silencer BSLMM5-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), usable under negative pressure to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and an operating temperature range of -20 to +70 C. This SKU is the BSLM mini silencer in SUS304 with an M5 thread - the smallest size in the series - with a rated 15 dB noise reduction at 0.5 MPa.
An M5 port is small to begin with, so any restriction there costs stroke speed. First confirm the sintered element is not clogged with compressor dirt, since a blocked silencer throttles exhaust just like a partly closed valve. If the cylinder still returns slowly, step up to the BSLM 1/8 in (01) size only if the valve's exhaust port is actually the larger thread - never reduce below the port. On stainless models, remember the noise rating is 15 dB at 0.5 MPa and the pressure limits stay identical to the standard BSLM.
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