Airtac BSLM Miniature Silencer BSLM03
The AirTAC Airtac BSLM Miniature Silencer BSLM03 is a genuine mini silencer that cuts exhaust noise by 13 dB at 0.5 MPa using a sintered brass sound-absorbing element in an aluminium-alloy body.
- TypeMini silencer
- SeriesBSLM
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Noise reduction13 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 BSLM03
The BSLM03 screws into a 3/8" PT exhaust port and does one job: it breaks up the pressure pulse that leaves a valve as a sharp crack every cycle. Inside, a brass-particle sintered cover spreads the escaping air through thousands of tiny pores, holding noise to 13 dB of attenuation at 0.5 MPa. The body is aluminium alloy, so the part survives the knocks, oil mist and heat of a working plant floor.
The M in BSLM stands for mini: it carries the same sintered element as the full-size BSL but in a shorter body, which matters when valves sit close together on a manifold and a full-length silencer would foul neighbouring fittings. Rated to 1.5 MPa proof pressure, it shrugs off the back-pressure spikes that crack cheaper plastic caps.
Airtac BSLM Miniature Silencer BSLM03 Technical Specifications
| Model | Airtac BSLM Miniature Silencer BSLM03 |
|---|---|
| Type | Mini silencer |
| Series | BSLM |
| Noise reduction | 13 dB at 0.5 MPa |
| Element | Sintered brass sound-absorbing element in an aluminium-alloy body |
| 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. 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 BSLM03
| 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. |
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 BSLM03 Is Used
Bottling line reject gates
Reject and divert cylinders on a bottling conveyor fire several times a second right where operators stand. A 3/8" exhaust on the gate valve takes a BSLM03 directly, and the sintered brass element shrugs off the syrupy overspray and washdown mist that clog open plastic grilles.
CNC pallet changer clamps
Pallet-clamp and fixture valves on a machining centre exhaust hot, oil-laden air into a crowded enclosure where a tall silencer will not fit. The short BSLM03 body clears neighbouring fittings while damping the clamp-release crack each cycle.
Meeting an 85 dBA noise limit
A shop floor being brought under an 85 dBA 8-hour exposure limit often traces its worst single source to one big valve exhausting unprotected. Fitting a 13 dB sintered silencer on that 3/8" port is the cheapest first step before any engineering redesign.
Is the Airtac BSLM Miniature Silencer BSLM03 the Right Part?
Step down to BSLM02 (1/4") for small valves, or up to BSLM04 (1/2") for large exhaust ports; stepping up adds face area and slightly more attenuation headroom, stepping down saves space but chokes a big valve. Match the thread to the valve's exhaust port rather than sizing down for convenience - an undersized or clogged silencer restricts exhaust and visibly slows the cylinder's return stroke.
Worth knowing before you compare: the resin PALM mini range stops at 1/4", so BSLM03 has no plastic mini sibling. If you need 3/8" and can accept a larger body, the full-size resin PAL03 is the 25 dB alternative; if the part will be knocked or run hot and oily, this 13 dB sintered-brass mini is the right call.
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 BSLM03 FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), usable under vacuum down to -750 mmHg (10 Torr). Proof pressure 1.5 MPa. Operating temperature -20 to +70 C. Connection is a 3/8" PT male thread. Noise reduction is 13 dB at 0.5 MPa, achieved by the brass-particle sintered sound-absorbing cover shared across the whole BSLM mini range.
You can, but you should not. A 3/8" element behind a 1/2" port chokes the exhaust, slows the return stroke and loads the valve. Order BSLM04 for the 1/2" port - it exists in the same series and keeps the sintered element matched to the port bore. Fit the reducer only where the thread on the machine is smaller than the silencer, never the other way round.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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