Airtac BSLM Miniature Silencer BSLM5
The AirTAC Airtac BSLM Miniature Silencer BSLM5 is a genuine universal silencer that cuts exhaust noise by 13 dB at 0.5 MPa using a sintered brass sound-absorbing cover in an aluminium-alloy body.
- TypeUniversal silencer
- SeriesBSL
- 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 BSLM5
Every stroke of a directional valve releases a compressed pressure pulse, and that pulse is what you hear as the sharp crack of exhaust air. The BSLM5 screws onto the valve's M5 exhaust port and forces the air through a sintered wall of bonded brass particles, breaking the pulse into countless small streams. The result is a 13 dB drop in noise at 0.5 MPa, achieved by the same brass-particle sintered sound-absorbing element used in the full-size BSL.
What makes the BSLM5 different is where that element lives: AirTAC packs the standard BSL silencing core into a shortened aluminium-alloy body, so the whole part clears valve manifolds, gripper housings and other tight spaces a full-length silencer would foul. It is also a universal part, meaning it works on both pressure exhaust and on vacuum circuits down to -750 mmHg.
Airtac BSLM Miniature Silencer BSLM5 Technical Specifications
| Model | Airtac BSLM Miniature Silencer BSLM5 |
|---|---|
| Type | Universal silencer |
| Series | BSL |
| Noise reduction | 13 dB at 0.5 MPa |
| Element | Sintered brass sound-absorbing cover 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 BSLM5
| BSL | Universal 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 BSLM5 Is Used
Compact gripper circuits on assembly benches
Small pneumatic grippers and micro-cylinders often carry M5 exhaust ports with no room for a full-length muffler. The BSLM5's shortened body clears the gripper housing while still removing the per-cycle crack of air next to the operator's hands.
Laboratory micro-pneumatic assemblies
Benchtop lab devices and analytical sample handlers use M5 valve ports where every millimetre of protrusion matters. The BSLM5 silences each exhaust without extending past the valve footprint, and its aluminium body tolerates the general lab environment.
Dense M5 valve manifold banks
On tightly packed valve islands where exhaust ports sit millimetres apart, full-size silencers collide. The BSLM5 keeps each port quiet at 13 dB while fitting side by side across the whole bank.
Is the Airtac BSLM Miniature Silencer BSLM5 the Right Part?
The M5 thread is the smallest size in the BSLM ladder, which runs M5, 1/8, 1/4, 3/8 and 1/2. That leaves exactly one neighbour: step up to BSLM01 (1/8 PT) for more open exhaust area on a larger valve port, and say so plainly when a customer asks about going smaller - nothing smaller than M5 exists in this series. Match the thread to the valve's own exhaust port rather than sizing down; a muffler smaller than the port chokes the exhaust and drags out the return stroke.
Metal or resin is the other decision. This sintered brass element gives 13 dB and shrugs off knocks, hot exhaust and dirty air; if the machine stands next to people all day and noise is the priority, a resin series such as PAL or PALM reaches 25 dB instead. BSLM is the right pick when space is the constraint but the part will still see rough service.
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 BSLM5 FAQ
Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), with negative pressure capability down to -750 mmHg (10 Torr) for vacuum use. Proof pressure is 1.5 MPa and the working temperature range is -20 to +70 C. This SKU is the BSLM mini silencer in M5 thread, the smallest size in the BSLM range, with a 13 dB noise reduction at 0.5 MPa from its brass-particle sintered element.
M5 is the bottom of the BSLM ladder - there is no smaller thread in this series. If your valve port is a 1/8 PT, order BSLM01 instead; it shares the same 13 dB silencing element but offers more exhaust opening for higher-flow valves. Always match the silencer thread to the valve's exhaust port size rather than fitting something smaller, because an undersized muffler restricts exhaust flow and slows the cylinder's return stroke.
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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.
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Most inquiries answered within 7-8 hours.
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