Airtac BSLM Miniature Silencer BSLM01
The AirTAC Airtac BSLM Miniature Silencer BSLM01 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 BSLM01
Every time a directional valve dumps its cylinder, the trapped air leaves the exhaust port as a single sharp pulse - the crack you hear on every stroke. A silencer sits directly on that port and forces the pulse through a porous mass, splitting it into countless small pressure drops that arrive as quiet hiss instead of bang. The BSLM01 is the miniature member of AirTAC's universal silencer family: an aluminium-alloy body carrying a brass-particle sintered sound-absorbing cover, rated at 13 dB of noise reduction at 0.5 MPa.
The 01 in the code is the thread: 1/8in PT male, so the BSLM01 screws straight into any 1/8in exhaust or muffler port with a spanner on the body flats. What separates it from the full-size BSL in the same 1/8in size is length - the BSLM takes the identical sintered element and shortens the housing around it, buying clearance on valve manifolds, solenoid stacks and other ports where a full-length silencer would foul pipework, guards or adjacent fittings.
Airtac BSLM Miniature Silencer BSLM01 Technical Specifications
| Model | Airtac BSLM Miniature Silencer BSLM01 |
|---|---|
| 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 BSLM01
| 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 BSLM01 Is Used
Solenoid valve stacks on packaging machines
Compact valve islands on form-fill-seal and cartoning machines often sit under a guard rail with barely 30 mm of clearance above each exhaust port. The BSLM01's shortened body clears the rail where a full-length BSL would foul, while still delivering the full 13 dB brass-sintered reduction on every dump of the 1/8in port.
Pick-and-place heads and small grippers
A mini pneumatic gripper cycling thousands of times per shift near the operator's ear is a classic noise complaint. Mounted on the valve exhaust feeding a 1/8in circuit, the BSLM01 tames each crack of the gripper open and close without adding the bulk or weight that would unbalance a moving head.
Laboratory and analytical instrument enclosures
Inside a sample-handling or analytical instrument cabinet, space around solenoid valves is tight and technicians work inches away all day. The BSLM01 fits the cramped 1/8in exhaust ports of these manifold valves and quiets each actuation, while the aluminium-and-brass build tolerates the warm, occasionally oily air small compressors deliver.
Is the Airtac BSLM Miniature Silencer BSLM01 the Right Part?
Choose your element first. Sintered brass at 13 dB (BSL, BSLM, BESL) shrugs off knocks, hot exhaust air and oily shop dirt, which suits machine tools and packaging gear. Resin at 25 dB (PAL, PALM) halves the perceived sound again and weighs almost nothing, but it is the softer choice - pick it where operators work close by and the silencer will not be battered. If you also want to throttle the exhaust speed, step to the BESL01, which adds an adjustable flow control around its sintered ring; note that no M5 BESL or PAL exists, so BSLM is one of the few ways to get a miniature threaded silencer at all.
On size, the BSLM ladder runs M5, 1/8in, 1/4in, 3/8in and 1/2in. The BSLM01 sits between the BSLM-M5 (smaller, for compact valve ports but a more restricted opening) and the BSLM02 in 1/4in (a larger sintered face and more exhaust area for bigger valves). Match the thread to the valve's exhaust port itself rather than sizing down for tidiness - an undersized silencer chokes the dump, slows cylinder return and leaves the noise problem only partly solved.
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 BSLM01 FAQ
The BSLM01 is a mini universal silencer with a 1/8in PT male thread and a brass-particle sintered sound-absorbing cover on an aluminium-alloy body. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it also works under vacuum down to -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the service temperature range is -20 to +70 C. Noise reduction is 13 dB measured at 0.5 MPa, the same figure as every sintered-brass series in this catalogue.
Both use the same sintered brass element and both are 13 dB at 0.5 MPa, but the BSLM houses it in a shorter body, so choose the BSLM01 when port clearance on a manifold or under a guard is the limiting factor and the BSL01 when you have the room. Vacuum is fine: the silencer is rated for negative pressure to -750 mmHg (10 Torr), so it can sit on the exhaust of a vacuum generator or ejector as well as a standard valve dump.
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