AirTAC Pneumatics
AirTAC BSED Series Double-Rod Lock Cylinders
The AirTAC BSED series is a double-rod ISO 15552 cylinder with a spring-applied rod lock, providing equal push/pull force, anti-rotation, and fail-safe holding across 32-125mm bores.
inventory_2309 models availableSeries Overview
The AirTAC BSED series combines a double-rod ISO 15552 pneumatic cylinder with an integrated spring-applied, air-released rod lock. A rod exits both ends, delivering equal force in both push and pull directions while preventing rotation. If air pressure is lost, exhausted, or an E-stop trips, the collet clamps the rod and holds it in both directions at its stopped position.
The range spans 7 bores from 32 to 125 mm. At 0.5 MPa, the bidirectional force spans from the mid-hundreds of Newtons at bore 32 to several thousand Newtons at bore 125. The cylinder operates at a lock-limited pressure range, and a separate G1/8 release port unlocks the collet when piston pressures are balanced.
This mechanism is a static holding brake, not a dynamic brake. It must engage only after the rod has stopped, and you must allow time for full release before moving. Choose the BSED for fail-safe drift protection on an ISO 15552 axis where equal force both ways is required.
Browse Models
Airtac BSED Clamping Double Acting Cylinder BSED125X80S
SKU: BSED125X80S
$782.09$789.59
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Airtac BSED Clamping Double Acting Cylinder BSED125X800S
SKU: BSED125X800S
$1,072.69$1,080.19
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Airtac BSED Clamping Double Acting Cylinder BSED125X800
SKU: BSED125X800
$1,066.63$1,074.13
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Airtac BSED Clamping Double Acting Cylinder BSED125X450S
SKU: BSED125X450S
$924.00$931.50
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Airtac BSED Clamping Double Acting Cylinder BSED125X900S
SKU: BSED125X900S
$1,115.49$1,122.99
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Airtac BSED Clamping Double Acting Cylinder BSED125X350
SKU: BSED125X350
$877.48$884.98
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Airtac BSED Clamping Double Acting Cylinder BSED125X350S
SKU: BSED125X350S
$883.52$891.02
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Airtac BSED Clamping Double Acting Cylinder BSED125X80
SKU: BSED125X80
$776.04$783.54
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Airtac BSED Clamping Double Acting Cylinder BSED125X600S
SKU: BSED125X600S
$987.28$994.78
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Airtac BSED Clamping Double Acting Cylinder BSED125X50
SKU: BSED125X50
$762.55$770.05
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Airtac BSED Clamping Double Acting Cylinder BSED125X900
SKU: BSED125X900
$1,109.44$1,116.94
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Airtac BSED Clamping Double Acting Cylinder BSED125X500
SKU: BSED125X500
$938.42$945.92
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Airtac BSED Clamping Double Acting Cylinder BSED125X700
SKU: BSED125X700
$1,023.83$1,031.33
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Airtac BSED Clamping Double Acting Cylinder BSED125X75
SKU: BSED125X75
$769.53$777.03
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Airtac BSED Clamping Double Acting Cylinder BSED125X75S
SKU: BSED125X75S
$775.58$783.08
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Airtac BSED Clamping Double Acting Cylinder BSED125X400S
SKU: BSED125X400S
$903.79$911.29
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Airtac BSED Clamping Double Acting Cylinder BSED125X300S
SKU: BSED125X300S
$863.31$870.81
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Airtac BSED Clamping Double Acting Cylinder BSED125X500S
SKU: BSED125X500S
$944.48$951.98
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Airtac BSED Clamping Double Acting Cylinder BSED125X300
SKU: BSED125X300
$857.26$864.76
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Airtac BSED Clamping Double Acting Cylinder BSED125X175
SKU: BSED125X175
$806.55$814.05
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Airtac BSED Clamping Double Acting Cylinder BSED125X700S
SKU: BSED125X700S
$1,029.88$1,037.38
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Airtac BSED Clamping Double Acting Cylinder BSED125X175S
SKU: BSED125X175S
$812.59$820.09
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Airtac BSED Clamping Double Acting Cylinder BSED125X225S
SKU: BSED125X225S
$832.81$840.31
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Airtac BSED Clamping Double Acting Cylinder BSED125X450
SKU: BSED125X450
$917.96$925.46
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Typical Applications
Vertical Lift Stations
Prevents gravity-induced drift on vertical actuators. If air pressure drops, the spring-applied collet clamps the rod, holding the load safely in place.
Pallet Stops
Uses the double-rod design for equal stopping force and anti-rotation. The rod lock holds the stop blade firmly in position during E-stop events.
Machine Tool Loading
Provides precise bidirectional positioning for loaders. The fail-safe lock ensures the axis does not drift into the work area when air is exhausted.
How to Choose the Right Model
Select the bore size based on your load and the bidirectional holding force chart: the 32-50 mm bores handle mid-hundreds of Newtons, while the 80-125 mm bores provide several thousand Newtons of holding force. Because the rod lock is spring-applied, ensure your system allows time for full release before commanding motion.
Choose BSED when you need anti-rotation, equal push/pull force, and fail-safe holding on an ISO 15552 interface. If you only need single-rod holding, step out to the AirTAC BSE family. If you need a plain double-rod axis without a lock, use the AirTAC SED. Always confirm these 5 points before ordering: bore size, stroke, port/thread size, mounting style, and magnet option.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and available mounting space
- ✓ Port / thread type (PT / NPT / G)
- ✓ Sensor / magnet option (-S)?
- ✓ Side load — consider a guided model
Frequently Asked Questions
The BSED series spans 7 bores from 32 to 125 mm. At 0.5 MPa, the bidirectional force spans from the mid-hundreds of Newtons at bore 32 to several thousand Newtons at bore 125. The push and pull forces are equal because it is a double-rod cylinder.
It uses a spring-applied, air-released collet. If air is lost or an E-stop trips, the collet clamps the rod, holding it in both directions. A separate G1/8 release port unlocks the collet when piston pressures are balanced. It is a static hold, not a dynamic brake, so engage it only after the rod stops.
BSED is a double-rod cylinder with a fail-safe rod lock. BSE is a single-rod version with the same rod lock. SED is a plain double-rod ISO 15552 cylinder without any locking mechanism. Choose BSED for equal force both ways plus anti-rotation and holding power.
Yes, the BSED uses the ISO 15552 mounting interface (SE/SED body). The cylinder runs at a lock-limited pressure range. AirTAC makes no brand-part-number equivalence claims, but the mounting dimensions align with the ISO 15552 standard.
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