Airtac BSED Clamping Double Acting Cylinder BSED50X300
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X300 combines a double-rod ISO 15552 cylinder — a Ø20mm rod out BOTH ends for equal force both directions — with an integrated spring-applied, air-released ROD LOCK that holds up to 1400 N in either direction if air is lost. Ø50mm bore, 300mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke300 mm
- Static holding force1400 N
- ConfigurationDouble rod + lock
- Cylinder portPT1/4
- Lock-release portG1/8
- 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 BSED Clamping Double Acting Cylinder BSED50X300
The AirTAC BSED50X300 is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. A rod exits both ends, providing equal drive force of 825 N each way at 0.5 MPa and 1154 N at 0.7 MPa. The integrated collet lock delivers a bidirectional static holding force of 1400 N, clamping the rod securely during air loss or E-stop events.
This 50 mm bore unit operates at 0.15-0.7 MPa with a PT1/4 cylinder port and a dedicated G1/8 release port. The extruded aluminum barrel omits external tie rods for a clean profile, while the 300 mm stroke requires external guides to manage side loads. This SKU lacks a magnet, so position sensing is not available.
Double Rod + 1400 N Rod Lock (Ø50mm)
A rod exits both ends for symmetric force and back-rod tooling, and a spring clamps the collet so the Airtac BSED Clamping Double Acting Cylinder BSED50X300 holds its position in both directions on air loss or E-stop. Apply 0.15–0.7 MPa to the G1/8 release port to unlock. Engage only after the rod has stopped (not a dynamic brake), and release only when both piston sides are pressure-balanced; allow ≥0.5 s for full release.
Airtac BSED Clamping Double Acting Cylinder BSED50X300 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X300 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 mm |
| Static holding force | 1400 N |
| Cylinder port | PT1/4 |
| Lock-release port | G1/8 |
| Configuration | Double rod, double acting |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Unlocking pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC BSED datasheet. Rod thread M16×1.5 both ends. Mounting (BSED): Basic, LB, FA, TC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø50mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa (max) | 1155 N |
| Max drive (@0.7 MPa) | 118 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 1400 N static lock holding force. Size with a safety margin.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED50X300
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Thread: PT (blank) / G. Mounting (BSED): Basic, LB, FA, TC. Related: SED (double rod, no lock), BSE (single-rod rod lock). Sensors CMSE/DMSE fit magnetic BSED.
Where the Airtac BSED Clamping Double Acting Cylinder BSED50X300 Is Used
Vertical Lift Platforms
Holds a 1400 N vertical load safely mid-stroke without live air, while the 1154 N both-way drive raises and lowers the platform with equal speed.
Pallet Stops
Uses the rear exiting rod to mount a cam flag for position confirmation, engaging the fail-safe lock to halt 825 N of pallet inertia at 0.5 MPa.
Tooling Transfer
Moves a machining fixture with equal force both directions, locking the 20 mm rod instantly if air pressure drops below 0.15 MPa.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X300 the Right Cylinder?
Select this 50 mm bore model when your application requires symmetric both-way force and a 1400 N fail-safe hold. If your load exceeds 1400 N, step up to the 63 mm bore (1402 N drive at 0.5 MPa, 2200 N holding force). If you need less drive, the 40 mm bore offers 528 N drive at 0.5 MPa and a 900 N hold. Always engage the lock only after the rod stops and release it only when both piston sides are pressure-balanced, allowing at least 0.5 s.
For this 300 mm stroke, add external guides to prevent binding from side loads. When replacing, match the 50 mm bore, 300 mm stroke, PT1/4 port, and mounting choice (Basic, LB, FA, or TC). Add the -S suffix if you need CMSE reed or DMSE electronic sensors.
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 1400 N?
- ✓ Back-rod space for tooling/flag
- ✓ Lock engaged only when stopped
- ✓ G1/8 release-air line available
Installation & Safety Notes
- check Engage the lock only after the rod has stopped — not a dynamic brake.
- check Release only when both piston sides are pressure-balanced.
- check Allow ≥0.5 s for full release before commanding motion.
- check Feed the G1/8 release port with 0.15–0.7 MPa clean air.
- check Support both rod ends; avoid side load.
- check Use BSED mounting (Basic/LB/FA/TC).
Airtac BSED Clamping Double Acting Cylinder BSED50X300 FAQ
The spring-applied collet clamps the 20 mm rod, providing a bidirectional static holding force of 1400 N with no live air. It is a fail-safe lock, not a dynamic brake, so engage it only after the rod stops.
The equal both-way drive force is 825 N at 0.5 MPa and 1154 N at 0.7 MPa (max 118 kgf). The separate static holding force of the rod lock is 1400 N.
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Standard models are processed and dispatched in 3-5 business days.
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