Airtac BSED Clamping Double Acting Cylinder BSED50X50S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X50S 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, 50mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke50 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 BSED50X50S
The AirTAC BSED50X50S is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. A rod exits both ends, delivering equal force in both directions—about 825 N each way at 0.5 MPa. The integrated collet lock provides a 1400 N bidirectional static holding force, maintaining position with zero live air.
This 50 mm bore unit includes a magnetic piston for CMSE or DMSE sensors and uses a PT1/4 cylinder port alongside a dedicated G1/8 lock-release port. Unlike a dynamic brake, the fail-safe collet engages only after motion stops and requires balanced pressure to release, operating within a 0.15-0.7 MPa pressure ceiling.
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 BSED50X50S 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 BSED50X50S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X50S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 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 BSED50X50S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×50 | 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 BSED50X50S Is Used
Mid-Stroke Machining Clamps
Uses the equal 825 N both-way force to clamp parts from either direction, engaging the 1400 N lock to hold workpieces securely against vibration during machining.
Vertical Lift Stops
Lifts payloads with symmetric drive force and relies on the fail-safe collet to hold the load at altitude if air pressure drops, preventing sudden falls.
Shuttle Transfer Gates
Transfers components between two conveyors using both rods for equal push/pull speed, locking the gate in the fully open or closed position without consuming air.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X50S the Right Cylinder?
Select this model when an application demands symmetric both-way force and immediate fail-safe holding. Verify your static load does not exceed the 1400 N holding capacity. If you need less force, the 40 mm bore offers 528 N drive force at 0.5 MPa and a 900 N hold; if you need more, the 63 mm bore provides 1402 N drive at 0.5 MPa and a 2200 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 seconds for the transition. For exact replacement matching, confirm the 50 mm stroke, PT1/4 porting, Basic/LB/FA/TC mounting, and the -S magnet option.
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 BSED50X50S FAQ
The double-rod drive force is equal both ways: 825 N at 0.5 MPa and 1154 N at 0.7 MPa (a maximum of 118 kgf). The static holding force of the spring-applied rod lock is 1400 N, which holds the load in place with no live air.
The lock is a spring-applied, air-released collet, not a dynamic brake. You must engage it only after the rod stops. To release, apply pressure to the G1/8 release port only after both piston sides are pressure-balanced, allowing at least 0.5 seconds for the collet to disengage.
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