Airtac BSED Clamping Double Acting Cylinder BSED50X75S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X75S 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, 75mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke75 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 BSED50X75S
The AirTAC BSED50X75S 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 drive force of 825 N each way at 0.5 MPa. This symmetric design is ideal for carrying rear-rod tooling or flags while resisting rotation.
The fail-safe collet lock provides a 1400 N static holding force with no live air required. It engages bidirectionally if pressure drops or an E-stop trips. A separate G1/8 release port manages the unlock function, while adjustable air cushions at both ends absorb end-of-stroke impacts. The -S magnet enables position sensing with CMSE or DMSE switches.
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 BSED50X75S 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 BSED50X75S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X75S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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 BSED50X75S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×75 | 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 BSED50X75S Is Used
Mid-Stroke Machining Clamps
Holds a 1400 N workpiece securely during machining, using the equal 825 N both-way force to position clamps from either end without rotation.
Pallet Lift-and-Hold Stations
Lifts pallets with 1154 N of symmetric drive force and engages the fail-safe collet lock to prevent dropping if shop air pressure suddenly drops.
Dual-Tool Transfer Units
Uses the rear exiting rod for a cam flag while providing 825 N of equal push/pull force to transfer parts, locking safely during station dwells.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X75S the Right Cylinder?
Select this 50 mm bore when an application requires both symmetric 1154 N drive force at 0.7 MPa and a 1400 N fail-safe hold. If your load demands less force, the 40 mm bore offers 528 N drive and 900 N holding. For heavier loads, step up to the 63 mm bore, which provides 1402 N drive and 2200 N holding. Always verify your static load is 1400 N or less.
Engage the lock only after the rod completely stops, and release it only when piston sides are pressure-balanced, allowing at least 0.5 s for the transition. To replace this unit, match the 75 mm stroke, PT1/4 cylinder port, M16x1.5 rod thread, and your specific mounting choice from Basic, LB, FA, or TC.
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 BSED50X75S FAQ
The integrated spring-applied collet immediately clamps the rod, providing a 1400 N static holding force to keep the load in place without live air. It is a fail-safe static hold, not a dynamic brake, so it must only engage after the rod stops.
The double-rod design provides equal drive force in both directions: 825 N at 0.5 MPa and 1154 N at 0.7 MPa, with a maximum drive of 118 kgf. This drive force is separate from the 1400 N static holding force of the rod lock.
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Standard models are processed and dispatched in 3-5 business days.
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