Airtac BSED Clamping Double Acting Cylinder BSED50X75
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X75 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 BSED50X75
The AirTAC BSED50X75 is a double-acting, double-rod ISO 15552 profile cylinder with 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 fail-safe collet clamps the rod bidirectionally, providing a 1400 N static holding force with no live air required.
This extruded aluminum profile body has no external tie rods and uses a PT1/4 cylinder port alongside a dedicated G1/8 lock-release port. The lock engages only after the rod stops and releases when both piston sides are pressure-balanced, requiring at least 0.5 seconds. This specific SKU has no magnet (-S), so it cannot use CMSE or DMSE position sensors.
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 BSED50X75 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 BSED50X75 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X75 |
|---|---|
| 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 BSED50X75
| 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 BSED50X75 Is Used
Vertical Lift Jigs
Holds vertical lift jigs securely in place with 1400 N of fail-safe holding force during an air loss event, while the 825 N equal both-way drive ensures smooth up and down motion.
Machining Stops
Provides rigid anti-rotation tooling mounts via the rear rod for machining stops, locking the 1154 N drive force instantly when E-stop is triggered.
Pallet Diverter
Actuates a pallet diverter with equal force both ways, using the spring-applied collet to prevent drift and hold position without continuous air supply.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X75 the Right Cylinder?
Select this 50 mm bore when you need both symmetric drive and fail-safe holding up to 1400 N. If your load exceeds 1400 N, step up to the 63 mm bore (1402 N drive at 0.5 MPa, 2200 N holding). If you need less force, step down to the 40 mm bore (528 N drive at 0.5 MPa, 900 N holding). Always verify the load to hold is under 1400 N and engage the lock only after the rod stops. For replacement, match the 50 mm bore, 75 mm stroke, PT1/4 port, and basic mounting.
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 BSED50X75 FAQ
The integrated spring-applied collet engages automatically, providing a 1400 N bidirectional static holding force to keep the rod at its current position. It is a fail-safe lock, not a dynamic brake, so it must engage only after the rod stops moving.
The drive force is equal both ways: 825 N at 0.5 MPa and 1154 N at 0.7 MPa (max 118 kgf). To release the 1400 N lock safely, 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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