Airtac BSED Clamping Double Acting Cylinder BSED50X300S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X300S 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 BSED50X300S
The AirTAC BSED50X300S 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 resisting rotation. The rear rod is ideal for mounting flags or cams.
This fail-safe collet mechanism delivers a 1400 N static holding force without consuming live air. If pressure drops or an E-stop trips, the rod clamps immediately. It uses a dedicated G1/8 release port, while the main cylinder ports are PT1/4. The -S magnet supports CMSE reed and DMSE electronic sensors for precise position feedback.
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 BSED50X300S 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 BSED50X300S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X300S |
|---|---|
| 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 BSED50X300S
| 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 BSED50X300S Is Used
Vertical Lift Gates
Raises and lowers access gates with 825 N equal both-way force. The 1400 N fail-safe lock holds the gate securely in mid-air during an air pressure loss.
Dual-End Machining Jigs
Clamps parts from both directions using the double-rod design. The rear rod carries a cam for sensor tracking while the 1400 N lock resists machining vibration.
Pallet Stops
Halts moving pallets on a line with symmetric push and pull capability. The spring-applied collet locks the stop pin instantly if the main air supply fails.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X300S the Right Cylinder?
Select this 50 mm bore when an application requires 825 N of symmetric thrust alongside a 1400 N static hold. If your load needs less force, the 40 mm bore offers 528 N drive and 900 N holding force. For heavier loads, step up to the 63 mm bore, providing 1402 N drive and 2200 N holding force. Always verify your load is under 1400 N.
Engage the lock only after the rod stops completely, and release it only when piston sides are pressure-balanced, allowing at least 0.5 s. Because the stroke is 300 mm, use a guide to prevent excessive side-loading on the extended rod. For replacements, match the 50 mm bore, 300 mm stroke, PT1/4 port, and -S magnet.
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 BSED50X300S FAQ
The drive force is equal in both directions at 825 N @0.5 MPa and 1154 N @0.7 MPa, with a maximum drive of 118 kgf. The integrated fail-safe rod lock provides a separate bidirectional static holding force of 1400 N with no live air required.
The lock is spring-applied and air-released via a dedicated G1/8 port. To release safely, ensure both piston sides are pressure-balanced, apply 0.15-0.7 MPa to the release port, and wait at least 0.5 seconds before moving the rod. Never use it as a dynamic brake.
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