Airtac BSED Clamping Double Acting Cylinder BSED50X800S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X800S 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, 800mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke800 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 BSED50X800S
The AirTAC BSED50X800S 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 and 1154 N at 0.7 MPa. The rear rod provides anti-rotation stability and allows mounting a flag or cam for position feedback.
This fail-safe collet lock provides a 1400 N static holding force without requiring live air. If pressure drops or an E-stop trips, the rod clamps securely at position. The lock releases via a separate G1/8 port, and the -S magnet enables CMSE reed or DMSE electronic sensors for precise tracking.
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 BSED50X800S 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 BSED50X800S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X800S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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 BSED50X800S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×800 | 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 BSED50X800S Is Used
Long-Stroke Transfer Pause
Pauses a heavy workpiece carrier mid-transit along an 800 mm run. The 1154 N both-way drive moves the load, while the 1400 N fail-safe lock holds it securely during machining.
Z-Axis Lift Positioning
Raises and lowers a 50 kg vertical lift platform. The double-rod design ensures equal speed both up and down, with the rod lock preventing falls if air pressure is lost.
Dual-End Tooling Actuator
Drives an assembly head from both ends for symmetric push-pull operations. The rear rod carries a cam for DMSE sensor tracking, while the collet lock holds the tooling steady during part insertion.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X800S the Right Cylinder?
Select this 50 mm bore when an application requires both symmetric 1154 N drive force and 1400 N fail-safe holding over an 800 mm stroke. If your load requires less force, the 40 mm bore offers 528 N at 0.5 MPa and 900 N holding; if you need more, step up to the 63 mm bore providing 1402 N at 0.5 MPa and 2200 N holding. Always verify your load is under 1400 N before relying on the lock.
Engage the lock only after the rod completely stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 s for the transition. Because the 800 mm stroke is long, ensure external guide rails support the load to prevent excessive side-loading on the rod seals. This unit uses a PT1/4 cylinder port, a G1/8 release port, and a 30 mm adjustable cushion at both ends.
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 BSED50X800S FAQ
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 force of 118 kgf. The integrated fail-safe rod lock provides a separate static holding force of 1400 N with no live air required.
The spring-applied collet lock engages automatically and requires air to release via the dedicated G1/8 port. You must release it only when both piston sides are pressure-balanced, allowing at least 0.5 seconds for the collet to open before applying motion. It is a static holding device, not a dynamic brake.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC BSED Cylinders
Request a Quote for Airtac BSED Clamping Double Acting Cylinder BSED50X800S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.