Airtac BSE Clamp Standard Cylinder BSE125X500
The AirTAC Airtac BSE Clamp Standard Cylinder BSE125X500 is a genuine double-acting ISO 15552 cylinder with an integrated spring-applied, air-released ROD LOCK. If air is cut or an E-stop is hit, the collet clamps the Ø32mm rod and holds up to 8600 N in either direction — no drift. Ø125mm bore, 500mm stroke, PT1/2 cylinder ports, G1/8 lock-release port.
- BoreØ125 mm
- Stroke500 mm
- Static holding force8600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/2
- 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 BSE Clamp Standard Cylinder BSE125X500
The AirTAC BSE125X500 is a double-acting ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. It delivers a massive 8600 N bidirectional static holding force with zero live air required. If pressure drops or an E-stop trips, the collet clamps the 32 mm rod instantly to secure your load.
Operating pressure is capped at 0.7 MPa, and unlocking requires 0.15-0.7 MPa supplied to the dedicated G1/8 release port. Because it uses the standard SE body, all SE mounting accessories fit perfectly except FTC. This 500 mm stroke unit lacks a magnet, meaning no CMSE or DMSE position sensing on this specific SKU.
Rod Lock — 8600 N Static Holding (Ø125mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE125X500 holds its position in both directions when air is lost, exhausted or an E-stop trips. Apply 0.15–0.7 MPa to the G1/8 release port to unlock. Engage the lock only after the rod has stopped (it is not a dynamic brake), and release only when the pressures on both sides of the piston are balanced. Allow at least 0.5 s for full release before moving.
Airtac BSE Clamp Standard Cylinder BSE125X500 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE125X500 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 500 mm |
| Static holding force | 8600 N |
| Cylinder port | PT1/2 |
| Lock-release port | G1/8 |
| Rod thread | M27×2 |
|---|---|
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC BSE datasheet. The lock uses the SE standard body; SE mounting accessories fit BSE except FTC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa (max) | 8590 N | — |
| Max drive (@0.7 MPa) | 876 kgf | |
Drive force is separate from the 8600 N static holding force of the lock. BSE operates up to 0.7 MPa. Size with a safety margin.
Model Code: Airtac BSE Clamp Standard Cylinder BSE125X500
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 125 | Bore size in mm. |
| ×500 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Thread: PT (blank) / G. Mounting (BSE): Basic, LB, FA, FB, CA, CB, CR, TC (FTC is not available on BSE). Related: SE (no lock), BSED (double-rod rod lock). Sensors CMSE/DMSE fit magnetic BSE.
Where the Airtac BSE Clamp Standard Cylinder BSE125X500 Is Used
Heavy Vertical Lift Hold
Secures 8600 N suspended machine platens in heavy presses, preventing catastrophic drops if main air supply is lost during an E-stop event.
Large Injection Mold Clamp
Holds heavy injection molding tooling stationary during air exhaust cycles. The spring-applied collet locks the 32 mm rod instantly without live air.
Industrial Foundry Gate
Locks a massive 500 mm stroke foundry diverter gate open safely during maintenance. The fail-safe collet ensures the gate remains fixed if plant pressure drops.
Is the Airtac BSE Clamp Standard Cylinder BSE125X500 the Right Cylinder?
Verify your load stays under the 8600 N holding force. If you need less holding, the 100 mm bore offers 5500 N hold and 3927 N push at 0.5 MPa. If you need more drive force, note this 125 mm bore already provides the maximum push of 8590 N at 0.7 MPa. Remember: engage the lock only after the rod fully stops, and release it only when piston pressures are balanced, allowing at least 0.5 s before moving.
With a 500 mm stroke, side-load risks are high; ensure external guide rails carry the lateral weight to prevent premature seal wear. To replace this unit, match the 125 mm bore, 500 mm stroke, PT1/2 cylinder port, and your specific mounting code.
Quick checklist
- ✓ Load to hold ≤ 8600 N?
- ✓ Fail-safe hold on air loss / E-stop needed
- ✓ Lock engaged only when stopped
- ✓ G1/8 release-air line available
- ✓ Magnet (-S) for CMSE/DMSE sensors?
Installation & Safety Notes
- check Engage the lock only after the rod has stopped — not as 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 Add safety-rated controls for man-rated / overhead loads.
- check Use SE mounting accessories (FTC excepted).
Airtac BSE Clamp Standard Cylinder BSE125X500 FAQ
The rod lock is spring-applied and fail-safe. If air is lost, exhausted, or an E-stop trips, the collet clamps the rod and holds the load bidirectionally up to 8600 N with no live air. It is a static hold, not a dynamic brake.
Drive force is separate from the static hold. This 125 mm bore provides 6136 N push at 0.5 MPa, 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a max drive of 876 kgf. The static holding force of the lock is 8600 N.
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