Airtac BSE Clamp Standard Cylinder BSE63X125
The AirTAC Airtac BSE Clamp Standard Cylinder BSE63X125 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 Ø20mm rod and holds up to 2200 N in either direction — no drift. Ø63mm bore, 125mm stroke, PT3/8 cylinder ports, G1/8 lock-release port.
- BoreØ63 mm
- Stroke125 mm
- Static holding force2200 N
- Lock typeSpring-lock / air-release
- Cylinder portPT3/8
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE63X125
The AirTAC BSE63X125 is a double-acting, single-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. It supplies 2182 N of push drive force at 0.7 MPa, while the internal collet mechanism provides a robust 2200 N bidirectional static holding force. If air pressure drops or an E-stop trips, the lock engages automatically to freeze the piston rod exactly where it stopped.
This fail-safe unit uses a separate G1/8 release port to overcome the spring and free the rod. Operating pressure is capped at 0.7 MPa. The extruded aluminum body carries no external tie rods and accepts SE-compatible mounting accessories. This specific SKU lacks a magnet, so it does not support CMSE or DMSE position sensors.
Rod Lock — 2200 N Static Holding (Ø63mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE63X125 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 BSE63X125 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE63X125 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 125 mm |
| Static holding force | 2200 N |
| Cylinder port | PT3/8 |
| Lock-release port | G1/8 |
| Rod thread | M16×1.5 |
|---|---|
| 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 |
| Cushion | Adjustable, 36 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa (max) | 2182 N | — |
| Max drive (@0.7 MPa) | 223 kgf | |
Drive force is separate from the 2200 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 BSE63X125
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 63 | Bore size in mm. |
| ×125 | 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 BSE63X125 Is Used
Vertical Pallet Lift
Holds a raised pallet handler mid-stroke against gravity. The 2200 N collet lock prevents drift during air loss, while the 1559 N push force at 0.5 MPa handles the vertical drive.
Machine Tool Clamp
Secures a workpiece fixture on a machining center. If shop air exhausts, the spring-applied lock maintains the 125 mm extended clamping position without drifting back.
Pallet Stop Gate
Acts as a mid-conveyor stop gate for heavy assemblies. The rod lock engages only after the cylinder stops, locking the 20 mm rod solid to withstand 2200 N of impact force during E-stops.
Is the Airtac BSE Clamp Standard Cylinder BSE63X125 the Right Cylinder?
Verify your suspended load requires 2200 N or less of holding force, and that the 125 mm stroke covers your travel. If you need less holding power, the 50 mm bore offers 982 N push at 0.5 MPa and 1400 N holding force. If your load exceeds this unit, step up to the 80 mm bore, which provides 2513 N push at 0.5 MPa and 3600 N holding force. Always balance pressures on both sides of the piston before releasing the lock, and allow at least 0.5 seconds for full release before commanding motion.
When replacing a unit, match the 63 mm bore, 125 mm stroke, PT3/8 cylinder port, and specific mounting code. Because this SKU has no magnet, you cannot add position sensors without changing the cylinder. The 125 mm stroke is short enough that side-load risks are minimal, but you should still ensure the load is guided to prevent binding.
Quick checklist
- ✓ Load to hold ≤ 2200 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 BSE63X125 FAQ
The lock is spring-applied and air-released, meaning it clamps the rod automatically during air loss or E-stop to provide a 2200 N static holding force. The drive forces are 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, with a maximum drive force of 222 kgf.
You must first balance the air pressures on both sides of the piston so the rod is not fighting a load imbalance. Then supply 0.15-0.7 MPa to the separate G1/8 release port, and wait at least 0.5 seconds for the collet to fully retract before commanding the cylinder to move.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC BSE Cylinders
Request a Quote for Airtac BSE Clamp Standard Cylinder BSE63X125
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.