Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100S is a genuine double-acting ISO 15552 profile cylinder with a Ø63mm bore, 100mm stroke and a built-in spring-applied, air-released mechanical lock in the front cover — it holds the load at the extended (rod-out) stroke end even when air is lost.
- BoreØ63 mm
- Stroke100 mm
- Port sizeG3/8
- Lock positionFront cover
- Rod threadM16×1.5
- UnlockAir + manual
- 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 SAILF Front Locking Pneumatic Cylinder SAILF63X100S
The AirTAC SAILF63X100-S is a double-acting ISO 15552 profile cylinder with a built-in mechanical lock in the front cover. Because the lock is spring-applied and air-released, it safely holds the rod at the extended stroke end without requiring live pressure. In the 63mm bore class, it provides a robust 2182N of push force at 0.7MPa, making it highly effective for intermediate load-holding tasks. The included -S magnet enables precise position detection using CMSE reed or DMSE electronic solid-state sensors.
A distinct mechanical feature of this locker-end design is its shorter variable air cushion (21mm) compared to the free end (30mm), as the locking mechanism consumes internal space. The lock engages statically only after the piston reaches the extended terminal, meaning it will not arrest a moving rod mid-cycle. For unlocking, operators can supply air to the release port for automatic retraction or use the manual override lever.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø63 mm |
| Stroke | 100 mm |
| Acting type | Double acting, with lock |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| Lock type | Spring-applied, air-released (front cover) |
|---|---|
| Unlock | Automatic (air) & manual |
| Operating pressure | 0.15 – 1.0 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable (30 mm free end / 21 mm lock end) |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAIL datasheet (ISO 15552). Confirm against the product label before installation. Port options: PT / G.
How the Lock Holds
The lock is spring-applied and air-released: a spring drives a lock pin into the rod when the release air is removed, so the load is held at the extended (rod-out) stroke end without live pressure. Supply air to the release port to unlock automatically, or use the manual release lever.
The lock engages only when the piston reaches the stroke terminal on the front-cover side — it is a static end-of-stroke hold, not a mid-stroke clamp and not a moving-rod brake. For locking at any position along the stroke, choose a BSAI clamp-lock instead.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Cylinder thrust is separate from the lock's holding capability. Actual usable force is lower than theoretical due to friction and back-pressure — size with a margin.
Where the Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100S Is Used
Extended Load Holding
Secures vertical lifts and gates in the extended rod-out position, preventing gravity-driven drops during a sudden compressed air loss.
End-of-Stroke Clamping
Maintains static clamping force on a workpiece at the full stroke extension without continuously consuming compressed air.
Power-Failure Safety
Locks the piston instantly upon air loss at the front terminal, ensuring heavy suspended loads remain safely extended.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100S the Right Lock Cylinder?
Choose this 63mm bore when a 50mm bore (offering 1374N push at 0.7MPa) lacks the necessary thrust, but a larger 80mm bore (3518N push) would be excessive overkill. Select the SAILF front-locker variant specifically when the load must be secured in the extended rod-out position, whereas a SAILB back-locker variant holds the retracted position. If your application requires clamping at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct choice instead.
When integrating this cylinder, avoid using a fast-exhaust valve, as back-pressure on the locker side can inadvertently release the lock; an independent-exhaust solenoid valve is required. The PT tapered port threads match standard pneumatic fittings, and the full ISO 15552 mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, FTC, TCM1, TCM2) provides flexible installation. Always confirm the specific lock holding force from the official datasheet, and if human safety depends on the load remaining extended, add an independent safety measure.
Quick checklist
- ✓ Hold needed at the extended (rod-out) end?
- ✓ Or lock anywhere → use BSAI
- ✓ Independent-exhaust valve fitted
- ✓ Port/thread type (PT/G)
- ✓ Extra safety measure for people
Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100S FAQ
The 63mm bore generates 1559N push and 1402N pull at 0.5MPa, and 2182N push at 0.7MPa. The maximum thrust is 318kgf at 1.0MPa.
The lock is spring-applied and air-released, engaging statically only when the piston reaches the extended stroke end. It unlocks automatically via air pressure to the release port or manually via the override lever.
Related AirTAC Lock & Standard Cylinders
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