Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X350S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X350S is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 350mm 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.
- BoreØ100 mm
- Stroke350 mm
- Port sizeG1/2
- Lock positionFront cover
- Rod threadM20×1.5
- UnlockAir + manual
About the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X350S
The AirTAC SAILF100X350-S is a double-acting ISO 15552 profile cylinder equipped with a built-in mechanical lock in the front cover. Because the lock is spring-applied and air-released, cutting the release air drives a lock pin into the rod, securely holding the load at the extended stroke end without relying on live pressure. In this 100mm bore configuration, the cylinder generates 5497N of push force at 0.7 MPa, making it well-suited for heavy-duty positioning tasks.
This model includes a magnetic piston (-S) for position sensing with AirTAC CMSE reed or DMSE electronic sensors. A notable design detail is the variable air cushion: the cushion at the locker end measures 24mm, which is shorter than the 36mm cushion on the free end. This cushion only decelerates the stroke near the terminal point; the mechanical lock is the sole device responsible for static load holding. The standard carbon steel rod and PT tapered port threads ensure robust, leak-free pneumatic connections.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X350S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X350S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 350 mm |
| Acting type | Double acting, with lock |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 (36 mm free end / 24 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SAILF100X350S Is Used
Extended Stroke Lifting
Holds a lifted platform securely at the extended rod-out position on power loss, preventing sudden drops.
Heavy Press Hold
Maintains 5497N of pressing force at the extended stroke end without consuming continuous air pressure.
Safety Gate Lock
Keeps a protective barrier open and locked at the full extended position until the release air is restored.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X350S the Right Lock Cylinder?
Select this 100mm bore cylinder when an application demands 5497N of thrust at 0.7 MPa to move a load and requires a fail-safe hold at the extended stroke end. If your force requirements are lower, the 80mm bore offers 3518N at 0.7 MPa; if you need more power, the 125mm bore provides 8590N. Choose the SAILF front-locker variant specifically when the rod must remain safely extended during a power loss. If the mechanism instead requires clamping at an arbitrary mid-stroke position, the AirTAC BSAI clamp-lock cylinder is the correct choice, as the SAIL lock only engages at the stroke terminal.
When implementing this 350mm stroke model, account for potential side loads by utilizing external guide rails to prevent rod binding. Remember that the SAIL lock is a static holding device, not a dynamic brake that stops a moving rod. To ensure the lock remains engaged, never use a fast-exhaust valve; back-pressure on the locker side can accidentally release the lock, so an independent-exhaust solenoid valve is required. For any human-safety-critical lifting application, always add an independent mechanical safety measure. To replace this unit, match the 100mm bore, 350mm stroke, front locker position, PT port threads, and the -S magnet option.
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 SAILF100X350S FAQ
This 100mm bore cylinder provides a push force of 5497N at 0.7 MPa and 7068N at 0.9 MPa. The pull force is 3681N at 0.7 MPa.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end in the front cover. It provides a static hold, not a dynamic brake. You can unlock it automatically by supplying release air or by using the manual release lever.
Related AirTAC Lock & Standard Cylinders
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