Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175 is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 175mm 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
- Stroke175 mm
- Port sizeG1/2
- Lock positionFront cover
- Rod threadM20×1.5
- 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 SAILF100X175
The AirTAC SAILF100X175 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock housed in the front cover. This lock engages automatically when the piston reaches the extended stroke end, securely holding the load without relying on continuous live air pressure. Delivering a robust 5497N of push force at 0.7 MPa, it utilizes a 25mm carbon steel rod and a 1/2-inch PT port.
Because the lock occupies the front end, the variable air cushion on that side is notably shorter at 24mm compared to the 36mm cushion on the free back end. The unit is built on an extruded aluminum barrel and supports AirTAC CMSE reed and DMSE solid-state sensors when a magnet is specified. For unlocking, you can supply air to the release port for automatic retraction or use the manual override lever.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 175 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 SAILF100X175 Is Used
Extended Load Holding
Maintains vertical loads securely at the extended rod-out position during power loss, preventing gravity-driven collapses without needing continuous air pressure.
End-Stroke Clamping
Secures a workpiece or tool at the full forward stroke end, providing a stable, pressure-free hold during machining or processing cycles.
Lift and Gate Safety
Acts as a fail-safe lock on lifted gates and heavy doors, engaging automatically at the extended terminal to prevent accidental falls.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175 the Right Lock Cylinder?
Choose this 100mm bore when the 80mm class (3518N push at 0.7 MPa) is insufficient, or step down if the 63mm bore (2182N) meets your requirements. Select the SAILF front-locker configuration when your machinery must hold a load safely at the rod-out extended position; conversely, pick SAILB if the retracted rod-in position must be secured. If your application requires clamping at an arbitrary mid-stroke point rather than a stroke-end hold, the AirTAC BSAI clamp-lock cylinder is the correct choice.
Remember that the SAIL lock is a static holding device, not a dynamic brake for a moving rod. Avoid using fast-exhaust valves with this cylinder; instead, install an independent-exhaust solenoid valve, as back-pressure on the locker side can inadvertently release the lock. For any application where human safety depends on a suspended load staying up, always add an independent mechanical safety measure. Replacement parts must match the 100mm bore, 175mm stroke, front lock position, PT port threads, and standard mounting options like FA, FB, TC, or LB.
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 SAILF100X175 FAQ
At 0.7 MPa operating pressure, the push force is 5497N and the pull force is 3681N. At 0.5 MPa, it provides 3927N of push force and 3681N of pull force.
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 mid-stroke clamping. To unlock, supply air to the release port for automatic operation or use the manual release lever.
Related AirTAC Lock & Standard Cylinders
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