Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80S is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Lock positionFront cover
- Rod threadM20×1.5
- UnlockAir + manual
About the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80S
The AirTAC SAILF100X80-S is a double-acting ISO 15552 profile cylinder equipped with a magnetic piston and a spring-applied, air-released mechanical lock housed in the front cover. Because the lock engages when the piston reaches the extended stroke-end, it secures the rod-out position and safely holds the load without relying on live air pressure. Delivering 5497N of push force at 0.7 MPa, this carbon-rod unit is built for heavy-duty holding tasks.
This front-locker variant features a 25mm carbon steel rod with an M20x1.5 thread and a 1/2 PT port. A notable design trait is that the variable air cushion at the locker end is shorter (24mm) than the free-end cushion (36mm), ensuring the locking pin engages cleanly. The integrated magnet supports AirTAC CMSE reed and DMSE solid-state sensors for precise end-position detection.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAILF100X80S Is Used
Extended Load Holding
Secures vertical lifts and elevated platforms in the rod-out position during power loss, preventing gravity-driven drops.
Clamp and Hold
Maintains clamping force on machined parts at the extended stroke end without continuously consuming compressed air.
Safety Gate Locking
Keeps heavy safety gates and access barriers firmly open at full extension until the release air is supplied.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80S the Right Lock Cylinder?
Choose this 100mm bore when a 80mm bore (3518N push at 0.7 MPa) is insufficient to move your load, or drop to an 80mm bore if your payload is lighter. Select the SAILF front-locker configuration when you need the rod secured in the extended position; choose SAILB if the retracted rod-in state must be held. If your application requires clamping at an arbitrary mid-stroke point rather than a stroke-end hold, use the AirTAC BSAI clamp-lock cylinder instead.
The lock is a static holding device that engages after the cylinder stops, not a dynamic brake for a moving rod. Never use a fast-exhaust valve with this cylinder, as back-pressure on the locker side can unintentionally release the spring-applied lock; always use an independent-exhaust solenoid valve. For applications where human safety depends on the load staying up, add an independent mechanical safety measure. To replace this unit, match the 100mm bore, 80mm stroke, front locker position, 1/2 PT port, 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 SAILF100X80S FAQ
The 100mm bore generates a push force of 5497N at 0.7 MPa and a pull force of 3681N at 0.7 MPa. The maximum operating pressure is 1.0 MPa.
The lock is spring-applied and air-released, engaging automatically when the rod reaches the extended stroke end to hold the load without live pressure. It unlocks by supplying air to the release port or by using the manual release lever. It only holds at this stroke end, not at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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