Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80S is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm 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.
- BoreØ160 mm
- Stroke80 mm
- Port sizeG3/4
- Lock positionFront cover
- Rod threadM36×2
- 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 SAILF160X80S
The AirTAC SAILF160X80-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released mechanical lock housed in the front cover. Because the lock sits forward, it secures the rod specifically at the extended stroke end, making it ideal for holding a load out rather than retracted. In the 160mm bore class, this actuator generates a substantial 10053N pull force at 0.5MPa and a 14074N push at 0.7MPa. The integrated -S magnet enables precise position detection when paired with AirTAC CMSE reed or DMSE solid-state sensors.
This model uses a carbon steel rod and PT tapered port threads. A critical design detail is that the variable air cushion at the locker end is shorter (28mm) than the standard free-end cushion (50mm), as the lock mechanism occupies axial space. The lock itself is a static holding device that engages only after the piston stops at the extended terminal; it is not a dynamic brake for a moving rod.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 80 mm |
| Acting type | Double acting, with lock |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable (50 mm free end / 28 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 SAILF160X80S Is Used
Extended Load Holding
Secures vertical loads safely at the extended stroke end during power loss, preventing gravity-driven drops in heavy lifting rigs.
Safety Gate Barrier
Holds a heavy safety barrier or guard in the open, extended position without relying on continuous air pressure to maintain the state.
Heavy Clamp and Hold
Maintains high-force clamping pressure on large fabricated parts at the end of the stroke while air pressure is removed.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80S the Right Lock Cylinder?
Choose this 160mm bore when you need heavy thrust beyond the 125mm class (which yields 6136N push at 0.5MPa), but step down to 125mm if 10053N is excessive for your payload. Select the SAILF configuration specifically when the extended position must be maintained during a power loss, whereas SAILB is used to hold the retracted state. If your application requires locking at an arbitrary mid-stroke point rather than the stroke terminal, the BSAI clamp-lock cylinder is the correct alternative.
For safe load holding, never use a fast-exhaust valve, as back-pressure on the locker side can unintentionally release the lock; an independent-exhaust solenoid valve is required. The lock holds the load statically without live air, unlike the air cushion which only decelerates the piston. For safety-critical lifting applications, always add an independent mechanical safety measure. Replacement requires matching the 160mm bore, 80mm stroke, front lock position, PT threads, and -S magnet.
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 SAILF160X80S FAQ
The 160mm bore generates a push force of 10053N and a pull force of 9425N at 0.5MPa. At 0.7MPa, the push force increases to 14074N.
The lock is spring-applied and air-released. It engages statically only when the piston reaches the extended stroke end in the front cover, and it does not clamp mid-stroke. Unlocking is done automatically via air supply or manually via the release lever.
Related AirTAC Lock & Standard Cylinders
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