Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X350S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X350S is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm 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.
- BoreØ160 mm
- Stroke350 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 SAILF160X350S
The AirTAC SAILF160X350-S is a double-acting ISO 15552 profile cylinder equipped with a mechanical lock in the front cover, engineered to secure the rod at the extended stroke end. A spring-applied, air-released locking pin engages automatically when the piston reaches the forward terminal, holding the load without relying on live pressure. In the 160mm bore class, it generates a substantial 14074N of push force at 0.7 MPa, making it suitable for heavy-load positioning. The standard carbon steel rod provides durable service in industrial environments, and the included magnet enables position feedback via CMSE reed or DMSE electronic sensors.
This model features a PT tapered port thread and a variable air cushion on both ends, though the locker-end cushion is notably shorter at 28mm compared to the 50mm cushion on the free end. The lock is a static holding device, meaning it engages only after the cylinder has fully stopped at the stroke terminal. To release the load, you can supply air to the release port for automatic unlocking or use the manual release lever.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X350S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X350S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 350 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 SAILF160X350S Is Used
Overhead Lift Hold
Secures heavy vertical lifts in the extended position during power loss, preventing sudden drops.
Pallet Stopper
Locks a stopper blade out into a conveyor line to halt heavy pallets without needing continuous air pressure.
Safety Gate Lock
Holds a heavy industrial safety gate open at the extended stroke end until air is supplied to release.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X350S the Right Lock Cylinder?
Select this 160mm bore cylinder when an application requires holding a heavy load safely at the extended stroke end without consuming continuous air. If your force requirements are lower, stepping down to the 125mm bore yields 8590N of push at 0.7 MPa. Conversely, if you need to secure the load in the retracted position, the SAILB version is the correct choice. For applications that demand locking at an arbitrary mid-stroke point rather than a stroke terminal, the BSAI clamp-lock cylinder is the appropriate solution.
Because the stroke is 350mm, ensure adequate guide support to prevent excessive side loads on the rod and front cover. The lock holds statically at the stroke end and is not a dynamic brake for a moving rod. Avoid using fast-exhaust valves with this cylinder; instead, use an independent-exhaust solenoid valve, as back-pressure on the locker side can inadvertently release the lock. If human safety relies on the load remaining extended, implement an independent mechanical safety measure. Replacement requires matching the 160mm bore, 350mm stroke, front lock position, 3/4 PT port, and the -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 SAILF160X350S FAQ
At 0.7 MPa, this 160mm bore cylinder provides 14074N of push force and 9425N of pull force. The maximum operating pressure is 1.0 MPa.
The lock is spring-applied and air-released, located in the front cover to hold the rod securely at the extended stroke end. It engages statically after the cylinder stops. You can unlock it automatically by supplying air to the release port or manually via the release lever.
Related AirTAC Lock & Standard Cylinders
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