
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X600 is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 600mm 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.
The AirTAC SAILF160X600 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock housed in the front cover. This mechanism engages automatically when the piston reaches the extended stroke end, securely holding the load without requiring live pressure. It delivers a robust 14074N of push thrust at 0.7 MPa, making it well-suited for heavy-duty positioning tasks. The standard carbon steel rod provides excellent structural rigidity for demanding industrial environments.
Unlike a standard SAI cylinder, this SAILF model is built for power-failure safety. The lock is a static holding device that engages after the rod stops; it is not a dynamic brake for a moving load. To release the load, you can supply air to the release port for automatic unlocking or use the manual release lever. Note that the variable air cushion at the front locker end is 28 mm, which is intentionally shorter than the 50 mm cushion at the rear free end to accommodate the locking hardware.
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X600 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 600 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.
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.
| 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.
Secures heavy vertical loads in the fully extended position instantly if air pressure drops, preventing sudden crashes.
Maintains a pushed-out conveyor or diverter arm firmly in place without continuously consuming compressed air.
Locks a large pneumatic press ram at the bottom of its stroke end, ensuring the tooling stays extended during maintenance.
Select this 160 mm bore when an application requires moving a heavy load over a 600 mm stroke and holding it securely at the fully extended position. If your system only requires 10053N of push force at 0.7 MPa, stepping down to the 125 mm bore optimizes footprint and air consumption. Conversely, if the load must be clamped at an arbitrary mid-stroke position rather than the extended end, the BSAI clamp-lock cylinder is the correct choice. Because the 600 mm stroke amplifies leverage forces, using an external guide is highly recommended to prevent side-load damage to the rod seals.
When replacing this cylinder, verify the 160 mm bore, 600 mm stroke, and front locker position (SAILF). The fluid port is 3/4 PT, and the mounting interface supports Basic, FA, FB, CA, CB, CR, LB, TC, FTC, TCM1, and TCM2 brackets. Remember that the lock holds statically at the stroke end; if human safety depends on the load staying up, add an independent safety measure. Crucially, do not use a fast-exhaust valve with this lock cylinder; always use an independent-exhaust solenoid valve, as back-pressure on the locker side can unintentionally release the lock.
Quick checklist
At 0.7 MPa, this 160 mm bore cylinder provides 14074N of push thrust and 9425N of pull thrust. The maximum operating pressure is 1.0 MPa, and the operating speed range is 30-500 mm/s.
The lock is spring-applied and air-released, located in the front cover. It holds the rod statically at the extended stroke end only, not at mid-stroke. You can unlock it automatically by supplying air to the release port or manually via the release lever.
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