
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X160S is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 160mm 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 SAILF160X160-S is a double-acting ISO 15552 profile cylinder equipped with a mechanical lock in the front cover. Because the lock is spring-applied and air-released, it automatically engages to hold the rod at the extended stroke end whenever release air is removed or pressure drops. This guarantees secure load retention without consuming live air. Delivering 10053N pull force at 0.5MPa, this bore uses a robust 40mm carbon steel rod and a 3/4 PT port to handle heavy industrial loads.
Unlike a plain SAI cylinder, this model features a shorter 28mm variable air cushion at the locker end compared to the 50mm cushion on the free end, ensuring smooth deceleration before the lock engages. For position feedback, the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE solid-state sensors. Remember that this lock is a static holding device for stopped loads, not a dynamic brake for a moving rod.
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X160S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 160 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 elevated heavy loads in the extended position instantly upon power loss, preventing sudden drops in lifting machinery.
Keeps heavy safety gates and machine guards firmly open at the end of stroke until the air-release signal is actively supplied.
Maintains robust outward clamping pressure on large parts without continuous air consumption, locking immediately upon reaching the extended end.
Choose this 160mm bore when you need substantial holding power at the extended stroke end, offering 14074N push at 0.7MPa. If your application requires less force, stepping down to a 125mm bore yields 6136N push at 0.5MPa, whereas moving up to a 200mm bore provides 15708N push at 0.5MPa. Select SAILF to hold the rod out and SAILB to hold it retracted. If you need to clamp the load at an arbitrary mid-stroke position rather than the stroke terminal, choose the BSAI clamp-lock cylinder instead.
For safe operation, never use a fast-exhaust valve with this lock cylinder; use an independent-exhaust solenoid valve to prevent back-pressure on the locker side from accidentally releasing the lock. If human safety depends on the load staying extended, always add an independent safety measure. To replace this unit, match the 160mm bore, 160mm stroke, front lock position, 3/4 PT port, and -S magnet. Standard mounting options include Basic, FA, FB, CA, CB, CR, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.5MPa, this 160mm bore cylinder provides 10053N push force and 9425N pull force. At the maximum operating pressure of 1.0MPa, it delivers a maximum push force of 2050kgf.
The lock is spring-applied and air-released, holding the rod securely at the extended stroke end when air is removed. You can unlock it automatically by supplying air to the release port or by using the manual release lever. It is a static hold for stopped loads, not a dynamic brake.
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