
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X100 is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm bore, 100mm 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 SAILF200X100 is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock in the front cover. Because this is a SAILF variant, the spring-applied, air-released lock engages only when the piston reaches the extended stroke end, securely holding the rod-out position. It delivers massive thrust, pushing with 15708N and pulling with 15080N at 0.5 MPa, making it ideal for heavy-duty load control.
The lock operates automatically via air release, or manually via an override lever, and provides a static hold without needing live pressure. To ensure proper deceleration, the variable air cushion at the locker end is 28 mm, notably shorter than the 50 mm cushion on the free end. The carbon steel rod has an M36x2 thread, and the 3/4 PT port handles the high flow required for this large bore.
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X100 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 100 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 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.
Maintains massive clamping force on large hydraulic or pneumatic presses during power loss by locking the rod securely in the extended position.
Prevents heavy lifted materials from crashing down by mechanically locking the extended rod when air pressure drops, ensuring operator safety.
Holds heavy industrial gates or doors open at full extension without consuming compressed air, unlocking only when the release port is pressurized.
Choose this 200 mm bore when your application requires extreme holding force at the fully extended position; if you need less force, the 160 mm bore offers 10053N push at 0.5 MPa. Select the SAILF configuration specifically when gravity or external forces must be prevented from retracting the rod. If your process requires clamping at an arbitrary mid-stroke point instead of the stroke end, the BSAI clamp-lock cylinder is the correct choice.
Remember that the lock is a static holding device, not a dynamic brake for a moving rod. Valve selection is critical: never use a fast-exhaust valve with this cylinder, as back-pressure on the locker side can unintentionally release the lock; an independent-exhaust solenoid valve is required. For safety-critical suspended loads, add an independent mechanical safety measure. Replacement requires matching the 200 mm bore, 100 mm stroke, front locker position, 3/4 PT port, and your preferred mounting style.
Quick checklist
At 0.5 MPa, the push force is 15708N and the pull force is 15080N. At 0.7 MPa, the push force increases to 21991N, and the maximum push force at 1.0 MPa is 3204 kgf.
The lock is spring-applied and air-released, engaging statically when the piston reaches the extended stroke end. It holds the load without live pressure and unlocks automatically via air supply or manually via a lever; it does not clamp mid-stroke.
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