Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200S is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm bore, 200mm 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.
- BoreØ200 mm
- Stroke200 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 SAILF200X200S
The AirTAC SAILF200X200-S is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock in the front cover. Because the lock is spring-applied and air-released, cutting the release air drives a lock pin into the carbon steel rod, securely holding the load at the extended stroke end without requiring live pressure. In the 200mm bore class, this actuator delivers a substantial 15708N of push force and 15080N of pull force at 0.5 MPa, making it ideal for heavy-duty power-loss safety scenarios.
This model includes a piston magnet for electronic DMSE or reed CMSE position sensing. The variable air cushion at the front locker end measures 28mm, which is intentionally shorter than the 50mm cushion at the rear free end to accommodate the locking mechanism. You can unlock the rod automatically by supplying air to the release port, or use the manual release lever during maintenance.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 200 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 (Ø200mm)
| 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.
Where the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200S Is Used
Vertical Lift Hold
Secures heavy elevated platforms at the extended stroke end instantly upon air pressure loss, preventing sudden drops.
Heavy Clamp Retention
Maintains maximum clamping force on large workpieces without consuming continuous compressed air.
Safety Gate Lock
Keeps heavy safety gates and industrial barriers firmly open during power or pneumatic failure events.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200S the Right Lock Cylinder?
Choose this 200mm bore when your application demands extreme thrust, such as lifting 3204 kgf at 1.0 MPa. If your force requirements are lower, stepping down to a 160mm bore yields 10053N of push at 0.5 MPa while saving footprint. Select the SAILF configuration when the load must remain suspended at the extended rod-out position; conversely, pick SAILB to hold the retracted rod-in position. If your machinery requires clamping at an arbitrary mid-stroke point rather than a stroke-end hold, the AirTAC BSAI clamp-lock cylinder is the correct alternative.
Remember that this lock engages statically after the cylinder stops; it is not a dynamic brake for a moving rod. Valve selection is critical: never use a fast-exhaust valve with this lock cylinder, as back-pressure on the locker side can unintentionally release the pin. Always use an independent-exhaust solenoid valve, and if human safety depends on the load staying extended, add an independent mechanical safety measure. This unit features PT tapered ports and a 200mm stroke, so ensure your mounting setup (Basic, FA, FB, CA, CB, CR, LB, TC, FTC, TCM1, or TCM2) adequately supports the rod against side loads.
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 SAILF200X200S FAQ
At 0.5 MPa, the push force is 15708N and the pull force is 15080N. At a maximum operating pressure of 1.0 MPa, it achieves a push force of 28274N, equivalent to 3204 kgf.
The lock is spring-applied and air-released, holding the rod statically at the extended front stroke end. It unlocks automatically via air supply or manually via a lever. It does not clamp mid-stroke; for any-position locking, use BSAI.
Related AirTAC Lock & Standard Cylinders
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