Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500 is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm bore, 500mm 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
- Stroke500 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 SAILF200X500
The AirTAC SAILF200X500 is a double-acting ISO 15552 profile cylinder equipped with 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 continuous air pressure. In the 200mm bore class, it generates a robust push force of 15708N and a pull force of 15080N at 0.5MPa, making it well-suited for heavy-duty holding tasks.
Because the lock occupies the front end, the variable air cushion on that side is notably shorter, measuring 28mm compared to the 50mm cushion on the free end. The standard carbon steel rod provides excellent side-load resistance, and the cylinder operates at speeds of 30-500mm/s. For position sensing, adding a -S magnet enables the use of AirTAC CMSE reed or DMSE electronic sensors.
When selecting this model, verify if the application requires holding at the fully extended rod-out position, as this SAILF variant differs from the SAILB type which locks at the retracted end. If the machinery demands clamping at an arbitrary mid-stroke point rather than the stroke terminal, the BSAI clamp-lock cylinder is the correct alternative. It is crucial to remember that the SAIL lock is a static holding device that engages only after the rod stops; it will not brake a moving load.
For a 500mm stroke on a large bore, incorporating external guide rails is recommended to prevent excessive deflection and protect the rod seals from side-loading. Always pair this cylinder with an independent-exhaust solenoid valve, as using a fast-exhaust valve can create back-pressure on the locker side and inadvertently release the lock. If human safety relies on the load remaining elevated, implement an additional independent mechanical safety measure. Replacement parts must match the 200mm bore, 500mm stroke, front locker position, PT port threads, and the chosen mounting style.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 500 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 SAILF200X500 Is Used
Heavy Lift Holding
Secures massive vertical loads in the extended position during power loss, preventing sudden drops in heavy lifting machinery.
Press Clamp Station
Maintains high-pressure clamping force at the stroke end without consuming continuous air, ideal for heavy press operations.
Safety Gate Lock
Keeps large industrial safety gates and barriers firmly locked in the open or extended state until release air is supplied.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500 the Right Lock Cylinder?
The AirTAC SAILF200X500 is a double-acting ISO 15552 profile cylinder equipped with 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 continuous air pressure. In the 200mm bore class, it generates a robust push force of 15708N and a pull force of 15080N at 0.5MPa, making it well-suited for heavy-duty holding tasks.
Because the lock occupies the front end, the variable air cushion on that side is notably shorter, measuring 28mm compared to the 50mm cushion on the free end. The standard carbon steel rod provides excellent side-load resistance, and the cylinder operates at speeds of 30-500mm/s. For position sensing, adding a -S magnet enables the use of AirTAC CMSE reed or DMSE electronic sensors.
When selecting this model, verify if the application requires holding at the fully extended rod-out position, as this SAILF variant differs from the SAILB type which locks at the retracted end. If the machinery demands clamping at an arbitrary mid-stroke point rather than the stroke terminal, the BSAI clamp-lock cylinder is the correct alternative. It is crucial to remember that the SAIL lock is a static holding device that engages only after the rod stops; it will not brake a moving load.
For a 500mm stroke on a large bore, incorporating external guide rails is recommended to prevent excessive deflection and protect the rod seals from side-loading. Always pair this cylinder with an independent-exhaust solenoid valve, as using a fast-exhaust valve can create back-pressure on the locker side and inadvertently release the lock. If human safety relies on the load remaining elevated, implement an additional independent mechanical safety measure. Replacement parts must match the 200mm bore, 500mm stroke, front locker position, PT port threads, and the chosen mounting style.
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 SAILF200X500 FAQ
At a 0.5MPa operating pressure, the 200mm bore provides a push force of 15708N and a pull force of 15080N. At the maximum 1.0MPa pressure, it achieves a push force of 3204 kgf.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end. It holds statically after the rod stops and is unlocked via air supply or a manual lever, but it cannot clamp at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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