Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X800S
The AirTAC SAILF Front Locking Pneumatic Cylinder SAILF100X800S is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 800mm 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.
- BoreØ100 mm
- Stroke800 mm
- Port sizeG1/2
- Lock positionFront cover
- Rod threadM20×1.5
- 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 SAILF100X800S
The AirTAC SAILF100X800-S is a double-acting ISO 15552 profile cylinder equipped with a mechanical lock in the front cover, engineered to secure the rod at the fully extended stroke end. Featuring a carbon steel rod and a magnetic piston (-S) for precise position sensing via CMSE reed or DMSE electronic switches, it delivers robust power with 5497N push force at 0.7MPa and 3927N at 0.5MPa. The lock is spring-applied and air-released, meaning it engages automatically upon loss of release pressure to hold the load safely without live air.
Because the lock occupies the front end, the variable air cushion on that side is shorter at 24mm compared to the 36mm cushion on the free rear end. It operates at speeds of 30-800mm/s and uses a 1/2-inch PT port. This design provides true static holding at stroke termination, not a dynamic brake for a moving rod.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X800S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X800S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 800 mm |
| Acting type | Double acting, with lock |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable (36 mm free end / 24 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SAILF100X800S Is Used
Extended Load Holding
Secures vertical lifts and elevated platforms in the extended position, preventing collapses if air pressure drops unexpectedly.
Flow Control Gates
Holds heavy material flow gates open at the end of the 800mm stroke without consuming continuous compressed air.
Power-Loss Safety
Maintains protective barriers and machine guards in the extended out position during emergency power or air failures.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X800S the Right Lock Cylinder?
Choose this 100mm bore when substantial thrust is required, stepping up from an 80mm cylinder that yields 3518N at 0.7MPa, or down from a 125mm unit offering 8590N. Select the SAILF configuration specifically when the load must be held safely at the extended position, whereas a SAILB variant secures the retracted rod. If your application requires clamping at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct choice.
For an 800mm stroke, external guide rails are strongly recommended to prevent excessive side-loading on the rod. Remember that this lock is a static holding device; avoid using fast-exhaust valves, as back-pressure on the locker side can inadvertently release the lock—use an independent-exhaust solenoid valve instead. For human-safety critical lifting applications, always add an independent mechanical safety measure. Replacement specifications must match the 100mm bore, 800mm stroke, front locker, 1/2-inch PT port, and -S magnet.
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 SAILF100X800S FAQ
At 0.5MPa, it provides 3927N of push force and 3681N of pull force. At 0.7MPa, the push force increases to 5497N.
The lock is spring-applied and air-released, holding the rod statically only at the extended stroke end. It unlocks automatically via air supply or manually via a lever, but it is not a mid-stroke clamp or a dynamic brake.
Related AirTAC Lock & Standard Cylinders
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