Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X500
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X500 is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm 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.
- BoreØ100 mm
- Stroke500 mm
- Port sizeG1/2
- Lock positionFront cover
- Rod threadM20×1.5
- UnlockAir + manual
About the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X500
The AirTAC SAILF100X500 is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock housed in the front cover. Because it is a SAILF variant, the spring-applied, air-released lock engages when the piston reaches the extended stroke end, securely holding the rod out without requiring continuous live air pressure. Delivering a robust 5497N of push force at 0.7MPa, this carbon-rod cylinder is designed for heavy-duty load retention on power loss.
A key mechanical detail is that the variable air cushion at the locker end is shorter (24mm) than the standard 36mm cushion on the non-locking end. The lock itself is a static holding device that engages only after the cylinder stops; it is not a dynamic brake. For position feedback, adding a magnet allows the use of CMSE reed or DMSE solid-state sensors in the dual-side barrel grooves.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X500 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X500 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAILF100X500 Is Used
Overhead Lift Hold
Maintains vertical lifting platforms securely at the extended top position during a power loss, preventing unintended gravity-driven descent.
Pallet Divertor Stop
Locks a diverter arm out at the end of stroke to halt heavy pallet traffic without consuming continuous pneumatic energy.
Safety Gate Barrier
Keeps a protective machine guard extended and firmly locked until the release air is actively supplied for safe access.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X500 the Right Lock Cylinder?
Choose this 100mm bore when substantial thrust is required, stepping up from the 80mm bore which provides 3518N of push force at 0.7MPa, or stepping down from the 125mm bore which yields 8590N. Select the SAILF configuration when the application demands the load be held at the extended rod-out position; for retracted holding, the SAILB variant is required. If your process requires clamping at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct choice.
With a 500mm stroke, external guide rails are strongly recommended to prevent excessive side-load wear on the seals and rod. The lock holds statically at the stroke terminal, so never use a fast-exhaust valve with this cylinder; always opt for an independent-exhaust solenoid valve, as back-pressure on the locker side can unintentionally release the lock. For human-safety critical overhead loads, add an independent mechanical safety measure. Replacement requires matching the 100mm bore, 500mm stroke, front locker position, 1/2-inch PT ports, 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 SAILF100X500 FAQ
At 0.7MPa operating pressure, the 100mm bore generates 5497N of push force and 3681N of pull force. At its maximum 1.0MPa pressure, it achieves up to 801kgf of thrust.
The lock is spring-applied and air-released, engaging only when the rod reaches the fully extended stroke end. It provides a static hold, not a dynamic brake. Unlocking is done automatically via the release port or by using the manual release lever.
Related AirTAC Lock & Standard Cylinders
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