Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80 is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Lock positionFront cover
- Rod threadM20×1.5
- UnlockAir + manual
About the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80
The AirTAC SAILF100X80 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock housed in the front cover. Because the lock engages when the piston reaches the extended stroke end, it securely holds the rod-out position without requiring continuous live air pressure. In this 100mm bore class, the cylinder generates a substantial 3927N of push force and 3681N of pull force at 0.5 MPa, making it well-suited for heavy vertical lifting and holding tasks.
A key design detail is the variable air cushioning: the cushion at the locker end measures 24mm, which is intentionally shorter than the 36mm cushion on the free end to accommodate the locking mechanism. The standard carbon steel rod provides robust side-load resistance, and the extruded aluminum barrel is dimensionally interchangeable per ISO 15552 mounting interfaces. Remember that this is a static holding lock that engages after the cylinder stops; it is not a dynamic mid-stroke brake.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAILF100X80 Is Used
Vertical Lift Holding
Secures heavy elevated loads in the extended position automatically upon air pressure loss, preventing sudden drops in lifting rigs.
Safety Gate Locking
Holds safety gates and heavy guard doors firmly open at the end of the stroke until the air-release port is actively pressurized.
End-of-Stroke Clamping
Maintains robust clamping force on large workpieces at the extended terminal position without consuming continuous pneumatic energy.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X80 the Right Lock Cylinder?
Select this 100mm bore model when an application demands high force at the extended stroke end, stepping up from an 80mm bore that provides 2513N push at 0.5 MPa. Choose the SAILF configuration specifically when the load must be secured in the rod-out position; if your process requires holding the load retracted, the SAILB variant is the correct choice. For applications needing the rod clamped at an arbitrary mid-stroke point rather than the stroke terminal, the BSAI clamp-lock cylinder should be used instead.
When integrating this cylinder, avoid using fast-exhaust valves, as back-pressure on the locker side can inadvertently release the lock; always utilize an independent-exhaust solenoid valve. The unit features PT tapered ports sized at 1/2 inch and operates effectively between 30-800 mm/s. If human safety relies on the load remaining elevated, always incorporate an independent secondary safety measure alongside the lock. Replacement units must match the 100mm bore, 80mm stroke, front locker position, and port size.
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 SAILF100X80 FAQ
At a standard operating pressure of 0.5 MPa, this 100mm bore cylinder generates a push force of 3927N and a pull force of 3681N. At 0.7 MPa, the push force increases to 5497N.
The lock is spring-applied and air-released, engaging only when the rod reaches the extended stroke end in the front cover. It provides a static hold after the cylinder stops, and you can unlock it automatically via the release port or by using the manual release lever.
Related AirTAC Lock & Standard Cylinders
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