Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X160S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X160S is a genuine double-acting ISO 15552 profile cylinder with a Ø80mm bore, 160mm 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.
- BoreØ80 mm
- Stroke160 mm
- Port sizeG3/8
- 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 SAILF80X160S
The AirTAC SAILF80X160-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 pin into the rod to hold the load securely at the extended stroke end without requiring live pressure. This 80mm bore generates 2513N of thrust at 0.5 MPa, utilizing a 25mm carbon steel rod and M20x1.5 threading for robust side-load resistance.
Equipped with a magnet for position sensing, it is fully compatible with AirTAC CMSE reed and DMSE electronic sensors. The variable air cushion at the locker end is 22.5mm, intentionally shorter than the 36mm cushion on the free end to accommodate the locking mechanism. You can unlock the rod automatically by supplying air to the release port or by using the manual override lever.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X160S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X160S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø80 mm |
| Stroke | 160 mm |
| Acting type | Double acting, with lock |
| Port size | G3/8 |
| 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 / 22.5 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SAILF80X160S Is Used
Extended Lift Holding
Maintains a vertical load in the raised extended position during a power loss, relying on the spring-applied lock rather than continuous air pressure.
Flow Control Gate
Secures a diverter gate open at the end of the stroke to halt product flow safely without consuming pneumatic energy.
Clamp and Hold
Extends to clamp a workpiece and mechanically locks the rod outward, ensuring the part remains held even if the main air supply drops.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X160S the Right Lock Cylinder?
Select this 80mm bore when an application demands 2513N of push force at 0.5 MPa, stepping up from a 63mm bore that provides 1559N. Choose the SAILF configuration specifically when the load must be safely held in the extended rod-out position. If your machine requires clamping at an arbitrary mid-stroke point rather than the stroke terminal, the BSAI clamp-lock cylinder is the correct alternative.
Remember that this is a static holding lock that engages only after the cylinder stops, not a dynamic brake for a moving rod. Avoid using fast-exhaust valves, as back-pressure on the front locker side can inadvertently release the lock; always use an independent-exhaust solenoid valve. For any safety-critical lifting application, add an independent mechanical safety measure alongside the lock. To replace this unit, match the 80mm bore, 160mm stroke, front locker position, PT tapered port threads, and the -S magnet option.
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 SAILF80X160S FAQ
This 80mm bore cylinder provides 2513N of push force and 2268N of pull force at 0.5 MPa. At 0.7 MPa, the push force increases to 3518N, and it reaches a maximum push force of 4523N at 0.9 MPa.
The lock is spring-applied and air-released, engaging automatically when the piston reaches the extended stroke end to hold the load statically. It unlocks by supplying air to the release port or via the manual lever. It does not clamp at mid-stroke and is not a dynamic brake.
Related AirTAC Lock & Standard Cylinders
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