Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80 is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm 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.
- BoreØ160 mm
- Stroke80 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 SAILF160X80
The AirTAC SAILF160X80 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, it automatically secures the piston rod at the extended stroke end whenever release air is cut, holding the load without live pressure. With a robust 160mm bore generating 10053N of thrust at 0.5 MPa, this carbon steel rod unit is built for heavy-duty power-loss safety.
The lock engages as a static hold after the cylinder stops, rather than acting as a dynamic brake for a moving rod. Notably, the variable air cushion at the locker end is 28mm, intentionally shorter than the 50mm cushion on the free end. You can unlock the rod automatically by supplying air to the release port or by using the manual release lever.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 80 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 SAILF160X80 Is Used
Overhead Lift Safety
Secures elevated heavy loads at the extended stroke end instantly upon air pressure loss, preventing sudden drops in lifting jibs.
Heavy Press Hold
Maintains maximum clamping force on large fabricated parts during power interruptions without needing continuous compressed air.
Gate Barrier Lock
Holds heavy industrial safety gates firmly open at the full extended position until a deliberate air release signal is given.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X80 the Right Lock Cylinder?
Choose this 160mm bore for high-force tasks up to 10053N push at 0.5 MPa; if your application requires less force, stepping down to the 125mm bore yields 6136N. Select the SAILF configuration when the load must be secured at the extended rod-out position, whereas a SAILB variant holds the retracted position. 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.
For safe operation, avoid using a fast-exhaust valve with this lock cylinder, as back-pressure on the locker side can unintentionally release the lock; use an independent-exhaust solenoid valve instead. If human safety depends on the load remaining extended, add an independent safety measure. To replace this unit, match the 160mm bore, 80mm stroke, front locker position, PT port threads, and standard mounting options like FA, FB, or TC.
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 SAILF160X80 FAQ
At 0.5 MPa operating pressure, the 160mm bore provides 10053N of push force and 9425N of pull force. The maximum operating pressure is 1.0 MPa.
The lock is spring-applied and air-released, holding the rod statically at the extended stroke end when air is cut. It unlocks automatically via release air or manually via a lever, but it cannot clamp at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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