Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X160S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X160S is a genuine double-acting ISO 15552 profile cylinder with a Ø63mm 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.
- BoreØ63 mm
- Stroke160 mm
- Port sizeG3/8
- Lock positionFront cover
- Rod threadM16×1.5
- 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 SAILF63X160S
The AirTAC SAILF63X160-S is a double-acting ISO 15552 profile cylinder equipped with a carbon steel rod and 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 securely hold the load at the extended stroke end without consuming live pressure. In this 63mm bore class, it generates 1559N of push force and 1402N of pull force at 0.5 MPa.
This model includes a magnet (-S) for position sensing with AirTAC CMSE reed or DMSE electronic solid-state switches. A notable design trait is that the variable air cushion at the locker end is shorter (21mm) than the free end (30mm); this cushion only decelerates the piston near stroke termination, while the actual load holding is performed entirely by the mechanical lock.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X160S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X160S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø63 mm |
| Stroke | 160 mm |
| Acting type | Double acting, with lock |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 (30 mm free end / 21 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SAILF63X160S Is Used
Extended Lift Holding
Secures vertical lifts in the rod-out position during a power loss, preventing gravity-driven drops without needing continuous air pressure.
End-of-Stroke Clamping
Maintains positive holding force on a workpiece at the full extension terminal, ensuring components remain fixed during machining or processing.
Gate and Guard Safety
Keeps heavy safety gates and machine guards locked open at the extended stroke end until the air-release port is actively pressurized.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X160S the Right Lock Cylinder?
Choose this 63mm bore when an application requires 1559N of thrust at 0.5 MPa; step down to a 50mm bore (982N push) for lighter duties, or up to an 80mm bore (2513N push) for heavier payloads. Select this SAILF variant when the load must be secured in the extended, rod-out position, and pick SAILB instead if the retracted position needs holding. If your process requires clamping at an arbitrary mid-stroke point rather than the stroke terminal, use the BSAI clamp-lock cylinder instead.
The lock is a static holding device that engages after the rod stops, not a dynamic brake for moving loads. Avoid using fast-exhaust valves, as back-pressure on the locker side can inadvertently release the lock; always use an independent-exhaust solenoid valve. For safety-critical lifting applications, install an independent mechanical safety measure as a backup. Replacement specifications require a 63mm 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 SAILF63X160S FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end in the front cover. It unlocks automatically via air supply or manually via a lever, but it cannot hold the rod at arbitrary mid-stroke positions.
Related AirTAC Lock & Standard Cylinders
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