Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X1000S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X1000S is a genuine double-acting ISO 15552 profile cylinder with a Ø63mm bore, 1000mm 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
- Stroke1000 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 SAILF63X1000S
The AirTAC SAILF63X1000-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released mechanical lock housed in the front cover. This mechanism engages automatically when the piston reaches the extended stroke end, securely holding the load without relying on continuous live air pressure. With a 63mm bore, it delivers a push force of 1559N and a pull force of 1402N at 0.5MPa, making it well-suited for heavy vertical lifting tasks.
Because the lock occupies the front end-cap, the variable air cushion on that locker end is shorter, measuring 21mm compared to the 30mm cushion found on the standard back end. The included -S magnet enables precise position detection using AirTAC CMSE reed switches or DMSE solid-state sensors. Remember that this static lock functions only after the rod has fully stopped at the extended terminal; it is not a dynamic mid-stroke clamp.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X1000S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X1000S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø63 mm |
| Stroke | 1000 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 SAILF63X1000S Is Used
Vertical Lift Holding
Secures elevated loads at the fully extended stroke end, preventing sudden drops during power loss or pressure depletion.
Conveyor Pause
Locks an extended actuator in place to halt product flow securely without consuming continuous pneumatic energy.
Gate Safety Hold
Maintains heavy gates or doors open at the extended terminal, engaging a static hold that requires air release to unlock.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X1000S the Right Lock Cylinder?
If your application requires higher thrust, stepping up to the 80mm bore provides a push force of 2513N at 0.5MPa, while dropping to the 50mm bore reduces the force to 982N. Choose this SAILF configuration when you need the load safely suspended at the rod-out position; select a SAILB variant instead if your safety hold must occur at the retracted stroke end. For applications demanding clamping at an arbitrary mid-stroke position rather than the stroke terminal, the BSAI clamp-lock cylinder is the correct alternative.
When integrating this lock cylinder, never use a fast-exhaust valve, as back-pressure on the locker side can inadvertently release the lock; always utilize an independent-exhaust solenoid valve. Given the 1000mm stroke, adding an external guide is strongly recommended to prevent excessive side-loading on the rod. To replace this unit, verify the 63mm bore, 1000mm stroke, front lock position, PT tapered port threads, carbon steel rod, and -S magnet compatibility.
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 SAILF63X1000S FAQ
At an operating pressure of 0.5MPa, the 63mm bore generates a push force of 1559N and a pull force of 1402N. At 0.7MPa, the push force increases to 2182N.
The lock is spring-applied and air-released, engaging statically 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 does not clamp at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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