Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X700S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X700S is a genuine double-acting ISO 15552 profile cylinder with a Ø63mm bore, 700mm 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
- Stroke700 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 SAILF63X700S
The AirTAC SAILF63X700-S is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock in the front cover. It delivers 1559N of push force and 1402N of pull force at 0.5MPa. The lock is spring-applied and air-released, meaning it engages automatically when the piston reaches the extended stroke end to hold the load securely without requiring live air pressure. To release the rod, supply air to the unlock port or use the manual override lever.
This model includes a magnetic piston (-S) for position feedback using AirTAC CMSE reed or DMSE solid-state sensors. The extruded aluminum barrel provides a rigid structure, and the variable air cushion at the locker end is 21mm, intentionally shorter than the 30mm free-end cushion to accommodate the locking mechanism. PT tapered ports and a carbon steel rod come standard.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X700S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X700S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø63 mm |
| Stroke | 700 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 SAILF63X700S Is Used
Extended Lift Holding
Maintains vertical lift platforms securely in the raised position during power loss without relying on continuous air pressure.
Flow Control Diverter
Keeps a diverter arm locked in the outward extended stroke end to route packages reliably until an intentional release signal is sent.
Safety Gate Barrier
Holds a protective barrier open at the extended stroke end, ensuring it remains securely deployed even if the pneumatic supply drops.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X700S the Right Lock Cylinder?
Choose this 63mm bore when a 50mm bore (982N push at 0.5MPa) lacks the force to lift your load, but an 80mm bore (2513N push) would be excessive. Select the SAILF variant specifically when the load must be held safely in the extended rod-out position; choose SAILB if you need to hold the retracted position. If your application requires clamping at an arbitrary mid-stroke point rather than a stroke-end hold, use the BSAI clamp-lock cylinder instead.
Because the stroke is 700mm, adding an external guide rail is highly recommended to prevent excessive side loads from damaging the rod seals. The lock provides a static hold after the cylinder stops, not a dynamic brake. Avoid using fast-exhaust valves, as back-pressure on the locker side can unintentionally release the lock; an independent-exhaust solenoid valve is required. For loads where human safety depends on preventing a drop, add an independent mechanical safety measure.
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 SAILF63X700S FAQ
At 0.5MPa, the push force is 1559N and the pull force is 1402N. If you operate at 0.7MPa, the push force increases to 2182N.
The spring-applied lock engages only when the piston reaches the extended stroke end in the front cover. It provides a static hold without live air. To unlock, supply air to the release port or use the manual lever. It does not clamp mid-stroke.
Related AirTAC Lock & Standard Cylinders
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