Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X200S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X200S is a genuine double-acting ISO 15552 profile cylinder with a Ø63mm bore, 200mm 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
- Stroke200 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 SAILF63X200S
The AirTAC SAILF63X200-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 lock pin into the rod, securely holding the load at the extended stroke end without requiring live pressure. In the 63mm bore class, it generates a 1559N push force and a 1402N pull force at 0.5 MPa, making it well-suited for medium-capacity vertical lifting and holding tasks.
This model includes a standard piston magnet for position sensing with AirTAC CMSE reed and DMSE electronic switches. A notable design detail is the variable air cushion: the locker end features a shorter 21mm cushion stroke compared to the 30mm cushion on the free end, ensuring compact deceleration without interfering with the locking mechanism. You can unlock the rod automatically by supplying air to the release port or manually via the release lever.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X200S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X200S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø63 mm |
| Stroke | 200 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 SAILF63X200S Is Used
Vertical Lift Holding
Maintains a raised platform securely at the extended stroke end during air pressure loss or system shutdown.
Power Failure Safety
Prevents gravity-driven drops by engaging the spring-applied lock the moment control air is vented.
Extended Position Clamping
Secures a workpiece or tooling at the rod-out terminal for stable processing without continuous air consumption.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X200S the Right Lock Cylinder?
Select this 63mm bore cylinder when your application requires holding a load at the rod-out extended position, such as lifting a gate or supporting a raised platen. If your force requirements are lower, stepping down to a 50mm bore provides 982N push at 0.5 MPa; if you need more holding power, an 80mm bore yields 2513N. Choose the SAILF variant specifically when the extended stroke end must be secured, and pick SAILB if the retracted rod-in position needs holding instead.
For applications where the load must be clamped at an arbitrary mid-stroke point rather than at the stroke terminal, the BSAI clamp-lock cylinder is the correct alternative. Remember that the SAIL lock is a static holding device that engages after the cylinder stops, not a dynamic brake for a moving rod. Avoid using fast-exhaust valves with this cylinder, as back-pressure on the locker side can inadvertently release the lock; always use an independent-exhaust solenoid valve. If human safety depends on the load remaining elevated, add an independent mechanical safety measure. Replacement parts must match the 63mm bore, 200mm stroke, front lock position, PT 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 SAILF63X200S FAQ
At 0.5 MPa, this 63mm bore cylinder provides a push force of 1559N and a pull force of 1402N. At 0.7 MPa, the push force is 2182N.
The lock is spring-applied and air-released, holding the rod securely at the extended stroke end. It engages automatically when pressure is lost and unlocks via air supply to the release port or manual lever; it does not clamp at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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