Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200 is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm 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.
- BoreØ200 mm
- Stroke200 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 SAILF200X200
The AirTAC SAILF200X200 is a double-acting ISO 15552 profile cylinder featuring a mechanical lock built into the front cover. Because the lock is spring-applied and air-released, it automatically engages to hold the rod at the fully extended stroke end whenever the release air is cut, securing the load without relying on live pressure. You can unlock it by resupplying air to the release port or by using the manual release lever. With a massive 15708N push force at 0.5MPa, this 200mm bore unit handles heavy vertical lifting tasks.
The lock is a static holding device that engages only after the piston stops at the stroke terminal, meaning it will not brake a moving rod. To ensure proper function, the locker-end air cushion is 28mm, which is shorter than the 50mm cushion on the free end. For position sensing, adding a magnet (-S) allows the use of AirTAC CMSE reed or DMSE solid-state sensors along the dual-side barrel grooves.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 200 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 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 SAILF200X200 Is Used
Heavy Lift Safety
Holds massive lifted loads securely at the extended stroke end during a power loss event, preventing sudden drops.
Press Hold
Maintains maximum outward clamping pressure on a workpiece without consuming continuous compressed air.
Gate Security
Locks a heavy vertical gate in the open extended position, requiring an intentional air signal to release and close.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X200 the Right Lock Cylinder?
Choose this 200mm bore cylinder when an application requires 15708N of push force at 0.5MPa or up to 3204kgf at 1.0MPa. If you need less force, stepping down to a 160mm bore provides 10053N push at 0.5MPa. Select this SAILF model specifically because the load must be held securely at the extended rod-out position; if your application requires holding the load retracted, use the SAILB variant instead. Should you need to lock the rod at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct choice.
This SAILF200X200 features a 40mm carbon steel rod, PT tapered port threads, and a 200mm stroke. Remember that the lock holds statically at the stroke end and is not a dynamic brake. Valve selection is critical: never use a fast-exhaust valve with this cylinder, as back-pressure on the locker side can unintentionally release the lock. Always use an independent-exhaust solenoid valve. For any safety-critical lifting application where human safety depends on the load staying up, add an independent safety measure as well.
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 SAILF200X200 FAQ
At 0.5MPa, the push force is 15708N and the pull force is 15080N. At the maximum operating pressure of 1.0MPa, the push force reaches 3204kgf.
The lock is spring-applied and air-released, located in the front cover. It engages statically to hold the rod at the fully extended stroke end when air is cut. You can unlock it automatically by resupplying release air or by using the manual lever. It does not clamp at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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