Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800 is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm bore, 800mm 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
- Stroke800 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 SAILF200X800
The AirTAC SAILF200X800 is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released mechanical lock housed in the front cover. This robust 200mm bore generates 15708N of push force at 0.5MPa, making it ideal for heavy-load handling. Because the lock sits in the front head, it secures the rod specifically at the extended stroke end. A release air port automatically disengages the mechanism, though a manual override lever is also provided for maintenance flexibility.
This unit features a carbon steel rod and PT tapered port threads. A critical design detail is the variable air cushion: the locker end utilizes a shorter 28mm cushion compared to the 50mm cushion on the free end. The lock itself provides a static hold after the piston stops; it is not a dynamic brake for moving rods. For position feedback, adding a magnet allows the use of AirTAC CMSE reed or DMSE electronic sensors.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAILF200X800 Is Used
Heavy Press Holding
Secures a massive press head at the extended bottom position. The spring-applied lock maintains 15080N of pull force without continuous air supply, preventing drift during material loading.
Overhead Lift Safety
Supports elevated platforms or heavy gates at full extension. If air pressure drops, the front lock engages instantly at the stroke end to hold the load safely in place.
Large Fixture Clamping
Locks large industrial fixtures in the extended position during machining. The 28mm locker-end cushion decelerates the heavy rod, while the static lock eliminates bounce.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800 the Right Lock Cylinder?
Select this 200mm bore when an application demands substantial thrust, such as 15708N push or 15080N pull at 0.5MPa. If your load requirements are lower, stepping down to a 160mm bore yields 10053N push force, significantly reducing air consumption and physical footprint. Choose the SAILF configuration when the load must be held securely at the extended rod-out position; if you need to hold the retracted position, select the SAILB variant instead. Because this model features an 800mm stroke, mounting alignment is critical—always use external guide rails to prevent excessive side-loading on the rod.
Remember that the SAIL lock engages only at the stroke terminal, not at arbitrary mid-stroke points; for mid-stroke clamping, the BSAI clamp-lock cylinder is required. Pneumatic routing is vital: never use a fast-exhaust valve with this cylinder, as back-pressure on the locker side can inadvertently release the lock. Always utilize an independent-exhaust solenoid valve. If human safety depends on the load remaining elevated, install an independent mechanical safety device as well. Replacement parts must match the 200mm bore, 800mm stroke, front lock position, 3/4 port, and mounting type.
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 SAILF200X800 FAQ
At 0.5MPa operating pressure, the 200mm bore provides 15708N of push force and 15080N of pull force. At 0.7MPa, the push force increases to 21991N.
The lock is spring-applied and air-released, engaging only when the rod reaches the extended stroke end in the front cover. It provides a static hold, not a dynamic brake. Supplying air to the release port unlocks it automatically, or you can use the manual release lever.
Related AirTAC Lock & Standard Cylinders
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