Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800S 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 SAILF200X800S
The AirTAC SAILF200X800-S is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock in the front cover. Because this is a SAILF variant, the spring-applied, air-released lock engages only when the piston reaches the extended stroke end, securely holding the rod out without relying on live pressure. Delivering 15708N of push force at 0.5 MPa and equipped with a carbon steel rod, this massive 200mm bore unit is built for heavy-duty load holding. An optional magnet (-S) enables position tracking via AirTAC CMSE reed and DMSE electronic sensors.
This model features a PT tapered port and uses variable air cushions at both ends, though the cushion at the locker end is notably shorter (28mm) than the free end (50mm) to accommodate the locking hardware. The lock itself is a static holding device, not a dynamic brake, meaning it engages after the cylinder stops. For safety-critical suspended loads, an independent mechanical safety measure is strongly recommended alongside the lock.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800S |
|---|---|
| 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 SAILF200X800S Is Used
Heavy Lift Safety Hold
Secures massive lifted platforms in the extended position during power loss, utilizing the front mechanical lock to prevent sudden drops.
Press Hold
Maintains maximum pressing force at the extended stroke end without consuming continuous compressed air, saving energy during long dwell cycles.
Gate Barrier Lock
Keeps heavy industrial gates or doors firmly open at the stroke terminal, engaging automatically once the piston reaches the extended end.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X800S the Right Lock Cylinder?
Choose this 200mm bore cylinder when an application demands immense thrust and guaranteed load holding at the fully extended position. If the full 15708N push force at 0.5 MPa is excessive, stepping down to a 160mm bore yields 10053N, but for the highest capacity requirements, this 200mm model is optimal. Select the SAILF configuration when the rod must be locked in the extended position; if your application requires holding the load retracted, the SAILB variant is the correct choice. Furthermore, if your process requires locking at an arbitrary mid-stroke position rather than a stroke end, the BSAI clamp-lock cylinder should be used instead.
When integrating this lock cylinder, valve selection is a critical red-line: never use a fast-exhaust valve, as back-pressure on the locker side can unintentionally release the lock. Always use an independent-exhaust solenoid valve to ensure safe unlocking. Additionally, with an 800mm stroke, the extended rod is highly susceptible to side-load deflection; always use a dedicated external guide or linear rail to prevent cylinder damage. Replacement requires matching the 200mm bore, 800mm stroke, front locker 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 SAILF200X800S FAQ
At 0.5 MPa, this 200mm bore cylinder provides a push force of 15708N and a pull force of 15080N. At the maximum operating pressure of 1.0 MPa, it delivers a push force of 3204 kgf.
The lock is spring-applied and air-released, engaging statically only when the piston reaches the extended stroke end. To unlock, you supply release air or use the manual override. It does not clamp at mid-stroke and is not a dynamic brake.
Related AirTAC Lock & Standard Cylinders
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