Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X700
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X700 is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm 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.
- BoreØ200 mm
- Stroke700 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 SAILF200X700
The AirTAC SAILF200X700 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock integrated into the front cover. This lock engages automatically when the piston reaches the extended stroke end, securely holding the load without requiring continuous live air pressure. Delivering a robust 15708N push force at 0.5MPa, it is built for heavy-duty vertical lifting and safety holding. The standard carbon steel rod provides high tensile strength for demanding industrial environments.
Because the lock is housed in the front cover, the cushioning at that locker end is shorter at 28mm compared to the 50mm cushion on the rear free end. The cylinder operates at speeds between 30-500mm/s, and positioning can be monitored using AirTAC CMSE reed or DMSE solid-state sensors if a magnet is specified separately. For power-loss safety, the rod remains securely clamped at the extended terminal position until released.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X700 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X700 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 700 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 SAILF200X700 Is Used
Heavy Vertical Lift Hold
Secures massive elevated loads at the extended stroke end during power loss, preventing sudden drops in heavy machinery.
Safety Gate Barrier
Locks a protective gate or barrier in the open, extended position to ensure it remains firmly in place until an operator releases the air pressure.
Press Clamp Retention
Maintains clamping force on a workpiece at the rod-out terminal position without consuming compressed air during the holding phase.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X700 the Right Lock Cylinder?
Choose this 200mm bore cylinder when an application requires holding a massive extended load, such as 15708N at 0.5MPa, without maintaining air pressure. If your force requirements are lower, stepping down to a 160mm bore yields 10053N of push force at 0.5MPa, while keeping the same 700mm stroke. Select the SAILF configuration specifically when the load must be secured at the rod-out position; conversely, choose SAILB if the retracted rod-in position must be held. If your process requires clamping at an arbitrary mid-stroke point rather than a stroke terminal, the BSAI clamp-lock cylinder is the correct alternative.
When matching replacements, verify the 700mm stroke, front locker position, 3/4 PT port threads, and your required mounting style from the full ISO 15552 set. For a 700mm stroke, incorporating external guide rails is highly recommended to manage side loads and prevent rod binding. Remember that the SAIL lock is a static holding device that engages after the cylinder stops; it will not brake a moving rod. Furthermore, avoid using fast-exhaust valves, as back-pressure on the locker side can inadvertently release the lock. Always add an independent mechanical safety measure if human safety depends on the suspended load.
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 SAILF200X700 FAQ
At 0.5MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At 0.7MPa, the push force increases to 21991N.
The spring-applied, air-released lock engages automatically when the piston reaches the extended stroke end in the front cover, holding the load statically without live pressure. To unlock, you supply air to the release port or use the manual lever. It does not lock at mid-stroke; for arbitrary position clamping, use a BSAI cylinder.
Related AirTAC Lock & Standard Cylinders
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