Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X700
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X700 is a genuine double-acting ISO 15552 profile cylinder with a Ø80mm 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.
- BoreØ80 mm
- Stroke700 mm
- Port sizeG3/8
- Lock positionFront cover
- Rod threadM20×1.5
- 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 SAILF80X700
The AirTAC SAILF80X700 is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock in the front cover. This spring-applied, air-released mechanism engages a 25mm carbon steel rod precisely at the extended stroke end, securing loads up to 4523N at 0.9 MPa without requiring live air pressure. Unlocking happens automatically by supplying air to the release port or by using the manual override lever.
Because the lock occupies the front end, the variable air cushion there is shorter at 22.5mm compared to 36mm on the rear free end. The extruded aluminum barrel includes dual sensor grooves, and while this specific SKU lacks a magnet, adding one enables compatibility with CMSE reed and DMSE solid-state switches. Operating speed spans 30-800 mm/s.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X700 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X700 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø80 mm |
| Stroke | 700 mm |
| Acting type | Double acting, with lock |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 (36 mm free end / 22.5 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SAILF80X700 Is Used
Vertical Lift Safety
Holds an elevated platform securely at the extended stroke end during a power loss, preventing sudden collapses.
Pallet Stop Gate
Locks a diverter gate in the extended out position to halt heavy pallets without consuming continuous air.
Machine Guard Hold
Maintains a safety barrier open and locked at the full rod-out terminal until the release air is actively commanded.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X700 the Right Lock Cylinder?
Choose this 80mm bore when an application requires holding a load securely at the full extension point, delivering 3518N of thrust at 0.7 MPa. If your mechanism only needs to secure the retracted position, select the SAILB80X700 instead. Should the process require clamping at an arbitrary mid-stroke height rather than a stroke-end hold, the BSAI clamp-lock cylinder is the correct alternative. Remember that this SAIL lock is a static holding device, not a dynamic brake for a moving rod.
When integrating this unit, strictly avoid fast-exhaust valves; back-pressure on the locker side can unintentionally release the lock, so use an independent-exhaust solenoid valve. For safety-critical suspended loads, always add an independent mechanical safety measure. To replace this cylinder, match the 80mm bore, 700mm stroke, front lock position, 3/8 PT ports, and your required mounting style. Given the 700mm stroke, ensure external guides are used to prevent excessive side-loading on the rod.
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 SAILF80X700 FAQ
At 0.7 MPa it provides 3518N of push thrust and 2268N of pull thrust. At 0.9 MPa, the push force reaches 4523N.
The lock is spring-applied and air-released, engaging only when the rod reaches the extended stroke end. It is a static hold, not a mid-stroke clamp or dynamic brake. Unlock it automatically via the release air port or manually via the lever.
Related AirTAC Lock & Standard Cylinders
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