Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X225S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X225S is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 225mm 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.
- BoreØ160 mm
- Stroke225 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 SAILF160X225S
The AirTAC SAILF160X225-S is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock housed in the front cover. Because this is a SAILF configuration, the spring-applied, air-released lock engages when the piston reaches the extended stroke end, securely holding the rod-out position without requiring live pressure. Equipped with a magnetic piston, it supports AirTAC CMSE reed and DMSE solid-state sensors for precise end-position detection.
In the 160mm bore class, this actuator generates 10053N of pull force at 0.5MPa and 14074N of push force at 0.7MPa. The variable air cushion at the locker end measures 28mm, which is intentionally shorter than the 50mm cushion on the free end to accommodate the locking mechanism. A carbon steel rod provides durable, high side-load resistance for heavy industrial machinery.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X225S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X225S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 225 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 SAILF160X225S Is Used
Extended Stroke Vertical Lift
Holds a raised platform securely at the extended stroke end during a power loss, preventing sudden drops via the front-cover mechanical lock.
Heavy Clamp and Hold
Applies 14074N of push force at 0.7MPa to clamp large parts and maintains the extended hold without continuous air supply.
Gate and Guard Control
Secures heavy safety gates in the open, rod-out position until the air-release port is actively pressurized to unlock the mechanism.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X225S the Right Lock Cylinder?
Select this 160mm bore when substantial thrust is required to move and hold a load, stepping up from the 125mm bore which provides 5734N of pull force at 0.5MPa. Choose the SAILF front-locker variant specifically when the application demands the rod be mechanically secured in the extended position. If the process requires clamping at an arbitrary mid-stroke point, the BSAI clamp-lock cylinder is the correct choice instead, as the SAIL lock only engages at the stroke terminal.
Remember that the SAIL lock is a static holding device, not a dynamic brake for a moving rod. Never pair this cylinder with a fast-exhaust valve; always use an independent-exhaust solenoid valve, as back-pressure on the locker side can unintentionally release the lock. For any human-safety application where failure poses a risk of injury, an independent mechanical safety measure must supplement the pneumatic lock. This 225mm stroke model uses a 3/4 PT port and supports mountings including TC, LB, and FA. For strokes of 300mm or greater, an external guide rail is recommended to prevent rod bending under high side loads.
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 SAILF160X225S FAQ
At 0.5MPa, the 160mm bore provides 10053N of pull force and 14074N of push force. At 0.7MPa, the push force increases to 14074N. The maximum operating pressure is 1.0MPa.
The lock is spring-applied and air-released, engaging statically at the extended stroke end when the rod stops. It does not brake a moving rod or hold mid-stroke. Unlocking occurs automatically by supplying air to the release port or by using the manual release lever.
Related AirTAC Lock & Standard Cylinders
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