Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X25
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X25 is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 25mm 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
- Stroke25 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 SAILF160X25
The AirTAC SAILF160X25 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock housed in the front cover. Because the lock engages when the piston reaches its extended stroke end, it secures the rod in the outward position and holds the load without requiring continuous live air pressure. With a robust 160mm bore, it generates 14074N of push force at 0.7MPa, making it ideal for heavy-duty holding tasks.
The lock itself is a static holding device, not a dynamic brake that stops a moving rod. To ensure the mechanism functions safely, avoid using fast-exhaust valves; instead, select an independent-exhaust solenoid valve, as back-pressure on the locker side can unintentionally release the lock. Additionally, the variable air cushion at the front lock end is 28mm, intentionally shorter than the 50mm cushion on the free end to accommodate the locking hardware.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X25 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X25 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 25 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 SAILF160X25 Is Used
Extended Lift Holding
Secures elevated heavy loads in the fully extended position during a power loss, preventing sudden drops.
Clamp and Hold
Maintains outward clamping pressure on heavy fabricated components without consuming continuous air.
Gate Safety Lock
Keeps heavy industrial safety gates firmly locked open at the end of the stroke until intentionally released.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X25 the Right Lock Cylinder?
Choose this 160mm bore cylinder when an application demands substantial end-of-stroke holding power in the extended position. If your system requires less force, stepping down to a 125mm bore yields 8590N of push at 0.5MPa. For loads that must be secured at an arbitrary mid-stroke point rather than the extended end, select the BSAI clamp-lock cylinder instead. Remember that the SAIL lock is a static hold that engages after the rod stops; if human safety depends on the load remaining elevated, implement an independent safety measure.
When specifying a replacement, verify the 160mm bore, 25mm stroke, front locker position, and 3/4 PT port threads. This model uses a carbon steel rod and lacks a magnet, so position sensing is not possible without adding an -S option. It supports the full ISO 15552 mounting interface set, including Basic, FA, FB, CA, CB, CR, LB, TC, FTC, TCM1, and TCM2.
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 SAILF160X25 FAQ
At 0.7 MPa operating pressure, this 160mm bore cylinder generates 14074N of push force and 9425N of pull force. The maximum operating pressure is 1.0 MPa.
The lock is spring-applied and air-released, engaging statically at the extended stroke end to hold the rod without live pressure. It unlocks automatically by supplying air to the release port or manually via the lever. It does not clamp at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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