Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50S is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 50mm 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
- Stroke50 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 SAILF160X50S
The AirTAC SAILF160X50-S is a double-acting ISO 15552 profile cylinder equipped with a mechanical lock in the front cover. Because the lock is spring-applied and air-released, cutting the release air securely holds the rod at the extended stroke end without requiring live pressure. Operating at 0.5 MPa, this 160mm bore generates 10053N of pull force, making it well-suited for heavy vertical lifting tasks.
This unit includes a magnetic piston (-S) for position sensing with AirTAC CMSE reed or DMSE electronic sensors. The variable air cushion at the locker end is 28mm, intentionally shorter than the 50mm cushion on the rear end. The standard carbon steel rod and PT tapered port threads ensure robust fluid power connections for industrial environments.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 50 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 SAILF160X50S Is Used
Extended Load Holding
Maintains heavy lifted loads securely in the extended position during a power or air loss event.
Safety Gate Locking
Keeps heavy safety barriers and machine gates open at the end of the stroke until intentionally released.
Press Hold Sequence
Holds a press plunger at the extended stroke end while secondary manufacturing operations complete.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50S the Right Lock Cylinder?
Choose this 160mm bore if your application requires substantial holding force at the full extended position; if less force is needed, a 125mm bore provides 5734N of pull at 0.5 MPa. Select the SAILF front-locker configuration when the load must be secured in the extended rod-out position, and choose SAILB instead for retracted holding. If your process requires clamping at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct alternative.
Remember that this lock is a static holding device that engages after the cylinder stops, not a dynamic brake for a moving rod. Avoid using fast-exhaust valves, as back-pressure on the locker side can unintentionally release the lock; use an independent-exhaust solenoid valve instead. For human safety-critical suspended loads, always add an independent mechanical safety measure. Replacement parts must match the 160mm bore, 50mm stroke, front lock position, PT port threads, and -S magnet specification.
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 SAILF160X50S FAQ
At 0.5 MPa, this 160mm bore cylinder provides 10053N of pull force and 14074N of push force at 0.7 MPa. The maximum operating pressure is 1.0 MPa.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end. It provides a static hold after the rod stops, not a mid-stroke clamp. Unlocking is done automatically via air supply or by using the manual release lever.
Related AirTAC Lock & Standard Cylinders
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