Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X800S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X800S is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 800mm 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
- Stroke800 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 SAILF160X800S
The AirTAC SAILF160X800-S is a double-acting ISO 15552 profile cylinder equipped with a mechanical lock in the front cover. Because this is a SAILF variant, 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. In this 160mm bore class, it generates a substantial 14074N of push force at 0.7 MPa, utilizing a 40mm carbon steel rod for high structural rigidity.
Unlocking is achieved automatically by supplying air to the release port, or manually via the lever. The integrated magnet (-S) supports position sensing with AirTAC CMSE reed and DMSE electronic solid-state switches. A key design detail is that the variable air cushion at the locker end is shorter (28mm) than the free end (50mm), ensuring deceleration does not interfere with the lock engagement mechanism.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X800S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X800S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 800 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 SAILF160X800S Is Used
Heavy Lift Holding
Maintains elevated platforms securely at the extended stroke end during a power loss, preventing sudden drops in heavy machinery.
Extended Clamp Lock
Provides a rigid, air-free hold on parts clamped at the far end of the 800mm stroke, ensuring stability during machining.
Gate Safety Stop
Locks large industrial gates or safety doors in the open position without consuming compressed air, releasing only on command.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X800S the Right Lock Cylinder?
Select this 160mm bore model when an application demands heavy vertical lifting up to an 800mm stroke and failsafe holding at the fully extended position. If the requirement is holding the load retracted, the SAILB160X800 is the correct alternative. Stepping down to a 125mm bore reduces the 0.5MPa push force to 6136N, whereas this 160mm bore provides 10053N at the same pressure, making it necessary for heavier payloads.
The lock is a static holding device that engages only after the rod stops at the stroke terminal; it will not brake a moving rod or clamp at a mid-stroke point (for arbitrary position clamping, use a BSAI cylinder). Crucially, avoid fast-exhaust valves, as back-pressure on the locker side can unintentionally release the lock—use an independent-exhaust solenoid valve instead. For an 800mm stroke, external guide rails are highly recommended to manage side loads and protect the 40mm carbon steel rod. If human safety depends on the suspended load, always add an independent mechanical safety measure. Replacement parts must match the 3/4 PT port, front lock position, and magnet configuration.
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 SAILF160X800S FAQ
At 0.5 MPa, the push force is 10053N and the pull force is 9425N. At 0.7 MPa, the push force increases to 14074N.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end. It holds statically without live pressure and unlocks via air supply or a manual lever; it does not clamp mid-stroke.
Related AirTAC Lock & Standard Cylinders
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