Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175S is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 175mm 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.
- BoreØ100 mm
- Stroke175 mm
- Port sizeG1/2
- Lock positionFront cover
- Rod threadM20×1.5
- UnlockAir + manual
About the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175S
The AirTAC SAILF100X175-S is a double-acting ISO 15552 profile cylinder equipped with a mechanical lock in the front cover, meaning it secures the rod at the fully extended stroke end. It generates 5497 N of push force and 3681 N of pull force at 0.7 MPa. The lock itself is spring-applied and air-released, ensuring the load remains held securely if air pressure drops. This unit includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors.
Because the lock occupies the front cover, the variable air cushion on that locker end is shorter at 24 mm compared to the 36 mm cushion on the free end. The standard carbon steel rod provides durable performance, and the cylinder operates at speeds between 30 and 800 mm/s. You can unlock the mechanism automatically via the release port or manually using the override lever.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 175 mm |
| Acting type | Double acting, with lock |
| Port size | G1/2 |
| 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 / 24 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SAILF100X175S Is Used
Extended Lift Holding
Secures vertical lifts in the fully extended position during a power loss, preventing gravity-driven drops without requiring continuous air pressure.
Pallet Stop Arm
Holds a conveyor stop arm firmly in the out position to halt pallets, engaging the lock at the stroke end to maintain the barrier.
Safety Gate Lock
Keeps a heavy machine safety gate open at full extension, using the mechanical lock to ensure the gate cannot close accidentally.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175S the Right Lock Cylinder?
Choose this 100 mm bore when an application requires substantial holding power at the extended position; stepping down to an 80 mm bore drops the 0.5 MPa push force to 2513 N. If the load must be held in a retracted state instead, select the SAILB variant. For applications needing the rod clamped at an arbitrary mid-stroke point rather than a stroke end, the BSAI clamp-lock cylinder is the correct choice.
The front lock provides a static hold that engages after the cylinder stops, functioning as a power-loss safety device rather than a dynamic brake for a moving rod. Avoid using fast-exhaust valves, as back-pressure on the locker side can unintentionally release the lock; utilize an independent-exhaust solenoid valve instead. If human safety relies on the load staying elevated, always add an independent secondary safety measure. Replacement specifications require a 100 mm bore, 175 mm stroke, front locker position, PT port threads, and the -S magnet option.
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 SAILF100X175S FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. At 0.5 MPa, the push force is 3927 N.
The spring-applied, air-released lock engages when the piston reaches the fully extended stroke end in the front cover. It provides a static hold without live pressure, and can be released automatically via air supply or manually via a lever.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X175S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.