Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X100S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X100S is a genuine double-acting ISO 15552 profile cylinder with a Ø80mm bore, 100mm 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.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Lock positionFront cover
- Rod threadM20×1.5
- 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 SAILF80X100S
The AirTAC SAILF80X100-S is a double-acting ISO 15552 profile cylinder equipped with a built-in mechanical lock in the front cover. Because the lock is spring-applied and air-released, cutting the release air drives a lock pin into the rod to securely hold the load at the extended stroke end without requiring live pressure. This 80mm bore generates 2513 Newtons of push force at 0.5 MPa and includes a magnetic piston for position feedback.
This model features a carbon steel rod and PT tapered port threads. The variable air cushion at the locker end is 22.5mm, intentionally shorter than the 36mm cushion on the free end to accommodate the locking hardware. You can unlock the rod automatically by supplying air to the release port or by using the manual release lever during maintenance.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X100S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X100S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø80 mm |
| Stroke | 100 mm |
| Acting type | Double acting, with lock |
| Port size | G3/8 |
| 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 / 22.5 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SAILF80X100S Is Used
Vertical Lift Hold
Maintains an elevated load at the extended stroke end during a power loss, preventing sudden drops.
Safety Gate Lock
Secures a barrier in the open or closed position without consuming continuous air pressure.
Clamp and Hold
Holds a workpiece firmly at the rod-out terminal while machining operations are performed.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X100S the Right Lock Cylinder?
Choose this 80mm bore when an application requires 2513N of push force at 0.5 MPa or up to 4523N at 0.9 MPa; step down to a 63mm bore if 1559N is sufficient, or up to a 100mm bore for 3927N. Select this SAILF variant when the load must be held at the extended rod-out position, whereas SAILB holds the retracted position. If your application requires clamping at an arbitrary mid-stroke point rather than a stroke-end hold, use the BSAI clamp-lock cylinder instead.
Remember that this is a static holding lock that engages after the piston stops, not a dynamic brake for a moving rod. Valve selection is critical: never use a fast-exhaust valve with this cylinder, and always use an independent-exhaust solenoid valve, as back-pressure on the locker side can unintentionally release the lock. If human safety depends on the load staying extended, add an independent safety measure. This unit uses PT ports, a 25mm rod with an M20x1.5 thread, and operates at 30-800mm/s.
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 SAILF80X100S FAQ
At an operating pressure of 0.5 MPa, this 80mm bore cylinder provides 2513 Newtons of push force and 2268 Newtons of pull force. At 0.9 MPa, the push force increases to 4523 Newtons.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end in the front cover. It provides a static hold after the cylinder stops, not a mid-stroke clamp. You can unlock it automatically by supplying release air or manually via the release lever.
Related AirTAC Lock & Standard Cylinders
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