Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X200
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X200 is a genuine double-acting ISO 15552 profile cylinder with a Ø80mm bore, 200mm 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
- Stroke200 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 SAILF80X200
The AirTAC SAILF80X200 is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock in the front cover. Because it 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 air pressure. Delivering a 0.5 MPa push force of 2513N and a pull force of 2268N, it provides robust load handling for pneumatic systems.
This model features a 25mm carbon steel rod and a 3/8 PT port. To prevent accidental unlocking, avoid fast-exhaust valves and use an independent-exhaust solenoid valve, as back-pressure on the locker side can release the pin. The variable air cushion at the lock end is 22.5mm, intentionally shorter than the 36mm cushion at the free end to accommodate the locking mechanism.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X200 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X200 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAILF80X200 Is Used
Vertical Lift Safety
Holds an elevated load securely at the extended stroke end during a sudden air pressure loss, preventing sudden drops in lifting mechanisms.
Clamp and Hold
Maintains outward clamping pressure on a workpiece without consuming continuous compressed air, locking immediately upon reaching the extended terminal.
Gate and Guard Holding
Keeps safety gates or heavy mechanical guards fully open and locked in the extended position until the release air is actively supplied.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X200 the Right Lock Cylinder?
Select this 80mm bore cylinder when your application requires holding a load at the fully extended rod-out position on power loss. If your system requires less force, the 63mm bore offers 1559N of push force at 0.5 MPa; if you need more clamping power, the 100mm bore provides 3927N. Choose a SAILB variant instead if the load must be secured at the retracted stroke end.
For applications needing mid-stroke clamping rather than an end-of-stroke hold, select the BSAI clamp-lock cylinder instead. Remember that the SAIL lock is a static holding device that engages after the cylinder stops, not a dynamic brake. Always add an independent safety measure if human safety depends on the load remaining elevated. Replacement parts must match the 80mm bore, 200mm stroke, front locker position, 3/8 PT port, and standard mounting options.
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 SAILF80X200 FAQ
At 0.5 MPa, the SAILF80X200 generates 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N. The maximum operating pressure is 1.0 MPa.
The lock is spring-applied and air-released, located in the front cover. It engages statically only when the piston reaches the extended stroke end. To unlock it, you supply air to the release port for automatic operation or use the manual release lever.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X200
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.