Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X75S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X75S is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm bore, 75mm 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.
- BoreØ200 mm
- Stroke75 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 SAILF200X75S
The AirTAC SAILF200X75-S is a double-acting ISO 15552 profile cylinder equipped with a mechanical lock in the front cover, engineered to secure heavy loads at the extended stroke end. It delivers immense thrust, pushing with 15708 N and pulling with 15080 N at 0.5 MPa. A carbon steel rod handles high side-load stresses, while the integrated -S magnet enables precise position detection using CMSE reed or DMSE electronic solid-state sensors.
This unit uses a spring-applied, air-released locking mechanism: removing the release air drives a pin into the rod, holding the load without live pressure. Be aware that the variable air cushion at the locker end is 28 mm, noticeably shorter than the 50 mm cushion on the free end, because the lock hardware occupies space inside the cover. The lock engages statically after the piston stops, rather than acting as a dynamic brake for a moving rod.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X75S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X75S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 75 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 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 SAILF200X75S Is Used
Heavy Lift Safety Hold
Secures elevated platens or massive lifting platforms at the extended stroke end, preventing a catastrophic fall if the main air supply drops unexpectedly.
Press Clamp Retention
Maintains constant clamping force on large fabricated components during machining or welding, holding the position statically without consuming continuous pneumatic energy.
Gate and Guard Locking
Keeps heavy industrial safety gates and machine guards firmly open at the full extended position, requiring an intentional air release signal to unlock and close.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X75S the Right Lock Cylinder?
Select this 200 mm bore model when an application demands extreme force that a 160 mm bore (providing 10053 N push at 0.5 MPa) cannot supply, provided the physical envelope allows it. Choose the SAILF configuration specifically when the load must be held safely at the rod-out position; if you need to hold the retracted position, select a SAILB model instead. For applications requiring the load to be clamped at an arbitrary mid-stroke point, the BSAI clamp-lock cylinder is the correct choice, as the SAIL lock functions only at the stroke terminal.
Because the lock is spring-applied, it fails safe upon air loss, but back-pressure on the locker side can inadvertently release it. Do not use a fast-exhaust valve; instead, use an independent-exhaust solenoid valve to ensure reliable locking. If human safety depends on the load remaining extended, add an independent safety measure. This cylinder uses PT tapered ports, accepts the full ISO 15552 mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, FTC, TCM1, TCM2), and operates at 30-500 mm/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 SAILF200X75S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At its maximum 1.0 MPa pressure, the push force reaches 3204 kgf.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end in the front cover. It holds statically after the rod stops and is not a mid-stroke clamp. You can unlock it automatically by supplying air to the release port or by using the manual release lever.
Related AirTAC Lock & Standard Cylinders
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