Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150 is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm bore, 150mm 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
- Stroke150 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 SAILF200X150
The AirTAC SAILF200X150 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock built into the front cover. This lock engages automatically when the piston reaches the extended stroke end, securely holding a 3204 kgf maximum load without requiring live air pressure. A carbon steel rod and PT tapered port thread come standard on this bore size.
Because the lock occupies the front end, the variable air cushion on that side is shorter, measuring 28 mm compared to the 50 mm cushion on the free back end. To unlock the rod, you can supply release air to the dedicated port for automatic retraction or use the manual release lever. Note that this is a static holding device that engages after the cylinder stops, not a dynamic brake for a moving rod.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 150 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 SAILF200X150 Is Used
Extended Load Holding
Maintains elevated heavy platforms securely in the rod-out position during power loss, utilizing the front cover lock to prevent gravity-driven drops.
Press Clamp Securement
Holds heavy workpiece clamps open at the full extended stroke end without consuming continuous air supply, ensuring safe operator access during loading.
Heavy Gate Safety
Locks large industrial gates in the open position automatically once the stroke reaches the front terminal, providing a fail-safe hold against mechanical shocks.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150 the Right Lock Cylinder?
Choose this 200 mm bore when your application demands massive thrust, pushing 15708 N at 0.5 MPa or 21991 N at 0.7 MPa. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which may optimize space and air consumption. Select this SAILF variant specifically when the load must be secured in the extended rod-out position; choose SAILB if the hold must occur at the retracted stroke end.
If your machinery requires clamping at an arbitrary mid-stroke point rather than the extended terminal, the BSAI clamp-lock cylinder is the correct alternative. For the SAILF200X150, ensure you use an independent-exhaust solenoid valve rather than a fast-exhaust valve, as back-pressure on the front locker side can unintentionally release the lock. For any safety-critical lifting application, always add an independent mechanical safety measure. When ordering replacements, verify the 150 mm stroke, front lock position, 3/4 PT port, and required mounting style.
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 SAILF200X150 FAQ
The 200 mm bore generates a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. At 0.7 MPa it provides 21991 N of push force, reaching a maximum of 3204 kgf at 1.0 MPa.
The lock is spring-applied and air-released, engaging only when the rod reaches the extended stroke end in the front cover. It provides a static hold, not a mid-stroke clamp, and is released automatically via air pressure or manually via a lever.
Related AirTAC Lock & Standard Cylinders
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