Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150S 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 SAILF200X150S
The AirTAC SAILF200X150-S is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock inside the front cover. Because the lock is spring-applied and air-released, cutting the release air forces a lock pin into the rod, securely holding the load at the extended stroke end without relying on continuous live pressure. Supplying air to the release port unlocks it automatically, or you can use the manual release lever. In the 200mm bore class, it generates a substantial 15708N of push thrust and 15080N of pull thrust at 0.5 MPa.
This 150mm stroke variant includes a magnetic piston (-S) for position sensing with AirTAC CMSE reed and DMSE electronic solid-state switches. The extruded aluminum barrel accommodates variable air cushions at both ends, but the locker-end cushion is notably shorter at 28mm compared to the 50mm cushion on the free end. The standard carbon steel rod provides robust load transmission, and fluid must be filtered to 40 um.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150S |
|---|---|
| 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 SAILF200X150S Is Used
Vertical Lift Holding
Secures heavy elevated platforms in the extended position instantly upon air pressure loss, preventing sudden collapses.
Heavy Clamp and Hold
Maintains maximum clamping force on large fabrications at the stroke end without consuming continuous compressed air.
Safety Gate Lock
Keeps heavy industrial safety gates barred and open during power loss until the release air is restored.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X150S the Right Lock Cylinder?
Choose this 200mm bore when your application requires extreme force, up to 21991N push at 0.7 MPa; if you need less force, stepping down to the 160mm bore yields 10053N at 0.5 MPa. Select this SAILF configuration when the load must be physically secured in the extended rod-out position. If your machinery requires holding at an arbitrary mid-stroke point rather than the extended end, the BSAI clamp-lock cylinder is the correct choice instead. Remember that the SAIL lock is a static holding device that engages after the cylinder stops, not a dynamic brake for a moving rod.
For safe operation, never use a fast-exhaust valve with this lock cylinder; an independent-exhaust solenoid valve is mandatory because back-pressure on the locker side can inadvertently release the lock. If human safety depends on the load remaining extended, add an independent mechanical safety measure as well. To replace this unit, match the 200mm bore, 150mm stroke, front locker position, PT tapered port, and -S magnet. Although the stroke is under 300mm, always verify guide alignment to manage side loads on large bore cylinders.
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 SAILF200X150S FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At the maximum 1.0 MPa pressure, it delivers a maximum push force of 3204 kgf.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end. It holds the load statically without live pressure; 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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