Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500S
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500S is a genuine double-acting ISO 15552 profile cylinder with a Ø200mm bore, 500mm 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
- Stroke500 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 SAILF200X500S
The AirTAC SAILF200X500-S is a double-acting ISO 15552 profile cylinder equipped with a mechanical lock in the front cover, designed to secure the rod at the fully extended stroke end. Built with a carbon steel rod and a magnetic piston for CMSE or DMSE sensors, it delivers massive thrust, pushing with 15708 N and pulling with 15080 N at 0.5 MPa. The spring-applied, air-released lock engages automatically when the piston reaches the front terminal, maintaining the load securely without requiring continuous live air pressure.
This model features a 3/4-inch PT port and operates at speeds between 30 and 500 mm/s. A critical design detail is that the variable air cushion at the locker end is shorter, measuring 28 mm compared to the 50 mm cushion on the free end. Remember that this lock is a static holding device for use after the cylinder stops, not a dynamic brake for a moving rod, and the cushion only decelerates the load without holding it.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500S Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø200 mm |
| Stroke | 500 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 SAILF200X500S Is Used
Vertical Lift Holding
Secures heavy elevated platforms in the extended position automatically during air pressure loss, preventing sudden drops.
Heavy Clamp Station
Maintains maximum clamping force at the stroke end without consuming continuous air, saving energy during long hold cycles.
Safety Gate Lock
Keeps large industrial safety gates open and locked at full extension until the release air is actively supplied.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF200X500S the Right Lock Cylinder?
Choose this 200 mm bore cylinder when an application demands high force and a fail-safe hold at the extended stroke end on power loss. If your system only requires 10053 N of push force at 0.5 MPa, stepping down to the 160 mm bore saves space and air consumption. Select the SAILF configuration to lock the rod in the extended position, whereas a SAILB variant would secure the retracted position. If your load must be clamped at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct choice instead.
For this 500 mm stroke, adding an external guide is recommended to prevent excessive side loads on the rod. To maintain lock integrity, never use a fast-exhaust valve; instead, install an independent-exhaust solenoid valve, as back-pressure on the locker side can unintentionally release the lock. Always confirm the exact lock holding force from the datasheet, and if human safety relies on the load staying up, implement an additional independent safety measure. Replacement requires matching the 200 mm bore, 500 mm stroke, front locker position, 3/4-inch PT port, and the -S magnet.
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 SAILF200X500S FAQ
At 0.5 MPa, the push force is 15708 N and the pull force is 15080 N. At 0.7 MPa, the push force increases to 21991 N.
The lock is spring-applied and air-released, located in the front cover to hold the rod only at the extended stroke end. It engages statically after the cylinder stops and can be unlocked automatically via air or manually with a lever.
Related AirTAC Lock & Standard Cylinders
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