Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X600
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X600 is a genuine double-acting ISO 15552 profile cylinder with a Ø63mm bore, 600mm 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.
- BoreØ63 mm
- Stroke600 mm
- Port sizeG3/8
- Lock positionFront cover
- Rod threadM16×1.5
- 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 SAILF63X600
The AirTAC SAILF63X600 is a double-acting ISO 15552 profile cylinder equipped with a 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, holding the rod out without requiring live pressure. At 0.7 MPa, this 63 mm bore generates 2182 N of push force, making it well-suited for lifting and holding substantial vertical loads. The lock releases automatically via air or manually via a lever.
A key physical trait is the variable air cushion design: the locker end features a shorter 21 mm cushion compared to the 30 mm cushion on the free end, ensuring compact deceleration on the locking side. This cylinder uses a 3/8 PT port and a 16 mm carbon steel rod. For position sensing, adding a magnet allows the use of AirTAC CMSE (reed) or DMSE (solid-state) sensors in the dual-side barrel grooves. The lock is a static holding device, not a dynamic brake, and engages only after the rod stops.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X600 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X600 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø63 mm |
| Stroke | 600 mm |
| Acting type | Double acting, with lock |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 (30 mm free end / 21 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SAILF63X600 Is Used
Extended Lift Holding
Secures elevated loads at the full stroke end, preventing drops when air pressure is removed during vertical lifting operations.
Power-Out Safety Gate
Keeps heavy safety barriers extended and locked during an air loss event, ensuring hazardous areas remain physically guarded.
Pallet Stop Position
Holds a conveyor flow stop at its extended endpoint to halt pallets securely without needing continuous pneumatic energy.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X600 the Right Lock Cylinder?
Choose this SAILF model when your application requires the load to be held securely at the fully extended position during a power loss. If you need a higher force class, stepping up to an 80 mm bore provides 3518 N of push at 0.7 MPa; conversely, a 50 mm bore offers 1374 N if you need a lighter footprint. If your process requires locking at an arbitrary mid-stroke point rather than the extended end, select the BSAI clamp-lock cylinder instead.
For safe operation, avoid using a fast-exhaust valve, as back-pressure on the locker side can inadvertently release the lock; an independent-exhaust solenoid valve is required. Because this unit features a 600 mm stroke, adding an external guide rail is recommended to prevent excessive side-load wear on the rod and seals. When specifying a replacement, confirm the 63 mm bore, 600 mm stroke, front lock position, 3/8 PT port, and desired mounting style from the ISO 15552 set (Basic, FA, FB, TC, etc.). If human safety relies on the load staying extended, always add an independent mechanical safety measure.
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 SAILF63X600 FAQ
The 63 mm bore generates 1559 N of push force at 0.5 MPa and 2182 N at 0.7 MPa. The pull force is 1402 N at 0.5 MPa. Maximum operating pressure is 1.0 MPa.
The lock is spring-applied and air-released, engaging only at the extended stroke end after the rod stops. It is a static hold, not a mid-stroke clamp or dynamic brake. You unlock it by supplying air to the release port or by using the manual lever.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X600
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.