Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100 is a genuine double-acting ISO 15552 profile cylinder with a Ø63mm bore, 100mm 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
- Stroke100 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 SAILF63X100
The AirTAC SAILF63X100 is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock in the front cover. Because the lock is spring-applied and air-released, cutting the release air automatically drives a lock pin into the rod, securely holding the load at the fully extended stroke end without requiring live pressure. In this 63mm bore class, the cylinder generates 1559N of push force and 1402N of pull force at 0.5 MPa, making it well-suited for medium-duty positioning tasks.
This model features a standard carbon steel piston rod and PT tapered port threads. The variable air cushion at the front lock end is engineered to 21mm, which is intentionally shorter than the 30mm cushion on the free back end to accommodate the locking hardware. For position sensing, you can add a magnet (-S) to the piston and mount AirTAC CMSE reed or DMSE solid-state sensors into the dual-side barrel grooves.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø63 mm |
| Stroke | 100 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 SAILF63X100 Is Used
Extended Lift Holding
Maintains a raised platform securely at the extended stroke end during a power loss, preventing accidental descent.
Pallet Stop Gate
Projects a stop pin to halt pallets on a line, locking firmly in the extended position to resist impact forces.
Outfeed Clamp Hold
Pushes a part out of a machine and holds it at the extended end without continuous air supply, saving energy.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF63X100 the Right Lock Cylinder?
Select this 63mm bore cylinder when your application requires 1559N of push force at 0.5 MPa, or step down to a 50mm bore (982N push) if the load is lighter. Choose this SAILF configuration specifically when the load must be held safely at the extended rod-out position; if you need to hold the retracted rod-in position, select the SAILB variant instead. If your process requires clamping at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct choice.
Remember that this lock is a static holding device that engages after the piston stops, not a dynamic brake for a moving rod. Avoid using fast-exhaust valves with this cylinder; instead, use an independent-exhaust solenoid valve, because back-pressure on the locker side can unintentionally release the lock. For safety-critical suspended loads, always add an independent mechanical safety measure. To match this replacement exactly, verify the 100mm stroke, front locker position, 3/8 inch PT ports, and your required mounting style from the ISO 15552 options.
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 SAILF63X100 FAQ
At a 0.5 MPa operating pressure, the 63mm bore provides 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
The lock is spring-applied and air-released, holding the rod only at the fully extended stroke end. It engages automatically when air is cut off, and releases by supplying air to the release port or by using the manual release lever.
Related AirTAC Lock & Standard Cylinders
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