Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X450
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X450 is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 450mm 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.
- BoreØ160 mm
- Stroke450 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 SAILF160X450
The AirTAC SAILF160X450 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock housed in the front cover. This mechanism engages automatically when the piston reaches the extended stroke end, securely holding the load without requiring live air pressure. Delivering 14074N of push force at 0.7 MPa, it features a 40mm carbon steel rod and a 3/4 PT port.
The lock-end variable air cushion measures 28mm, intentionally shorter than the 50mm cushion on the free end to accommodate the locking hardware. For position detection, you can add a magnet (-S) to use CMSE reed or DMSE electronic sensors. The lock is a static holding device, not a dynamic brake, and engages only after the cylinder stops moving.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X450 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X450 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 450 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 SAILF160X450 Is Used
Extended Load Holding
Maintains vertical loads securely at the extended stroke end during power loss, preventing gravity-driven drops in heavy lifting rigs.
Safety Gate Locking
Keeps heavy safety gates and barriers open at the full extended position without continuous air supply, releasing only when control air is restored.
Press Hold Cycle
Applies 14074N of clamping force at 0.7 MPa and mechanically locks the extended position to sustain pressure during manufacturing pauses.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X450 the Right Lock Cylinder?
Choose this 160mm bore when an application demands high thrust at the extended stroke end, such as 14074N at 0.7 MPa. If your load requires holding at the retracted position, select the SAILB160 instead, or step down to the 125mm bore for 8590N at 0.7 MPa if the force requirement is lower. If your process requires locking at an arbitrary mid-stroke point rather than the stroke terminal, select the BSAI clamp-lock cylinder instead.
When integrating this 450mm stroke cylinder, use a side-load guide to prevent rod bending under high thrust. Crucially, do not use a fast-exhaust valve; back-pressure on the locker side can unintentionally release the lock, so an independent-exhaust solenoid valve is required. For human-safety critical loads, always add an independent mechanical safety measure beyond the pneumatic lock. Replacement parts must match the 160mm bore, 450mm stroke, front lock position, PT port thread, and mounting type.
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 SAILF160X450 FAQ
At 0.7 MPa, the push force is 14074N and the pull force is 9425N. The maximum push force reaches 18095N at 0.9 MPa.
The spring-applied lock engages automatically when the rod reaches the extended stroke end, holding the load without live pressure. To unlock, supply air to the release port for automatic release or use the manual release lever. It is a static hold only, not a mid-stroke clamp or dynamic brake.
Related AirTAC Lock & Standard Cylinders
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