Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50 is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 50mm 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
- Stroke50 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 SAILF160X50
The AirTAC SAILF160X50 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 a load in the rod-out position without requiring continuous live air pressure. With a 160mm bore, it generates 10053N of pull force at 0.5MPa, making it well-suited for heavy-duty positioning tasks.
The lock is strictly a static holding device for stroke-end positions, not a dynamic brake for a moving rod, and it cannot clamp at an arbitrary mid-stroke point. The variable air cushion at the locker end is notably shorter, measuring 28mm compared to the 50mm cushion on the free end. For position sensing, adding a magnet allows the use of AirTAC CMSE reed or DMSE electronic solid-state sensors in the dual-side barrel grooves.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 50 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 SAILF160X50 Is Used
Extended Load Holding
Maintains heavy lifted platforms securely at the extended rod-out position during power loss.
Safety Gate Stop
Locks a barrier open at the end of the stroke to ensure safe access for maintenance personnel.
Heavy Clamp Positioning
Holds a heavy workpiece firmly extended at the stroke end while downstream operations take place.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50 the Right Lock Cylinder?
Select this 160mm bore cylinder when an application demands heavy load holding at the rod-out extended position, stepping up from a 125mm bore that yields 5734N of pull at 0.5MPa. Choose the SAILF front-locker variant specifically when the extended stroke end is the required safety stop; for holding the retracted rod-in position, use the SAILB back-locker equivalent instead. If your process requires locking at an intermediate mid-stroke point rather than the end, the BSAI clamp-lock cylinder is the correct choice.
Because the SAIL lock is a static end-of-stroke device, it engages only after the cylinder has stopped. Avoid using a fast-exhaust valve with this cylinder; instead, specify an independent-exhaust solenoid valve, as 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, verify the 50mm stroke, front locker position, 3/4-inch PT port, and standard carbon steel rod material.
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 SAILF160X50 FAQ
At 0.5 MPa, the 160mm bore provides 10053N of pull force and 14074N of push force. The maximum operating pressure is 1.0 MPa.
The spring-applied, air-released lock engages automatically at the extended stroke end to hold the load statically. It unlocks by supplying air to the release port or by using the manual override lever.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.