Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X500
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X500 is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm 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.
- BoreØ160 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 SAILF160X500
The AirTAC SAILF160X500 is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released mechanical lock housed in the front cover. Because the lock engages when the piston reaches the extended stroke end, it secures the rod-out position and holds heavy vertical loads without requiring continuous live air pressure. A 0.5 MPa supply generates a robust 10053N pull force, while the carbon steel rod handles high structural demands.
The lock is a static holding device, not a dynamic brake that stops a moving rod. It functions completely independently from the variable air cushions, which only decelerate the piston near the stroke terminals. Note that the cushion at the locker end is 28mm, intentionally shorter than the 50mm cushion on the free end to accommodate the locking hardware.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X500 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X500 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 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 (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 SAILF160X500 Is Used
Overhead Lift Safety
Secures heavy lifted loads in the extended position automatically when air pressure drops, preventing accidental falls.
Press Hold
Maintains maximum extended clamping force on a workpiece without consuming continuous pneumatic energy.
Gate Barrier Hold
Locks an extended barrier gate rigidly in place against wind or impact loads until the release air is supplied.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF160X500 the Right Lock Cylinder?
Choose this 160mm bore when a 125mm bore falls short of the required force, as stepping up provides a significant increase from 5734N to 10053N pull at 0.5 MPa. Select the SAILF front-locker variant when the application demands holding at the extended rod-out position, whereas a SAILB back-locker holds the retracted position. If your process requires clamping at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct alternative.
For safe operation, never use a fast-exhaust valve with this lock cylinder; always use an independent-exhaust solenoid valve because back-pressure on the locker side can unintentionally release the lock. Furthermore, if human safety depends on the load remaining elevated, implement an independent mechanical safety measure. When replacing this unit, verify the 500mm stroke, front locker position, 3/4 PT port threads, and standard carbon steel rod. Given the 500mm stroke, incorporating external guide rails is advised to prevent excessive side-load wear on the rod seals.
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 SAILF160X500 FAQ
At a 0.5 MPa operating pressure, this 160mm bore cylinder provides 10053N of push force and 9425N of pull force. At the maximum 1.0 MPa pressure, it achieves a push force of 2050 kgf.
The lock is spring-applied and air-released, engaging automatically when the piston reaches the extended stroke end in the front cover. It provides a static hold only, not mid-stroke clamping, and can be released automatically via air supply or manually via the release lever.
Related AirTAC Lock & Standard Cylinders
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