Airtac SAILB Rear Lock Cylinder SAILB160X600S
The AirTAC Airtac SAILB Rear Lock Cylinder SAILB160X600S is a genuine double-acting ISO 15552 profile cylinder with a Ø160mm bore, 600mm stroke and a built-in spring-applied, air-released mechanical lock in the back cover — it holds the load at the retracted (rod-in) stroke end even when air is lost.
- BoreØ160 mm
- Stroke600 mm
- Port sizeG3/4
- Lock positionBack cover
- Rod threadM36×2
- UnlockAir + manual
About the Airtac SAILB Rear Lock Cylinder SAILB160X600S
The AirTAC SAILB160X600-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released mechanical lock housed in the back cover. This lock engages automatically when the piston reaches the retracted stroke end, securely holding a load of up to 9425N pull at 0.5MPa without requiring continuous live air pressure. It features a standard carbon steel rod and a built-in magnet compatible with CMSE reed and DMSE electronic sensors.
Because the lock physically clamps the rod at the terminal position, the variable air cushion at the locker end is intentionally shorter at 28mm compared to the 50mm cushion on the free end. The lock is a static holding device, not a dynamic brake, meaning it secures the rod only after the cylinder has come to a complete stop at the retracted position.
Airtac SAILB Rear Lock Cylinder SAILB160X600S Technical Specifications
| Model | Airtac SAILB Rear Lock Cylinder SAILB160X600S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø160 mm |
| Stroke | 600 mm |
| Acting type | Double acting, with lock |
| Port size | G3/4 |
| Rod thread | M36×2 |
| Lock type | Spring-applied, air-released (back 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 retracted (rod-in) 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 back-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 SAILB Rear Lock Cylinder SAILB160X600S Is Used
Vertical Lift Power-Off Safety
Secures heavy lifted loads in the fully retracted position instantly upon air pressure loss, preventing sudden drops on large vertical actuators.
Heavy Clamp Holding
Maintains high clamping force at the rod-in stroke end without consuming continuous compressed air, saving energy during long hold cycles.
Safety Gate Interlock
Locks heavy safety gates or machine guards in the closed retracted position, requiring an active air signal to release the mechanism.
Is the Airtac SAILB Rear Lock Cylinder SAILB160X600S the Right Lock Cylinder?
Choose this 160mm bore when substantial force is required, delivering 10053N push and 9425N pull at 0.5MPa. If your application requires less force, stepping down to a 125mm bore provides 6136N push and 5734N pull, whereas moving up to a 200mm bore yields 15708N push and 15080N pull. Select the SAILB configuration when the load must be safely held at the retracted rod-in position, and choose SAILF instead if the extended rod-out position needs securing.
If your machinery requires locking at an arbitrary mid-stroke point rather than the stroke end, you must select the BSAI clamp-lock cylinder instead. For the SAILB160X600-S, ensure you use an independent-exhaust solenoid valve; never use a fast-exhaust valve, as back-pressure on the locker side can inadvertently release the lock. Given the 600mm stroke, incorporating an external guide is highly recommended to prevent excessive side-load wear on the rod. To replace this unit, match the 160mm bore, 600mm stroke, back locker position, PT tapered ports, and the -S magnet option.
Quick checklist
- ✓ Hold needed at the retracted (rod-in) end?
- ✓ Or lock anywhere → use BSAI
- ✓ Independent-exhaust valve fitted
- ✓ Port/thread type (PT/G)
- ✓ Extra safety measure for people
Airtac SAILB Rear Lock Cylinder SAILB160X600S 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 delivers 2050 kgf of maximum thrust.
The lock is spring-applied and air-released, engaging only when the piston reaches the retracted stroke end in the back cover. It is a static hold that stops the rod from moving after it has stopped, not a mid-stroke clamp or dynamic brake, and can be released automatically via air or manually.
Related AirTAC Lock & Standard Cylinders
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