Airtac SAILB Rear Lock Cylinder SAILB100X600S
The AirTAC SAILB Rear Lock Cylinder SAILB100X600S is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm 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.
- BoreØ100 mm
- Stroke600 mm
- Port sizeG1/2
- Lock positionBack cover
- Rod threadM20×1.5
- 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 SAILB Rear Lock Cylinder SAILB100X600S
The AirTAC SAILB100X600-S is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock housed in the back cover. This lock engages automatically to hold the rod securely at the retracted stroke end whenever the release air is cut, dropping the load safely without relying on live pressure. In the 100mm bore class, it delivers a robust 5497N push force at 0.7MPa, utilizing a 25mm carbon steel rod for high side-load resilience.
Because this is a long 600mm stroke unit, external guide rails are recommended to prevent rod bending under heavy lateral loads. The lock mechanism requires a shorter 24mm cushion at the locker end compared to the 36mm cushion on the free end, cleanly decelerating the piston before the static lock engages. Equipped with a magnet (-S), it supports AirTAC CMSE reed and DMSE electronic solid-state sensors for precise end-position detection.
Airtac SAILB Rear Lock Cylinder SAILB100X600S Technical Specifications
| Model | Airtac SAILB Rear Lock Cylinder SAILB100X600S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 600 mm |
| Acting type | Double acting, with lock |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable (36 mm free end / 24 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SAILB100X600S Is Used
Vertical Lift Safety
Holds heavy vertical loads securely at the retracted end during a power loss, preventing sudden drops on lifting platforms.
Pallet Stop Gate
Locks a 600mm extended stop gate in the retracted position to hold pallets safely without consuming continuous air.
Clamp and Hold
Maintains a retracted clamping arm under load at the stroke end, ensuring stable positioning during machining cycles.
Is the Airtac SAILB Rear Lock Cylinder SAILB100X600S the Right Lock Cylinder?
Choose this 100mm bore when 80mm (3518N push at 0.5MPa) is insufficient or 125mm (8590N push at 0.5MPa) is physically oversized. Select the SAILB configuration specifically when the load must be held at the rod-in position. If your application requires clamping at an arbitrary mid-stroke point rather than a stroke-end hold, the BSAI clamp-lock cylinder is the correct choice instead.
Remember that this lock is a static holding device, not a dynamic brake for a moving rod. Never use a fast-exhaust valve with this cylinder; always use an independent-exhaust solenoid valve, as back-pressure on the locker side can inadvertently release the lock. For overhead lifting where human safety is a factor, add an independent mechanical safety measure. Replacement matches must specify 100mm bore, 600mm stroke, PT 1/2 port threads, back locker position, 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 SAILB100X600S FAQ
At 0.5MPa it provides 3927N push and 3681N pull force. At 0.7MPa the push force is 5497N, and it reaches a maximum push of 7068N at 0.9MPa.
The spring-applied, air-released lock engages only at the retracted stroke end to hold the load statically without live pressure. You can unlock it automatically by supplying air to the release port, or use the manual release lever.
Related AirTAC Lock & Standard Cylinders
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