Airtac SAILB Rear Lock Cylinder SAILB100X1000S
The AirTAC SAILB Rear Lock Cylinder SAILB100X1000S is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 1000mm 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
- Stroke1000 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 SAILB100X1000S
The AirTAC SAILB100X1000-S is a double-acting ISO 15552 profile cylinder featuring a built-in mechanical lock in the back cover. Because the lock is spring-applied and air-released, cutting the release air drives the lock pin into the rod, securely holding the load at the retracted stroke-end without consuming live pressure. You can unlock automatically via the release port or manually via the lever. With a 100mm bore, it generates 5497N of push force and 3681N of pull force at 0.7 MPa.
This 1000mm stroke variant exceeds the 1500mm standard maximum, making it a non-standard configuration that requires a longer barrel. It includes a standard carbon steel rod and a -S magnet for position sensing using AirTAC CMSE reed or DMSE electronic solid-state switches. Note that the variable air cushion at the locker end is 24mm, which is shorter than the 36mm cushion at the free end, as the locking mechanism physically occupies end-cover space.
Airtac SAILB Rear Lock Cylinder SAILB100X1000S Technical Specifications
| Model | Airtac SAILB Rear Lock Cylinder SAILB100X1000S |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 1000 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 SAILB100X1000S Is Used
Vertical Lift Safety
Holds a raised load securely at the retracted stroke end when air pressure drops, preventing sudden drops in lifting jigs.
Conveyor Arrest
Locks a stopped actuator in the retracted position during a power failure to prevent conveyor line rollback.
Machine Guard Hold
Maintains a safety door in the open, retracted state without continuous air supply, cutting energy costs.
Is the Airtac SAILB Rear Lock Cylinder SAILB100X1000S the Right Lock Cylinder?
Choose this SAILB model when your application must secure a load safely at the fully retracted position upon power loss. If your cycle requires holding the load at an arbitrary mid-stroke point, select the BSAI clamp-lock cylinder instead, as the SAIL lock only engages at the stroke terminal. For lower force needs, a 80mm bore yields 3518N push at 0.5 MPa; for heavier lifting, a 125mm bore provides 6136N.
Remember that this lock is a static holding device, not a dynamic brake for a moving rod. Valve selection is critical: never use a fast-exhaust valve, and always use an independent-exhaust solenoid valve, because back-pressure on the locker side can inadvertently release the lock. If human safety depends on the load staying up, add an independent safety measure. At 1000mm of stroke, side-load forces are amplified, so rigid guidance is essential to prevent rod binding. Replacement parts must match the 100mm bore, 1000mm stroke, back locker position, PT 1/2 port threads, and the -S magnet.
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 SAILB100X1000S FAQ
At 0.7 MPa operating pressure, the 100mm bore provides 5497N of push force and 3681N of pull force. The maximum theoretical force is 801 kgf at 1.0 MPa.
The spring-applied, air-released lock engages only when the piston reaches the retracted stroke end in the back cover. It provides a static hold, not dynamic braking, and is released by supplying air to the release port or using the manual lever.
Related AirTAC Lock & Standard Cylinders
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