Airtac SAILB Rear Lock Cylinder SAILB100X600
The AirTAC Airtac SAILB Rear Lock Cylinder SAILB100X600 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 SAILB100X600
The AirTAC SAILB100X600 is a double-acting profile cylinder with a built-in mechanical lock housed in the back cover. It secures the piston rod automatically at the retracted stroke end whenever release air is cut, using a spring-applied, air-released pin mechanism. Delivering 3927N of push force at 0.5MPa, it provides robust load holding without requiring continuous live air pressure.
Dimensionally interchangeable per ISO 15552, this unit features a 25mm carbon steel rod and a 1/2 inch PT tapered port. The variable air cushion at the locker end is 36mm, shorter than the free end, specifically accommodating the lock hardware. You can unlock via automatic air supply or the manual override lever.
Airtac SAILB Rear Lock Cylinder SAILB100X600 Technical Specifications
| Model | Airtac SAILB Rear Lock Cylinder SAILB100X600 |
|---|---|
| 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 SAILB100X600 Is Used
Vertical Load Holding
Prevents heavy elevated platforms from dropping during a power loss by locking the rod at the retracted stroke end without live air.
Pallet Stopper
Secures a conveyor flow at the rod-in position, holding heavy pallets firmly in place while processes complete.
Safety Gate Lock
Keeps machine access gates safely shut at the retracted position until the release air is actively supplied to unlock.
Is the Airtac SAILB Rear Lock Cylinder SAILB100X600 the Right Lock Cylinder?
Select this 100mm bore size when your application requires substantial thrust, such as the 5497N push force at 0.7MPa, but if you need less force, the 80mm bore provides 2513N at 0.5MPa. Choose this SAILB configuration to hold the load at the rod-in position; if you need to secure the extended position, select the SAILF variant instead. For locking at an arbitrary mid-stroke point, the BSAI clamp-lock cylinder is required.
This lock is a static holding device that engages after the cylinder stops, not a dynamic brake for a moving rod. Avoid using fast-exhaust valves, as back-pressure on the locker side can inadvertently release the lock; use an independent-exhaust solenoid valve. With a 600mm stroke, ensure adequate side-load support using a linear guide. For human safety, add an independent mechanical measure. Replacement parts must match bore, stroke, back lock position, PT port, and mounting.
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 SAILB100X600 FAQ
At 0.5MPa, the push force is 3927N and the pull force is 3681N. At 0.7MPa, the push force increases to 5497N, with a maximum push force of 7068N at 0.9MPa.
The spring-applied, air-released lock engages automatically when the piston reaches the retracted stroke end in the back cover. It is a static hold, not a mid-stroke clamp or dynamic brake. Unlocking is achieved by supplying air to the release port or using the manual override lever.
Related AirTAC Lock & Standard Cylinders
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