Airtac SAILB Rear Lock Cylinder SAILB100X160
The AirTAC Airtac SAILB Rear Lock Cylinder SAILB100X160 is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 160mm 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
- Stroke160 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 SAILB100X160
The AirTAC SAILB100X160 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock housed in the back cover. This lock engages when the piston reaches the retracted stroke end, securely holding the load without requiring continuous live air pressure. In the 100mm bore class, it delivers a push force of 3927N and a pull force of 3681N at 0.5 MPa, making it well-suited for heavy-duty holding tasks.
The lock is released automatically by supplying air to the release port or manually via the lever. Unlike a dynamic brake, this is a static holding mechanism that engages only after the rod stops. The variable air cushion at the locker end is 24mm, intentionally shorter than the 36mm cushion on the free end to accommodate the locking hardware. The standard carbon steel rod and PT tapered ports ensure robust performance and a reliable seal.
Airtac SAILB Rear Lock Cylinder SAILB100X160 Technical Specifications
| Model | Airtac SAILB Rear Lock Cylinder SAILB100X160 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 160 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 SAILB100X160 Is Used
Vertical Load Holding
Secures elevated loads at the retracted stroke end immediately upon pneumatic power loss, preventing sudden drops without needing live pressure.
Safety Gate Locking
Keeps heavy industrial safety gates firmly shut in the retracted position until an intentional air signal unlocks the mechanism.
Clamp and Hold
Maintains high-force clamping pressure on heavy workpieces at the end of the stroke, ensuring zero movement during machining operations.
Is the Airtac SAILB Rear Lock Cylinder SAILB100X160 the Right Lock Cylinder?
Choose this 100mm bore size when a 80mm cylinder (providing 2513N push at 0.5 MPa) lacks the thrust for your load, or step down if a 63mm bore (1559N) is sufficient. Select this SAILB configuration when the load must be held at the retracted rod-in position; choose SAILF instead if the extended position requires holding. If your application requires clamping at an arbitrary mid-stroke point rather than the stroke end, the AirTAC BSAI clamp-lock cylinder is the correct alternative.
For safe operation, never use a fast-exhaust valve with this lock cylinder; use an independent-exhaust solenoid valve to prevent back-pressure on the locker side from accidentally releasing the lock. Always add an independent safety measure if human safety depends on the load staying elevated. Replacement parts must match the 100mm bore, 160mm stroke, back locker position, PT ports, and standard carbon steel rod. This unit operates at speeds from 30-800 mm/s and uses the full ISO 15552 mounting set including Basic, FA, FB, CA, CB, CR, LB, TC, FTC, TCM1, and TCM2.
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 SAILB100X160 FAQ
The 100mm bore provides a push force of 3927N and a pull force of 3681N at 0.5 MPa. At 0.7 MPa, the push force increases to 5497N, with a maximum push force of 7068N at 0.9 MPa.
The lock is spring-applied and air-released, engaging statically at the retracted stroke end to hold the load without live air. It unlocks automatically via air supply to the release port or manually via a lever, but it does not stop a moving rod or clamp at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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