Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X1000
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X1000 is a genuine double-acting ISO 15552 profile cylinder with a Ø80mm bore, 1000mm stroke and a built-in spring-applied, air-released mechanical lock in the front cover — it holds the load at the extended (rod-out) stroke end even when air is lost.
- BoreØ80 mm
- Stroke1000 mm
- Port sizeG3/8
- Lock positionFront 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 SAILF Front Locking Pneumatic Cylinder SAILF80X1000
The AirTAC SAILF80X1000 is a double-acting profile cylinder dimensionally interchangeable per ISO 15552, featuring a built-in mechanical lock housed in the front cover. This spring-applied, air-released lock safely holds the rod at the fully extended stroke end, retaining the load without requiring continuous live air pressure. In the 80mm bore class, the carbon steel rod delivers a robust 3518N of push force at 0.7MPa, making it highly capable for heavy linear thrust tasks.
A key design detail is that the variable air cushion at the locker end is physically shorter (22.5mm) than the free-end cushion (36mm), ensuring precise deceleration without interfering with the locking mechanism. The lock releases automatically via air supply or through a manual override lever. For position sensing, adding a magnet allows the use of AirTAC CMSE reed or DMSE electronic solid-state sensors in the dual-side barrel grooves.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X1000 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X1000 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø80 mm |
| Stroke | 1000 mm |
| Acting type | Double acting, with lock |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released (front 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 / 22.5 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 extended (rod-out) 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 front-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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SAILF Front Locking Pneumatic Cylinder SAILF80X1000 Is Used
Extended Load Holding
Maintains vertical loads securely at the fully extended stroke end during a power loss, preventing gravity-driven collapses without relying on continuous air pressure.
Long-Stroke Material Stop
Acts as a rigid stop for long-actuation conveyor lines, holding the extended position firmly against heavy product flow using the mechanical lock.
Safety Gate Hold
Keeps heavy safety gates and machine guarding open at the end of the 1000mm stroke, requiring an intentional air signal to release the lock and close.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X1000 the Right Lock Cylinder?
Choose this 80mm bore when substantial thrust is required; stepping down to a 63mm bore reduces the push force to 2182N at 0.7MPa, while moving up to a 100mm bore increases it to 5497N. Select the SAILF configuration specifically when the load must be safely held at the extended rod-out position; conversely, SAILB holds at the retracted position. If your application requires clamping at an arbitrary mid-stroke point rather than the stroke end, the BSAI clamp-lock cylinder is the correct alternative.
Because this model features a 1000mm stroke, which exceeds the standard 1500mm maximum for this bore, it is a non-standard build that demands a side-load guide to prevent rod bending and premature seal wear. Remember that this is a static holding lock that engages after the cylinder stops, not a dynamic brake for moving rods. Never use a fast-exhaust valve with this unit; an independent-exhaust solenoid valve is required because back-pressure on the locker side can unintentionally release the lock. If human safety depends on the load staying extended, add an independent mechanical safety measure as well.
Quick checklist
- ✓ Hold needed at the extended (rod-out) end?
- ✓ Or lock anywhere → use BSAI
- ✓ Independent-exhaust valve fitted
- ✓ Port/thread type (PT/G)
- ✓ Extra safety measure for people
Airtac SAILF Front Locking Pneumatic Cylinder SAILF80X1000 FAQ
The 80mm bore provides a push force of 3518N and a pull force of 2268N at 0.7MPa. At 0.5MPa, it delivers 2513N of push force and 2268N of pull force.
The lock is spring-applied and air-released, engaging only when the piston reaches the extended stroke end in the front cover. It provides a static hold after the rod stops, releasing automatically via air supply or a manual lever. It does not clamp at mid-stroke.
Related AirTAC Lock & Standard Cylinders
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