Airtac SILF Front Locking Air Cylinder SILF50X450S
Genuine AirTAC ø50 mm end-lock iso 15552 cylinder, order code SILF50X450S from the SIL50 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Stroke450 mm
- MountingBasic (no mounting)
- VersionFront lock (F) · S · PT
- Bore sizeØ50 mm
- Stock strokes10 – 1200 mm
- Catalog standard strokeup to 1200 mm (longer on request)
- 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 SILF Front Locking Air Cylinder SILF50X450S
The SILF50X450S orders a 450 mm stroke version of AirTAC's 50 mm bore ISO 15552 end-lock cylinder, with the lock in the front (rod-end) cover and the S magnet fitted for position sensing. This series is discontinued: your order ships as SAILF50X450S, same code, new prefix, and the specifications described here are those of the replacement unit.
Across 450 mm of travel the 1/4" PT ports and M16x1.5 rod thread stay identical to every other SIL50 length, as do the numbers that matter for sizing: 982 N push and 825 N pull at 0.5 MPa, 1374 N push and 1155 N pull at 0.7 MPa. It works on 40 um filtered air from 0.15 to 1.0 MPa (proof 1.5 MPa), tolerates -20 to +70 C and runs 30 to 800 mm/s with adjustable air cushions. The lock grips the piston at the front cover when the lock-side port is exhausted, releasing automatically on air pressure or by its manual lever.
Airtac SILF Front Locking Air Cylinder SILF50X450S Technical Specifications
| Order code | SILF50X450S |
|---|---|
| Product | Ø50 mm end-lock ISO 15552 cylinder |
| Stroke | 450 mm |
| Mounting | Basic (no mounting) |
| Version | Front lock (F) · S · PT |
| Bore size | Ø50 mm |
|---|---|
| Stock strokes | 10 – 1200 mm |
| Catalog standard stroke | up to 1200 mm (longer on request) |
| Acting type | Double acting, with end lock |
| Lock position | Front cover (F) |
| Lock release | Automatic (air on the lock-side port) or manual lever |
| Port size | 1/4" (PT standard) |
| Piston rod / rod thread | Ø20 mm / M16×1.5 |
| Fluid | Air (filtered by 40 µm element) |
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable air cushions |
Source: AirTAC Products Catalog 2026A (PDF01-P0376/P0377), SAIL specifications and ordering code; body as SAI. The SILF/SILB series is discontinued; these are the SAILF/SAILB specifications.
How to choose
You are choosing between two neighbours: SILF50X400S if 400 mm covers the move, and SILF50X500S if you need the extra 50 mm. Going longer than the true travel adds length, weight and air use without any extra force. On the same 450 mm stroke you can order without the magnet (drop the S), switch to G (BSPP) threads with the G option, or add CA single clevis or TC center trunnion mounting instead of the basic version that uses the cylinder's own mounting holes; rear-cover locks (SILB) are not offered in this bore.
Applications
Sliding machine-guard door
Drive a heavy guard door over a 450 mm opening; the end lock keeps the door from drifting if the air supply drops, and the magnet reports open and closed positions.
Counterweight and take-up station
Tension or counterweight a 450 mm vertical travel with the lock holding position at the front cover during a supply loss.
Wide-frame clamping fixture
Clamp wide workpieces in a welding or machining fixture where the 450 mm stroke retracts the clamp fully clear for loading.
FAQ
What are the key figures of the SILF50X450S?
Bore 50 mm, stroke 450 mm, double acting with a front-cover end lock and built-in magnet. At 0.5 MPa it gives 982 N push and 825 N pull; at 0.7 MPa, 1374 N push and 1155 N pull. Ports 1/4" PT, rod thread M16x1.5 on a 20 mm rod, pressure 0.15 to 1.0 MPa with 1.5 MPa proof, -20 to +70 C, 30 to 800 mm/s, adjustable air cushions, basic mounting.
Is the SILF50X450S still available?
The SILF/SILB series is discontinued. AirTAC supplies the order code SILF50X450S as SAILF50X450S, its current replacement with the same code after the new prefix; the specifications above are those of the SAIL cylinder you receive.