This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI40X1360S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI40 Standard Cylinder SI40X1360S
The AirTAC Airtac SI40 Standard Cylinder SI40X1360S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 1360mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI40X1360S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke1360 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAI40X1360S
- 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 SI40 Standard Cylinder SI40X1360S
The AirTAC SI40X1360S is a discontinued double-acting ISO 15552 profile cylinder with a 40mm bore and 1360mm stroke. Generating 628N push force at 0.5MPa, it is replaced by the SAI40X1360S direct equivalent. This upgrade retains the G1/4 port, M12x1.25 thread, and exact mounting interface.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. Stroke exceeds the 1200mm standard, requiring external guides to prevent rod bending.
Airtac SI40 Standard Cylinder SI40X1360S Technical Specifications
| Model | Airtac SI40 Standard Cylinder SI40X1360S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI40X1360S |
| Bore size | Ø40 mm |
| Stroke | 1360 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm 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, 27 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI40X1360S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAI40X1360S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI40 Standard Cylinder SI40X1360S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1360 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI40 Standard Cylinder SI40X1360S Is Used
Long-Stroke Diversion
Pushes packages across a 1.3m conveyor lane using the 628N push force, requiring external guides to prevent rod bending over the extended travel.
Pneumatic Transfer
Actuates a sliding carriage between machine cells over a 1360mm span, relying on adjustable air cushions to decelerate the carriage at ends.
Replacing the Airtac SI40 Standard Cylinder SI40X1360S with the SAI40X1360S
To replace the SI40X1360S, order the SAI40X1360S keeping the magnet and G1/4 port. Confirm the ISO 15552 mounting accessory. At 0.5MPa it yields 628N push; neighbouring bores offer 402N (32mm) or 982N (50mm). As 1360mm exceeds the 1200mm standard, add external guides to prevent rod bending. The cushion only decelerates; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI40X1360S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI40 Standard Cylinder SI40X1360S FAQ
Yes, the SI40X1360S is discontinued. The direct replacement is the SAI40X1360S, which shares the same ISO 15552 mounting interface, 40mm bore, 1360mm stroke, 628N force, and G1/4 port.
The 40mm bore features a G1/4 port and M12x1.25 rod thread. It delivers 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, 1130N push at 0.9MPa, and a maximum theoretical force of 128kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI40X1360S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI40X1360S replacement — usually within 7-8 hours.