This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI40X1560, 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 SI40X1560
The AirTAC Airtac SI40 Standard Cylinder SI40X1560 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 1560mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI40X1560, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke1560 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAI40X1560
- 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 SI40X1560
The AirTAC SI40X1560 is a discontinued double-acting ISO 15552 profile cylinder with a 40mm bore and 1560mm stroke. Generating 628N push at 0.5MPa, this non-standard stroke unit is made-to-order and requires the direct replacement SAI40X1560. The SAI matches the G1/4 port, M12x1.25 thread, and 27mm cushion exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. Without a -S suffix, this SKU cannot take a sensor. For high temps, Viton H seals allow 0-150C.
Airtac SI40 Standard Cylinder SI40X1560 Technical Specifications
| Model | Airtac SI40 Standard Cylinder SI40X1560 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI40X1560 |
| Bore size | Ø40 mm |
| Stroke | 1560 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 SAI40X1560 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 SAI40X1560 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 SI40X1560
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1560 | 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 SI40X1560 Is Used
Long-Stroke Material Transfer
Drives goods across extended workstations where the 1560mm reach and 628N push force at 0.5MPa are sufficient for moving light assemblies.
High-Bay Push-Out Arm
Actuates pusher mechanisms in storage retrieval systems, utilizing the full 1560mm extension to reach deep into racking bays.
Elevated Platform Lowering
Controls the descent of light fixtures using adjustable 27mm cushions, though an external check valve is required to hold the load safely.
Replacing the Airtac SI40 Standard Cylinder SI40X1560 with the SAI40X1560
To replace the SI40X1560, order the SAI40X1560. Verify the ISO 15552 interface, G1/4 port, and mounting accessory. Because the 1560mm stroke exceeds the 1200mm standard max, it is non-standard; at this length, prevent rod bending by adding external guides to manage side-loads. This SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. For sizing, a 32mm bore offers 402N push, while a 50mm bore provides 982N. The cushion only decelerates; it does not hold load. For load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI40X1560
- ✓ 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 SI40X1560 FAQ
Yes, the SI40X1560 is discontinued. The direct replacement is the SAI40X1560. It is dimensionally interchangeable per ISO 15552, retaining the same 40mm bore, 1560mm stroke, force, G1/4 port, and mounting interface.
The bore is 40mm with a G1/4 air port. At 0.5MPa it provides 628N push and 528N pull. At 0.7MPa push is 879N, and 1130N at 0.9MPa. The theoretical maximum force is 128kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI40X1560
Send us the quantity and destination. We confirm price, stock and lead time on the SAI40X1560 replacement — usually within 7-8 hours.