This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI40X1300, 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 SI40X1300
The AirTAC SI40 Standard Cylinder SI40X1300 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 1300mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI40X1300, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke1300 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAI40X1300
- 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 SI40X1300
The AirTAC SI40X1300 is a discontinued double-acting ISO 15552 profile cylinder with a 40 mm bore and 1300 mm stroke. It delivers 628 N push force at 0.5 MPa via a G1/4 port. The direct replacement is the SAI40X1300, matching the interface, force, and stroke. This 1300 mm length is non-standard (exceeding the 1200 mm max), requiring made-to-order production and external guides to prevent rod bending.
The SAI40X1300 upgrades the piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU lacks a magnet (-S) so it cannot take a sensor; legacy CS1-B/DS1-B switches only fit magnetized versions. For load holding, use the SAIL lock or BSAI clamp-lock variants, as cushions only decelerate.
Airtac SI40 Standard Cylinder SI40X1300 Technical Specifications
| Model | Airtac SI40 Standard Cylinder SI40X1300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI40X1300 |
| Bore size | Ø40 mm |
| Stroke | 1300 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 SAI40X1300 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 SAI40X1300 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 SI40X1300
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1300 | 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 SI40X1300 Is Used
Extended Transfer Push
Moves workpieces between distant stations on a wide conveyor line using the 1300 mm reach.
High Bay Ejection
Pushes totes from deep storage racking where a 628 N force handles standard bin weights.
Long Stroke Lowering
Lowers packaging flaps over tall pallet loads, requiring external guides to prevent rod bending.
Replacing the Airtac SI40 Standard Cylinder SI40X1300 with the SAI40X1300
To replace the SI40X1300, order the SAI40X1300 keeping the exact 40 mm bore, 1300 mm stroke, G1/4 port, and ISO 15552 mounting. Confirm your thread option (PT, G, or NPT) and mounting accessory (LB, FA, TC, etc.). Since this 1300 mm stroke exceeds the 1200 mm standard maximum, it is non-standard and demands external guides to manage side-load and rod-bending risks. Sizing both ways: a neighboring 32 mm bore yields 402 N push at 0.5 MPa, while a 50 mm bore yields 982 N. This SKU has no magnet, meaning no sensor can be fitted. The SAI family also offers SAIF (built-in valve) and SAIL (air-released lock) variants if needed. Note: cushions decelerate but do not hold load on air loss.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI40X1300
- ✓ 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 SI40X1300 FAQ
Yes, the AirTAC SI40X1300 is discontinued. The direct replacement is the SAI40X1300. It is dimensionally interchangeable per ISO 15552, keeping the same 40 mm bore, 1300 mm stroke, 628 N force, G1/4 port, and mounting interface.
The 40 mm bore uses a G1/4 port and M12x1.25 rod thread. Force ratings are: 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, 1130 N push at 0.9 MPa, and a theoretical max of 128 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI40X1300
Send us the quantity and destination. We confirm price, stock and lead time on the SAI40X1300 replacement — usually within 7-8 hours.