This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI40X1330SH, 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 SI40X1330SH
The AirTAC Airtac SI40 Standard Cylinder SI40X1330SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 1330mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI40X1330SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke1330 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAI40X1330SH
- 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 SI40X1330SH
The AirTAC SI40X1330SH is a discontinued double-acting ISO 15552 profile cylinder with a 40mm bore and 1330mm stroke. It delivers 628N push force at 0.5MPa via a G1/4 port. AirTAC replaced it with the SAI40X1330SH, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, and output. This 1330mm stroke exceeds the 1200mm standard maximum, making it a non-standard, made-to-order unit.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. It also supports high-temperature Viton H seals (0-150C) and rod material options like SUS304. The original -S magnet supports legacy CS1-B/DS1-B sensors.
Airtac SI40 Standard Cylinder SI40X1330SH Technical Specifications
| Model | Airtac SI40 Standard Cylinder SI40X1330SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI40X1330SH |
| Bore size | Ø40 mm |
| Stroke | 1330 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 SAI40X1330SH 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 SAI40X1330SH 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 SI40X1330SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1330 | 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 SI40X1330SH Is Used
Long-Stroke Material Transfer
Pushes workpieces between processing stations over extended distances, utilizing the 1330mm stroke and 628N force to move moderate loads smoothly.
High-Temperature Diverting
Actuates routing gates or deflectors in hot environments up to 150C, leveraging the Viton H seal option to maintain reliable operation without degradation.
Guided Elevator Lifting
Raises lighter fixtures or pallets up to 32kg in vertical lift applications, requiring external linear guides to support the extended 1330mm rod.
Replacing the Airtac SI40 Standard Cylinder SI40X1330SH with the SAI40X1330SH
To replace this SI cylinder, order the SAI40X1330SH. Confirm the ISO 15552 mounting interface, 40mm bore, 1330mm stroke, G1/4 port (PT/G/NPT thread), and mounting accessories. Because 1330mm exceeds the 1200mm standard maximum, expect a made-to-order lead time. At 0.5MPa, this bore yields 628N push and 528N pull; neighbouring bores are 32mm (402N push) and 50mm (982N push). For this 1330mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. The SAIF variant adds a built-in valve if needed.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI40X1330SH
- ✓ 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 SI40X1330SH FAQ
Yes, the SI40X1330SH is discontinued. The direct replacement is the SAI40X1330SH. It shares the same ISO 15552 mounting interface, 40mm bore, 1330mm stroke, output force, G1/4 port, and mounting accessories, fitting directly into existing fixtures.
It features a G1/4 air port and provides 628N push and 528N pull force at 0.5MPa. At 0.7MPa it pushes 879N, at 0.9MPa 1130N, with a theoretical maximum of 128kgf at 1.0MPa. It operates at 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI40X1330SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI40X1330SH replacement — usually within 7-8 hours.