This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI40X1430SH, 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 SI40X1430SH
The AirTAC Airtac SI40 Standard Cylinder SI40X1430SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 1430mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI40X1430SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke1430 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAI40X1430SH
- 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 SI40X1430SH
The AirTAC SI40X1430SH is a discontinued double-acting ISO 15552 profile cylinder with a 40mm bore and 1430mm stroke. Because 1430mm exceeds the 1200mm standard maximum for this bore, it is a non-standard, made-to-order size. It delivers 628 N push force at 0.5 MPa. The direct replacement is the SAI40X1430SH, retaining the exact G1/4 port, M12x1.25 rod thread, and mounting interface.
The SAI upgrade features an improved piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This -H variant specifies a Viton FKM seal for 0-150 C high-temperature environments, while the -S magnet enables legacy CS1-B/DS1-B sensors.
Airtac SI40 Standard Cylinder SI40X1430SH Technical Specifications
| Model | Airtac SI40 Standard Cylinder SI40X1430SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI40X1430SH |
| Bore size | Ø40 mm |
| Stroke | 1430 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 SAI40X1430SH 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 SAI40X1430SH 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 SI40X1430SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1430 | 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 SI40X1430SH Is Used
Extended-Reach Diverting
Pushes products across wide conveyor belts using the 1430mm stroke, relying on external guides to prevent rod bending.
High-Temp Pallet Stops
Acts as a high-temperature (up to 150 C) stopper mechanism in heat-shrink or drying zones using the Viton H seal.
Long-Stroke Transfers
Moves lightweight components between workstations horizontally, operating safely within the 377 N working load limit.
Replacing the Airtac SI40 Standard Cylinder SI40X1430SH with the SAI40X1430SH
To replace this SI40X1430SH, order the SAI40X1430SH direct equivalent. Verify your ISO 15552 mounting fixtures, G1/4 port, and M12x1.25 rod thread. The 1430mm stroke is non-standard (exceeding the 1200mm max), so expect made-to-order lead times. At 1430mm, the 16mm rod is highly susceptible to bending; use external guides to prevent side loads. If you need less force, a 32mm bore offers 402 N push; if more, a 50mm bore yields 982 N. This cylinder does not hold load without live air—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI40X1430SH
- ✓ 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 SI40X1430SH FAQ
Yes, the SI40X1430SH is discontinued. The direct replacement is the SAI40X1430SH. It is dimensionally interchangeable per ISO 15552, matching the 40mm bore, 1430mm stroke, G1/4 port, and mounting interface.
It features a G1/4 air port. The 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI40X1430SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI40X1430SH replacement — usually within 7-8 hours.