This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI40AX130, 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 SI40AX130
The AirTAC Airtac SI40 Standard Cylinder SI40AX130 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 130mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI40AX130, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke130 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAI40AX130
- 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 SI40AX130
The AirTAC SI40AX130 is a discontinued double-acting ISO 15552 profile cylinder featuring a 40mm bore, 130mm stroke, and a SUS420J2 stainless steel piston rod. It delivers 628N push force at 0.5MPa through a G1/4 port. The direct replacement is the SAI40AX130, matching the bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and longevity. Note this SKU lacks a magnet and cannot accept a sensor.
Airtac SI40 Standard Cylinder SI40AX130 Technical Specifications
| Model | Airtac SI40 Standard Cylinder SI40AX130 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI40AX130 |
| Bore size | Ø40 mm |
| Stroke | 130 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 SAI40AX130 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 SAI40AX130 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 SI40AX130
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×130 | 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 SI40AX130 Is Used
Stainless Rod Clamping
Ideal for mid-force clamping tasks where the SUS420J2 rod resists moisture, providing 628N of reliable push force.
Package Diverting
Drives 130mm diverting arms on packaging lines, moving light to medium cartons with a 32kg safe vertical lift capacity.
Gripper Actuation
Actuates end-of-arm pneumatic grippers for pick-and-place routines, fitting directly into existing ISO 15552 fixtures.
Replacing the Airtac SI40 Standard Cylinder SI40AX130 with the SAI40AX130
To replace the SI40AX130, order the SAI40AX130. Confirm the ISO 15552 mounting interface, 130mm stroke, G1/4 port, and SUS420J2 rod. Sizing both ways: a 32mm bore yields 402N push at 0.5MPa, while a 50mm bore yields 982N. At 0.7MPa this 40mm bore pushes 879N. This non-magnet SKU cannot take a CS1-B/DS1-B switch. Air cushions only decelerate; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variant. At 130mm stroke, side-load risks are low, but ensure correct rod alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI40AX130
- ✓ 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 SI40AX130 FAQ
Yes, the AirTAC SI40AX130 is discontinued. The direct replacement is the SAI40AX130. It shares the exact same ISO 15552 mounting interface, 40mm bore, 130mm stroke, G1/4 port, and output force, fitting existing fixtures perfectly while upgrading the piston seal.
This double-acting cylinder uses a G1/4 air port. At 0.5MPa it pushes 628N and pulls 528N. At 0.7MPa it pushes 879N, and 1130N at 0.9MPa. The theoretical maximum force is 128kgf at 1.0MPa. The rod is 16mm with an M12x1.25 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI40AX130
Send us the quantity and destination. We confirm price, stock and lead time on the SAI40AX130 replacement — usually within 7-8 hours.