This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI40X60SCA, 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 SI40X60SCA
The AirTAC Airtac SI40 Standard Cylinder SI40X60SCA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 60mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI40X60SCA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke60 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAI40X60SCA
- 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 SI40X60SCA
The AirTAC SI40X60SCA is a discontinued double-acting ISO 15552 profile cylinder featuring a 40mm bore, 60mm stroke, and a CA clevis mount. Built with an extruded aluminum barrel and adjustable air cushions, it delivers a push force of 628 N at 0.5 MPa. The direct replacement is the SAI40X60SCA, matching the bore, stroke, output force, G1/4 port, and ISO 15552 mounting interface for seamless fixture integration.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for extended lifespan and lower start-up pressure. This model includes a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAI family uses current AirTAC switches.
Airtac SI40 Standard Cylinder SI40X60SCA Technical Specifications
| Model | Airtac SI40 Standard Cylinder SI40X60SCA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI40X60SCA |
| Bore size | Ø40 mm |
| Stroke | 60 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 SAI40X60SCA 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 SAI40X60SCA 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 SI40X60SCA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×60 | 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 SI40X60SCA Is Used
Clamp Actuation
Provides reliable 628 N push force at 0.5 MPa for securing medium workpieces during machining or welding operations.
Package Diverting
Ideal for short 60mm stroke diverting arms on packaging lines, offering fast 30-800 mm/s cycling with CA clevis pivoting.
Replacing the Airtac SI40 Standard Cylinder SI40X60SCA with the SAI40X60SCA
To replace the discontinued SI40X60SCA, order the SAI40X60SCA, ensuring you keep the 40mm bore, 60mm stroke, G1/4 port, CA clevis mounting, and the -S magnet option. The SAI is dimensionally interchangeable per ISO 15552 and drops directly into existing fixtures. When sizing, consider neighboring bores: a 32mm bore yields 402 N push at 0.5 MPa, while a 50mm bore provides 982 N. Note that a plain cylinder does not hold load without live air; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or explore the SAIL (air-released lock) and BSAI (clamp-lock) variants. The SAIF variant with a built-in 4M valve is also available for bores 32-100.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI40X60SCA
- ✓ 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 SI40X60SCA FAQ
Yes, the SI40X60SCA is discontinued. The direct replacement is the SAI40X60SCA. It features the same ISO 15552 mounting interface, 40mm bore, 60mm stroke, G1/4 port, and output force, fitting directly into existing fixtures.
This 40mm bore cylinder 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 maximum of 128 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI40X60SCA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI40X60SCA replacement — usually within 7-8 hours.