This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X40SCA, 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 SI100 Standard Cylinder SI100X40SCA
The AirTAC Airtac SI100 Standard Cylinder SI100X40SCA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 40mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X40SCA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke40 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X40SCA
- 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 SI100 Standard Cylinder SI100X40SCA
The AirTAC SI100X40SCA is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 40mm stroke. It delivers 3927N of push force at 0.5MPa via a G1/2 port. The direct replacement is the SAI100X40SCA, retaining the exact same CA clevis mounting interface, output force, and dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. For load holding, note that a standard cylinder drifts without live air; the cushion only decelerates. The SAI family adds SAIL, SAIF, and BSAI lock variants. Your -S magnet supports CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X40SCA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X40SCA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X40SCA |
| Bore size | Ø100 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI100X40SCA carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X40SCA produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X40SCA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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 SI100 Standard Cylinder SI100X40SCA Is Used
Heavy-Duty Pressing
Applies 3927N of thrust at 0.5MPa for seating bearings, stamping components, or forming light gauge materials in automated machinery.
Pallet Diverting
Uses the CA clevis mount to pivot a heavy lane deflector, smoothly routing high-weight pallets on a packaging line with a short 40mm stroke.
Replacing the Airtac SI100 Standard Cylinder SI100X40SCA with the SAI100X40SCA
To replace the SI100X40SCA, order the SAI100X40SCA. Verify your ISO 15552 CA clevis mounting, 100mm bore, 40mm stroke, G1/2 port, and the -S magnet for CS1-B/DS1-B switches. If sizing up or down, neighbouring bores are 80mm and 125mm. At 0.5MPa, this 100mm bore yields 3927N push and 3681N pull force. Because the stroke is 40mm, side-load risks are minimal, but always ensure rigid alignment. Remember that a plain cylinder does not hold load on air loss; for secure holding, use an external pilot check valve or the SAIL/BSAI lock variants. Rod material options include carbon steel, SUS420J2, or SUS304.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X40SCA
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X40SCA FAQ
Yes, the AirTAC SI100X40SCA is discontinued. The direct replacement is the SAI100X40SCA. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 40mm stroke, G1/2 port, CA clevis mount, and output force.
The bore is 100mm with a G1/2 air port. The thrust is 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a maximum theoretical force of 801kgf at 1.0MPa. The piston rod is 25mm with an M20x1.5 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X40SCA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X40SCA replacement — usually within 7-8 hours.