This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X157SCA, 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 SI100X157SCA
The AirTAC Airtac SI100 Standard Cylinder SI100X157SCA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 157mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X157SCA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke157 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X157SCA
- 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 SI100X157SCA
The AirTAC SI100X157SCA is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 157mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa via a G1/2 port. The direct replacement is the SAI100X157SCA, maintaining the same interface, force, and CA clevis mount.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. It adds SAIL, SAIF, and BSAI lock variants the SI lacked. The -S magnet works with CS1-B/DS1-B switches. Note: 157mm is a nonstandard stroke.
Airtac SI100 Standard Cylinder SI100X157SCA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X157SCA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X157SCA |
| Bore size | Ø100 mm |
| Stroke | 157 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 SAI100X157SCA 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 SAI100X157SCA 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 SI100X157SCA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×157 | 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 SI100X157SCA Is Used
Heavy Press Clamping
Ideal for holding heavy automotive or structural components during machining, utilizing the 3927N push force at 0.5 MPa.
Pallet Diversion
Provides robust actuation for diverting heavy pallets on production lines, with the CA clevis mount handling pivoting loads.
Material Lift Gates
Suitable for lifting and lowering loaded material gates, where the 200kg vertical lift capacity handles substantial weight.
Replacing the Airtac SI100 Standard Cylinder SI100X157SCA with the SAI100X157SCA
To replace this SI100X157SCA, order the SAI100X157SCA. Verify the ISO 15552 CA clevis mount, G1/2 port, 157mm stroke, and -S magnet for CS1-B/DS1-B sensors. Sizing both ways: a 100mm bore yields 3927N push at 0.5MPa, while an 80mm bore gives 2513N. The 157mm stroke is nonstandard, so confirm exact end-of-stroke dimensions. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X157SCA
- ✓ 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 SI100X157SCA FAQ
Yes, the SI100X157SCA is discontinued. The direct replacement is the SAI100X157SCA. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 157mm stroke, G1/2 port, CA mounting, and output force.
This double-acting cylinder features a G1/2 port. It delivers 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical maximum of 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X157SCA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X157SCA replacement — usually within 7-8 hours.