This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X112, 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 SI100X112
The AirTAC Airtac SI100 Standard Cylinder SI100X112 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 112mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X112, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke112 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X112
- 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 SI100X112
The AirTAC SI100X112 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 112mm stroke. It delivers 3927 N push force at 0.5 MPa. The direct replacement is the SAI100X112, retaining the exact G1/2 port, M20x1.5 rod thread and mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. This base SI SKU lacks a magnet, so it cannot take a sensor. For high heat, Viton H seals raise the limit to 150 C.
Airtac SI100 Standard Cylinder SI100X112 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X112 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X112 |
| Bore size | Ø100 mm |
| Stroke | 112 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 SAI100X112 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 SAI100X112 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 SI100X112
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×112 | 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 SI100X112 Is Used
Heavy Press Clamping
Ideal for holding heavy workpieces in machining fixtures, using the 3927 N push force at 0.5 MPa to secure parts against cutting loads.
Pallet Diverting
Drives robust diverters on high-mass packaging lines, where the 112mm stroke and 36mm adjustable cushion absorb kinetic energy at stroke ends.
Replacing the Airtac SI100 Standard Cylinder SI100X112 with the SAI100X112
To replace the SI100X112, order the SAI100X112. Confirm the ISO 15552 interface, 100mm bore, 112mm stroke, G1/2 port (PT/G/NPT) and mounting accessory. Because this specific SKU has no -S magnet, it cannot accept a CS1-B or DS1-B switch; order a magnet-equipped SAI if sensing is needed. Sizing both ways: a neighbouring 80mm bore gives 2513 N push at 0.5 MPa, while a 125mm bore yields 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. The SAIF variant integrates a 4M valve for bores up to 100mm.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X112
- ✓ 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 SI100X112 FAQ
Yes, the SI100X112 is discontinued. The direct replacement is the SAI100X112. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 112mm stroke, 3927 N force, G1/2 port and mounting fixtures.
The G1/2 port bore delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X112
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X112 replacement — usually within 7-8 hours.