This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X610S, 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 SI100X610S
The AirTAC SI100 Standard Cylinder SI100X610S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 610mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X610S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke610 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X610S
- 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 SI100X610S
The AirTAC SI100X610S is a discontinued double-acting ISO 15552 profile cylinder featuring a 610 mm stroke and a G1/2 port. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100X610S. This direct upgrade shares the exact same mounting interface, bore, and output force.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the legacy line.
Airtac SI100 Standard Cylinder SI100X610S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X610S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X610S |
| Bore size | Ø100 mm |
| Stroke | 610 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 SAI100X610S 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 SAI100X610S 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 SI100X610S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×610 | 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 SI100X610S Is Used
Heavy Material Transfer
Drives robust pallet stops and heavy-gauge workpiece diverters on high-capacity production lines using its 3927 N push force.
Large Press Ejection
Ejects molded or stamped components from large industrial presses, relying on adjustable end cushions to decelerate heavy masses.
Replacing the Airtac SI100 Standard Cylinder SI100X610S with the SAI100X610S
To replace the SI100X610S, order the SAI100X610S direct: verify the ISO 15552 interface, 100 mm bore, 610 mm stroke, G1/2 port, and the -S magnet for CS1-B/DS1-B sensors. When sizing, neighboring bores offer different capacities; an 80 mm bore provides 2513 N push at 0.5 MPa, while a 125 mm bore yields 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify an SAIL/BSAI variant. Because the 610 mm stroke exceeds 300 mm, use external guides to prevent rod bending and side-load damage. Rod material options include carbon steel, SUS420J2 (A), or SUS304 (B).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X610S
- ✓ 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 SI100X610S FAQ
Yes, the SI100X610S is discontinued. The direct replacement is the SAI100X610S. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 610 mm stroke, output force, G1/2 port, and mounting accessories.
The G1/2 port bore delivers a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa push is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X610S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X610S replacement — usually within 7-8 hours.