This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X600SFA, 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 SI100X600SFA
The AirTAC Airtac SI100 Standard Cylinder SI100X600SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 600mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X600SFA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke600 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X600SFA
- 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 SI100X600SFA
The AirTAC SI100X600SFA is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 600mm stroke. It delivers 3927N push force at 0.5MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100X600SFA, a direct replacement retaining the exact FA flange mount, M20x1.5 rod thread, and interface dimensions.
The SAI upgrade features a revised piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. It also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line. The included magnet supports CS1-B/DS1-B sensors, while Viton H seals expand the temperature range up to 150C.
Airtac SI100 Standard Cylinder SI100X600SFA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X600SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X600SFA |
| Bore size | Ø100 mm |
| Stroke | 600 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 SAI100X600SFA 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 SAI100X600SFA 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 SI100X600SFA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×600 | 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 SI100X600SFA Is Used
Heavy Material Transfer
Drives robust pallet stops and diverter arms on high-capacity conveyor lines, utilizing the 3927N push force to reliably shift heavy loads over the 600mm travel.
Automated Warehousing
Actuates large vertical lifting gates and heavy-load pushers within automated storage systems, where the FA flange mount handles substantial structural weight.
Large Press Feeders
Feeds heavy sheet metal or bulk blanks into large industrial presses, benefiting from the adjustable 36mm air cushions to decelerate high-speed movements.
Replacing the Airtac SI100 Standard Cylinder SI100X600SFA with the SAI100X600SFA
To replace the discontinued SI100X600SFA, order the SAI100X600SFA. Verify your ISO 15552 FA flange mounting dimensions, 600mm stroke, G1/2 port, and the -S magnet for legacy CS1-B/DS1-B switches. When sizing, neighboring bores offer different forces: an 80mm bore provides 2513N push at 0.5MPa, while a 125mm bore yields 6136N. This 100mm bore generates 3927N push and 3681N pull at 0.5MPa, peaking at 801kgf at 1.0MPa. Because the 600mm stroke is long, use external guides to prevent rod bending and side-load wear. A standard cylinder drifts without live air; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant instead of relying on the 36mm air cushions.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X600SFA
- ✓ 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 SI100X600SFA FAQ
Yes, the SI100X600SFA is discontinued. The direct replacement is the AirTAC SAI100X600SFA. It matches the ISO 15552 mounting interface, 100mm bore, 600mm stroke, output force, G1/2 port, and FA flange, fitting existing fixtures perfectly.
This double-acting cylinder uses a G1/2 air port. At 0.5MPa it provides 3927N push and 3681N pull force. At 0.7MPa push is 5497N, and at 0.9MPa it is 7068N. The theoretical maximum force is 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X600SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X600SFA replacement — usually within 7-8 hours.