This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X900, 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 SID Series Double-Rod Cylinder SID100X900
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X900 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 900mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X900, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke900 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X900
- 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 SID Series Double-Rod Cylinder SID100X900
The AirTAC SID100X900 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. This geometry means both faces use the rod-side area, making push and pull force equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The bore is 100 mm, the port is G1/2, the rod thread is M20x1.5, and adjustable air cushions are 36 mm at each end. This legacy SID model is discontinued; the direct replacement is the SAID100X900, which shares the same ISO 15552 interface, bore, stroke, and mounting footprint.
The SAI upgrade path introduces an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and long life, plus SAIL and BSAI lock variants absent in the SI line. For this SKU without a -S magnet, no magnetic switch can be fitted. A plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so use an external rod lock for held loads.
Airtac SID Series Double-Rod Cylinder SID100X900 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X900 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X900 |
| Bore size | Ø100 mm |
| Stroke | 900 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 SAID100X900 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 SAID100X900 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID100X900
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 SID Series Double-Rod Cylinder SID100X900 Is Used
Equal-Force Transfer Station
Drives a conveyor divert arm where the return stroke must match the extend stroke force exactly, using the back rod to mount a counterweight cam.
Dual-Tool Machining Actuator
Powers two opposing machining heads from one piston, utilizing the equal both-ways 5153 N @0.7 MPa force to push and pull separate tools simultaneously.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X900 with the SAID100X900
To replace the discontinued SID100X900, install the direct replacement SAID100X900, matching the 100 mm bore, 900 mm stroke, G1/2 port, and ISO 15552 mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2). Size both ways by checking the equal push/pull force against neighbouring bores: if 5153 N @0.7 MPa is excessive, step down to an 80 mm bore (3175 N), or if more is needed, step up to 125 mm (8028 N). A double rod is right when you need equal both-ways force, anti-rotation stability, or a back rod to drive a second tool. Because this SKU lacks the -S magnet, it cannot support sensing. For the 900 mm stroke, add external guides to prevent rod bending and manage side loads. Speed is 30-800 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X900
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID100X900 FAQ
Yes, the SID100X900 is discontinued. The direct replacement is the SAID100X900. It shares the same ISO 15552 mounting interface, 100 mm bore, 900 mm stroke, G1/2 port, and equal both-ways force, but adds an upgraded piston seal.
The G1/2 port feeds a 100 mm bore with a 25 mm rod. Because it is double-rod, force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It lacks a -S magnet so it cannot take sensors.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X900
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X900 replacement — usually within 7-8 hours.