This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X25, 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 SID100X25
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X25 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 25mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X25, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke25 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X25
- 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 SID100X25
The AirTAC SID100X25 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, so push and pull force are equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It features a 100mm bore, 25mm rod, M20x1.5 thread, G1/2 port, and 36mm adjustable cushions. This SKU has no -S magnet and cannot take a sensor.
This SID model is discontinued and end-of-life. The direct replacement is the SAID100X25, sharing the same ISO 15552 interface, bore, stroke, force, and mounting. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. A plain cylinder drifts on air loss; cushions only decelerate. For held loads use SAIL/BSAI or an external rod lock.
Airtac SID Series Double-Rod Cylinder SID100X25 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X25 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X25 |
| Bore size | Ø100 mm |
| Stroke | 25 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 SAID100X25 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 SAID100X25 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 SID100X25
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×25 | 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 SID100X25 Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously from one piston, utilizing the equal both-ways force to ensure perfectly balanced cutting pressure on both ends.
Anti-Rotation Transfer Gate
Employs the twin-rod architecture to prevent mechanical twist during rapid part diversion on a packaging line, maintaining precise alignment without external guides.
Symmetric Pallet Stopper
Uses the extended rear rod to physically push a confirmation cam, sequencing the next pallet release while the front rod halts the incoming load.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X25 with the SAID100X25
To replace the discontinued SID100X25, specify the SAID100X25 direct. It reuses the exact ISO 15552 mounting (Basic, FA, LB, TC, FTC, TCM1, TCM2) and G1/2 port. Size both ways by checking neighbour bores; the 80mm bore yields 2268 N @0.5 MPa, and the 125mm bore yields 5734 N @0.5 MPa, both equal in push and pull. A double rod is right when you need anti-rotation, to drive two tools, or to mount a sensor cam on the back rod. This non-magnetic SKU cannot take a switch. For stroke lengths >=300, verify side-load limits. Speed is 30-800 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X25
- ✓ 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 SID100X25 FAQ
Yes, the AirTAC SID100X25 is discontinued. The direct replacement is the SAID100X25. It shares the same ISO 15552 interface, 100mm bore, 25mm stroke, G1/2 port, and mounting, but adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The G1/2 port feeds a double-acting double-rod design where force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It cannot hold a load on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X25
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X25 replacement — usually within 7-8 hours.