This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X125STC, 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 SID100X125STC
The AirTAC SID Series Double-Rod Cylinder SID100X125STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 125mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X125STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X125STC
- 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 SID100X125STC
The AirTAC SID100X125STC is a discontinued double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring 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, G1/2 port, M20x1.5 rod thread, and 36mm adjustable cushions. The direct replacement is the SAID100X125STC, matching the interface, stroke, and TC mount.
Because both faces use the rod-side area, the second rod can drive two tools or carry a sensor cam without force loss. The SAI upgrade adds a two-piece Y-shaped piston seal for lower start-up pressure. Note: air cushions only decelerate; use an external rod lock or SAIL/BSAI variant for load holding.
Airtac SID Series Double-Rod Cylinder SID100X125STC Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X125STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X125STC |
| Bore size | Ø100 mm |
| Stroke | 125 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 SAID100X125STC 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 SAID100X125STC 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 SID100X125STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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 SID100X125STC Is Used
Dual-Spindle Machining
Drives two opposing machining heads simultaneously from a single piston, utilizing the equal both-ways force to maintain perfectly synchronized cutting feed rates.
Transfer Pusher
Uses the rear rod extension to mount a legacy CS1-B/DS1-B sensor cam for precise position feedback while the front rod pushes workpieces between conveyor stations.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X125STC with the SAID100X125STC
Replace the discontinued SID100X125STC directly with the SAID100X125STC, reusing the existing ISO 15552 TC mounting interface and G1/2 port. Size both ways by checking equal force: if 5153 N @0.7 MPa is insufficient, step up to bore 125, or drop to bore 80 if lower force is needed. A double rod is right when you need anti-rotation, dual-tool driving, or a back-side sensor cam. The -S suffix confirms a piston magnet for legacy CS1-B/DS1-B switches (SAI uses current switches). For this 125mm stroke, side-load is minimal, but for strokes >=300mm ensure guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X125STC
- ✓ 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 SID100X125STC FAQ
Yes, the SID100X125STC is discontinued. The direct replacement is the SAID100X125STC, offering the same ISO 15552 interface, 100mm bore, 125mm stroke, G1/2 port, and TC mounting compatibility.
It features a G1/2 air port and generates equal force both ways (push and pull) of 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It operates at 30-800 mm/s with 36mm adjustable cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X125STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X125STC replacement — usually within 7-8 hours.