This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID125X100S, 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 SID125X100S
The AirTAC Airtac SID Series Double-Rod Cylinder SID125X100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID125X100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAID125X100S
- 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 SID125X100S
The AirTAC SID125X100S is a discontinued ISO 15552 double-acting double-rod cylinder where a rod exits both ends, yielding equal force in both directions (5734 N at 0.5 MPa). It features a 125 mm bore, M27x2 rod thread, G1/2 port, and 40 mm adjustable cushions. The direct replacement is the SAID125X100S, which reuses the same mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure.
Because both faces use the rod-side area, push and pull forces are identical, preventing rod drift and supporting two opposing tools. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors. Note that air cushions only decelerate; use an external rod lock or SAIL/BSAI variant for load holding.
Airtac SID Series Double-Rod Cylinder SID125X100S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID125X100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID125X100S |
| Bore size | Ø125 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID125X100S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
The SAID125X100S 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 SID125X100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SID125X100S Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously with equal 5734 N force at 0.5 MPa, ensuring balanced material removal on both sides of a workpiece.
Anti-Rotation Transfer Unit
Uses the dual-rod architecture to prevent rotational drift when pushing heavy pallets between conveyor belts, maintaining precise linear tracking without external guides.
Symmetric Clamping Fixture
Applies equal clamping pressure from both ends of an assembly fixture, holding components securely while maintaining perfect center alignment during processing.
Replacing the Airtac SID Series Double-Rod Cylinder SID125X100S with the SAID125X100S
To replace the discontinued SID125X100S, install the direct replacement SAID125X100S, matching the 125 mm bore, 100 mm stroke, G1/2 port, and ISO 15552 mounting (Basic, FA, LB, TC). When sizing both ways, verify equal push/pull force is sufficient; if 5734 N at 0.5 MPa is too low, step up to a 160 mm bore, or drop to 100 mm if excess. Choose a double-rod design when you need anti-rotation stability or must drive two tools. The -S magnet enables position sensing. For strokes >=300 mm, ensure side-load alignment to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID125X100S
- ✓ 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 SID125X100S FAQ
Yes, the AirTAC SID125X100S is discontinued. The direct replacement is the SAID125X100S, offering the same ISO 15552 interface, 125 mm bore, 100 mm stroke, and G1/2 port. The SAI upgrade features an improved two-piece Y-shaped piston seal for longer life and lower start-up pressure.
Because it is a double-rod cylinder, force is equal both ways: 5734 N at 0.5 MPa, 8028 N at 0.7 MPa, and 10321 N at 0.9 MPa. Operating speed is 30-500 mm/s. Remember that air cushions only decelerate near stroke end; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
Related AirTAC SAI Cylinders
Request a Quote for the SAID125X100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID125X100S replacement — usually within 7-8 hours.