This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID125X160S, 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 SID125X160S
The AirTAC Airtac SID Series Double-Rod Cylinder SID125X160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 160mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID125X160S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke160 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAID125X160S
- 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 SID125X160S
The AirTAC SID125X160S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, meaning push and pull force are equal at 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. This SID model is discontinued and the direct replacement is the SAID125X160S, sharing the same 125mm bore, 160mm stroke, G1/2 port, and ISO 15552 mounting interface. The SAI upgrade uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because both faces use the rod-side area, the design resists rotation and allows the back rod to carry a sensor cam. The bore dictates a 32mm rod with an M27x2 thread, 40mm adjustable cushions, and a 30-500 mm/s speed range. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID125X160S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID125X160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID125X160S |
| Bore size | Ø125 mm |
| Stroke | 160 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 SAID125X160S 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 SAID125X160S 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 SID125X160S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×160 | 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 SID125X160S Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously from one piston, utilizing the equal both-ways force to ensure perfectly balanced cutting cycles.
Anti-Rotation Transfer Gate
Uses the dual-rod architecture to prevent mechanical twist during high-speed part diversion on a 30-500 mm/s packaging line.
External Cam Positioning
Leverages the rear extending rod to carry an external sensor cam, triggering legacy CS1-B/DS1-B switches for precise load placement.
Replacing the Airtac SID Series Double-Rod Cylinder SID125X160S with the SAID125X160S
To replace the discontinued SID125X160S, specify the direct replacement SAID125X160S, which reuses the exact ISO 15552 mounting interface (Basic, FA, LB, TC) without bracket changes. Size both ways by confirming the equal push/pull force of 5734 N @0.5 MPa is sufficient, or step to a neighbour bore. A double rod is right when you need anti-rotation stability or want to drive two tools from one piston. The -S magnet enables position sensing. For strokes >=300, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID125X160S
- ✓ 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 SID125X160S FAQ
Yes, the SID125X160S is discontinued. The direct replacement is the SAID125X160S, which matches the 125mm bore, 160mm stroke, G1/2 port, and ISO 15552 mounting. The SAI family also adds an upgraded piston seal and SAIL/BSAI lock variants.
Being double-rod, force is equal both ways: 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. The bore sets the air port to G1/2, the rod thread to M27x2, and adjustable cushion length to 40mm.
Related AirTAC SAI Cylinders
Request a Quote for the SAID125X160S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID125X160S replacement — usually within 7-8 hours.