This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X125, 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 SID160X125
The AirTAC Airtac SID Series Double-Rod Cylinder SID160X125 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 125mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X125, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID160X125
- 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 SID160X125
The AirTAC SID160X125 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force is equal both ways at 9425 N @0.5 MPa. This bore features a 40 mm rod, M36x2 thread, 50 mm adjustable cushions, and a fixed G3/4 air port. The SID160X125 is discontinued; its direct replacement is the SAID160X125, matching the stroke, force, and mounting interface.
The SAI upgrade introduces a two-piece Y-shaped one-way piston seal for lower start-up pressure and longer life. Without a -S suffix this SKU has no magnet and cannot take a sensor. Note that air cushions only decelerate; for load holding on air loss, use an external rod lock or the SAIL/BSAI lock variants.
Airtac SID Series Double-Rod Cylinder SID160X125 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID160X125 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X125 |
| Bore size | Ø160 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID160X125 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAID160X125 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 SID160X125
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | 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 SID160X125 Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously from one piston, utilizing the equal both-ways force to maintain perfectly synchronized cutting cycles.
Anti-Rotation Transfer Unit
Moves a heavy workpiece down a packaging line without rotational drift, relying on the rigid double-rod construction to resist torsional side loads.
External Cam Positioning
Uses the extended rear rod as a mechanical cam to trigger external limit valves, operating without internal magnetic sensors while handling 480 kg vertical loads.
Replacing the Airtac SID Series Double-Rod Cylinder SID160X125 with the SAID160X125
To replace the discontinued SID160X125, install the SAID160X125 directly—it preserves the ISO 15552 mounting interface, G3/4 port, and equal both-ways force (9425 N @0.5 MPa, 13194 N @0.7, 16964 N @0.9). Choose a double-rod configuration when you need anti-rotation stability or must drive two tools from one piston. Reuse existing FA, LB, or TC mounts. As this SKU lacks the -S magnet, it cannot support magnetic sensing. For this 125 mm stroke, side-load is minimal, but for strokes >=300 mm ensure guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID160X125
- ✓ 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 SID160X125 FAQ
Yes, the SID160X125 is discontinued. The direct replacement is the SAID160X125, which shares the same ISO 15552 interface, 125 mm stroke, G3/4 port, and mounting hardware. The SAI family also adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure.
Because it is a double-rod cylinder, force is equal both ways: 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. Operating speed is 30-500 mm/s. It uses a G3/4 port and 50 mm adjustable cushions. Note that cushions only decelerate; use an external rod lock or SAIL/BSAI variant for load holding.
Related AirTAC SAI Cylinders
Request a Quote for the SAID160X125
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X125 replacement — usually within 7-8 hours.