This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X125S, 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 SID160X125S
The AirTAC Airtac SID Series Double-Rod Cylinder SID160X125S 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 SAID160X125S, 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 → SAID160X125S
- 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 SID160X125S
The AirTAC SID160X125S is a discontinued double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal at 9425 N @0.5 MPa. The direct replacement is the SAID160X125S, which matches the 160mm bore, 125mm stroke, G3/4 port, and mounting interface. The SAI upgrade uses an improved two-piece Y-shaped piston seal for lower start-up pressure and longer life.
Because both faces use the rod-side area, the bore delivers equal force both ways (13194 N @0.7 MPa, 16964 N @0.9 MPa). The dual rods prevent rotation and allow driving two tools or mounting a sensor cam on the back rod. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. Note: air cushions only decelerate; use an external rod lock or SAIL/BSAI variant for load holding.
Airtac SID Series Double-Rod Cylinder SID160X125S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID160X125S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X125S |
| 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 SAID160X125S 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 SAID160X125S 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 SID160X125S
| 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 SID160X125S Is Used
Twin-Tool Machining Station
Drives opposing machining heads simultaneously from one central body, utilizing the equal both-ways force to ensure perfectly synchronized clamping and milling operations.
Anti-Rotation Divert Gate
Actuates a heavy sorting flap on a packaging line where the twin rods prevent torsional twist, maintaining precise gate alignment without external linear bearings.
Replacing the Airtac SID Series Double-Rod Cylinder SID160X125S with the SAID160X125S
To replace the discontinued SID160X125S, install the SAID160X125S directly into your existing ISO 15552 mounting hardware (Basic, FA, LB, TC, FTC, TCM1, TCM2). Size both directions by checking equal force: if 9425 N @0.5 MPa is excessive, step down to the 125mm bore, or if more is needed, move up to the 200mm bore. A double-rod design is the right choice when you need strict anti-rotation, want to drive two mechanisms in opposite directions, or need a back rod to carry a sensor cam. Keep the -S magnet option if using CS1-B/DS1-B sensors. For this 125mm stroke, side-load is minimal, but for any stroke >=300mm, ensure guide rails to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID160X125S
- ✓ 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 SID160X125S FAQ
Yes, the SID160X125S is discontinued. The direct replacement is the SAID160X125S, which shares the identical ISO 15552 mounting interface, 160mm bore, 125mm stroke, G3/4 port, and equal both-ways force. The SAI family also adds upgraded piston seals and SAIL/BSAI lock variants.
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. The fluid port is G3/4, the rod is Ø40mm with an M36x2 thread, adjustable cushion is 50mm, and speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID160X125S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X125S replacement — usually within 7-8 hours.