This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X25S, 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 SID160X25S
The AirTAC Airtac SID Series Double-Rod Cylinder SID160X25S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 25mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X25S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke25 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID160X25S
- 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 SID160X25S
The AirTAC SID160X25S is a discontinued double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. This geometry means both faces use the rod-side area, making push and pull force equal at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. It features a 160mm bore, 40mm rod, M36x2 thread, 50mm adjustable cushions, G3/4 port, and a 30-500 mm/s speed range. The direct replacement is the SAID160X25S, sharing the same mounting interface and force.
The SAI upgrade uses an upgraded two Y-shaped one-way piston seal for low start-up pressure and long life. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder drifts on air loss; cushions only decelerate. For held loads use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID160X25S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID160X25S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X25S |
| Bore size | Ø160 mm |
| Stroke | 25 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 SAID160X25S 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 SAID160X25S 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 SID160X25S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×25 | 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 SID160X25S Is Used
Twin-Tool Machining Station
Drives two opposing machining heads from one piston, utilizing the equal both-ways 13194 N @0.7 MPa force to push and pull identical operations simultaneously.
Anti-Rotation Transfer Gate
The dual exiting rods prevent torsional twist during heavy lateral transfers, maintaining precise 160mm bore alignment without binding.
Symmetrical Pallet Stopper
Uses the back rod to carry a sensor cam while the front rod acts as a 5655 N safe-load stop, keeping feedback and actuation on one axis.
Replacing the Airtac SID Series Double-Rod Cylinder SID160X25S with the SAID160X25S
To replace the discontinued SID160X25S, specify the SAID160X25S; it is a direct retaining the ISO 15552 interface, G3/4 port, and equal both-ways force. Size both directions by checking neighboring bores if you need less force, as the 160mm bore yields 9425 N @0.5 MPa equally. A double rod is right when you need anti-rotation stability or want to drive two tools from one piston. Reuse FA, LB, or TC mounts. The -S magnet supports legacy CS1-B/DS1-B sensors. Since the 25mm stroke is under 300mm, side-load bending moment is minimal, but always verify guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID160X25S
- ✓ 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 SID160X25S FAQ
Yes, the SID160X25S is discontinued. The direct replacement is the SAID160X25S. It shares the same ISO 15552 mounting interface, 160mm bore, 25mm stroke, G3/4 port, and equal both-ways force, but adds an upgraded piston seal.
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 air port is G3/4, the rod is 40mm with an M36x2 thread, and speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID160X25S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X25S replacement — usually within 7-8 hours.