This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X25, 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 SID160X25
The AirTAC Airtac SID Series Double-Rod Cylinder SID160X25 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 SAID160X25, 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 → SAID160X25
- 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 SID160X25
The AirTAC SID160X25 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, ensuring push and pull force are equal at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. This SKU has no -S magnet and cannot take a sensor. It features a 40 mm rod, M36x2 thread, G3/4 port, and 50 mm adjustable cushions. This discontinued model is fully replaced by the SAID160X25 direct, which adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Because both faces use the rod-side area, the double-rod design prevents rod rotation and can drive two tools simultaneously. A plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end. For held loads, use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID160X25 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID160X25 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X25 |
| 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 SAID160X25 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 SAID160X25 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 SID160X25
| 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 SID160X25 Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously with equal 9425 N @0.5 MPa force, ensuring balanced material removal without rod rotation.
Anti-Rotation Transfer Gate
Uses the twin-rod architecture to shift a heavy conveyor divert gate smoothly, preventing binding and maintaining precise alignment.
Symmetric Pallet Stopper
Deploys a synchronized stop blade from both ends to halt pallets squarely, leveraging the equal push and pull force for stable deceleration.
Replacing the Airtac SID Series Double-Rod Cylinder SID160X25 with the SAID160X25
To replace the discontinued SID160X25, install the direct replacement SAID160X25, which matches the ISO 15552 mounting interface, 160 mm bore, 25 mm stroke, G3/4 port, and equal-both-ways force. When sizing both ways, verify your force needs against the 9425 N @0.5 MPa rating, stepping to neighbour bores if higher capacity is required. A double rod is right when you need anti-rotation, dual-tool driving, or equal push/pull. Reuse FA, LB, or TC mounts. As this SKU lacks the -S magnet, add external sensors if needed. For strokes >=300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID160X25
- ✓ 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 SID160X25 FAQ
Yes, the SID160X25 is discontinued. The direct replacement is the SAID160X25, sharing the same ISO 15552 interface, 160 mm bore, 25 mm stroke, G3/4 port, and mounting. The SAI upgrade uses a two Y-shaped one-way piston seal for longer life.
Force is equal both ways: 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. The bore is 160 mm with a G3/4 port, a 40 mm rod, M36x2 thread, and 50 mm cushions. It lacks a magnet for sensors.
Related AirTAC SAI Cylinders
Request a Quote for the SAID160X25
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X25 replacement — usually within 7-8 hours.