This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID40X160, 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 SID40X160
The AirTAC Airtac SID Series Double-Rod Cylinder SID40X160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 160mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID40X160, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke160 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAID40X160
- 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 SID40X160
The AirTAC SID40X160 is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 528 N @0.5 MPa, 739 N @0.7 MPa, and 950 N @0.9 MPa. It features a 40mm bore, G1/4 port, M12x1.25 rod thread, and 27mm adjustable cushions. The direct replacement is the SAID40X160, matching the interface, bore, stroke, and mounting.
Because the rod exits both ends, it prevents piston rotation and can drive two tools simultaneously. The SAI upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure and longer life. This non-magnetic SKU cannot take a sensor.
Airtac SID Series Double-Rod Cylinder SID40X160 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID40X160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID40X160 |
| Bore size | Ø40 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID40X160 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAID40X160 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 SID40X160
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | 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 SID40X160 Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously from one piston, ensuring perfectly synchronized clamping and milling with equal push and pull force.
Anti-Rotation Transfer Gate
Uses the dual-rod architecture to prevent mechanical twist during high-speed package deflection on a conveyor line, maintaining precise alignment.
Replacing the Airtac SID Series Double-Rod Cylinder SID40X160 with the SAID40X160
To replace the discontinued SID40X160, install the direct replacement SAID40X160 which retains the exact ISO 15552 mounting interface, G1/4 port, and equal both-ways force. Size both directions by checking neighbor bores (32mm yields 345 N, 50mm yields 825 N @0.5 MPa) against your load. A double rod is right when you need anti-rotation or multi-tool drive. Reuse FA, LB, or TC mounts. This SKU lacks the -S magnet, so no sensor can be fitted. For stroke lengths >=300mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID40X160
- ✓ 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 SID40X160 FAQ
Yes, the SID40X160 is discontinued. The direct replacement is the SAID40X160. It matches the ISO 15552 interface, 40mm bore, 160mm stroke, G1/4 port, and mounting hardware. The SAI family also adds an upgraded two Y-shaped one-way piston seal for longer life.
Force is equal both ways at 528 N @0.5 MPa, 739 N @0.7 MPa, and 950 N @0.9 MPa. Speed is 30-800 mm/s. A plain cylinder does not hold loads on air loss; the 27mm cushion only decelerates near stroke end. For held loads, use an external rod lock or the SAIL/BSAI lock variant.
Related AirTAC SAI Cylinders
Request a Quote for the SAID40X160
Send us the quantity and destination. We confirm price, stock and lead time on the SAID40X160 replacement — usually within 7-8 hours.