This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID40X160S, 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 SID40X160S
The AirTAC Airtac SID Series Double-Rod Cylinder SID40X160S 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 SAID40X160S, 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 → SAID40X160S
- 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 SID40X160S
The AirTAC SID40X160S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, ensuring push and pull force is equal at 528 N @0.5 MPa, 739 N @0.7 MPa and 950 N @0.9 MPa. The bore dictates a G1/4 air port, M12x1.25 rod thread, 27 mm cushions and a 30-800 mm/s speed range. This discontinued model is fully replaced by the SAID40X160S, which adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The SAID40X160S direct keeps the exact ISO 15552 mounting interface, bore, stroke and force. The twin rods provide anti-rotation stability and allow driving two tools or mounting a sensor cam on the back rod. Note that air cushions only decelerate near stroke end; a plain cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID40X160S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID40X160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID40X160S |
| 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 SAID40X160S 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 SAID40X160S 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 SID40X160S
| 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 SID40X160S Is Used
Twin-Tool Transfer
Simultaneously drives two opposing grippers to transfer parts between stations, utilising the equal push and pull force to maintain synchronous travel.
Anti-Rotation Lift
Lifts a 27 kg vertical payload using the dual rods to prevent yaw and twist without requiring an external linear guide.
Dual-Side Sensing
Uses the front rod for the primary work stroke while the rear exposed rod carries a CS1-B/DS1-B sensor cam for external position confirmation.
Replacing the Airtac SID Series Double-Rod Cylinder SID40X160S with the SAID40X160S
To replace the discontinued SID40X160S, install the direct replacement SAID40X160S, which preserves the ISO 15552 mounting interface, G1/4 port and M12x1.25 rod thread. Because force is equal both ways, size both push and pull directions identically; if 950 N @0.9 MPa is insufficient, step up to the 50 mm bore, or drop to 32 mm if 528 N @0.5 MPa is excessive. A double-rod design is right when you need anti-rotation resistance or must drive two tools simultaneously. Reuse FA, LB or TC mounts, and specify the -S magnet for CS1-B/DS1-B switches. For this 160 mm stroke side-load is minimal, but for strokes >=300 mm ensure guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID40X160S
- ✓ 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 SID40X160S FAQ
Yes, the SID40X160S is discontinued. The direct replacement is the SAID40X160S, which matches the ISO 15552 interface, 40 mm bore, 160 mm stroke, G1/4 port and mounting dimensions, while upgrading the piston seal.
Being double-rod, force is equal both ways: 528 N @0.5 MPa, 739 N @0.7 MPa and 950 N @0.9 MPa. It operates at 30-800 mm/s with a 27 mm adjustable cushion at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID40X160S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID40X160S replacement — usually within 7-8 hours.