This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X50S, 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 SID160X50S
The AirTAC Airtac SID Series Double-Rod Cylinder SID160X50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 50mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID160X50S
- 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 SID160X50S
The AirTAC SID160X50S is a discontinued 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. It features a 40mm rod, M36x2 thread, 50mm adjustable cushion, G3/4 port, and a built-in magnet for legacy CS1-B/DS1-B switches. The direct replacement is the SAID160X50S, retaining the same interface, bore, stroke, and mounting.
The SAI replacement upgrades to a two Y-shaped one-way piston seal for low start-up pressure and long life. A plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID160X50S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID160X50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X50S |
| Bore size | Ø160 mm |
| Stroke | 50 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 SAID160X50S 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 SAID160X50S 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 SID160X50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×50 | 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 SID160X50S Is Used
Equal-Force Web Guiding
Drives opposing nip rollers in film or foil lines where identical push and pull thrust prevents tracking skew.
Dual-End Transfer Pusher
Simultaneously moves two workpieces from a central mount using both extending rods to carry separate tooling.
Anti-Rotation Lift Station
Lifts heavy jigs using the twin-rod geometry to resist torsional twist without external linear bearings.
Replacing the Airtac SID Series Double-Rod Cylinder SID160X50S with the SAID160X50S
Replace the discontinued SID160X50S directly with the SAID160X50S, which reuses the exact ISO 15552 mounting interface (Basic, FA, LB, TC) and G3/4 port. Size both ways by checking neighbouring bores (125mm or 200mm) while verifying equal force. Choose a double-rod cylinder when you need anti-rotation stability or when the back rod carries a sensor cam. The -S suffix confirms the piston magnet is present for switches. For this 50mm stroke, side-load is minimal, but note that strokes >=300mm require careful guide alignment to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID160X50S
- ✓ 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 SID160X50S FAQ
Yes, the SID160X50S is discontinued. The direct replacement is the SAID160X50S, offering the same ISO 15552 interface, 160mm bore, 50mm stroke, G3/4 port, and mounting hardware.
Force is equal both ways at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-500 mm/s, and it uses a G3/4 port with a 50mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAID160X50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X50S replacement — usually within 7-8 hours.