This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID50X160, 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 SID50X160
The AirTAC Airtac SID Series Double-Rod Cylinder SID50X160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 160mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID50X160, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke160 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID50X160
- 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 SID50X160
The AirTAC SID50X160 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Because both faces use the rod-side area, push and pull force are equal at 825 N @0.5 MPa, 1154 N @0.7 MPa, and 1484 N @0.9 MPa. This model is discontinued; the direct replacement is the SAID50X160, matching the 50mm bore, 160mm stroke, G1/4 port, and mounting interface. The SAI upgrade uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
With a 20mm rod, M16x1.5 thread, and 30mm adjustable cushions at each end, it operates at 30-800 mm/s. This non-magnet SKU cannot take a sensor. The dual-rod design prevents rotation and lets the back rod drive a second tool. 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 SID50X160 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID50X160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID50X160 |
| Bore size | Ø50 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID50X160 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAID50X160 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 SID50X160
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | 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 SID50X160 Is Used
Twin-Tool Drive
Use the extended rear rod to operate a secondary mechanism or tool simultaneously, saving space and halving cycle times.
Anti-Rotation Lift
The dual-rod geometry prevents piston twist during vertical elevation, ensuring precise alignment for 42kg vertical lifts.
Symmetrical Transfer
Push and pull workpieces with identical 825N force at 0.5MPa, ideal for shuttle systems requiring balanced momentum.
Replacing the Airtac SID Series Double-Rod Cylinder SID50X160 with the SAID50X160
To replace the discontinued SID50X160, use the SAID50X160 directly—it preserves the ISO 15552 mounting interface, 160mm stroke, and equal-both-ways force. Size both directions by checking the 825 N @0.5 MPa rating; if more force is needed, step up to the 63mm bore (1402 N @0.5 MPa), or drop to the 40mm bore (528 N) for lighter loads. A double rod is right when you need anti-rotation or want the back rod to carry a sensor cam. Reuse FA, LB, or TC mounts. This SKU lacks the -S magnet and cannot take a switch. For strokes >=300mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID50X160
- ✓ 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 SID50X160 FAQ
Yes, the SID50X160 is discontinued. The direct replacement is the SAID50X160, which matches the ISO 15552 interface, 50mm bore, 160mm stroke, G1/4 port, and equal-both-ways force.
Force is equal both ways: 825N @0.5MPa, 1154N @0.7MPa, and 1484N @0.9MPa. The bore dictates a G1/4 air port, a 20mm rod, M16x1.5 thread, and 30mm cushions. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID50X160
Send us the quantity and destination. We confirm price, stock and lead time on the SAID50X160 replacement — usually within 7-8 hours.