This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID50X600, 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 SID50X600
The AirTAC Airtac SID Series Double-Rod Cylinder SID50X600 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 600mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID50X600, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke600 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID50X600
- 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 SID50X600
The AirTAC SID50X600 is a double-acting, double-rod ISO 15552 cylinder featuring a 50mm bore and 600mm stroke. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal at 825N @0.5MPa, 1154N @0.7MPa, and 1484N @0.9MPa. This model is discontinued; the direct replacement is the SAID50X600, matching the G1/4 port, M16x1.5 rod thread, and 30mm adjustable cushion. The SAI family uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Because the second rod can carry a sensor cam or drive two tools simultaneously while resisting rotation, double-rod designs offer superior stability. Note this SKU lacks a magnet (-S) and cannot take a magnetic switch. 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 SID50X600 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID50X600 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID50X600 |
| Bore size | Ø50 mm |
| Stroke | 600 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 SAID50X600 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 SAID50X600 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 SID50X600
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×600 | 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 SID50X600 Is Used
Dual-Station Transfer
Drives two opposing conveyor diverters simultaneously using the front and rear rods, ensuring perfectly synchronized part routing without external linkages.
Anti-Rotation Clamping
Applies equal clamping force in both directions on a machining fixture, using the double-rod geometry to prevent piston twist during heavy milling.
Replacing the Airtac SID Series Double-Rod Cylinder SID50X600 with the SAID50X600
To replace the discontinued SID50X600, install the direct replacement SAID50X600, reusing the existing ISO 15552 mounting interface (Basic, FA, LB, TC) without modifications. Size both ways by checking neighbor bores (40mm or 63mm) if you need to adjust the equal both-ways force. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. For the 600mm stroke, use external guides to prevent rod bending and side-load damage. This non-magnetic SKU cannot support sensors; if positioning feedback is required, select a -S magnet model. For load-holding on air loss, do not rely on the cushion; specify an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID50X600
- ✓ 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 SID50X600 FAQ
Yes, the SID50X600 is discontinued. The direct replacement is the SAID50X600, which matches the 50mm bore, 600mm stroke, G1/4 port, and ISO 15552 mounting interface. The SAI family also adds an upgraded piston seal for longer life.
Force is equal both ways at 825N @0.5MPa, 1154N @0.7MPa, and 1484N @0.9MPa. The fixed air port is G1/4, the rod thread is M16x1.5, and it features 30mm adjustable air cushions at each end. Operating pressure is 0.15-1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAID50X600
Send us the quantity and destination. We confirm price, stock and lead time on the SAID50X600 replacement — usually within 7-8 hours.