This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID40X600S, 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 SID40X600S
The AirTAC Airtac SID Series Double-Rod Cylinder SID40X600S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 600mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID40X600S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke600 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAID40X600S
- 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 SID40X600S
The AirTAC SID40X600S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. This configuration means both faces use the rod-side area, making push and pull force equal at 528 N @0.5 MPa, 739 N @0.7 MPa, and 950 N @0.9 MPa. The bore is 40 mm, the port is G1/4, and the rod-end thread is M12x1.25. This SID model is discontinued; the direct replacement is the SAID40X600S, which reuses the same ISO 15552 mounting interface and adds an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches (the SAI replacement uses current AirTAC switches). For this 600 mm stroke, external guides are recommended to prevent rod bending under side loads. A plain cylinder does not hold loads on air loss; the 27 mm adjustable air cushions only decelerate near stroke ends, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID40X600S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID40X600S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID40X600S |
| Bore size | Ø40 mm |
| Stroke | 600 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 SAID40X600S 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 SAID40X600S 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 SID40X600S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | 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 SID40X600S Is Used
Dual-Tool Drive Station
Simultaneously drives two opposing tools from a single piston, utilizing the equal both-ways force to push and pull identical 27 kg vertical loads safely.
Anti-Rotation Transfer
Transfers parts along a 600 mm stroke with high torsional resistance, using the second rod as a stable backing guide to prevent chassis rotation.
Symmetric Clamping Jig
Centers workpieces symmetrically by clamping from both ends, relying on the 528 N @0.5 MPa equal force and external guides to prevent rod bending.
Replacing the Airtac SID Series Double-Rod Cylinder SID40X600S with the SAID40X600S
To replace the discontinued SID40X600S, specify the SAID40X600S, which matches the 40 mm bore, 600 mm stroke, G1/4 port, and ISO 15552 mounting dimensions (Basic, FA, LB, TC). Because force is equal both ways, you can size it bidirectionally: if 528 N @0.5 MPa is insufficient, step up to the 50 mm bore (825 N), or drop to the 32 mm bore (345 N) if lower force is acceptable. A double-rod design is the right choice when you need anti-rotation stability, want to mount a sensor cam on the back rod, or need to drive two tools in opposite directions simultaneously. For the 600 mm stroke, ensure external guides support the rod to prevent bending under side loads. The -S magnet supports legacy CS1-B/DS1-B switches, while the SAI replacement uses current AirTAC switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID40X600S
- ✓ 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 SID40X600S FAQ
Yes, the SID40X600S is discontinued. The direct replacement is the SAID40X600S, which shares the same ISO 15552 mounting interface, 40 mm bore, 600 mm stroke, G1/4 port, and equal both-ways force, but adds an upgraded piston seal.
Force is equal both ways at 528 N @0.5 MPa, 739 N @0.7 MPa, and 950 N @0.9 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-800 mm/s, and the G1/4 port cylinder features 27 mm adjustable air cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID40X600S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID40X600S replacement — usually within 7-8 hours.