This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X40S, 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 SID32X40S
The AirTAC Airtac SID Series Double-Rod Cylinder SID32X40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 40mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke40 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAID32X40S
- 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 SID32X40S
The AirTAC SID32X40S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force are equal at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. This 32 mm bore model features a 12 mm piston rod, M10x1.25 rod thread, G1/8 port, and 27 mm adjustable air cushions. The SID32X40S is discontinued; its direct replacement is the SAID32X40S, sharing the same interface, stroke, and mounting.
The SAI replacement upgrades the piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches. Double-rod benefits include anti-rotation stability and using the back rod to drive a second tool. Note that air cushions only decelerate; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID32X40S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID32X40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X40S |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID32X40S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAID32X40S 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 SID32X40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 SID32X40S Is Used
Synchronized Dual-Tool Drive
Uses both extending rods to operate two separate mechanisms simultaneously with equal 345 N force, ensuring perfectly timed part transfer without adding a second cylinder.
Anti-Rotation Gripper Slide
The dual-rod geometry prevents piston rotation during short 40 mm clamping moves, maintaining precise angular alignment for delicate electronics handling.
Replacing the Airtac SID Series Double-Rod Cylinder SID32X40S with the SAID32X40S
To replace the discontinued SID32X40S, specify the SAID32X40S, which provides a direct swap with identical ISO 15552 mounting, G1/8 port, and 40 mm stroke. When sizing, verify the equal both ways force fits your application; if higher force is needed, step up to the neighboring 40 mm bore (528 N @0.5 MPa), or step down to a smaller bore if 345 N is excessive. A double-rod design is right when you need anti-rotation resistance or require a back rod to mount a sensor cam. Mounting options include Basic, FA, LB, and TC. The -S suffix ensures a piston magnet is present for switch sensing. For this 40 mm stroke, side-load concerns are minimal, but for strokes >=300 mm, guide rails are recommended to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID32X40S
- ✓ 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 SID32X40S FAQ
Yes, the SID32X40S is discontinued. The direct replacement is the SAID32X40S. It shares the same ISO 15552 interface, 32 mm bore, 40 mm stroke, G1/8 port, and equal both ways force, but features an upgraded Y-shaped piston seal for longer life.
Being a double-rod cylinder, the push and pull force are equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. It uses a G1/8 air port, offers a speed range of 30-800 mm/s, and features 27 mm adjustable cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID32X40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X40S replacement — usually within 7-8 hours.