This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X400, 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 SID32X400
The AirTAC Airtac SID Series Double-Rod Cylinder SID32X400 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 400mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X400, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAID32X400
- 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 SID32X400
The AirTAC SID32X400 is a double-acting, double-rod ISO 15552 cylinder featuring a 32 mm bore and 400 mm stroke. Because a rod exits both ends, the piston uses the rod-side annular area on both faces, making push and pull force equal at 345 N @0.5 MPa. This legacy model is discontinued; the direct replacement is the SAID32X400, which retains the G1/8 port, M10x1.25 rod thread, and 27 mm cushions. The SAI upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Without a -S suffix, this SKU cannot take a magnetic switch. The cylinder operates at 0.15-1.0 MPa and -20 to +70 C. Note that air cushions only decelerate the piston near stroke end; they do not hold loads on air loss, so an external rod lock or SAIL/BSAI variant is required for held loads.
Airtac SID Series Double-Rod Cylinder SID32X400 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID32X400 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X400 |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAID32X400 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 SAID32X400 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 SID32X400
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SID32X400 Is Used
Synchronized Transfer Pusher
Drives two linked conveyor lanes simultaneously from one piston, using the equal both-ways force to push and retract parts evenly without racking.
External Cam Actuation
Uses the rear rod extension to trigger mechanical switches or external cams, operating independently of the front tooling stroke.
Replacing the Airtac SID Series Double-Rod Cylinder SID32X400 with the SAID32X400
To replace the discontinued SID32X400, install the SAID32X400 directly—it matches the ISO 15552 interface, 400 mm stroke, and equal both-ways force. When sizing, verify both push and pull requirements against the 345 N @0.5 MPa rating, stepping up to a 40 mm bore if higher force is needed. A double-rod design is right when you need anti-rotation stability or want to drive two tools from one piston. Mounting options include FA, LB, and TC brackets. Since this lacks the -S magnet, it cannot support sensors. For the 400 mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID32X400
- ✓ 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 SID32X400 FAQ
Yes, the SID32X400 is discontinued. The direct replacement is the SAID32X400. It shares the same ISO 15552 mounting interface, 32 mm bore, 400 mm stroke, G1/8 port, and equal both-ways force, while adding an upgraded two Y-shaped one-way piston seal.
Force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. Speed is 30-800 mm/s. It features a 12 mm rod, M10x1.25 thread, and 27 mm adjustable air cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID32X400
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X400 replacement — usually within 7-8 hours.