This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID40X100, 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 SID40X100
The AirTAC Airtac SID Series Double-Rod Cylinder SID40X100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 100mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID40X100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke100 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAID40X100
- 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 SID40X100
The AirTAC SID40X100 is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force are equal at 528N @0.5MPa, 739N @0.7MPa, and 950N @0.9MPa. It features a 40mm bore, 100mm stroke, 16mm rod, M12x1.25 thread, G1/4 port, and 27mm cushions. The direct replacement is the SAID40X100, which adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Because both faces use the rod-side area, this design provides anti-rotation stability and lets the back rod carry a sensor cam or drive a second tool. This non-magnet SKU cannot take a switch. 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 SID40X100 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID40X100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID40X100 |
| Bore size | Ø40 mm |
| Stroke | 100 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 SAID40X100 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 SAID40X100 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 SID40X100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 SID40X100 Is Used
Transfer Pushers
Equal both-ways force drives parts across a conveyor belt on the extend stroke while reliably retracting the tooling without force dropping off.
Dual-End Machining
The exiting back rod can drive a secondary machining head or clamp, performing two synchronized operations from one ISO 15552 cylinder body.
Anti-Rotation Handling
Two rods prevent piston rotation during vertical or horizontal part placement, ensuring precise angular orientation for delicate assembly tasks.
Replacing the Airtac SID Series Double-Rod Cylinder SID40X100 with the SAID40X100
To replace the discontinued SID40X100, specify the SAID40X100 direct: it matches the 40mm bore, 100mm stroke, G1/4 port, and ISO 15552 mounting (Basic, FA, LB, TC). Size both ways using the equal push/pull force (528N @0.5MPa); if more force is needed, step up to the 50mm bore, or drop to 32mm for lighter loads. Choose a double-rod cylinder when you need anti-rotation stability or dual-end tooling. Since this is a non-S model, it cannot accept magnetic switches. For this 100mm stroke, side-load is minimal, but for strokes >=300mm ensure guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID40X100
- ✓ 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 SID40X100 FAQ
Yes, the SID40X100 is discontinued. The direct replacement is the SAID40X100. It shares the same ISO 15552 mounting interface, 40mm bore, 100mm stroke, G1/4 port, and equal both-ways force, but upgrades to a two Y-shaped one-way piston seal for longer life.
Force is equal both ways (push and pull) because both faces use the rod-side area: 528N @0.5MPa, 739N @0.7MPa, and 950N @0.9MPa. Speed is 30-800mm/s. It uses a G1/4 port, 16mm rod, and 27mm adjustable air cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID40X100
Send us the quantity and destination. We confirm price, stock and lead time on the SAID40X100 replacement — usually within 7-8 hours.