This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X40-30, 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 40mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X40-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke40 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X40-30
- 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30
The AirTAC SIJ100X40-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 10-40 mm window from the 40 mm nominal maximum. The direct replacement is the SAIJ100X40-30, sharing the same interface, force, and adjust window.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Note this SKU lacks a -S magnet and cannot take a switch. The stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X40-30 |
| Bore size | Ø100 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ100X40-30 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAIJ100X40-30 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30 Is Used
Press Fit Tuning
Allows operators to dial in a 10-40 mm extend contact distance on-site for inserting bearings without over-travel.
Variable Diverter Gate
Adjusts the extend stop up to 30 mm to re-route different package sizes on a packaging line without swapping cylinders.
Adjustable End Stop
Sets a precise physical end position for pallet positioning, fine-tuning the stroke window as pallet dimensions vary.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30 with the SAIJ100X40-30
To replace the SIJ100X40-30, order the direct replacement SAIJ100X40-30, keeping the same 40 mm stroke and 30 mm adjust window. Choose FA, LB, or TC mounts to reuse your existing ISO 15552 interface. Because this SKU has no -S magnet, it cannot accept a legacy CS1-B/DS1-B sensor; add external sensing if required. For any stroke >=300 mm, verify side-load guidance. The external stop trims extend travel but provides no load-holding on air loss—specify a SAIL or BSAI lock variant if needed.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X40-30
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X40-30 FAQ
Yes, the SIJ100X40-30 is discontinued. The direct replacement is the SAIJ100X40-30, which matches the ISO 15552 interface, 100 mm bore, 40 mm stroke, 30 mm adjust window, and G1/2 port.
The external stop screw trims the extend stroke by up to 30 mm on-site, yielding a usable 10-40 mm window.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X40-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X40-30 replacement — usually within 7-8 hours.