This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X800-20, 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 SIJ100X800-20
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X800-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 800mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X800-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X800-20
- 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 SIJ100X800-20
The AirTAC SIJ100X800-20 is a double-acting, double-rod ISO 15552 adjustable-stroke cylinder with a 100 mm bore and 800 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable extend range of 780-800 mm. This stop sets the end position but is not a load lock. The 100 mm bore features a 25 mm rod, M20x1.5 thread, G1/2 port, 36 mm adjustable cushions, and a speed range of 30-800 mm/s.
This SIJ model is discontinued; the direct replacement is the SAIJ100X800-20, matching the ISO 15552 interface, bore, stroke, force, port, and mounting. The SAIJ family 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. On the 800 mm stroke, use external guides to prevent rod bending. A plain cylinder drifts on air loss; for held loads use SAIL or BSAI.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X800-20 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X800-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X800-20 |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAIJ100X800-20 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 SAIJ100X800-20 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 SIJ100X800-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SIJ100X800-20 Is Used
Diverting Gate Adjustment
Tuning a pneumatic diverting arm on a conveyor line where product size varies, using the 20 mm on-site stroke trim to set the exact extend position without re-mounting the cylinder.
Multi-Part Forming Stop
Acting as an external stop in a forming press handling slightly different blank thicknesses, adjusting the 780-800 mm extend endpoint on-site to accommodate tooling variations.
Variable-Depth Palletizing
Driving a palletizing pusher that handles varied pallet depths, using the adjustable stop screw to fine-tune the extend stroke limits precisely at the machine frame.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X800-20 with the SAIJ100X800-20
To replace the discontinued SIJ100X800-20, order the direct replacement SAIJ100X800-20, keeping the 20 mm adjust window (780-800 mm extend) and G1/2 port. Reuse existing FA, LB, or TC ISO 15552 mounts. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; add external sensing if required. At 800 mm stroke, support the load with external guides to minimize side-load and rod-bending stress. The stop screw only sets end position; it is not a lock, so use an external rod lock or pilot-operated check valve for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X800-20
- ✓ 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 SIJ100X800-20 FAQ
Yes, the AirTAC SIJ100X800-20 is discontinued. The direct replacement is the SAIJ100X800-20. It shares the same ISO 15552 interface, 100 mm bore, 800 mm stroke, 20 mm adjust window, G1/2 port, and mounting, but upgrades the piston seal to two Y-shaped one-way elements for longer life.
The external stop screw provides a 20 mm adjust window, allowing you to trim the extend stroke from the 800 mm maximum down to 780 mm on-site. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X800-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X800-20 replacement — usually within 7-8 hours.