This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X85-30, 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 SIJ100X85-30
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X85-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 85mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X85-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke85 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X85-30
- 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 SIJ100X85-30
The AirTAC SIJ100X85-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 100 mm bore and 85 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable end position of 55-85 mm. The stop sets the end position but is not a load lock.
As SIJ is end-of-life, the direct replacement is the SAIJ100X85-30, retaining the same interface, force, port, and mounting. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. This SKU lacks a -S magnet and cannot take a switch.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X85-30 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X85-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X85-30 |
| Bore size | Ø100 mm |
| Stroke | 85 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 SAIJ100X85-30 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 SAIJ100X85-30 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 SIJ100X85-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×85 | 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 SIJ100X85-30 Is Used
Press Fit Tuning
Allows on-site extend stroke adjustment up to 30 mm to dial in exact press-fit depths for varying component tolerances without changing the cylinder.
Variable Height Sealing
Trim the 85 mm extend stroke on packaging lines to accommodate different container heights, ensuring consistent sealing pressure.
Adjustable Diverter Stop
Sets precise end positions for product diverters, allowing 30 mm of field adjustment to handle changing package sizes on the fly.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X85-30 with the SAIJ100X85-30
To replace the discontinued SIJ100X85-30, order the direct replacement SAIJ100X85-30, which matches the 100 mm bore, 85 mm stroke, 30 mm adjust window, G1/2 port, and ISO 15552 mounting. Choose the 30 mm adjust window if your end position needs on-site tuning between 55 and 85 mm. FA, LB, and TC mountings reuse standard ISO 15552 interface dimensions. Because this SKU has no -S magnet, it cannot accept a sensor. For any stroke over 300 mm, carefully manage side-load to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X85-30
- ✓ 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 SIJ100X85-30 FAQ
Yes, the AirTAC SIJ100X85-30 is discontinued. The direct replacement is the SAIJ100X85-30. It shares the identical ISO 15552 interface, 100 mm bore, 85 mm stroke, 30 mm adjust window, and G1/2 port. The SAIJ family also uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw provides a 30 mm adjust window, allowing you to shorten the 85 mm extend stroke down to 55 mm on-site. The stop sets the end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X85-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X85-30 replacement — usually within 7-8 hours.