This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X85-40S, 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 SIJ100X85-40S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X85-40S 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 SAIJ100X85-40S, 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 → SAIJ100X85-40S
- 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 SIJ100X85-40S
The AirTAC SIJ100X85-40S 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 40 mm on-site, giving a usable 45-85 mm extension out of the 85 mm nominal maximum.
The direct replacement is the SAIJ100X85-40S, matching the interface, force, 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 the stop screw sets end position but is not a load lock; use SAIL or BSAI for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X85-40S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X85-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X85-40S |
| 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 SAIJ100X85-40S 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 SAIJ100X85-40S 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 SIJ100X85-40S
| 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 SIJ100X85-40S Is Used
Press Fit Tuning
Allows operators to dial in the exact 45-85 mm extend position for seating bearings without swapping cylinders.
Variable Diverter Gate
Adjusts the extend stop on-site to accommodate different package widths on a sorting line.
Carton Forming Stop
Sets precise end positions for varying carton depths, using the 40 mm trim to adapt quickly.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X85-40S with the SAIJ100X85-40S
To replace the discontinued SIJ100X85-40S, order the direct replacement SAIJ100X85-40S, which preserves the 85 mm maximum stroke and 40 mm on-site adjust window. Choose the 40 mm adjust window if your end-position tuning falls within 45-85 mm; for larger trims, select a longer nominal stroke. Mounting interfaces (FA, LB, TC) reuse directly. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). For strokes at or above 300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X85-40S
- ✓ 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 SIJ100X85-40S FAQ
Yes, the SIJ100X85-40S is discontinued. The direct replacement is the SAIJ100X85-40S. It shares the same ISO 15552 interface, 100 mm bore, 85 mm stroke, 40 mm adjust window, G1/2 port, and mounting options, but features an upgraded two Y-shaped one-way piston seal.
It has a 100 mm bore, 25 mm rod, M20x1.5 thread, G1/2 port, and 36 mm cushions. The adjust window is 40 mm (usable extend 45-85 mm). Speed is 30-800 mm/s. The stop screw sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X85-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X85-40S replacement — usually within 7-8 hours.