This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X75-20TC, 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 SIJ100X75-20TC
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X75-20TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 75mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X75-20TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke75 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X75-20TC
- 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 SIJ100X75-20TC
The AirTAC SIJ100X75-20TC 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 20 mm on-site, giving a usable 55-75 mm extension out of the 75 mm nominal maximum. The stop sets the end position but is not a load lock.
As SIJ is end-of-life, the direct replacement is the SAIJ100X75-20TC, retaining the same interface, force, and TC mount. The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a -S magnet and cannot take a switch.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X75-20TC Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X75-20TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X75-20TC |
| Bore size | Ø100 mm |
| Stroke | 75 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 SAIJ100X75-20TC 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 SAIJ100X75-20TC 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 SIJ100X75-20TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SIJ100X75-20TC Is Used
Press Fit Tuning
Allows operators to dial in the exact 55-75 mm extension on-site for inserting fittings without changing the cylinder body.
Variable Diverter Arm
Adjusts the extend stop by up to 20 mm to route different package sizes on a line without repositioning the ISO 15552 mount.
Adjustable End Stop
Sets a precise physical end position for pallet contact, trimming the stroke on-site to accommodate varying load depths.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X75-20TC with the SAIJ100X75-20TC
To replace the discontinued SIJ100X75-20TC, order the direct replacement SAIJ100X75-20TC, which preserves the 75 mm stroke, 20 mm adjust window, G1/2 port, and TC mounting interface. Choose the 20 mm adjust window if you need precise 55-75 mm extend tuning. The TC mount allows ISO 15552 interchange via mounting-interface dimensions. Because this SKU has no -S suffix, it cannot accept a magnetic switch. For stroke lengths >=300 mm, verify your side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X75-20TC
- ✓ 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 SIJ100X75-20TC FAQ
Yes, the SIJ100X75-20TC is discontinued. The direct replacement is the SAIJ100X75-20TC, which shares the same 100 mm bore, 75 mm stroke, 20 mm adjust window, G1/2 port, and TC mounting.
The external stop screw provides a 20 mm adjust window, allowing you to trim the extend stroke from 75 mm down to 55 mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X75-20TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X75-20TC replacement — usually within 7-8 hours.