This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X175-75S, 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X175-75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X175-75S
- 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S
The AirTAC SIJ63X175-75S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. Its external stop screw lets you trim the extend stroke by up to 75 mm on-site, giving a usable 100-175 mm forward travel out of the 175 mm nominal maximum.
This SIJ model is replaced direct by the SAIJ63X175-75S, retaining the exact ISO 15552 mounting interface, bore, and force. The SAIJ upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note the stop screw sets end position only; it is not a load lock.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X175-75S |
| Bore size | Ø63 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ63X175-75S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAIJ63X175-75S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×175 | 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S Is Used
Variable Depth Drilling
Adjusts the extend stroke on-site to match different material thicknesses without swapping the entire cylinder.
Variable Length Sorting Diverter
Tunes the pusher extension distance on the line to handle changing package sizes dynamically.
Adjustable Height Pallet Stop
Trims the forward stop position precisely to accommodate varying pallet load heights at a packing station.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S with the SAIJ63X175-75S
To replace the discontinued SIJ63X175-75S, order the direct replacement SAIJ63X175-75S, keeping the 175 mm nominal stroke, 75 mm adjust window, and -S magnet for legacy CS1-B/DS1-B switches. Choose the 75 mm adjust window when you need on-site tuning of the 100-175 mm extend travel. Mounting reuses ISO 15552 FA, LB, or TC attachments. For strokes >=300 mm, verify side-load tolerance. Because the stop screw is not a lock, use SAIL or BSAI variants for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X175-75S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75S FAQ
Yes, the SIJ63X175-75S is discontinued. The direct replacement is the SAIJ63X175-75S. It shares the identical ISO 15552 interface, 63 mm bore, 175 mm stroke, 75 mm adjust window, G3/8 port, and mounting, but adds an upgraded two-piece Y-shaped piston seal for longer life.
The external stop screw provides a 75 mm adjust window, allowing you to trim the extend stroke from the 175 mm maximum down to 100 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X175-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X175-75S replacement — usually within 7-8 hours.