This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X175-30, 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-30
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X175-30 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 SAIJ63X175-30, 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 → SAIJ63X175-30
- 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-30
The AirTAC SIJ63X175-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63mm bore and 175mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, yielding a usable 145-175mm window. The direct replacement is the SAIJ63X175-30, matching the interface, force, and mounting.
The SAIJ successor introduces an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note this non-magnet SKU cannot accept a sensor switch. The stop screw sets end position but is not a lock; loads drift on air loss, so use an external rod lock for holding.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-30 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X175-30 |
| 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 SAIJ63X175-30 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 SAIJ63X175-30 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 SIJ63X175-30
| 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 SIJ63X175-30 Is Used
Variable-depth pressing
Allows operators to dial in the extend stroke from 145 to 175mm on-site for pressing assemblies to precise depths without swapping cylinders.
Adjustable diverters
Provides field-tuned extension lengths for diverting varying package sizes on a line, using the 30mm stop screw to alter the reach.
Variable-position stops
Sets physical end-stops at different points along the 145-175mm range to accommodate changing product dimensions in sorting operations.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-30 with the SAIJ63X175-30
To replace the SIJ63X175-30, order the direct replacement SAIJ63X175-30, reusing your existing FA, LB, or TC ISO 15552 mounts. Select the 30mm adjust window if your field tuning requires trimming the 175mm extend stroke down to 145mm. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors; confirm if a sensing variant is required. For strokes of 300mm or longer, verify side-load constraints to prevent guide wear. The external stop sets position but does not lock the load; for held loads, specify an external rod lock or a SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X175-30
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-30 FAQ
Yes, the SIJ63X175-30 is discontinued. The direct replacement is the SAIJ63X175-30, which shares the same ISO 15552 interface, 63mm bore, 175mm stroke, 30mm adjust window, G3/8 port, and mounting options.
The external stop screw provides a 30mm adjustment window, allowing the 175mm extend stroke to be shortened to 145mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X175-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X175-30 replacement — usually within 7-8 hours.