This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X600-40, 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 SIJ63X600-40
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X600-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 600mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X600-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke600 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X600-40
- 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 SIJ63X600-40
The AirTAC SIJ63X600-40 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 560-600 mm window from the 600 mm nominal maximum. As an SIJ model it is end-of-life; the direct replacement is the SAIJ63X600-40, sharing the same interface, force, and mounting.
The SAIJ successor retains the M16x1.5 rod and 30 mm cushions but adds an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. Note this non-magnetic SKU cannot take a switch; the stop screw sets end position but is not a load lock.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X600-40 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X600-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X600-40 |
| Bore size | Ø63 mm |
| Stroke | 600 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 SAIJ63X600-40 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 SAIJ63X600-40 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 SIJ63X600-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×600 | 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 SIJ63X600-40 Is Used
Variable Stop Machining
Tuning the extend position by up to 40 mm on-site to accommodate different raw part lengths without reprogramming the machine cycle.
Adjustable Transfer Diverter
Setting a precise 560 to 600 mm extend stroke to deflect varying package sizes on a sorting line, allowing rapid mechanical recalibration.
Variable Depth Pallet Stops
Field-adjusting the end position to handle multiple pallet depths, using the external stop screw to dial in the exact 40 mm trim window.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X600-40 with the SAIJ63X600-40
To replace the discontinued SIJ63X600-40, specify SAIJ63X600-40 for an direct. The 40 mm adjust window is ideal if your end position needs minor field tuning; for fixed points, a standard SAI cylinder is simpler. Mounting reuse via ISO 15552 includes Basic, FA, LB, and TC brackets. Because this is a 600 mm stroke, use external guides to prevent rod bending and side-load wear. This SKU lacks the -S magnet, so it cannot support legacy CS1-B/DS1-B sensors; add external sensing if needed. The stop screw cannot hold loads on air loss—use SAIL or an external rod lock for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X600-40
- ✓ 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 SIJ63X600-40 FAQ
Yes, the SIJ63X600-40 is discontinued. The direct replacement is the SAIJ63X600-40, which matches the 63 mm bore, 600 mm stroke, 40 mm adjust window, G3/8 port, and ISO 15552 mounting interface.
The external stop screw offers a 40 mm adjust window, shortening the 600 mm nominal extend stroke down to 560 mm. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X600-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X600-40 replacement — usually within 7-8 hours.