This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X600-30, 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 SIJ63X600-30
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X600-30 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 SAIJ63X600-30, 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 → SAIJ63X600-30
- 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 SIJ63X600-30
The AirTAC SIJ63X600-30 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ63X600-30. It uses an external stop screw to trim the extend stroke by up to 30 mm on-site, giving a usable extend range of 570-600 mm. The 63 mm bore features a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions at each end. The SAIJ direct keeps the exact mounting interface, bore, and force, while adding an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
Note this SKU lacks a -S magnet and cannot take a switch. The stop screw sets the end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X600-30 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X600-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X600-30 |
| 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 SAIJ63X600-30 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 SAIJ63X600-30 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 SIJ63X600-30
| 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 SIJ63X600-30 Is Used
Press Fit Tuning
Allows operators to dial in the exact 570-600 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusts the extend stroke by up to 30 mm to deflect varying package sizes on a conveyor line accurately.
Adjustable End Stop
Sets a precise mechanical end-of-stroke position for pallet positioning that can be tweaked as pallet dimensions vary.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X600-30 with the SAIJ63X600-30
To replace the discontinued SIJ63X600-30, order the direct replacement SAIJ63X600-30, which preserves the 600 mm maximum stroke, 30 mm adjust window, G3/8 port, and ISO 15552 mounting. Choose the 30 mm adjust window if you need to fine-tune the extend end position by up to 30 mm on-site. Select FA, LB, or TC mountings to match your existing ISO 15552 fixture. Because this is a non-magnetised SKU, it cannot accept a sensor. For the 600 mm stroke, use external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X600-30
- ✓ 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 SIJ63X600-30 FAQ
Yes, the SIJ63X600-30 is discontinued. The direct replacement is the SAIJ63X600-30, sharing the same 63 mm bore, 600 mm stroke, 30 mm adjust window, G3/8 port, and ISO 15552 mounting.
The external stop screw provides a 30 mm adjust window, shortening the extend stroke from 600 mm down to 570 mm.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X600-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X600-30 replacement — usually within 7-8 hours.