This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X500-30, 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 SIJ63X500-30
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X500-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 500mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X500-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X500-30
- 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 SIJ63X500-30
The AirTAC SIJ63X500-30 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 30 mm on-site, yielding a usable 470-500 mm stroke from the 500 mm nominal maximum. As a standard cylinder, it does not hold loads on air loss; the stop sets end position, it is not a lock.
The direct replacement is the SAIJ63X500-30, preserving the 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. This non-magnetic SKU cannot take a switch; for load holding, use an external rod lock or SAIL/BSAI variant.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X500-30 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X500-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X500-30 |
| Bore size | Ø63 mm |
| Stroke | 500 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 SAIJ63X500-30 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 SAIJ63X500-30 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 SIJ63X500-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×500 | 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 SIJ63X500-30 Is Used
Press Fit Tuning
Final insertion depth varies by material batch; the 30 mm on-site adjust window lets operators dial in the exact 470-500 mm extend endpoint without re-mounting the actuator.
Variable Length Diverter
A diverting gate on a packaging line needs to hit different product sizes; trimming the extend stroke by up to 30 mm accommodates format changes directly at the machine.
Adjustable End Stop Pusher
When pushing pallets of varying widths, the external stop screw sets the precise push-off distance, preventing over-travel while maintaining full retraction force.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X500-30 with the SAIJ63X500-30
To replace the discontinued SIJ63X500-30, order the direct replacement SAIJ63X500-30, which matches the 63 mm bore, 500 mm stroke, 30 mm adjust window, G3/8 port, and ISO 15552 mounting. Size both ways using 0.5 MPa push force: step down to a 50 mm bore for 982 N, or up to an 80 mm bore for 2513 N. Choose the 30 mm adjust window if you need field tuning of the extend end-position; the external stop screw sets this position but is not a load lock. Mounting attachments (FA, LB, TC) reuse the ISO 15552 interface. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch. For the 500 mm stroke, use external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X500-30
- ✓ 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 SIJ63X500-30 FAQ
Yes, the SIJ63X500-30 is discontinued. The direct replacement is the SAIJ63X500-30, which shares the identical ISO 15552 interface, 63 mm bore, 500 mm stroke, 30 mm adjust window, G3/8 port, and mounting options.
The external stop screw provides a 30 mm adjust window, shortening the extend stroke from 500 mm down to 470 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X500-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X500-30 replacement — usually within 7-8 hours.