This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X35-30, 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 SIJ63X35-30
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X35-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 35mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X35-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke35 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X35-30
- 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 SIJ63X35-30
The AirTAC SIJ63X35-30 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 5-35 mm extend window from the 35 mm nominal maximum. The 63 mm bore features a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions. The direct replacement is the SAIJ63X35-30, matching the interface, force, and mounts.
The SAIJ successor retains ISO 15552 mounting dimensions and adds an upgraded two-piece Y-shaped piston seal 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 lock; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X35-30 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X35-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X35-30 |
| Bore size | Ø63 mm |
| Stroke | 35 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 SAIJ63X35-30 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 SAIJ63X35-30 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 SIJ63X35-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×35 | 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 SIJ63X35-30 Is Used
Short-Stroke Clamping
Provides adjustable 5-35 mm clamping travel for machining fixtures, allowing operators to tune the exact grip position on varying part thicknesses.
Diversion Gate Stops
Acts as a height-variable flow stop on packaging lines, where the 30 mm trim window fine-tunes the physical barrier position for mixed product sizes.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X35-30 with the SAIJ63X35-30
To replace the discontinued SIJ63X35-30, order the direct replacement SAIJ63X35-30 to reuse your existing FA, LB, or TC mounts. Choose the 30 mm adjust window when you need precise on-site end-position tuning between 5 and 35 mm. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. Since the 35 mm stroke is under 300 mm, standard side-load rules are relaxed, but always confirm the stop screw is only for positioning and never for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X35-30
- ✓ 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 SIJ63X35-30 FAQ
Yes, the SIJ63X35-30 is discontinued. The direct replacement is the SAIJ63X35-30. It shares the same ISO 15552 interface, 63 mm bore, 35 mm stroke, 30 mm adjust window, G3/8 port, and mounting options, while adding an upgraded piston seal.
The external stop screw offers a 30 mm adjust window, shortening the 35 mm nominal extend stroke down to 5 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X35-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X35-30 replacement — usually within 7-8 hours.