This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X100-50, 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 SIJ63X100-50
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X100-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X100-50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X100-50
- 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 SIJ63X100-50
The AirTAC SIJ63X100-50 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 50mm on-site, yielding a usable 50-100mm stroke from the 100mm nominal maximum. The direct replacement is the SAIJ63X100-50, preserving the interface, force, and adjust window.
This SKU lacks a magnet (-S omitted), so it cannot accept a magnetic switch. The SAIJ upgrade utilizes an improved two-piece Y-shaped piston seal for lower start-up pressure and longer life. Remember the stop screw sets end position; it is not a load lock, and drift occurs without live air.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-50 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X100-50 |
| Bore size | Ø63 mm |
| Stroke | 100 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 SAIJ63X100-50 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 SAIJ63X100-50 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 SIJ63X100-50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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 SIJ63X100-50 Is Used
Variable Pitch Indexing
Tuning the extend stroke on-site by up to 50mm allows a 63mm bore actuator to adapt part ejection distances between product families without swapping the entire cylinder body.
Adjustable Transfer Stops
A 100mm nominal stroke can be dialed back to precisely 75mm to act as a variable physical stop for mixed carton lengths arriving on a packaging line.
Calibrated Forming Pins
Inserting pins to a specific depth is simplified; the external screw trims the extend stroke to dial in the exact 60mm insertion required for varying material thicknesses.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-50 with the SAIJ63X100-50
To replace the discontinued SIJ63X100-50, order the direct replacement SAIJ63X100-50, reusing your existing FA, LB, or TC ISO 15552 mounts. The 50mm adjust window is ideal if your end position needs on-site tuning between 50mm and 100mm. This non-magnetic SKU cannot take sensors; for detection, specify the -S magnet option. For strokes >=300mm, verify your side-load limits. Because the stop screw is not a lock, use an external rod lock or SAIL/BSAI variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X100-50
- ✓ 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 SIJ63X100-50 FAQ
Yes, the SIJ63X100-50 is discontinued. The direct replacement is the SAIJ63X100-50. It shares the identical ISO 15552 interface, 63mm bore, 100mm nominal stroke, 50mm adjust window, G3/8 port, and mounting dimensions. The SAIJ family also adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
The external stop screw allows you to trim the extend stroke by up to 50mm on-site, giving a usable extend range of 50-100mm. Note that the stop screw sets the end position; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X100-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X100-50 replacement — usually within 7-8 hours.