Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 90mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke90 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S
The AirTAC SAIJ63X90-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 1559N of push force at 0.5 MPa. It features a carbon steel rod and a PT tapered port. Because this specific SKU carries a 40mm adjustment code on a 90mm nominal stroke, you can dial the effective travel back to anywhere within a 50-90mm usable window during commissioning.
This built-in adjustability lets you fine-tune the retract end position without swapping the cylinder or adding external stops. As a profile cylinder with sensor grooves on both sides, the -S magnet option directly supports AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop and works alongside the standard air cushions to decelerate the load; it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 90 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, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / 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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×90 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S Is Used
Product Changeover
Quickly adapt the 50-90mm stroke window on packaging lines when switching to different container sizes, eliminating the need to physically swap out cylinders.
End-Position Tuning
Fine-tune the exact retract distance during machine setup to perfect the alignment of tooling, compensating for mechanical tolerances on the fly.
Variable End Stops
Use the rear adjusting screw to set precise stopping points for clamping or pressing tasks without installing bulky external stopper blocks.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S the Right Cylinder?
Choose this 63mm bore when you need significantly more thrust than a 50mm bore (which provides 982N push at 0.5 MPa) but want to avoid the larger footprint of an 80mm option. An adjustable stroke is highly beneficial here because the 50-90mm travel window allows operators to dial in exact end positions during product changeovers, whereas a fixed SAI cylinder locks you into a single 90mm dimension.
When matching ISO 15552 replacements, verify the 63mm bore, 90mm nominal stroke, 40mm adjustment range, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. If your machine requires true load-holding without continuous air pressure, note that this cylinder's adjuster is not a lock; you should instead explore an AirTAC SAIL or BSAI cylinder.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S FAQ
At a 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 2182N.
The rear adjuster screw allows you to shorten the effective stroke by up to 40mm. This creates a usable travel window of 50-90mm, letting you set the exact end position at commissioning without changing the cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.