Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 95mm 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
- Stroke95 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75S
The AirTAC SAIJ63X95-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a highly flexible usable travel window of 20 to 95 mm. Delivering 1559 N of push thrust at 0.5 MPa, it handles mid-range actuation tasks with ease. The integrated -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE solid-state sensors mounted into the dual-side barrel grooves.
This adjustable-stroke design allows you to fine-tune the retract end position during commissioning without swapping the cylinder or adding external stops. The rear adjuster acts purely as a travel stop to set the end position and relies on the standard variable air cushion for deceleration; it is not a lock and will not hold a load without live air pressure. For load-holding requirements without continuous pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 95 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 SAIJ63X95-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×95 | 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 SAIJ63X95-75S Is Used
Machine Changeover
Dial in the retract stop from 20 to 95 mm during product size changes on a packaging line, avoiding the need to physically swap cylinders or remount external hard stops.
Variable End-Stop Positioning
Set precise end-of-stroke limits for multi-tier pressing or clamping operations where the material thickness varies, using the rear screw to trim the travel window exactly.
Commissioning Fine-Tuning
Adjust the effective stroke on the fly during initial machine setup to clear mechanical interferences or dial in exact positioning without disassembling the actuator assembly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75S the Right Cylinder?
Choose this 63 mm bore when your application requires approximately 1559 N of push force at 0.5 MPa, or step down to a 50 mm bore (982 N) if your load is lighter, or up to an 80 mm bore (2513 N) for heavier demands. The massive 75 mm adjustment range on this 95 mm nominal stroke is ideal for machines processing varying product sizes, allowing the retract stop to be dialed back significantly during changeovers rather than repositioning physical hardware.
As a dimensionally interchangeable ISO 15552 profile cylinder, it uses a PT tapered G3/8 port and a 20 mm carbon steel rod with an M16x1.5 thread. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 95 mm stroke is relatively short, external side-load guides are less critical here, but always ensure the rod thread is properly aligned to prevent binding.
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 SAIJ63X95-75S FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder provides 1559 N of push thrust and 1402 N of pull thrust. At the maximum pressure of 1.0 MPa, it delivers up to 318 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 95 mm nominal stroke by up to 75 mm, creating a usable travel window of 20 to 95 mm. It sets the end position and relies on the air cushion for deceleration, but it does not lock or hold the load without live air pressure.
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