Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-40
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 200mm 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
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-40
The AirTAC SAIJ63X200-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 200 mm nominal stroke that can be dialed back by up to 40 mm, creating a usable travel window of 160 to 200 mm for precise end-position tuning. This bore size delivers a robust 1559 N pull force at 0.5 MPa, making it suitable for medium-duty handling tasks.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and uses PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts only as a travel stop to decelerate the piston; it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-40 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 200 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 SAIJ63AX200-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×200 | 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 SAIJ63AX200-40 Is Used
Machine Changeovers
Dial in the exact 160 to 200 mm end-stop during product size transitions without swapping the physical cylinder or adding external stopper blocks.
Commissioning Fine-Tune
Trim up to 40 mm of travel at machine setup to perfectly time the contact position, compensating for mechanical tolerance stack-ups.
Variable End Stops
Adjust the retract position on the fly for conveyor sorting gates that handle varying package lengths within the 200 mm stroke envelope.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-40 the Right Cylinder?
Select this 63 mm bore cylinder when your application requires 1559 N of pull force at 0.5 MPa (or 2182 N at 0.7 MPa) and on-the-fly end-position tuning. If your process demands less force, the 50 mm bore offers 825 N pull at 0.5 MPa, whereas stepping up to the 80 mm bore yields 2268 N. The adjustable stroke is ideal for machine changeovers, eliminating the need to swap cylinders or add external stops during product size changes.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 200 mm stroke, 40 mm adjustment range, PT G3/8 port, and mounting style. SAIJ supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead, as this cylinder lacks a locking mechanism.
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 SAIJ63AX200-40 FAQ
The rear adjuster screw lets you shorten the effective travel by up to 40 mm, providing a usable stroke window of 160 to 200 mm. It acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
At 0.5 MPa, it provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
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