Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-100S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 105mm 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
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-100S
The AirTAC SAIJ63X105-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 105 mm stroke by up to 100 mm. This creates a highly variable 5-105 mm usable travel window, perfect for prototyping or applications requiring frequent product-size changeovers without swapping out the physical actuator. It delivers 2182 N of push force and 1559 N of pull force at 0.7 MPa.
Equipped with a -S magnet, this unit supports AirTAC CMSE reed and DMSE solid-state electronic sensors housed neatly within the dual-side sensor grooves of the extruded aluminum barrel. The piston rod is constructed from SUS420J2 stainless steel (code A) for improved corrosion resistance, and air connections use PT tapered threads (G3/8 port). The rear adjuster functions strictly as a mechanical stop to set the end position and must not be relied upon to hold a load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-100S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 105 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 SAIJ63AX105-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×105 | 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 SAIJ63AX105-100S Is Used
Variable End-Stop Tuning
Dial in the exact retract distance from 5 to 105 mm on the fly, eliminating the need to machine custom spacers or external hard stops during machine commissioning.
Product Changeover Setup
Quickly adapt automated assembly lines for different product lengths by turning the rear adjustment screw, drastically reducing changeover downtime.
Prototyping & R&D Fixtures
Ideal for test rigs where the optimal stroke length is unknown initially, allowing engineers to find the perfect end-position dynamically without swapping cylinders.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-100S the Right Cylinder?
Choose this 63 mm bore when your application requires roughly 1559 N of pull force at 0.7 MPa; stepping down to a 50 mm bore drops the pull force to 825 N, while an 80 mm bore increases it to 2268 N. The massive 100 mm adjustment range on this specific SKU is ideal for machines that process varying product sizes, allowing operators to fine-tune the retract end-position during commissioning rather than machining external stops. If your process demands true load-holding without continuous air pressure, consider the SAIL (pneumatic lock) or BSAI (clamp-lock) series instead of relying on the SAIJ adjuster.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 105 mm nominal stroke, 100 mm adjustment requirement, PT G3/8 port, and the -S magnet option. This actuator operates at speeds of 30-800 mm/s and utilizes a 36 mm variable air cushion at both ends to decelerate the moving load.
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 SAIJ63AX105-100S FAQ
At a standard operating pressure of 0.7 MPa, this 63 mm bore cylinder provides 2182 N of push force and 1559 N of pull force. At 0.5 MPa, it delivers 1559 N push and 1402 N pull.
The rear adjuster acts as a mechanical stop that trims the effective travel back from the 105 mm nominal stroke, providing a usable window of 5 to 105 mm. It only sets the end position and does not lock or hold the load without live air pressure.
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