Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 140mm 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
- Stroke140 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10
The AirTAC SAIJ63X140-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 140 mm travel that can be dialed back by up to 10 mm, creating a precise 130-140 mm usable window for commissioning without external stops. Delivering a 0.5 MPa push thrust of 1559 N and a pull thrust of 1402 N, it fits robust mid-range actuation tasks perfectly.
This SKU features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It uses a PT tapered G3/8 port and lacks a piston magnet, meaning it operates without electronic or reed position sensing. The extruded aluminum barrel includes sensor grooves on both sides should you later need a sensing variant, while the adjustable rear stopper acts purely as a travel end-limit, not a load-holding brake.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 140 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 SAIJ63AX140-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×140 | 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 SAIJ63AX140-10 Is Used
Machine Commissioning
Dial in the exact 130-140 mm end-stop during initial machine setup to perfect striking distance without machining external spacers.
Product Changeover
Quickly trim the stroke by up to 10 mm on packaging lines when switching to a slightly shorter product format.
Mid-Force Actuation
Leverage the 1559 N push force at 0.5 MPa for clamping, lifting, or pressing tasks that require precise positional endpoints.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10 the Right Cylinder?
Choose this 63 mm bore when your application requires the 1559 N push force at 0.5 MPa, stepping up from a 50 mm bore that yields 982 N, or down from an 80 mm bore providing 2513 N. The 10 mm rear adjuster is ideal for fine-tuning end positions during machine setup or product changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot match. Since the rear screw and integrated air cushions only decelerate the load, you must maintain live air pressure to hold position; for true fail-safe load holding without air, consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 140 mm stroke, 10 mm adjustment range, PT G3/8 port, and the specific mounting interface. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, but omits FB, CA, CB, and CR. With a 140 mm stroke, side-loading is minimal, but always ensure the M16x1.5 rod thread is aligned with your load 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 SAIJ63AX140-10 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. At the maximum 1.0 MPa pressure, it achieves a push force of 318 kgf.
The rear adjuster screw acts as a mechanical stop that shortens the effective travel from the 140 mm nominal stroke down to as little as 130 mm. It only sets the end position and does not lock or hold the load without live air pressure.
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