Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-40
The AirTAC SAIJ200X140-40 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stopper, enabling precise end-position tuning without external hardware. By integrating a 40mm adjustment mechanism, this unit provides a usable travel window between 100mm and 140mm. It delivers substantial thrust, generating 15708N of push force and 15080N of pull force at a 0.5 MPa operating pressure.
This bore features a robust 40mm piston rod with an M36x2 thread and PT tapered port threads. The rod is constructed from SUS420J2 stainless steel, offering enhanced corrosion resistance. Operating at a maximum speed of 30-500 mm/s, the barrel is an extruded aluminum profile with sensor grooves on both sides, rather than a traditional tie-rod design.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX140-40 Is Used
Heavy Press Fine-Tuning
Dial in the exact 100-140mm pressing depth on heavy machinery during setup, avoiding the need to swap cylinders or add external mechanical stops.
Variable Product Changeover
Adapt large-scale automated lines to different product sizes by adjusting the retract stroke end-point on the fly to accommodate new material heights.
Large Fixture Positioning
Securely set the travel limit for massive workholding fixtures, using the rear stopper to define the precise 100mm minimum retraction boundary.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-40 the Right Cylinder?
Selecting this 200mm bore model is ideal when your application requires the highest force output, as stepping down to a 160mm bore reduces the 0.5 MPa push force to 10053N. The adjustable-stroke feature is chosen over a fixed SAI cylinder when you need to fine-tune the retract end-position during commissioning or product changeovers. Since the rear adjuster acts only as a travel stop and the air cushions serve to decelerate the load, neither will hold the load without live air pressure. For true load-holding, consider an external rod lock, a pilot-operated check valve, or AirTAC SAIL and BSAI clamp-lock variants.
When ordering for ISO 15552 dimensional interchangeability, confirm the 200mm bore, 140mm nominal stroke, 40mm adjustment, PT port threads, and the standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because this cylinder lacks a -S magnet, it cannot host AirTAC CMSE reed or DMSE electronic sensors without modification.
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 SAIJ200 Adjustable Cylinder SAIJ200AX140-40 FAQ
The SAIJ200X140-40 features a rear adjusting screw that acts as a mechanical stopper, allowing you to trim the effective stroke by up to 40mm. This creates a usable travel window between 100mm and 140mm without changing the cylinder's physical mounting.
At an operating pressure of 0.5 MPa, this double-acting cylinder provides a push force of 15708N and a pull force of 15080N. It can reach a maximum push force of 3204 kgf at 1.0 MPa.
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