Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-50 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 SAIJ200AX140-50
The AirTAC SAIJ200X140-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers massive thrust, pushing with 15708N and pulling with 15080N at 0.5 MPa. The built-in rear stopper allows you to fine-tune the travel window down from the 140mm nominal stroke to a minimum of 90mm, giving you a 50mm adjustment range to perfectly dial in the retract end-position during commissioning.
This heavy-duty actuator utilizes a robust 40mm diameter piston rod with an M36x2 thread, providing exceptional resistance to side loads. The rod is constructed from SUS420J2 stainless steel (material code A) for enhanced corrosion resistance, and air supply connects via G3/4 PT tapered ports. It reaches a maximum standard stroke of 1500mm and operates at speeds of 30-500mm/s, supported by 50mm of variable air cushioning at both ends.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-50 |
|---|---|
| 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 SAIJ200AX140-50
| 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 SAIJ200AX140-50 Is Used
Heavy Press Tonnage
Ideal for high-force pressing operations where the 50mm stroke adjustment allows operators to accommodate varying material thicknesses or tooling stacks without repositioning the entire actuator assembly.
Product Changeover
Enables rapid line changeovers on large packaging or forming equipment by letting technicians quickly dial the retract end-stop back by up to 50mm to match new product dimensions.
Precision End-Stop Tuning
Perfect for heavy machinery commissioning where the exact bottom-out position must be micro-adjusted to synchronize with other moving components, avoiding the need for custom spacer shims.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-50 the Right Cylinder?
Select this 200mm bore cylinder when your application requires extreme force—up to 15708N at just 0.5 MPa. If your machinery does not need this full capacity, stepping down to a 160mm bore saves space and still provides 10053N of push force. Choose the SAIJ adjustable version over a fixed-stroke SAI when you need precise end-position tuning during machine setup or product changeovers without physically swapping the cylinder or adding external stops.
Because the nominal stroke is 140mm, an external guide is not strictly required for side-load support, but the 40mm rod and M36x2 thread handle substantial loads. Remember that the rear adjuster acts only as a travel stop and the air cushions manage deceleration; neither holds the load without live air. For fail-safe load holding without continuous pneumatic pressure, integrate an external rod lock or pilot-operated check valve, or select the SAIL or BSAI series. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200AX140-50 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. It operates at speeds between 30 and 500mm/s and features 50mm of air cushioning at both ends to decelerate these massive loads.
The cylinder has a 140mm nominal stroke, but the external rear adjusting screw lets you shorten the effective travel by up to 50mm, creating a usable 90-140mm window. This allows you to fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops.
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