Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X70-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 70mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke70 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30S
The AirTAC SAIJ200X70-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty operations. Outfitted with a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic sensors to track piston position. The extruded aluminum barrel design incorporates sensor grooves on both sides for flexible switch mounting.
This model features a 70 mm nominal stroke paired with a 30 mm adjustment range, yielding a usable travel window of 40-70 mm for precise end-position tuning. The rear stopper allows you to dial in the exact retract distance during commissioning without adding external stops, while the standard PT tapered ports ensure a secure pneumatic connection.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 70 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×70 | 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 SAIJ200X70-30S Is Used
Heavy Press Tuning
Dial in the exact 40-70 mm retract distance during heavy press commissioning to accommodate material thickness variations without installing external mechanical stops.
Product Changeover
Quickly adjust the end-stop position on a production line when switching between different product sizes, leveraging the 30 mm adjustment range for rapid setup.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30S the Right Cylinder?
The adjustable 40-70 mm travel window is perfect for applications requiring variable end-stops or frequent product changeovers, eliminating the need to physically swap cylinders compared to a fixed-stroke SAI model. When matching ISO 15552 replacements, verify the 70 mm stroke, 30 mm adjustment, PT port thread, and the -S magnet requirement.
Because this SKU features a relatively short 70 mm stroke, the 40 mm rod is well-supported and handles side loads effectively without requiring an external guide. Remember that the rear adjuster functions strictly as a travel stop, not a lock; the cylinder cannot hold a load without continuous air pressure. For applications requiring true load-holding, consider the SAIL air-released lock or BSAI clamp-lock variants. Mounting options include the SAIJ subset: 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 SAIJ200X70-30S FAQ
At the maximum rated pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm. With the 70 mm nominal stroke, this creates a usable travel window of 40-70 mm, letting you fine-tune the retract end position at commissioning without replacing the cylinder.
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Standard models are processed and dispatched in 3-5 business days.
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