Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X70-30 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 SAIJ200X70-30
The AirTAC SAIJ200X70-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty operations. By utilizing the integrated 30mm adjustment screw, you can fine-tune the effective travel down from the 70mm nominal stroke, creating a precise 40-70mm usable positioning window without external stops.
This bore features a robust 40mm carbon steel piston rod and a G3/4 PT tapered port to handle high volumes of air efficiently. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing you to easily mount CMSE reed or DMSE electronic sensors if position feedback is later required. It relies on standard variable air cushions at both ends to decelerate the heavy load smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30 |
|---|---|
| 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 SAIJ200X70-30
| 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 SAIJ200X70-30 Is Used
Heavy Press Tuning
Dial in the exact 40-70mm crushing or pressing distance during machine setup to accommodate different material thicknesses without swapping actuators.
Product Changeover
Quickly adjust the rear stopper on a packaging line to handle varying large-format product sizes, ensuring precise end-of-stroke positioning on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30 the Right Cylinder?
Choose this 200mm bore actuator when an application demands extreme force, such as 15708N at 0.5 MPa, alongside precise end-position tuning. The adjustable stroke is ideal for commissioning fine-tunes or product changeovers, whereas a fixed-stroke SAI cylinder is preferable if the end-stop never varies.
Because the stroke is 70mm, the unsupported rod extension is minimal, but the sheer mass of the piston means external guiding remains best practice for rigid mounting. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true pneumatic locking, consider the SAIL or BSAI series. This model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set of 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 SAIJ200X70-30 FAQ
The rear adjusting screw acts as a mechanical stopper that lets you trim the effective travel back by up to 30mm from the 70mm nominal stroke. This creates a usable 40-70mm travel window for fine-tuning the end position at commissioning without adding external stops.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.