Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-50S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X70-50S 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 SAIJ200X70-50S
The AirTAC SAIJ200X70-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling precise end-position tuning without external stops. With a 70 mm nominal stroke and a 50 mm adjustment range, it provides a usable travel window of 20-70 mm.
This variant features a carbon steel piston rod and includes a magnet (-S) for electronic DMSE or reed CMSE position sensing. The extruded aluminum barrel includes sensor grooves on both sides. It operates at 30-500 mm/s and uses PT tapered G3/4 ports. The rear adjuster acts purely as a travel stop and does not hold the load without live air; for position holding, consider the SAIL or BSAI series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-50S |
|---|---|
| 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 SAIJ200X70-50S
| 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 SAIJ200X70-50S Is Used
Heavy-Duty Press Tuning
Dial in the exact 20-70 mm travel window during press commissioning to accommodate varying material thicknesses without adding external mechanical stops.
Product Changeover Systems
Rapidly adjust the retract end-position by up to 50 mm on packaging lines handling different package dimensions, minimizing downtime between production runs.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-50S the Right Cylinder?
If you need less force, stepping down to a 160 mm bore yields 10053 N at 0.5 MPa. The 50 mm adjustment range is ideal for machine setups requiring frequent product-size changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. When replacing an ISO 15552 cylinder, match the 200 mm bore, 70 mm stroke, 50 mm adjustment, PT G3/4 port, and the -S magnet requirement. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ200X70-50S FAQ
At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw allows you to shorten the 70 mm nominal stroke by up to 50 mm, creating a usable travel window of 20-70 mm. This adjuster functions as a mechanical stop to fine-tune the end position and does not lock the load without continuous air pressure.
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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.
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Most inquiries answered within 7-8 hours.
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