Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X70-40 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 SAIJ200X70-40
The AirTAC SAIJ200X70-40 is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty applications. An integrated rear adjusting screw allows you to trim the effective travel back by up to 40mm, providing a precise 30-70mm usable window for dialing in end positions during commissioning.
This model utilizes a robust 40mm carbon steel rod and a PT tapered G3/4 port to handle high flow requirements. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible mounting of CMSE or DMSE switches. Unlike fixed-stroke alternatives, this design enables on-the-fly product changeovers without physically swapping the cylinder or adding external stopper blocks.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-40 |
|---|---|
| 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 SAIJ200X70-40
| 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 SAIJ200X70-40 Is Used
Heavy Press Tuning
Dial in the exact 30-70mm end-of-stroke position on heavy forming presses without machining new hard stops.
Product Changeover
Quickly adjust the retract distance on a packaging line to accommodate different oversized product dimensions.
Assembly Station Setup
Fine-tune the clamping reach during initial machine commissioning to prevent overtravel damage to large components.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X70-40 the Right Cylinder?
The adjustable 30-70mm travel window is specifically beneficial for machinery requiring variable end-stops or fine-tuning at setup. Because the stroke is 70mm, external side-load guides are less critical than on longer strokes, but the 40mm rod thread handles significant offset loads.
When specifying a replacement, ensure you match the 200mm bore, 70mm nominal stroke, 40mm adjustment range, PT port thread, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the rear adjuster functions strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI variant. This cylinder operates at speeds of 30-500mm/s.
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 SAIJ200X70-40 FAQ
At the maximum 1.0MPa pressure, it can deliver up to 3204kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 70mm nominal stroke by up to 40mm. This creates a usable travel window of 30-70mm, enabling fine end-position tuning without replacing the cylinder.
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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.
Related AirTAC SAI Cylinders
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