Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-30
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X850-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 850mm 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
- Stroke850 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 SAIJ200X850-30
The AirTAC SAIJ200X850-30 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa. Its 850mm nominal stroke can be dialed back by up to 30mm, providing a usable travel window of 820 to 850mm for exact end-position tuning. This eliminates the need to swap cylinders or bolt on external stops during commissioning.
It features a robust 40mm carbon steel rod and M36x2 thread, paired with 50mm air cushions at both ends to manage heavy kinetic energy. The extruded aluminum barrel includes sensor grooves on both sides, and the G3/4 PT tapered port handles the high air volume required for its 30-500mm/s speed range.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 850 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 SAIJ200X850-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×850 | 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 SAIJ200X850-30 Is Used
Heavy Stamping Setup
Fine-tune the 820-850mm end-stop during press changeovers to accommodate varying die heights without swapping actuators.
Large Assembly Lines
Dial in the exact retraction point for bulky product variants, using the rear stopper to adjust the 850mm stroke on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-30 the Right Cylinder?
An adjustable stroke is ideal for product changeovers on large machinery, allowing you to set a variable end-stop without replacing the cylinder. For any stroke of 850mm, an external guide is strictly recommended to prevent side-load damage to the rod.
Remember that the rear adjuster acts as a travel stop, not a lock; it cannot hold the load without live air pressure. For true load-holding, use an external rod lock or pilot-operated check valve. This cylinder is dimensionally interchangeable per ISO 15552, uses a G3/4 PT port, and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ200X850-30 FAQ
At 0.5 MPa, the push force is 15708N and the pull force is 15080N. At 0.7 MPa, the push force increases to 21991N.
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective travel from 850mm down to 820mm. It sets the end position but does not lock the load without live air.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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