Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-20S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X850-20S 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 SAIJ200X850-20S
The AirTAC SAIJ200X850-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 20 mm. This yields a usable 830-850 mm adjustable window, letting you dial in the exact end position at commissioning without swapping out the entire unit.
This specific SKU includes a standard carbon steel piston rod and a magnetic piston (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting, and the G3/4 PT tapered ports supply the high volume of air required to move this massive bore at its 30-500 mm/s speed range.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-20S |
|---|---|
| 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 SAIJ200X850-20S
| 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 SAIJ200X850-20S Is Used
Heavy Press Tuning
Fine-tune the 830-850 mm end-stop during heavy press commissioning to achieve precise material deformation without adding external spacers.
Large Product Changeover
Adjust the travel window by up to 20 mm on a conveyor line to accommodate different large pallet sizes quickly during product transitions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-20S the Right Cylinder?
Choose this 200 mm bore cylinder when your application demands extreme force that a 160 mm neighbor (providing 10053 N at 0.5 MPa) cannot handle. The adjustable rear stopper is highly beneficial for heavy product changeovers, allowing you to shift the end-stop by up to 20 mm without installing external mechanical stops. For any stroke length of 850 mm, the 40 mm diameter carbon steel rod and substantial moving mass require an external guide to prevent side-loading damage.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. It supports the SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2) but omits FB, CA, CB, and CR brackets. Note that the rear adjuster acts as a travel stop to set deceleration, not a lock; the SAIJ will not hold a load without live air pressure. For secure load-holding, consider the SAIL or BSAI series instead.
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 SAIJ200X850-20S FAQ
At 0.9 MPa, the push force increases to 28274 N.
The rear adjuster screw acts as an external stop that trims the 850 mm nominal stroke back by up to 20 mm, creating an 830-850 mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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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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Most inquiries answered within 7-8 hours.
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