Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X85-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 85mm 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
- Stroke85 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 SAIJ200X85-40
The AirTAC SAIJ200X85-40 is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty applications. It features a rear mechanical adjuster that allows you to fine-tune the effective travel down from the 85 mm nominal stroke, creating a usable 45-85 mm window. This built-in adjustability is ideal for dialing in exact end positions during commissioning without the need to physically swap the cylinder or bolt on external stops.
The unit uses a robust 40 mm carbon steel rod with an M36x2 thread, paired with 50 mm variable air cushions at both ends to manage heavy impact loads. Fluid supply is routed through G3/4 PT tapered ports, and the extruded aluminum barrel includes sensor grooves on both sides for flexible CMSE or DMSE switch placement.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 85 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 SAIJ200X85-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×85 | 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 SAIJ200X85-40 Is Used
Heavy Press Tuning
Dial in the exact 45-85 mm travel window during heavy press commissioning to accommodate varying material thicknesses without changing the cylinder.
Product Changeover
Quickly adjust the end-stop position on automated lines when switching between different large-component product sizes.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-40 the Right Cylinder?
Select this 200 mm bore when your process requires extreme force—stepping down to a 160 mm bore drops the 0.5 MPa push force to 10053 N, while this SAIJ200X85-40 provides 15708 N. The rear stroke adjuster is a mechanical stop that sets the retract end position; it does not hold the load without live air pressure. If your application requires true fail-safe load holding, utilize an external rod lock or pilot-operated check valve, or switch to the AirTAC SAIL or BSAI series.
Because the 85 mm stroke is relatively short for this massive bore, side-load risks are minimal compared to longer strokes, but proper mounting alignment is still critical. This adjustable-stroke model is dimensionally interchangeable per ISO 15552 mounting interfaces. When replacing a cylinder, match the 200 mm bore, 85 mm stroke, 40 mm adjustment range, G3/4 PT ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ200X85-40 FAQ
The rear adjuster acts as a mechanical stop that shortens the retract travel. For this model, you can trim the 85 mm nominal stroke back by up to 40 mm, giving an effective travel window of 45-85 mm for fine-tuning at commissioning.
It can reach a maximum push force of 3204 kgf at 1.0 MPa.
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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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