Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-30S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X85-30S 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 SAIJ200X85-30S
The AirTAC SAIJ200X85-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 85 mm nominal travel by up to 30 mm. This yields a usable end-position window of 55-85 mm, giving you precise control over the retract stop during commissioning without needing external stops.
This variant includes a standard carbon steel rod and a -S magnet for position sensing. The extruded aluminum barrel features sensor grooves on both sides, compatible with AirTAC CMSE reed and DMSE solid-state switches. It uses a PT tapered G3/4 port, and the integrated adjustable air cushions at both ends decelerate the substantial 40 mm rod assembly safely within the 30-500 mm/s speed range.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-30S |
|---|---|
| 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 SAIJ200X85-30S
| 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 SAIJ200X85-30S Is Used
Heavy Pressing
Applies up to 3204 kgf for forming and joining operations, with the 55-85 mm window allowing exact tuning of the pressing depth.
Product Changeover
Quickly readjusts the retract end-stop on a production line when switching between product variants of slightly different heights.
Large Clamp Jigs
Secures heavy workpieces during machining, using the 30 mm adjuster to set the exact clamping position without adding external stopper blocks.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X85-30S the Right Cylinder?
The adjustable 55-85 mm travel window is ideal for product changeovers where the exact end-of-stroke contact point varies slightly between parts, replacing the need to physically swap a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 85 mm stroke, 30 mm adjustment, PT G3/4 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Remember that the rear adjuster and air cushions act only as travel stops and deceleration devices; they do not hold the load without live air. For true fail-safe load holding, consider an SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock.
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 SAIJ200X85-30S FAQ
At the maximum operating pressure of 1.0 MPa, the push force reaches 21991 N, and the absolute limit is 3204 kgf.
The rear adjuster screw acts as a mechanical stop that trims the effective travel back from the 85 mm nominal stroke. By turning the screw, you can set the actual stroke anywhere within a 55 mm to 85 mm window to fine-tune the end position.
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Standard models are processed and dispatched in 3-5 business days.
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