Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 85mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke85 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-50S
The AirTAC SAIJ100X85-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 85 mm travel to a precise usable window between 35 and 85 mm. Delivering 3927 N of push force at 0.5 MPa, it handles substantial workloads while maintaining standard ISO 15552 mounting dimensions.
This variant includes a piston magnet for position sensing with CMSE reed or DMSE electronic switches. It features a carbon steel rod and a PT tapered port thread. The rear adjustment screw acts purely as a travel stop for end-position tuning, so it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 85 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100X85-50S Is Used
Variable End-Stop Positioning
Dial in the exact clamping depth between 35 and 85 mm during machine setup, avoiding the need to physically swap out cylinders for different material thicknesses.
Product Size Changeovers
Quickly reconfigure the stroke on a packaging or sorting line to accommodate varying carton sizes, using the rear screw to fine-tune the retract position on the fly.
High-Force End Tuning
Leverage the 3927 N push force at 0.5 MPa for heavy pressing or forming tasks while making micro-adjustments to the end-of-stroke position during commissioning.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-50S the Right Cylinder?
Choose this 100 mm bore when you need higher thrust than a neighboring 80 mm bore (which provides 2513 N push at 0.5 MPa) but want to avoid the bulk of a 125 mm unit. The 50 mm adjustment range is ideal for product changeovers on a packaging line, letting you set variable end-stops without swapping cylinders or adding external stops. For an exact ISO 15552 replacement, match the 100 mm bore, 85 mm stroke, 50 mm adjust code, PT port, and -S magnet.
Because the 85 mm stroke is relatively short, side-load stress is minimal, but the 25 mm rod and M20x1.5 thread still provide robust mechanical stability. If your process requires the load to be held mechanically without continuous air pressure, you must use an external rod lock or look at the SAIL or BSAI locking cylinder series instead of relying on the SAIJ adjuster.
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 SAIJ100 Adjustable Cylinder SAIJ100X85-50S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the effective stroke from the nominal 85 mm down to as little as 35 mm, giving a 35-85 mm usable travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100X85-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.