Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-50S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX850-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 850mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke850 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 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 SAIJ100 Adjustable Cylinder SAIJ100AX850-50S
The AirTAC SAIJ100X850-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 800 to 850 mm, letting you dial back the nominal 850 mm stroke by up to 50 mm during commissioning without swapping components.
This variant includes an SUS420J2 stainless steel rod (code A) for improved corrosion resistance and comes with a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides. It uses a G1/2 port and offers variable air cushions at both ends to manage deceleration across its 30-800 mm/s speed range.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 850 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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 SAIJ100 Adjustable Cylinder SAIJ100AX850-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX850-50S Is Used
Precision End-Stop Tuning
Fine-tune the retraction point within the 800-850 mm window during machine commissioning to dial in exact positioning without machining new hard stops.
Product Size Changeover
Quickly adapt a packaging or handling line to different product lengths by rotating the rear adjuster screw, saving time versus swapping out a fixed-stroke SAI cylinder.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-50S the Right Cylinder?
The adjustable 800-850 mm window is ideal for machines that require precise end-position tuning during product changeovers, functioning as a physical stop rather than a lock. For load-holding without live air pressure, select a SAIL or BSAI cylinder instead. To match this ISO 15552 interchangeable cylinder, specify the 100 mm bore, 850 mm stroke, 50 mm adjustment, PT port thread, and the -S magnet option.
Because the 850 mm stroke is long and unsupported, the 25 mm rod diameter and M20x1.5 rod thread must carry significant side loads. Always pair this cylinder with an external guide to prevent rod bending and premature seal wear.
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 SAIJ100AX850-50S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from 850 mm down to 800 mm. It only sets the end position and does not hold the load without live 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 are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.