Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 55mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke55 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50
The AirTAC SAIJ200X55-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 55 mm travel back by up to 50 mm. This creates a highly flexible 5 to 55 mm usable travel window, letting you dial in the exact retract end-position during commissioning without swapping out the barrel or adding external stops. Built with a robust 40 mm SUS420J2 stainless steel rod and a G3/4 PT port, it delivers massive thrust up to 15708 N at 0.5 MPa.
Because the rear adjuster acts purely as a mechanical stop and works in tandem with the variable air cushions at both ends, it decelerates the load but does not hold it without live air pressure. For fail-safe load holding, you would need to specify a separate SAIL or BSAI lock cylinder. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is added later. SAIJ supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 55 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×55 | 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 SAIJ200AX55-50 Is Used
Variable End-Position Tuning
Dial in the exact retract distance from 5 to 55 mm during machine commissioning to perfect product placement without changing hardware.
Product Size Changeovers
Quickly adapt automated lines to new package sizes by adjusting the rear stopper screw, eliminating the need to swap out entire cylinders.
High-Force Pressing
Leverage the 15708 N of push force at 0.5 MPa for heavy pressing or forming tasks that require precise, adjustable travel limits.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50 the Right Cylinder?
Choose this 200 mm bore when your application requires extreme push force, stepping up from a 160 mm bore that provides 10053 N at 0.5 MPa. The adjustable stroke is ideal for machine changeovers where product sizes vary, allowing operators to fine-tune the retract distance on the fly rather than maintaining an inventory of fixed-stroke SAI cylinders. Since the 55 mm nominal stroke is short, side-load risks are minimal, but the heavy 40 mm rod thread provides excellent rigidity for any offset loads. Remember that the adjustment screw only sets the travel endpoint; it is not a brake.
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 SAIJ200AX55-50 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 50 mm from the nominal 55 mm, giving a usable travel window of 5 to 55 mm. It acts as a mechanical stop to set the retract position precisely.
At 0.5 MPa operating pressure, the SAIJ200X55-50 provides a push force of 15708 N and a pull force of 15080 N. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf of push force.
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 SAIJ200 Adjustable Cylinder SAIJ200AX55-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.