Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-20
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X250-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm 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
- Stroke250 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 SAIJ200X250-20
The AirTAC SAIJ200X250-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel within a 230 to 250 mm window.
This 200 mm bore actuator uses a G3/4 PT threaded port and a robust 40 mm carbon steel rod with an M36x2 thread, ensuring high rigidity for heavy-duty tasks. It features variable air cushions at both ends (50 mm cushion length) and extruded aluminum barrel sensor grooves on both sides, though a position-sensing magnet is not included on this base model.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAIJ200X250-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SAIJ200X250-20 Is Used
Heavy Press Tuning
Dial in the exact 230-250 mm end-of-stroke position during machine setup to accommodate varying material thicknesses in large-scale metal forming or heavy pressing operations.
Product Changeover
Quickly adjust the retract stop on packaging or palletizing lines when switching to a different product size, saving downtime by avoiding complete cylinder replacement.
Fixture Calibration
Fine-tune the clamping reach on large automated fixtures, using the rear stopper to set precise material contact points without altering the main pneumatic circuit.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-20 the Right Cylinder?
Choose this adjustable-stroke variant when your machinery requires precise end-position calibration during commissioning or product changeover, eliminating the need to physically swap cylinders or bolt on external stops. If your application demands load holding without continuous live air pressure, note that the rear adjuster acts only as a travel stop, not a lock; you should instead evaluate the AirTAC SAIL or BSAI series, or utilize an external pilot-operated check valve.
For a 250 mm stroke on a 200 mm bore, the 40 mm rod handles substantial loads, but an external guide is highly recommended to prevent excessive side-loading on the piston. This SAIJ model is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Operating speed is 30-500 mm/s.
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 SAIJ200X250-20 FAQ
At the maximum rated pressure of 1.0 MPa, it delivers up to 3204 kgf.
The rear external adjusting screw acts as a mechanical stop that lets you shorten the nominal 250 mm stroke by up to 20 mm, creating a 230 to 250 mm usable travel window. It only sets the end position and does not lock or hold the load without live air pressure.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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