Airtac SAIJ200 Adjustable Cylinder SAIJ200X450-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200X450-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 450mm 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
- Stroke450 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 SAIJ200X450-75
The AirTAC SAIJ200X450-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty operations. It yields 15708N push and 15080N pull at 0.5 MPa, scaling up to a maximum of 3204 kgf at 1.0 MPa. The integrated rear stopper allows you to fine-tune the effective travel down from the 450mm nominal stroke, creating a precise 375-450mm usable window. This eliminates the need to swap out the entire cylinder when product dimensions change on the line.
Built with a robust 40mm carbon steel rod and M36x2 rod threading, this 200mm bore unit handles substantial loads. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting. If position detection is required later, adding an -S magnet variant enables the use of AirTAC CMSE reed or DMSE electronic solid-state sensors. Fluid must be filtered to 40 um, and the standard TPU seals support an operating temperature range of -20 to +70 C.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X450-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X450-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 450 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 SAIJ200X450-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×450 | 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 SAIJ200X450-75 Is Used
Heavy Press Tuning
Dial in the exact 375-450mm end-position on large forming presses during tooling changeovers without replacing the actuator.
Variable Product Stops
Adjust the rear stopper on the fly to accommodate different pallet or package sizes on a heavy-duty conveyor line.
Large Assembly Positioning
Fine-tune the retract distance for heavy automotive or structural components during multi-stage assembly processes.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X450-75 the Right Cylinder?
Selecting this 200mm bore model is appropriate when extreme force is necessary, as stepping down to a 160mm bore drops the 0.5 MPa push force to 10053N. The 75mm adjustment range is ideal for heavy machinery requiring variable end-stops during setup or product changeover, replacing the need for fixed-stroke SAI cylinders and external mechanical stops. Note that the rear adjuster functions strictly as a travel stop to set deceleration alongside the air cushions; it does not hold the load without live air. For dead-load holding, a SAIL pneumatic lock or BSAI clamp-lock cylinder is required.
Because the 450mm stroke is substantial, the 40mm rod requires external guidance to prevent excessive side-loading and premature seal wear. This cylinder uses a PT tapered port thread and operates at 30-500 mm/s. It is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
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 SAIJ200X450-75 FAQ
At 0.5 MPa, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum operating pressure of 1.0 MPa, it delivers up to 3204 kgf.
The rear adjuster acts as an external stopper that trims the effective travel back from the 450mm nominal stroke. This creates a usable 375-450mm window, allowing you to set the exact end-position during commissioning without adding external stops.
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 SAIJ200 Adjustable Cylinder SAIJ200X450-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.