Airtac SAIJ200 Adjustable Cylinder SAIJ200X650-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X650-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 650mm 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
- Stroke650 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 SAIJ200X650-40
The AirTAC SAIJ200X650-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 610 to 650 mm, allowing you to dial back the nominal 650 mm stroke by up to 40 mm during commissioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model features a robust 40 mm carbon steel rod and a PT G3/4 port. The rear adjuster functions purely as a mechanical stop to set the end-of-travel position and relies on the integrated variable air cushions for deceleration. It is not a locking device, meaning live air pressure is required to hold the load in place. For applications needing true fail-safe holding, the SAIL or BSAI series would be required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X650-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X650-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 650 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 SAIJ200X650-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×650 | 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 SAIJ200X650-40 Is Used
Heavy Press Tuning
Dial in the exact 610 to 650 mm end-position during heavy press commissioning without swapping out the entire cylinder or adding external mechanical stops.
Product Size Changeover
Adjust the rear stopper by up to 40 mm to accommodate varying product lengths on a high-thrust assembly line during rapid product changeovers.
Variable End-Stop Setup
Use the rear screw to fine-tune the retraction end-point on demand, providing a flexible travel window for testing different component insertion depths.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X650-40 the Right Cylinder?
Choose this 200 mm bore when your application demands high thrust, specifically the 15708 N available at 0.5 MPa, and you need the flexibility to fine-tune the end position without adding external stops. The SAIJ200X650-40 is selected over a fixed-stroke SAI cylinder when machine setups require variable end-stops or product-size changeovers.
Because this cylinder features a 650 mm stroke, the long unsupported piston rod is susceptible to side-loading; an external guide rail must be used to prevent premature seal wear. When replacing an ISO 15552 cylinder, match the 200 mm bore, 650 mm stroke, 40 mm adjustment, PT G3/4 port, and desired mounting accessory from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). As no magnet is specified, position sensing requires external reed or solid-state switches rather than the internal CMSE or DMSE series.
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 SAIJ200X650-40 FAQ
The maximum theoretical force at 1.0 MPa is 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 650 mm nominal stroke down to a minimum of 610 mm. It sets the end position but does not lock the load without live air pressure.
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