Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-75
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X250-75 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 SAIJ200X250-75
It features a robust 40 mm carbon steel rod and utilizes a G3/4 PT tapered port for high-volume air supply. An integrated rear adjusting screw allows you to trim the nominal 250 mm stroke back by up to 75 mm, creating a precise 175-250 mm usable travel window without swapping out the entire actuator.
This fine-tuning capability is ideal for product changeovers, letting you set exact end positions directly at commissioning. The extruded aluminum barrel includes dual sensor grooves for CMSE reed or DMSE electronic switches, though a magnet is not included in this configuration. Remember that the rear adjuster acts purely as a travel stop and works alongside the 50 mm air cushions to decelerate the load, but it does not lock or hold the cylinder position without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-75 |
|---|---|
| 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 SAIJ200X250-75
| 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 SAIJ200X250-75 Is Used
Heavy Machinery Setup
Dial in the exact 175-250 mm end position during heavy press commissioning without machining external stop blocks.
Product Size Changeover
Quickly adjust the stroke by up to 75 mm on packaging lines when transitioning between different large-format product sizes.
Precision Positioning
Fine-tune the retract end-stop on heavy material handling equipment to accommodate varying material thicknesses.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-75 the Right Cylinder?
The 75 mm adjustment range is highly beneficial on automated lines where end-stops must be dialed in on the fly, offering far more setup flexibility than a fixed-stroke SAI cylinder. When ordering a replacement, verify the 250 mm stroke, 75 mm adjuster, G3/4 PT port, and your required mounting bracket from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the 40 mm carbon steel rod handles significant side loads, it is well-suited for robust guiding, yet any application with long unsupported strokes still requires an external guide to prevent binding. If your process demands true load-holding without live air pressure, this standard cylinder will not suffice, and you should pivot to the SAIL air-released lock or BSAI clamp-lock series instead.
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 SAIJ200X250-75 FAQ
A rear stopper screw lets you mechanically shorten the 250 mm nominal stroke by up to 75 mm, yielding a usable travel window of 175-250 mm. This stopper only sets the end position and must not be used as a lock to hold loads without air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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