Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-30S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X850-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 850mm 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
- Stroke850 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 SAIJ200X850-30S
The AirTAC SAIJ200X850-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. The external stopper allows you to fine-tune the retract end-position, providing a usable travel window of 820-850 mm for this 850 mm nominal stroke.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during commissioning. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches, while the robust 40 mm carbon steel rod and M36x2 thread handle high side-load stresses effectively.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 850 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 SAIJ200X850-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×850 | 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 SAIJ200X850-30S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance within the 820-850 mm window to accommodate varying product dimensions on the fly without changing cylinder hardware.
Machine Changeover Setup
Quickly fine-tune the end-of-stroke position during product line changeovers, using the rear screw to set new limits rapidly instead of re-engineering fixed stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-30S the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers without mechanical rebuilds. Because the 850 mm stroke exceeds standard lengths, it requires careful external guiding to prevent rod binding.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 850 mm stroke, 30 mm adjustment, PT tapered port threads, and the -S magnet. Remember that the rear adjuster acts only as a travel stop and the air cushions manage deceleration; neither holds the load without live air. For true load-holding without pressure, consider the SAIL or BSAI series, or use an external pilot-operated check valve.
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 SAIJ200X850-30S FAQ
The rear adjusting screw acts as a mechanical stopper that lets you shorten the effective stroke by up to 30 mm. This creates a usable travel window of 820-850 mm, allowing precise end-position tuning at commissioning without swapping the cylinder.
The maximum thrust at 1.0 MPa is 3204 kgf.
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 SAIJ200X850-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.