Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-40S
The AirTAC SAIJ200X800-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 800 mm travel back by up to 40 mm, creating a precise 760-800 mm usable end-position window. It delivers massive thrust, generating 15708 N of push force and 15080 N of pull force at 0.5 MPa, making it suited for heavy-duty automation. This variant includes an SUS420J2 stainless steel rod and a built-in magnet (-S) for position sensing.
Because the adjuster acts purely as a mechanical stop at the retract end, it does not hold the load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series. This model uses PT tapered port threads (G3/4) and relies on the extruded aluminum barrel's dual sensor grooves to support CMSE reed and DMSE electronic switches. The generous 50 mm cushion at both ends helps absorb the kinetic energy of this large bore, operating at speeds of 30-500 mm/s.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAIJ200AX800-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SAIJ200AX800-40S Is Used
Heavy Press Tonnage
Provides up to 15708 N of push force at 0.5 MPa for heavy stamping, pressing, or forming tasks that require robust, high-force actuation.
Machine Changeover
Dial in the 760-800 mm retract end-position during product line changeovers without physically swapping the cylinder or re-engineering external stop blocks.
Large Assembly Jigs
Handles massive structural alignment or clamping duties on automated assembly lines, utilizing the 50 mm air cushions to decelerate heavy loads smoothly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-40S the Right Cylinder?
When configuring heavy machinery, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which may suffice for lighter loads, but this 200 mm bore provides the maximum 15708 N if your application demands it. An adjustable stroke is chosen over a fixed SAI cylinder when you need to fine-tune the retract position during commissioning or product changeover without adding external physical stops.
For an ISO 15552 replacement match, ensure you specify the 200 mm bore, 800 mm stroke, 40 mm adjustment range, PT G3/4 ports, and the -S magnet option. Given the 800 mm stroke length, the 40 mm rod diameter and M36x2 thread still require external guiding to prevent excessive side-loading on the unsupported rod. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally 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 SAIJ200AX800-40S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder generates 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf of push force.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 800 mm nominal stroke by up to 40 mm, providing a usable travel window of 760 to 800 mm. It only sets the end position and does not lock or hold the load without continuous air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.