This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X200-30S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SUJ Adjustable Cylinder SUJ40X200-30S
The AirTAC SUJ Adjustable Cylinder SUJ40X200-30S is a double-acting profile-type standard cylinder with a Ø40mm bore and 200mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X200-30S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke200 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X200-30S
- 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 SUJ Adjustable Cylinder SUJ40X200-30S
The AirTAC SUJ40X200-30S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 170-200 mm extend out of the 200 mm nominal maximum. The 1/4" port and M12x1.25 rod thread are fixed by the bore, and adjustable 21 mm cushions decelerate the piston near stroke end.
This SUJ model is discontinued; the direct replacement is the SAUJ40X200-30S, matching the bore, stroke, force, 1/4" port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit uses CS1-B/DS1-B switches. The adjust stop sets end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X200-30S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X200-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X200-30S |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ40X200-30S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUJ40X200-30S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ40X200-30S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SUJ Adjustable Cylinder SUJ40X200-30S Is Used
Variable Depth Boring
Adjusting the extend stroke on-site by up to 30 mm allows precise depth control for boring or drilling heads without swapping the entire cylinder.
Adjustable Transfer Stops
Trimming the extend stroke lets transfer arms accommodate different package sizes on the fly, ensuring packages halt at the exact required position.
Variable Height Indexing
Fine-tuning the extend endpoint by up to 30 mm enables a single cylinder to index parts to slightly different vertical heights for downstream operations.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X200-30S with the SAUJ40X200-30S
To replace the discontinued SUJ40X200-30S, order the direct replacement SAUJ40X200-30S, keeping the 200 mm maximum stroke and 30 mm adjust window. Retain your FA or LB mounting brackets, and note that the -S suffix on the new SAUJ requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches. For this 200 mm stroke, verify side-load alignment to prevent rod seal wear. The external stop screw trims the extend stroke on-site but does not lock the load mechanically.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X200-30S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SUJ Adjustable Cylinder SUJ40X200-30S FAQ
Yes, the SUJ40X200-30S is discontinued. The direct replacement is the SAUJ40X200-30S, offering the same 40 mm bore, 200 mm stroke, 30 mm adjust window, 1/4" port, and FA/LB mounting. You will need to upgrade your position sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors.
The external stop screw offers a 30 mm adjustment window, allowing you to trim the 200 mm maximum extend stroke down to 170 mm on-site. This stop sets the end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X200-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X200-30S replacement — usually within 7-8 hours.