This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X200-40, 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 SUJ50X200-40
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X200-40 is a double-acting profile-type standard cylinder with a Ø50mm bore and 200mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ50X200-40, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke200 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X200-40
- 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 SUJ50X200-40
The AirTAC SUJ50X200-40 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 160-200 mm extension from the 200 mm nominal maximum. The extruded aluminum profile barrel is notably shorter than a standard cylinder of the same 50 mm bore. This specific SKU is DISCONTINUED; the direct replacement is the SAUJ50X200-40, which preserves the bore, stroke, force, 1/4" port, and FA/LB mounting interface.
The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. Because this base model lacks a magnet (-S), it cannot accept magnetic switches, whereas the SAUJ successor upgrades sensing to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B.
Airtac SUJ Adjustable Cylinder SUJ50X200-40 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X200-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X200-40 |
| Bore size | Ø50 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 SAUJ50X200-40 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAUJ50X200-40 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 SUJ50X200-40
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | 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 SUJ50X200-40 Is Used
Variable Pitch Sorting
Tuning the extend stroke by up to 40 mm on-site to accommodate different product lengths on a profile cylinder without swapping the entire actuator.
Custom Height Indexing
Trimming the 200 mm extend down to 160 mm for varying pallet heights, using the external stop screw to dial in the exact required reach.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X200-40 with the SAUJ50X200-40
To replace the discontinued SUJ50X200-40, order the SAUJ50X200-40 direct: it maintains the 50 mm bore, 200 mm max stroke, 40 mm adjust window, 1/4" port, and FA/LB/Basic SC-series mounting. Select the 40 mm adjust window if your end-stop position varies by up to 40 mm; remember the external stop sets end position and is not a lock, so external rod locks are required for load holding. For stroke lengths of 300 mm or greater, carefully verify side-load limits to prevent guide bushing wear. This non-magnet version cannot take sensors; upgrading to the SAUJ allows modern CMSG/DMSG/EMSG switches.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X200-40
- ✓ 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 SUJ50X200-40 FAQ
Yes, the SUJ50X200-40 is discontinued. The direct replacement is the SAUJ50X200-40, which matches the 50 mm bore, 200 mm stroke, 40 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also upgrades sensor compatibility to CMSG/DMSG/EMSG switches.
The external stop screw provides a 40 mm adjust window, allowing you to shorten the 200 mm nominal extend stroke down to 160 mm on-site.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X200-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X200-40 replacement — usually within 7-8 hours.