This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ63X400-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ63X400-40S in place of this model. 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 SUJ63X400-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ63X400-40S is a double-acting profile-type standard cylinder with a Ø63mm bore and 400mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ63X400-40S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke400 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ63X400-40S
About the Airtac SUJ Adjustable Cylinder SUJ63X400-40S
The AirTAC SUJ63X400-40S is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, giving a usable 360-400 mm extension out of the 400 mm nominal maximum. The 63 mm bore delivers 1559 N push and 1402 N pull at 0.5 MPa, peaking at 2805 N push at 0.9 MPa. It features a 20 mm rod, M16x1.5 rod thread, and a 3/8" port. This discontinued unit is replaced drop-in by the SAUJ63X400-40S, sharing the same bore, stroke, force, and SC-series FA/LB mounting.
For sizing, a safe working load is roughly 935 N (60% of the 0.5 MPa push), or a 79 kg vertical lift with a 2:1 margin. The SAUJ upgrade transitions from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches while retaining the compact profile barrel. The stop screw sets the end position but is not a load lock; without live air the piston drifts, so use an external rod lock for held loads. At 400 mm stroke, use external guides to prevent rod bending.
Airtac SUJ Adjustable Cylinder SUJ63X400-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ63X400-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X400-40S |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ63X400-40S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAUJ63X400-40S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ63X400-40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×400 | 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 SUJ63X400-40S Is Used
Variable Depth Boring
Trimming the 400 mm extend stroke by up to 40 mm on-site to hit exact material depths on custom fixtures without swapping the entire cylinder.
Adjustable Diverter Arms
Tuning the extend stop in 360-400 mm range to accommodate different package sizes on a packaging line without reprogramming logic.
Custom Format Pushers
Setting precise ejection endpoints for varied pallet dimensions, using the external stop screw to dial in the exact required stroke.
Replacing the Airtac SUJ Adjustable Cylinder SUJ63X400-40S with the SAUJ63X400-40S
To replace the discontinued SUJ63X400-40S, order the exact drop-in SAUJ63X400-40S, which preserves the 63 mm bore, 400 mm stroke, 40 mm adjust window, 3/8" port, and FA/LB mounting. If resizing, neighbouring bores offer 50 mm (982 N push @0.5 MPa) or 80 mm (2513 N push @0.5 MPa). Choose the 40 mm adjust window if you need 360-400 mm field tuning; smaller windows reduce screw overhang. Because this is an -S model, swap legacy CS1-B/DS1-B sensors for CMSG/DMSG/EMSG switches on the SAUJ. For the 400 mm stroke, add external guides to manage side-load and rod-bending. The stop screw sets end position only; add an external rod lock for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ63X400-40S
- ✓ 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 SUJ63X400-40S FAQ
Yes, the SUJ63X400-40S is discontinued. The exact drop-in replacement is the SAUJ63X400-40S, matching the 63 mm bore, 400 mm stroke, 40 mm adjust window, 3/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 63 mm bore single-rod cylinder pushes 1559 N and pulls 1402 N at 0.5 MPa, pushes 2182 N at 0.7 MPa, and 2805 N at 0.9 MPa (max 318 kgf at 1.0 MPa). The external stop screw provides a 40 mm adjust window, shortening the 400 mm nominal extend stroke to a 360-400 mm usable range. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
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