This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X175-50-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X175-50-S in place of this model. The MBLJ replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 50 mm, giving a usable end-position window from 125 to 175 mm. This model is discontinued — the drop-in replacement is the MBLJ40X175-50-S.
- BoreØ40 mm
- Stroke175 mm
- Adjust window125–175 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X175-50-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S
The AirTAC MALJ40X175-50-S is a discontinued double-acting mini cylinder with a 40 mm bore and a 175 mm stroke. It provides a usable extension window of 125-175 mm via its 50 mm rear adjuster. This 40 mm bore delivers 628 N push and 528 N pull at 0.5 MPa. The exact drop-in replacement is the MBLJ40X175-50-S, matching the bore, stroke, force, and G1/4 port.
This -S SKU includes a magnet for position sensing. The legacy MALJ uses CS1-M / DS1-M switches, while the MBLJ upgrade uses CMSG / DMSG / EMSG sensors. The original MALJ features threaded covers, whereas the MBLJ uses a riveted rolling-packed body. The rear adjuster acts as a travel stop to fine-tune reach without external hardware; it does not hold the load without live air. End impact is absorbed by a fixed rubber bumper, not an adjustable air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X175-50-S |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Adjustable window | 125 – 175 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.1 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 500 mm |
The rear adjuster is a travel stop, not a lock — it sets the end position but does not hold the load without live air. No back-cover code and no SDB on adjustable-stroke. The MBLJ40X175-50-S carries the same ratings.
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 | |
Single-rod force, same as a standard MAL of this bore. The MBLJ40X175-50-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×175 | Nominal stroke length in mm. |
| -50 | Adjustable amount: trim the end to a 125–175 mm window. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MBLJ uses CMSG/DMSG/EMSG). |
Replacement: MALJ → MBLJ. No back-cover (CA/U/CM) and no SDB. Mounting: FA / LB.
Where the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S Is Used
PCB Router Depth Stop
Dial the 125-175 mm window to set router Z-axis depth on a PCB depaneling machine, using the 628 N push force to hold the cutting head firmly at the trimmed end position.
Carton Flap Folder
Adjust the rear stop on a packaging line to fold varying corrugated carton flaps, relying on the fixed rubber bumper to absorb the 880 N impact at 0.7 MPa without external shock absorbers.
Aluminum Extrusion Gauge
Fine-tune the 50 mm adjuster on an extrusion cut-off saw to act as a physical depth gauge for different profile lengths, preventing rod side-load by locking the stroke before full extension.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S with MBLJ40X175-50-S
To replace the MALJ40X175-50-S with the MBLJ40X175-50-S, confirm the 40 mm bore, 175 mm stroke, 50 mm adjust code, G1/4 port, and PT thread. Mounting is Basic, FA, or LB only (no back cover or SDB). You must also change your sensors: the MALJ -S magnet works with CS1-M / DS1-M switches, but the MBLJ requires CMSG / DMSG / EMSG switches.
If sizing this 40 mm bore, stepping down to the 32 mm bore yields 402 N push at 0.5 MPa, while stepping up is not possible as 40 mm is the largest MALJ bore. Remember the adjuster is a stop, not a lock. At 175 mm stroke, minimize side-load on the 16 mm rod to prevent bending and seal wear.
Upgrade checklist
- ✓ Order the MBLJ40X175-50-S (same bore/stroke/adjust)
- ✓ Same 125–175 mm adjustable window
- ✓ Adjuster is a stop, not a lock
- ✓ No back cover / SDB — plan an FA/LB mount
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.1 – 1.0 MPa operating pressure.
- check The rear adjuster sets the end position — it is not a load lock.
- check No back-cover / SDB on adjustable-stroke — use FA / LB.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the MBLJ40X175-50-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-50-S FAQ
Yes, the MALJ40X175-50-S is discontinued. The exact drop-in replacement is the MBLJ40X175-50-S, which matches the 40 mm bore, 175 mm stroke, 50 mm adjust code, 628 N push force, and G1/4 port. You will need to upgrade your sensors from CS1-M / DS1-M to CMSG / DMSG / EMSG.
The full figure set is 628 N push and 528 N pull at 0.5 MPa, 880 N push at 0.7 MPa, and a maximum of 128 kgf at 1.0 MPa. The 50 mm adjuster provides a usable stroke window of 125-175 mm. The adjuster is a travel stop, not a lock, and it will not hold a load without live air.
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The MBLJ40X175-50-S replaces this model 1:1.
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