This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ32X50-20-LB, with the same bore, stroke, output force, port and mounting, so it fits the same application. The MBLJ replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB
The AirTAC Airtac MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 20 mm, giving a usable end-position window from 30 to 50 mm. This model is discontinued — the direct replacement is the MBLJ32X50-20-LB.
- BoreØ32 mm
- Stroke50 mm
- Adjust window30–50 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ32X50-20-LB
- 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 MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB
The AirTAC MALJ32X50-20-LB is a discontinued double-acting mini cylinder with a rear screw stopper. The -20 adjust code lets you trim up to 20 mm, creating a usable stroke window of 30-50 mm. The direct replacement is the MBLJ32X50-20-LB, matching the 32 mm bore, 50 mm stroke, G1/8 port, and LB foot mount.
This SKU lacks the -S magnet, so it cannot take a position sensor. The adjuster sets the end position but is a travel stop, not a lock—it will not hold a load without live air. The fixed rubber bumper softens impact, but unlike the newer MBLC, there is no adjustable air cushion. Upgrading to the MBLJ moves you from threaded covers to a riveted rolling-packed body.
Airtac MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB Technical Specifications
| Model | Airtac MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ32X50-20-LB |
| Bore size | Ø32 mm |
| Stroke | 50 mm |
| Adjustable window | 30 – 50 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 MBLJ32X50-20-LB carries the same ratings.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 kgf | |
MALJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod MAL push of the same bore. The MBLJ32X50-20-LB matches these values.
Model Code: Airtac MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 32 | Bore size in mm (20/25/32/40). |
| ×50 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 30–50 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 MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB Is Used
PCB Depaneling Saw Stop
Dials the blade plunge depth precisely within the 30-50 mm window.
Aluminum Extrusion Notching
Sets the exact notch depth on an indexing mill. The rear stopper lets you fine-tune the 50 mm stroke without machining new hard stops, saving setup time.
Carton Flap Tucking
Adjusts the tucker arm reach for varying box heights. The fixed rubber bumper absorbs the repeated 346 N pull impact, preventing damage to the folding mechanism.
Replacing the Airtac MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB with MBLJ32X50-20-LB
To replace this MALJ32X50-20-LB with the MBLJ32X50-20-LB, confirm the 32 mm bore, 50 mm stroke, 20 mm adjust code, PT G1/8 port, and LB foot mount. Note the sensor change: because this old SKU has no -S magnet it cannot take a sensor, but if you ever needed one, the MBLJ uses CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M. Remember the rear adjuster is a stop, not a lock.
The 32 mm bore uses a Ø12 mm rod with an M10x1.25 rod-end thread. Mounting is LB only; there is no back cover or SDB option.
Upgrade checklist
- ✓ Order the MBLJ32X50-20-LB (same bore/stroke/adjust)
- ✓ Same 30–50 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 MBLJ32X50-20-LB instead of this discontinued model.
Airtac MALJ32 Adjustable Mini Cylinder MALJ32X50-20-LB FAQ
Yes, it is discontinued. The direct replacement is the MBLJ32X50-20-LB, matching the 32 mm bore, 50 mm stroke, 20 mm adjust code, G1/8 port, and LB mount. The MBLJ upgrades the construction from threaded covers to a riveted rolling-packed body.
At 0.5 MPa it pushes 402 N and pulls 346 N. At 0.7 MPa it pushes 563 N, with a maximum force of 82 kgf at 1.0 MPa. The -20 adjust code lets you trim the 50 mm stroke rearward, creating a 30-50 mm usable window. This adjuster is a travel stop, not a lock.
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Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ32X50-20-LB replaces this model 1:1.
Fast Dispatch
MBLJ replacements are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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