This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ20X125-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ20X125-30 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 MALJ20 Adjustable Mini Cylinder MALJ20X125-30
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-30 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 30 mm, giving a usable end-position window from 95 to 125 mm. This model is discontinued — the drop-in replacement is the MBLJ20X125-30.
- BoreØ20 mm
- Stroke125 mm
- Adjust window95–125 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X125-30
About the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-30
The AirTAC MALJ20X125-30 is a discontinued double-acting, single-rod mini cylinder with a rear adjustable stroke stopper. It has a 20mm bore, 125mm stroke, and a 30mm adjust code, giving a usable end-position window of 95-125mm. The fixed rubber bumper absorbs end impacts, but the adjuster is a travel stop, not a lock. This SKU lacks a magnet and cannot accept a position sensor. It delivers 157N push and 132N pull at 0.5MPa.
The exact drop-in replacement is the MBLJ20X125-30, matching the 20mm bore, 125mm stroke, 30mm adjust code, G1/8 port, and FA/LB mounting. Upgrading moves you from threaded covers to a riveted rolling-packed body. If you previously used a -S magnet model, the older CS1-M/DS1-M switches are replaced by CMSG/DMSG/EMSG sensors on the MBLJ.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-30 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X125-30 |
| Bore size | Ø20 mm |
| Stroke | 125 mm |
| Adjustable window | 95 – 125 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 300 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 MBLJ20X125-30 carries the same ratings.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Single-rod force, same as a standard MAL of this bore. The MBLJ20X125-30 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×125 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 95–125 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 MALJ20 Adjustable Mini Cylinder MALJ20X125-30 Is Used
PCB Depaneling Saw
Dials the exact 95-125mm blade drop on an inline PCB depaneling saw, using the 157N push at 0.5MPa to cut FR4 without stressing the panel.
Wire Straightener
Sets a precise retraction stop on a wire feed mechanism, trimming the 30mm window to true the wire end before a stripping operation.
Micro-Clamp Fixture
Adjusts the clamp reach on a small pneumatic fixture, tuning the jaw position to hold delicate machined aluminum parts without crushing them.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-30 with MBLJ20X125-30
To replace the MALJ20X125-30, order the drop-in MBLJ20X125-30, confirming the 20mm bore, 125mm stroke, 30mm adjust code, G1/8 PT port, and FA/LB mounting (no back cover or SDB). Since this SKU has no -S magnet, it cannot hold a sensor. The rear adjuster sets the 95-125mm end position but does not hold load without live air; use an external lock for suspended loads. Stepping down, the 32mm bore yields 402N push at 0.5MPa; stepping up is not applicable as 20mm is the smallest bore. At 125mm stroke, guard against rod bending by minimizing side loads on the 8mm rod.
Upgrade checklist
- ✓ Order the MBLJ20X125-30 (same bore/stroke/adjust)
- ✓ Same 95–125 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 MBLJ20X125-30 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-30 FAQ
Yes, the MALJ20X125-30 is discontinued. The exact drop-in replacement is the MBLJ20X125-30, which matches the 20mm bore, 125mm stroke, 30mm adjust code, G1/8 port, and FA/LB mounting. The MBLJ upgrades the threaded covers to a riveted rolling-packed body.
The 20mm bore provides 157N push and 132N pull at 0.5MPa, 220N push at 0.7MPa, and a maximum of 32 kgf at 1.0MPa. The 30mm adjust code allows you to trim the rear position, creating a usable stroke window from 95mm to 125mm. The adjuster is a travel stop, not a lock.
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The MBLJ20X125-30 replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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