This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X15-20-S, 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S 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 -5 to 15 mm. This model is discontinued — the direct replacement is the MBLJ25X15-20-S.
- BoreØ25 mm
- Stroke15 mm
- Adjust window-5–15 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X15-20-S
- 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S
The AirTAC MALJ25X15-20-S is a discontinued double-acting, double-rod adjustable-stroke mini cylinder. It features a 25 mm bore, a 15 mm stroke, and a 20 mm rear adjuster, yielding a usable end-position window of 0-15 mm. The direct replacement is the MBLJ25X15-20-S, matching the bore, stroke, adjust code, and G1/8 port.
This SKU includes a magnet (-S) for position sensing. The older MALJ uses CS1-M or DS1-M switches, while the MBLJ upgrade moves to CMSG, DMSG, or EMSG sensors. The MALJ has threaded covers and a fixed rubber bumper, whereas the MBLJ features a riveted rolling-packed body. The rear adjuster acts as a travel stop to fine-tune reach without adding external stops, but it does not hold load without live air pressure.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X15-20-S |
| Bore size | Ø25 mm |
| Stroke | 15 mm |
| Adjustable window | -5 – 15 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 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 MBLJ25X15-20-S carries the same ratings.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 206 N | 206 N |
| 0.7 MPa | 289 N | — |
| Max (@1.0 MPa) | 42 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 MBLJ25X15-20-S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×15 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a -5–15 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S Is Used
Thin-sheet stopper
Acts as a depth stop in a sheet-metal feed line, trimming the 15 mm stroke down to clear varying blank thicknesses on the fly.
Light pick-place
Provides the short reach for a vacuum cup to pick small plastic lids, using the rear stop to prevent overtravel during retraction.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S with MBLJ25X15-20-S
Replace the MALJ25X15-20-S directly with the MBLJ25X15-20-S, confirming the 25 mm bore, 15 mm stroke, 20 mm adjust code, PT G1/8 port, and M10x1.25 rod thread. Mounting remains Basic, FA, or LB only, as there is no back cover or SDB option. Remember the rear adjuster is a travel stop, not a lock, and the fixed rubber bumper softens end impact rather than providing an adjustable air cushion.
Upgrade checklist
- ✓ Order the MBLJ25X15-20-S (same bore/stroke/adjust)
- ✓ Same -5–15 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 MBLJ25X15-20-S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S FAQ
Yes, the MALJ25X15-20-S is discontinued. The direct replacement is the MBLJ25X15-20-S, matching the 25 mm bore, 15 mm stroke, 20 mm adjust code, and G1/8 port. You will need to upgrade your sensors from the old CS1-M / DS1-M switches to the CMSG / DMSG / EMSG family.
The 20 mm adjust code lets you trim the 15 mm stroke at the rear, yielding a usable window of 0-15 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X15-20-S 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.
Recommended AirTAC MBLJ Replacements
Request a Quote (Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X15-20-S → MBLJ25X15-20-S)
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