This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X135-30S, 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 MALJ25X135-30S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X135-30S 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 105 to 135 mm. This model is discontinued — the direct replacement is the MBLJ25X135-30S.
- BoreØ25 mm
- Stroke135 mm
- Adjust window105–135 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X135-30S
- 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 MALJ25X135-30S
The AirTAC MALJ25X135-30S is a discontinued double-acting, double-rod mini cylinder with a 25 mm bore and 135 mm stroke. The rear screw stopper lets you trim up to 30 mm, yielding a usable end-position window of 105-135 mm. The direct replacement is the MBLJ25X135-30S, matching the bore, stroke, adjust code, port, and force.
This -S SKU includes a magnet for position sensing. On the legacy MALJ, this uses CS1-M or DS1-M switches; the MBLJ replacement upgrades to CMSG, DMSG, or EMSG sensors. The MALJ features threaded covers, while the newer MBLJ uses a riveted rolling-packed body. A fixed rubber bumper absorbs end-of-stroke impact, but the adjuster is a travel stop, not a lock—it will not hold a load without live air pressure.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X135-30S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X135-30S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X135-30S |
| Bore size | Ø25 mm |
| Stroke | 135 mm |
| Adjustable window | 105 – 135 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 MBLJ25X135-30S 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 MBLJ25X135-30S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X135-30S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×135 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 105–135 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 MALJ25X135-30S Is Used
Aluminum Extrusion Press
Fine-tunes the reach of a 135 mm ejection pin on an aluminum extrusion cutoff saw, allowing operators to adjust the 30 mm window for varying profile widths without adding external stops.
Carton Flap Folder
Times the tuck stroke on a packaging line carton sealer, relying on the fixed rubber bumper to soften the impact when folding heavy double-wall corrugated flaps.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X135-30S with MBLJ25X135-30S
To replace the MALJ25X135-30S with the MBLJ25X135-30S, confirm the 25 mm bore, 135 mm stroke, 30 mm adjust code, G1/8 port, and PT thread. Mounting is Basic, FA, or LB only (no back cover or SDB). Remember the rear dial sets the 105-135 mm end position but does not lock the payload. At 135 mm stroke, guard against rod side-load to prevent premature seal wear and rod bending.
Upgrade checklist
- ✓ Order the MBLJ25X135-30S (same bore/stroke/adjust)
- ✓ Same 105–135 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 MBLJ25X135-30S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X135-30S FAQ
Yes, the MALJ25X135-30S is discontinued. The direct replacement is the MBLJ25X135-30S, which matches the 25 mm bore, 135 mm stroke, 30 mm adjust code, G1/8 port, and mounting. You will only need to update your sensors: the old MALJ -S magnet used CS1-M or DS1-M switches, while the new MBLJ uses CMSG, DMSG, or EMSG switches.
The 30 mm adjuster is a travel stop that lets you shorten the end position, creating a usable stroke window of 105-135 mm. It does not hold the load without live air, so an external lock is required for load-holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X135-30S 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
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