This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X35-20, 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 MALJ25X35-20
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X35-20 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 15 to 35 mm. This model is discontinued — the direct replacement is the MBLJ25X35-20.
- BoreØ25 mm
- Stroke35 mm
- Adjust window15–35 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X35-20
- 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 MALJ25X35-20
The AirTAC MALJ25X35-20 is a discontinued double-acting mini cylinder with a 20 mm rear adjustable stroke stopper. This 25 mm bore unit yields a usable stroke window of 15-35 mm. The direct replacement is the MBLJ25X35-20, matching the bore, stroke, force, G1/8 port and mounting.
This SKU lacks a magnet (-S) and cannot take a position sensor. The adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. The fixed rubber bumper softens end impact. Upgrading to the MBLJ changes the switch family from CS1-M/DS1-M to CMSG/DMSG/EMSG and swaps threaded covers for a riveted rolling-packed body.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X35-20 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X35-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X35-20 |
| Bore size | Ø25 mm |
| Stroke | 35 mm |
| Adjustable window | 15 – 35 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 MBLJ25X35-20 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 MBLJ25X35-20 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X35-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×35 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 15–35 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 MALJ25X35-20 Is Used
Contact Lens Mold Press
Fine-tune the exact compression height on a silicone hydrogel mold press, trimming the 35 mm stroke by up to 20 mm to guarantee consistent lens curvature.
Carton Flap Tucking Arm
Adjust the tucking reach on a packaging line carton sealer, preventing the rod from over-extending and crushing the corrugated flaps before the tape head passes.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X35-20 with MBLJ25X35-20
To replace the MALJ25X35-20, use the MBLJ25X35-20 direct. Confirm the 25 mm bore, 35 mm stroke, 20 mm adjust code, PT G1/8 port, and FA/LB mounting (no back cover or SDB allowed). Because this SKU has no -S magnet, it cannot accept a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches. The rear adjuster is a stop, not a lock.
Upgrade checklist
- ✓ Order the MBLJ25X35-20 (same bore/stroke/adjust)
- ✓ Same 15–35 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 MBLJ25X35-20 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X35-20 FAQ
Yes, the MALJ25X35-20 is discontinued. The direct replacement is the MBLJ25X35-20, which matches the 25 mm bore, 35 mm stroke, 20 mm adjust code, force, G1/8 port and mounting. The MBLJ upgrades the body to a riveted rolling-packed design and uses CMSG/DMSG/EMSG sensors.
The 20 mm adjuster is a travel stop that lets you trim the end position, creating a usable stroke window of 15-35 mm. It does not hold a load without live air; use an external lock for holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X35-20 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 MALJ25X35-20 → MBLJ25X35-20)
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